WO2004024050A1 - 陰唇間パッド - Google Patents
陰唇間パッド Download PDFInfo
- Publication number
- WO2004024050A1 WO2004024050A1 PCT/JP2003/010767 JP0310767W WO2004024050A1 WO 2004024050 A1 WO2004024050 A1 WO 2004024050A1 JP 0310767 W JP0310767 W JP 0310767W WO 2004024050 A1 WO2004024050 A1 WO 2004024050A1
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- WO
- WIPO (PCT)
- Prior art keywords
- labia
- layer
- fluid storage
- interlabial pad
- body fluid
- Prior art date
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Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F13/00—Bandages or dressings; Absorbent pads
- A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
- A61F13/53—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium
- A61F13/534—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium having an inhomogeneous composition through the thickness of the pad
- A61F13/537—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium having an inhomogeneous composition through the thickness of the pad characterised by a layer facilitating or inhibiting flow in one direction or plane, e.g. a wicking layer
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F13/00—Bandages or dressings; Absorbent pads
- A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
- A61F13/53—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium
- A61F13/534—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium having an inhomogeneous composition through the thickness of the pad
- A61F13/537—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium having an inhomogeneous composition through the thickness of the pad characterised by a layer facilitating or inhibiting flow in one direction or plane, e.g. a wicking layer
- A61F13/53743—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium having an inhomogeneous composition through the thickness of the pad characterised by a layer facilitating or inhibiting flow in one direction or plane, e.g. a wicking layer characterised by the position of the layer relative to the other layers
- A61F13/53747—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium having an inhomogeneous composition through the thickness of the pad characterised by a layer facilitating or inhibiting flow in one direction or plane, e.g. a wicking layer characterised by the position of the layer relative to the other layers the layer is facing the topsheet
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F13/00—Bandages or dressings; Absorbent pads
- A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F13/00—Bandages or dressings; Absorbent pads
- A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
- A61F13/20—Tampons, e.g. catamenial tampons; Accessories therefor
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F13/00—Bandages or dressings; Absorbent pads
- A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
- A61F13/45—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the shape
- A61F13/47—Sanitary towels, incontinence pads or napkins
- A61F13/472—Sanitary towels, incontinence pads or napkins specially adapted for female use
- A61F13/47209—Sanitary towels, incontinence pads or napkins specially adapted for female use having only interlabial part, i.e. with no extralabial parts
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F13/00—Bandages or dressings; Absorbent pads
- A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
- A61F13/53—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium
- A61F13/534—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium having an inhomogeneous composition through the thickness of the pad
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F13/00—Bandages or dressings; Absorbent pads
- A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
- A61F13/53—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium
- A61F13/534—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium having an inhomogeneous composition through the thickness of the pad
- A61F13/537—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium having an inhomogeneous composition through the thickness of the pad characterised by a layer facilitating or inhibiting flow in one direction or plane, e.g. a wicking layer
- A61F13/53708—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium having an inhomogeneous composition through the thickness of the pad characterised by a layer facilitating or inhibiting flow in one direction or plane, e.g. a wicking layer the layer having a promotional function on liquid propagation in at least one direction
- A61F13/53713—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium having an inhomogeneous composition through the thickness of the pad characterised by a layer facilitating or inhibiting flow in one direction or plane, e.g. a wicking layer the layer having a promotional function on liquid propagation in at least one direction the layer having a promotional function on liquid propagation in the vertical direction
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F13/00—Bandages or dressings; Absorbent pads
- A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
- A61F13/15203—Properties of the article, e.g. stiffness or absorbency
- A61F2013/15284—Properties of the article, e.g. stiffness or absorbency characterized by quantifiable properties
- A61F2013/15422—Density
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S604/00—Surgery
- Y10S604/904—Tampons
Definitions
- the present invention relates to an interlabial pad that can be accurately worn between the labia, and does not fall off even when the body fluid such as menstrual blood is absorbed and becomes moist, thereby maintaining an accurate wearing.
- sanitary napkins and tampons have been commonly used as feminine sanitary products.
- sanitary napkins a great deal of effort has been made to prevent menstrual blood from leaking from gaps due to poor adhesion near the vaginal opening.
- tampons a great deal of effort has been made to eliminate these, because of the attributes of the articles, which may cause foreign-body sensation and discomfort when worn, and difficulty in wearing them in the vagina.
- an interlabial pad As a sanitary product located between the sanitary napkin and the tampon, a sanitary product called an interlabial pad has recently attracted attention.
- This interlabial pad is to be inserted between the labia of a woman, and is more tightly adhered to the body than a sanitary napkin, so it is less likely to leak menstrual blood. In comparison, it has a low psychological resistance when worn.
- Japanese Patent Publication No. 2002-050566 discloses a characteristic of such an interlabial device or pad absorbent.
- the absorber includes a capturing member having a first pore having a first pore volume distribution, and a storage member in fluid communication with the capturing member.
- the capturing member Wherein the first pore volume distribution is such that at least 75% of the first pores have a capillary radius of about 20 microns or more, and the average capillary radius of the storage member is the average capillary radius of the first pores. It is characterized by having a second pore set smaller than that.
- the capturing member and the wearer's vestibular floor can be brought into contact with each other so that menstrual blood excreted from the vaginal opening can be directly captured, and captured by a storage member having a small average capillary radius by capillary action. Menstrual blood can be distributed. Therefore, even if menstrual blood is excreted again without collecting menstrual blood at the capturing member, menstrual blood can be directly captured directly by the capturing member. In addition, it is thought that menstrual blood that is gradually excreted can be sufficiently captured and menstrual leakage can be reduced.
- the storage member having a small average capillary radius that is, a high density
- the capturing member is disposed outside so as to sandwich the capturing member extending downward along the longitudinal center line from the lateral side, so that the main body portion of the absorber is formed. Is composed.
- the capturing member was designed to have a lower density than the storage member. Therefore, a change in the shape of the labia that is easily deformed due to a change in the behavior of the wearer or the external pressure of clothes, etc., is difficult to follow.
- the labia when external pressure is applied to the labia from below in the vertical direction (from the tip of the labia to the vestibular floor) due to the pressing of the underwear or the behavior of the wearer sitting in a chair, the labia It bends to the left and right so that it collapses, causing irregularities on the inner wall of the labia to deform. Further, when such external pressure is released, a change in behavior, for example, when the erect state is reached, the inner wall of the labia returns to a substantially flat shape.
- the shape of the inner wall of the labia is easily deformed by external pressure due to a change in the behavior of the wearer, but in the above-described conventional technology, a storage member having a high density is arranged at a position close to the inner wall of the labia. Therefore, it is considered that the storage member is difficult to deform following the storage member, and the space between the storage member and the inner wall of the labia is easily generated. Therefore, the contact area of the interlabial device or pad with the labia There is a possibility that the interlabial pad may fall off due to a decrease in the height and the rigidity of the storage member given to the wearer, that is, a foreign-body sensation may occur.
- the route of excretion of menstrual blood is generally divided into 1) a route that stays in the vicinity of the vagina, 2) a route that flows in the front-rear direction along the vestibular floor, and 3) a route that flows down the inner wall of the labia.
- (1) and (2) are excretion routes that excrete at a relatively low rate and are excreted gradually in a small amount.
- (3) shows that a large amount of menstrual blood that has accumulated in the uterus during instantaneous changes in the wearer's movements. Since it is excretion, the excretion flow rate is high and it is considered to be a large amount of excretion route.
- the menstrual blood which has been excreted again can be captured by directly capturing from the vicinity of the vaginal opening by the capturing member and circulating to the storage member.
- menstrual blood can easily stay at the interface between the inner labial wall and the surface of the interlabial pad, and the fluidity of the menstrual blood allows the menstrual blood to accumulate. And the risk of the interlabial pad falling off increases. Disclosure of the invention
- the present invention reduces the foreign body sensation to the wearer by making it easily deformable by following the behavior change of the labyrinth inner wall, and in the excretion route of menstrual blood that is excreted downward along a large amount at high speed along the labyrinth inner wall. It also ensures that menstrual blood is captured and stored to prevent leakage of menstrual blood, and that menstrual blood accumulates from the clothing side of the absorber, making it difficult for menstrual blood to stay on the surface of the interlabial pad. It is intended to provide an interlabial pad which also reduces the detachment of the pad.
- an interlabial pad that has a shape that can be easily sandwiched between the labia of a woman and is made of an absorber that absorbs bodily fluids and a covering material that covers the absorber.
- the labia following layer arranged close to the labia and the labia following layer are arranged so that menstrual blood can pass through the labia following layer
- an interlabial pad characterized by comprising: a body fluid storage layer;
- the interlabial pad is characterized in that the labia follower layer is more easily compressed than the body fluid storage layer, so that it is easily deformed when worn, and has an apparent density lower than that of the body fluid storage layer.
- the labia follow-up layer that can be more easily compressed and deformed than the body fluid storage layer is arranged near the inner wall of the labia. Therefore, even if the labia are bent left and right around the vertical direction and the inner wall of the labia is deformed due to unevenness, the labia following layer can easily be compressed and deformed in response to a change in the behavior of the inner labia wall. Furthermore, since at least a part of the body fluid storage layer facing the inner wall of the labia is covered with the labia follow-up layer, the rigidity of the body fluid storage layer can be reduced by the labia follow-up layer, so that a foreign body sensation to the wearer can be reduced. .
- a labia following layer with a lower density is set closer to the inner wall of the labia, and a body fluid storage layer with a higher density is installed on the opposite side.
- the labia follow-up layer can easily deform against the morphological changes of the vestibule floor and the inner wall of the labia, and therefore can capture menstrual blood even in the high-speed and large amount of excretion route flowing down the inner wall of the labia.
- Menstrual blood captured in the labia following layer can accumulate in the body fluid storage layer by capillary action. For this reason, it is possible to make it difficult for menstrual blood to stay on the surface of the interlabial pad. Therefore, it is possible to prevent the interlabial pad from falling off due to the flow of menstrual blood.
- the sanitary napkin absorber has at least a two-layer structure.By setting the lower layer higher than the upper layer, the menstrual blood trapped in the upper layer is transferred to the lower layer by capillary action. By storing menstrual blood in the lower layer, even if menstrual blood is excreted again, it is possible to capture menstrual blood again in the upper layer, and to prevent menstrual blood from returning due to changes in body pressure This can reduce the risk of menstrual leakage.
- the upper layer is made convex to make it adhere to the concave labrum of women, By covering the upper layer with the lower layer, the adhesion with the vulva was improved. Therefore, the lower layer portion needs to be larger in size than the upper layer portion, and the short dimension is a condition that the lower layer portion is larger than the upper layer portion.
- the surface of the body fluid storage layer (for example, the lower layer) near the inner wall of the labia is covered with a labia follow-up layer (for example, the upper layer) to reduce the feeling of strangeness to the wearer, Further, the adhesion between the vulva and the labia following layer can be enhanced, and menstrual leakage can be prevented.
- the depth of the labia of a woman varies depending on individual differences and changes in body posture.However, even when the depth between the labia changes, the short dimension of the absorber is set to the labia following layer rather than the body fluid storage layer.
- the present invention provides the following.
- An interlabial pad comprising an absorber for absorbing body fluid and a covering material for covering the absorbent body, wherein the covering material is a body surface facing the labia of a wearer, and the absorption An absorbent body side surface facing the body, wherein the absorbent body includes a labia following layer and a bodily fluid storage layer, and at least a part of the labia following layer is formed of the covering material and the bodily fluid storage layer.
- the body fluid storage layer is disposed between the labial labial layer and the body fluid storage layer so that the bodily fluid can be moved from the labia compliant layer.
- the interlabial pad, wherein the labia following layer is more flexible than the bodily fluid storage layer.
- the “coating material” may constitute a part of the exterior of the interlabial pad of the present invention. Therefore, it may come into direct or indirect contact with the inner wall of the wearer's labia.
- the “body side facing the labia of the wearer” may include a surface on which the covering material can come into contact with the inner wall of the labia of the wearer.
- This "absorber "Absorber side facing” may include the so-called back side of the body side of the dressing.
- This covering material ′ may include a sheet-like member that spreads two-dimensionally.
- the “labial following layer” is at least partially disposed between the covering material and the body fluid storage layer, but the exterior of the labia following layer may also serve as the covering material. Therefore, the condition in which the labia following layer apparently directly contacts the inner wall of the labia may be included.
- the labia following layer can directly or indirectly contact the inner wall of the labia without intervening the body fluid storage layer, and can follow its own shape according to the shape of the inner wall. At this time, it follows the covering material, and this covering material may include the exterior of the labia following layer itself.
- the labia following layer is preferably easier to deform than the body fluid storage layer in a dry state and / or in a wet state after absorbing body fluid (or menstrual blood), and is particularly compressed when compressive deformation is required.
- the method is easy.
- the compression stiffness (LC) Kertotech Co., Ltd., "KES compression characteristics”
- the labia follow-up layer is more preferably lower than the body fluid storage layer regardless of whether it is dry or wet.
- body fluid is a broad concept including menstrual blood.
- the absorber by making the short dimension of the labia following layer larger than that of the body fluid storage layer, it is possible to suppress the generation of a gap between the inner wall of the labia and the interlabial pad, but if it is too large, the labia In some cases, the balance between the pinching force and the repulsive force may make it undesirable.
- the ⁇ body fluid storage layer '' has a higher apparent density than the labia follow-up layer and gives a more rigid feeling.Therefore, placing the labia follow-up layer in the middle prevents the sense of rigidity from being transmitted to the inner wall of the labia. Can be.
- the body fluid storage layer is preferably in a porous state, and may include, for example, a layer composed of a fiber aggregate or the like, but is not limited thereto. For example, a continuous matrix having many holes may be included. Such a hole
- the radius of the capillary eg, the average radius
- the force may be smaller than the corresponding radius of the labia following layer.
- the capillary phenomenon is caused by the wettability of a solid that comes into contact with a liquid, and such a phenomenon can be accelerated by surface treatment.
- the labyrinth following layer which is set at a low density, easily deforms according to the shape of the vestibular floor and the labia inner wall of a woman, and allows menstrual blood to flow between the surface of the labia inner wall and the labia following layer without opening a gap.
- the body fluid can be moved from the inner wall or the like to the labia following layer, and further, can be continuously moved to the body fluid storage layer by capillary action.
- the structure of the absorber may be any as long as at least a part of the body side of the body fluid storage layer is covered with the labia following layer.
- the clothing side of the body fluid storage layer may not be covered by the labia following layer. Therefore, it is sufficient that at least a part of the coating material disposed between the labia following layer and the inner wall of the labia is water-permeable. Further, the coating material in contact with the bodily fluid storage layer can have water impermeability.
- the “absorber” consisting of the labia-following layer and the body fluid storage layer shown here is deposited, for example, so that the density gradually increases from the body side (upper surface) to the clothing side (lower surface). It is desirable to be in a state where it cannot be clearly judged that the structure has at least two layers. This is because the degree of freedom of the absorber structure considered substantially as a one-layer structure may be restricted with respect to the behavior change on the body side (upper surface) and the clothes side (lower surface) of the absorber. . Since the absorber has at least a two-layer structure including a labia follow-up layer and a body fluid storage layer, the absorber may have a structure of three or more layers.
- the third layer it is preferable to lay the third layer at a position that does not impede the role sharing of the labia on the body side (upper surface) of the absorber and the storage of menstrual blood on the clothing side (lower surface). For example, between the labia following layer and the body fluid storage layer Intervening the third layer.
- the apparent density of the absorber is the value of the absorber at the location where the designer intended to contact the vaginal opening. The measuring method will be described later.
- the absorber has a size, weight and softness that can be easily sandwiched and held between labia, and is substantially vertically elongated having a longitudinal direction and a lateral direction.
- the “diffusion layer” may be a layer that can appropriately disperse the absorbed body fluid.
- the diffusion layer may suppress the influence of the deformation of the labia following layer on the body fluid storage layer.
- the diffusion layer may include a thin sheet or sheet-like material such as a tissue.
- the diffusion layer is desirably water-permeable, and may have various structures and forms, such as woven fabric, knitted fabric, and papermaking. "Disposed between the labia following layer and the bodily fluid storage layer” means that part of the diffusion layer has at least two surfaces, one of which is on the labia following layer and the other is on the bodily fluid. It is preferable to include the case of contact with the storage layer.
- the diffusion layer is a two-dimensionally spread sheet-like material
- the diffusion layer preferably has a higher Krem water absorption in the longitudinal direction than the labia following layer.
- the specific configuration of the diffusion layer is as follows. Rayon 100% fiber having a fineness of 1, 1 to 4.4 dt X and a fiber length of 25 to 51 mm is entangled by a water stream and mesh-patterned to obtain a basis weight of 2. It is preferable to select a spunlaced nonwoven fabric having a thickness of 0 to 50 g Zm 2 and a thickness of 0.2 to 1.0 mm.
- the diffusion layer cuts the menstrual blood diffusion in the transverse direction by applying slit processing in the longitudinal direction to orient the fibers in the longitudinal direction to orient the diffusion area of the menstrual blood in the longitudinal direction.
- menstrual blood can be induced in the direction of fiber orientation, and embossing can be applied to the high-density region extending in the longitudinal direction to induce menstrual blood in the longitudinal direction by capillary action.
- the rigidity of the diffusion layer may be increased. More preferred examples include a spunlace nonwoven fabric mesh-puttered by a water flow, a nonwoven fabric subjected to slit processing in a longitudinal direction, and the like.
- the capillary force is increased, and the slit processing further increases the Krem water absorption in the longitudinal direction, increases the flexibility as a diffusion layer, and facilitates the deformation of the labia following layer.
- the size of the diffusion layer is not particularly limited, the size of the diffusion layer in the longitudinal direction must be equal to or larger than the size of the body fluid storage layer in order to further utilize the maximum absorption amount of the body fluid storage layer in the front and rear regions. Is preferred.
- the labia follower layer has a fineness of 1.1 to 4.4 dtx, a fiber length of 20 to 51 mm, 60 to 90% rayon, and a natural cotton of 4 to 90%.
- the body fluid storage layer contains 80 to 99% of pulp selected from the fiber length range of 1 to 10 mm, and the particulate polymer absorber 20 to 1 %, And the resulting fibers are
- An absorber having a total basis weight of 50 to 450 g / m 2 and a total apparent thickness of 2 to 2 Omm is given as an example. Covering the entire absorbent body on the clothing side of the bodily fluid storage layer with a covering material may improve productivity. Examples of the covering material include a tissue set at a basis weight of 15 g / m 2 and the like.
- the garment side of the body fluid storage layer is covered with Tisshi Interview of basis weight 1 0 ⁇ 20 gZm 2, the body fluid storage layer of the upper surface , the pulp selected from a range of fiber length 1 to 1 Omm basis weight 6 0 ⁇ 1 20 g / m 2 is laminated on the diffusion layer at the body side of the body fluid storage layer, fineness 1. 1 ⁇ 4.
- the apparent thickness of the labia following layer is preferably 1.0 to 14 mm, and the apparent thickness of the bodily fluid storage layer is 0.6 to 6.0 mm. Rukoto is preferable.
- the interlabial pad described above has a bending axis substantially parallel to the longitudinal direction at substantially the center in the short direction, and is sandwiched between the labia of the wearer in a state of being bent by the bending axis.
- the folded state may include a completely folded state to a slightly opened state.
- a state where the back side sheets are in contact with each other or a state where the back side sheets are separated for some minutes may be included.
- the covering material includes a front sheet and a back sheet, the front sheet is water-permeable, the back sheet is water-permeable or water-impermeable, and the coating material is The interlabial pad according to any one of (1) to (6), wherein the absorber is included between the front side sheet and the back side sheet.
- the coating material can be formed of one type of material, but can also be composed of two or more types of materials. Further, its function, for example, water permeability may be changed depending on the position of the coating material. This change may be made by changing the materials and bonding them together, or the same material may be subjected to different treatments in different places to change the function from place to place.
- the labia follow-up layer and the bodily fluid storage layer are spread in the longitudinal direction and the lateral direction, and the labia follow-up layer and the bodily fluid storage layer overlap with each other, and the absorber is the coating material.
- the interlabial pad according to any one of (3) to (7), wherein the pad is arranged such that the labia following layer is in contact with the side surface of the absorber.
- the composition ratio of the apparent thickness constituting the absorber is preferably set in the range of 60/40 to 95/5 for the labia following layer and the body fluid storage layer.
- the thickness of the interlabial pad when worn between the labia is preferably between 2 and 20 mm, more preferably between 4 and 1 Omm. In particular, if the thickness is less than 2 mm, the thickness becomes even smaller (thinner) when menstrual blood is absorbed, and the repulsive force generated by the pinching force of the labia weakens, so the interlabial pad falls off from between the labia. There is a possibility that it will.
- the composition ratio of the apparent thickness constituting the absorber is preferably set in the range of 60/40 to 95/5 for the labia following layer / body fluid storage layer. If the composition ratio of the apparent thickness is set smaller than 60/40, the wearability of the body fluid storage layer may be reduced due to a decrease in the ability to follow the change in the behavior of the inner wall of the labia and a foreign body sensation to the wearer. There is. On the other hand, if it is set to a value greater than 95/5, menstrual blood captured by the labia following layer will be difficult to transfer to the body fluid storage layer.
- the apparent thickness of the absorber is preferably 2 to
- the apparent thickness of the absorbent body before being folded is , Preferably from 1: L 0 mm.
- an apparent density of the body fluid storage layer which constitutes the absorbent body is higher 0. 0 2 g / cm 3 or more than the apparent density of the labial following layer, the apparent density of the body fluid storage layer is 0. 0 7 g / cm 3 or more Preferably, it is set.
- the difference in apparent density between the labia following layer and the body fluid storage layer is less than 0.02 g / cm 3 , the flow of menstrual blood due to the so-called capillary phenomenon may be reduced.
- the difference in apparent density between the labia following layer and the body fluid storage layer is preferably zero. 0 2 to 0. In the range of 2 g / cm 3. It is preferable that the apparent density of the body fluid storage layer is 0. 0 7 g / cm 3 or more, further, 0, 0 7-0.
- the body fluid storage layer is less than 0. 0 1 g / cm 3, ' once menstrual blood absorbed storage is by deformation such as compression May cause release.
- the apparent density in the body fluid storage layer is greater than 0.3 g / cm 3 , the porosity of the body fluid storage layer will be too small, and it will be difficult to absorb menstrual blood. May increase.
- integral molding includes, for example, embossing.However, in order to prevent shape collapse during use and to prevent delamination between the labia following layer and the body fluid storage layer even in a wet state, it is preferable to use an absorbent area. The emboss ratio with respect to is in the range of 0.6 to 30%. In order to smoothly transfer menstrual blood absorbed by the labia follow-up layer to the body fluid storage layer, it is preferable that the labia follow-up layer and the body fluid storage layer be integrated without delamination during wearing. Is preferably arranged uniformly with respect to the absorber.
- the labia following layer is composed of a first fiber aggregate
- the bodily fluid storage layer is composed of a second fiber aggregate
- the first fiber aggregate is composed of a first fiber
- the labia follow-up layer and / or the bodily fluid storage layer may be configured to include a part of the fiber aggregate.
- the fiber length of the fiber that mainly forms the labia following layer can be characterized in that the fiber length is longer than the fiber length that mainly forms the body fluid storage layer.
- the labia follow-up layer is made by laminating a fineness of 1.1 to 4.4 dt X and a fiber length of 20 to 51 mm with a mixing ratio of 60 to 90% rayon and natural cotton at a mixing ratio of 40 to 10%.
- the bodily fluid storage layer is a sheet obtained by embossing a fiber in which pulp selected from a fiber length range of l to 10 mm is laminated at a mixing ratio of 80 to 99% and a particulate polymer absorbent at a mixing ratio of 20 to 1%. It is composed of those that have been converted.
- the labia following layer and the body fluid storage layer have a total basis weight of 50 to 450
- An absorber having a total apparent thickness of 2 to 20 mm can be constructed.
- the relative composition ratio of the apparent thickness between the labia following layer and the body fluid storage layer is preferably in the range of 60/40 to 95Z5.
- the apparent thickness of the interlabial follow-up layer is preferably 1.0 to 14 mm, and the apparent thickness of the body fluid storage layer is preferably in the range of 0.6 to 6 mm.
- “subject” means that when the same substance shows 60% or more of the weight of each layer, the substance can be called the predominant substance.
- the compression stiffness (LC) is one of the indicators that the labia following layer is easier to compress and deform than the body fluid storage layer. Specific examples are described below.
- Labial following layer is fineness 3.
- 3 dt X rayon 8 5% of fiber length 5 1 mm, is composed of natural cock tons 1 5% mixing ratio, laminated basis weight 1 8 0 g / m 2
- the apparent thickness was set to 2.5 mm.
- the body fluid storage layer was composed of 100% pulp having a fiber length of 2 to 5 mm, and was laminated to a basis weight of 80 g / m 2 , and the apparent thickness was set to 1.0 mm.
- a test piece (5 cm ⁇ 5 cm) of each layer was placed on a test table, and the speed of a copper plate having a circular flat surface with a compression area of 2 cm 2 was set to 50 mm / sec and compressed to a maximum load of 4900 Pa.
- the compression stiffness and (LC) represent the linearity of the compression characteristics (the relationship between the strain of the sample and the stress applied to the sample), and the higher the value, the higher the stiffness against compression.
- the labia follow-up layer in the test piece of each layer was 0.32 Pa, and the body fluid storage layer It was 41 Pa.
- the wet state shown here refers to the state up to the maximum absorption of each layer.
- the absorbent material of the interlabial pad is compressed with low resistance (low resistance) when body pressure is applied, so that the wearer does not feel a foreign body and recovers thickness when body pressure is released. To prevent the interlabial pad from falling off.
- the absorbent material of the interlabial pad be compressed with low resistance and exhibit a high thickness recovery rate, and it is more preferable that the labia-following layer facing the inner wall of the labia has the above function.
- the slit processing may be a processing that extends in a dashed shape in the short direction and is arranged in a staggered manner in the long direction, and includes a slit processing performed by a slit blade having a length of 10 mm.
- the fibers used may be made non-oriented, whereby the rigidity due to the orientation of the fibers themselves may be reduced, and the flexibility of the absorber may be increased.
- the value is preferably 40 or less.
- the covering material includes a front side sheet and a back side sheet, wherein the front side sheet is water permeable, and the back side sheet is water permeable or impermeable. Being water-based, the covering material includes the absorber between the front side sheet and the back side sheet, and is folded so that the back side sheets face each other along the folding axis.
- the long convex area forming the top toward the wearer's body with the face exposed, and the extended area extending in the lateral direction from both sides of the long convex area
- the body fluid storage layer is disposed on the back side sheet side of the labia follower layer, and a part of the body fluid storage layer is disposed in the long convex region.
- An interlabial pad as described.
- both sides of the body fluid storage layer where menstrual blood etc. are stored are less likely to come into contact with the pad or clothes, etc. It is possible to prevent menstrual blood from leaking into the combined pad or clothes from the direction. Further, since the labia follow-up layer extends to the extended region, the area of adhesion between the labia follow-up layer and the inner wall of the labia as well as the vulva increases, so that leakage of menstrual blood can be further prevented. It is sufficient that at least a part of the body fluid storage layer is arranged in the long convex region. It is preferable not to dispose in the region (top) substantially along the center line extending in the longitudinal direction.
- the density of the body fluid storage layer is set to be high, if the body fluid storage layer is placed at a position facing the vestibular floor, the wearer's stiffness of the body fluid storage layer will be transmitted to the wearer by actions such as sitting on a chair, This is because it is thought that it will be easier to give a feeling.
- a mini sheet piece may be attached to the area corresponding to the base of the triangle. It is preferable that a finger of a wearer can be inserted into the thus formed triangular opening. Labia when worn between the labia By placing the finger in the vicinity of the longitudinal center line on the clothing side of the interpad, the labium can be pushed open due to the rigidity of the finger. It is possible to prevent a gap from being generated between the interlabial pad and the body side.
- a finger inlet for securing a finger in the longitudinal direction of the back side sheet may be formed.
- the interlabial pad with a mini-sheet piece with a finger insertion port on the clothes side is a concave part with a highly sensitive fingertip by inserting the finger so that the fingerprint side of the finger touches the back side sheet Since the position of the vaginal opening can be sensed, the interlabial pad can be worn in a reliable position.
- the shape of the interlabial absorption layer is not particularly limited as long as it can be easily sandwiched between the labia of a woman, as long as it is oval, gourd-shaped, ⁇ -shaped, etc. There is no particular limitation.
- FIG. 1 is a perspective view including a cross section of an interlabial pad according to a first embodiment of the present invention.
- FIG. 2 is a perspective view including a cross section of an interlabial pad according to a second embodiment of the present invention.
- FIG. 3 is a cross-sectional view showing a wearing state of the interlabial pad of the second embodiment of the present invention.
- FIG. 4 is a sectional view of an interlabial pad according to a third embodiment of the present invention.
- FIG. 5 is a sectional view of an interlabial pad according to a fourth embodiment of the present invention.
- FIG. 6 is a sectional view of an interlabial pad according to a fifth embodiment of the present invention.
- FIG. 7 is a sectional view of an interlabial pad according to a sixth embodiment of the present invention.
- FIG. 8 is a cross-sectional view of an interlabial pad according to a seventh embodiment of the present invention.
- FIG. 9 is a cross-sectional view illustrating a mounted state of the interlabial pad of the present invention.
- FIG. 10 is a cross-sectional view showing the state of wearing the interlabial pad of the present invention.
- FIG. 11 is a cross-sectional view showing a worn state of the interlabial pad of the present invention.
- FIG. 12 is a cross-sectional view showing a worn state of the interlabial pad of the present invention.
- FIG. 13 is a cross-sectional view showing a state of wearing the interlabial pad of the present invention.
- FIG. 14 is a cross-sectional view illustrating a state of wearing the interlabial pad of the present invention.
- FIG. 15 is a cross-sectional view showing a worn state of the interlabial pad according to the first embodiment of the present invention.
- FIG. 16 is a cross-sectional view illustrating a state in which the comparative example is mounted.
- FIG. 17 is a developed view of the interlabial pad of the present invention.
- FIG. 18 is a view showing an absorbent body of the interlabial pad of the present invention.
- FIG. 19 is a developed view of the absorbent body of the interlabial pad of the present invention.
- FIG. 20 is a view showing a state in which the assembly of the interlabial pad of the present invention is bent and a mini-site piece is attached.
- the interlabial pad of the present invention is an interlabial pad made of an absorbent for absorbing bodily fluids and a covering material covering the absorbent in a shape that can be easily sandwiched between labia of a woman.
- the absorbent body is composed of a labia following layer located on the body side, and a body fluid storage layer located below (clothing side) and covered by the labia following layer. When worn, the labia following layer is easier to deform than the body fluid storage layer because it is more compressible than the body fluid storage layer, and the apparent density is lower than that of the body fluid storage layer.
- the labia follow-up layer which can be compressed and deformed more easily than the body fluid storage layer, is located closer to the inner wall of the labia, so that the labia bend left and right around the vertical direction and Even if the irregularities are deformed, the labia follow-up layer can be easily compressed and deformed in response to changes in the behavior of the inner labial wall, and the body fluid storage layer is covered with the labia follow-up layer.
- the rigidity of the skin can be buffered by the labia follow-up layer, so it is considered difficult to give the wearer a foreign-body sensation.
- the labia follow-up layer be more easily compressed and deformed than the body fluid storage layer even in a dry state and further in a wet state absorbing menstrual blood. It is preferable that the labia following layer is easier to deform and the like than the body fluid storage layer.
- the compression stiffness (LC) of the labia following layer is lower than that of the body fluid storage layer regardless of whether the layer is dry or wet. Even if the absorbent becomes wet during wearing, the labia follow-up layer easily follows the morphological change of the inner wall of the labia before the body fluid storage layer, so it has the flexibility to reduce the rigidity of the body fluid storage layer. It is thought that this is the case.
- the body fluid storage layer is provided with a labia follow-up layer on the side of the body (the surface facing the body, especially the covering material in contact with the labia). And convey a sense of rigidity directly to the inner wall of the labia Can be prevented. Furthermore, even when the depth between the labia changes due to individual differences and behavioral changes, the short dimension of the absorber is increased by making the labia follow-up layer larger than the body fluid storage layer, thereby creating a space due to the thickness of the body fluid storage layer. Since it does not wake up, the labia follow-up layer can maintain close contact with the inner wall of the labia as well as the vulva, thereby preventing menstrual leakage.
- a high-density fluid flowing down the inner wall of the labia is installed because a low-density labia-following layer and a high-density body fluid storage layer are installed underneath (clothing side) near the inner wall of the labia.
- Menstrual blood can be captured by the labia follow-up layer even for a different excretion route, and can continue to be transferred to the bodily fluid storage layer due to the capillary phenomenon between the labia follow-up layer and the body fluid storage layer. Even if it is, it can be captured by the labia following layer.
- the absorber including the labia following layer and the bodily fluid storage layer may temporarily cause saturation of absorption in the labia following layer due to menstrual absorption, but the absorbed menstrual blood may be absorbed into the bodily fluid storage layer. Since it is transported, the maximum absorption of the absorber is utilized, and leakage can be prevented even with a large amount of menstrual blood. .
- menstrual blood accumulates from the body fluid storage layer on the clothing side of the absorber, it is difficult for menstrual blood to stay on the surface of the interlabial pad that is in contact with the body, such as the labia, and fluidity caused by menstrual blood retention Therefore, the contact area between the inner wall of the labia and the pad surface between the labia can be maintained. Therefore, it is possible to prevent the interlabial pad from falling off.
- the body fluid storage layer is as easy to compress as the labia follower layer, and if it is more easily compressed and easily deformed, if the space between the fibers accompanying the overall deformation is easily deformed, Menstrual blood once stored in the space is easily released again.
- the structure of the absorber may be any as long as the body side of the body fluid storage layer is covered by the labia following layer, that is, the easily compressible deformable labia following layer faces the inner wall of the labia and is easily deformed.
- the clothing side of the body fluid storage layer does not need to be covered with the labia follower layer, as it is not necessary to give the wearer a foreign-body sensation.
- FIG. 1 is a perspective view including a cross section of the interlabial pad 10 of the present embodiment.
- the absorber in which the body side of the body fluid storage layer 12 is covered with the labia following layer 14 is covered with a covering material 16 which is a liquid permeable material.
- the upper side in the figure is the body side 22a
- the lower side in the figure is the clothing side 22b
- the covering material 16 is the covering material overwrap at the lower part in the figure.
- the covering material overlap portion 18 may be a tab for taking out the attached interlabial pad 10.
- Lines 52 and 54 intersecting at the upper side in the figure indicate the planar positional relationship of the interlabial pad 10. That is, along the length direction of the interlabial pad 10, the inner side in FIG. 1 is set to 52 b and the near side is set to 52 mm. Further, the direction toward the left side in FIG. 1 along the width direction of the interlabial pad 10 is set to 54 r, and the direction toward the right side is set to 54 1.
- the interlabial pad 10 has a predetermined length, the longitudinal direction is the longitudinal direction, and the width direction is the lateral direction.
- the labia follow-up layer 14 can be easily compressed and deformed, adheres closely to the morphological change of the inner wall of the labia, and at the same time relieves the rigidity of the body fluid storage layer 12. Further, since the body fluid can be captured by the labia following layer 14 and the body fluid can be continuously transferred by capillary action with the body fluid storage layer 12, the body fluid can be prevented from leaking from the labia following layer 14 near the labia. Can be done. In addition, when the interlabial pad 10 is worn, the garment-side covering material 16 is folded and attached along the longitudinal center line so as to face each other, thereby facing the left and right labia.
- the body side of the left and right labia listening pads with the longitudinal center line as the target axis can easily follow the change in the behavior of the left and right labia due to the change in the wearer's movement, so that It is possible to make it difficult to generate a gap between the interlabial pad 10 and the side of the body.
- an absorbent body in which the body side and the clothes side of the body fluid storage layer 12 are also covered with the labia follow-up layer 14 may be used. In this way, the labia following layer 14 on the body side and the labia following layer 14 on the clothes side share roles.
- the labia following layer 14 on the body side easily compresses and deforms following changes in the behavior of the inner wall of the labia, and the labia following layer 14 on the clothes side cushions the rigidity of the body fluid storage layer 12 so to speak. Since it acts as a layer, it not only makes it more difficult for the wearer to feel a foreign body, but also makes it harder to apply external pressure to the body fluid storage layer 12 where menstrual blood is stored. It is considered possible to prevent the menstrual blood from returning.
- the absorber composed of the labia follow-up layer 14 and the body fluid storage layer 12 shown here means, for example, that the density gradually increases from the body side 22 a to the clothes side 22 b. It is desirable that the three parties cannot clearly judge that it has at least a two-layer structure.
- the structure of the absorber which is considered substantially as a one-layer structure, is restricted in the degree of freedom of the body side 22 a and the clothing side 22 b of the absorber for the change in behavior. This is because it will be difficult to achieve a balance between the ability to follow the labia in 22a and the storage of menstrual blood in the clothes 22b.
- the at least two-layer structure means that the absorber may have three or more layers.However, the ability of the absorber to follow the labia on the body side 22a and the menstrual blood on the clothes side 22b It is desirable to lay it in a position that does not hinder the role sharing with storage, such as the labia following layer 14 and body fluid For example, a third layer is interposed between the storage layer 12 and the like.
- the apparent density of the absorber is the value of the absorber at the position where the designer intends to make contact with the vaginal opening, and is calculated from the volume and weight of the absorber measured under the following conditions It is.
- the position that the designer intended to contact the vaginal opening is that most designers are long in the short direction and are designed to contact the vaginal opening on the axial center line, but not in the long direction. It is carefully described because it is not always designed to contact the vaginal opening on the short axis.
- the absorber at the position in contact with the vaginal opening in the longitudinal direction was cut in the short direction, and the cross-sectional area of the absorber at 5 mm each (total 10 mm width) from the center line of the long axis to the left and right was measured.
- the measurement direction of the cross-sectional area of the absorber is not limited as long as it can be measured with no load, but in this case, the cross-sectional area was measured with a digital microscope (Keyence VH-6200).
- the absorber is not planar, for example, because the absorber is bent and the entire surface is wavy due to embossing, etc., the measurement was performed by expanding the absorber so that it would not affect the cross-sectional area. Even when the absorber was composed of two layers, the cross-sectional area of each layer was measured as it was.
- the volume was determined by multiplying the cross-sectional area measured under no load (step 1) by the area of 1 Omm ⁇ 10 mm.
- each layer of the absorber is composed of a plurality of types, for example, even when the absorber is formed by mixing fibrous rayon and particulate polymer absorber.
- the measuring method it is possible to determine the “apparent density” in each layer. For a sample that does not have a size of 5 mm each (total width of 10 mm) from the longitudinal axis center line in step (1) to the left and right, measure the cross-sectional area within the range from the possible longitudinal axis center line. According to the range, the sample is subjected to the force shown in the step (1), and the weight is measured. Since the apparent density does not change depending on the size of the sample cut, the size of the sample force may be changed according to the size of the sample in a timely manner.
- the interlabial pad 10 includes a body fluid storage layer 12 disposed at the innermost position and a labia following layer 14 surrounding the body fluid storage layer 12. And a covering material 16 that covers and covers these.
- the interlabial pad 10 is in the shape of a column having a slightly rounded rectangular cross section and a rectangular cross section. However, at both ends, the cross sectional area is small, so that a quadrangular pyramid shape can be obtained.
- a covering material overlap portion 18 is formed on 22 b, which is closed.From here, the body fluid storage layer 12 and the labia follow-up layer are closed. 14 and can be coated.
- the covering material overwrap portion 18 can be used as a tab for taking out the interlabial pad 10.
- On both sides of the covering material 16 there is a body side sandwiched between the labia and in contact with the inner wall of the labia (not shown), but the top of the interlabial pad 10 also comes into contact with the body.
- the surface of the covering material 16 as described above is mainly referred to as the body side surface of the covering material 16.
- the absorber including the body fluid storage layer 12 and the labia following layer 14
- the body fluid storage layer 12 extends vertically vertically in its cross section, and both sides and the top contact the labia following layer 14.
- contact may mean directly or indirectly close to each other, and generally means a state having a mechanical or mechanical influence.
- the labia following layer 14 can flexibly follow the morphological change of the inner wall of the labia and the like, and change its own shape. Menstrual blood can pass through the covering material 16 of the interlabial pad 10 and reach the body fluid storage layer 12 via the labia following layer 14. Because it can flexibly follow the morphological change of the inner wall of the labia and change its own shape, it is difficult for space to be created between the inner wall of the labia and the leakage of menstrual blood caused by the space effectively. 0 that can be prevented
- FIG. 15 shows that the interlabial pad 10 of FIG. 1 is worn between the labia 56.
- the inner wall of the labia is deformed by the posture of the wearer.
- the labia follow-up layer 14 is gently curved like a part 15a or a part 15b according to the shape of the inner wall of the labia.
- the labia follow-up layer 14 protrudes rightward as viewed in the figure, as in the portion 15c.
- the labia follow-up layer 14 and the covering material 16 flexibly cope with these deformations and are in close contact with the inner wall of the labia.
- Fig. 16 as a comparative example, members 904 having high density and high rigidity are arranged on both sides, and members 902 having low density and low rigidity are arranged in the center.
- the attached state of the interlabial pad 900 is shown.
- the labium is deformed as in Fig. 15, but the high-density and rigid member 904 does not follow this deformation well, and is placed above the interlabial pad 900 (body side).
- a gap 9 15 a is created.
- a gap 915b is also formed on the left side of the figure of the interlabial pad 900.
- the interlabial pad 900 there is a small area in contact with a member 904 having a high density and a high rigidity of the inner wall of the labia, and the member 904 has a small area. Because it does not deform, it creates a gap 915c around it.
- FIG. 2 shows a second embodiment of the present invention.
- the vertical lines in the figure indicate the positional relationship between the body side 22a and the clothes side 22b of the interlabial pad 40 as described above, and the lines 52, 54 crossing the upper side in the figure are:
- the interlabial pad 40 has a predetermined length, a longitudinal direction is a longitudinal direction, and a width direction is a lateral direction.
- the interlabial pad 40 is two-dimensionally spread such that the bodily fluid storage layer 42 substantially follows the plane formed by the cut lines 52 and 54, and the bodily fluid storage layer 4 2 spreads two-dimensionally on the clothes side in contact with the body fluid storage layer 42 on the body side.
- the labia follow-up layer 44 is wider than the body fluid storage layer 42, spaces 51 are formed on both sides of the body fluid storage layer 42.
- the absorber composed of the bodily fluid storage layer 42 and the labia follow-up layer 44 is provided on the back side sheet 46 b, which is a component of the clothes side 22 b of the covering material 46 (similarly, in two dimensions. Spread).
- the right and left side edges 49 of the back sheet 4 6 b are attached to the body side 2 2 of the covering material 4 6.
- the front side sheet 46a which is a component of a, is joined at the side end 49 of the front side sheet 46a, and covers the absorbent body (including the body fluid storage layer 42 and the labia following layer 44). ing.
- the front-side sheet 46a is in contact with the inner wall of the labia on the side surface 47 of the body.
- the back side sheet 46b has a garment side on the lower side (clothes side 22b).
- the body fluid storage layer 42 is in contact with the labia following layer 44 only on the surface on the body side.
- FIG. 3 shows a state in which the interlabial pad 40 of the second embodiment of FIG.
- the interlabial pad 40 in FIG. 2 is folded in two along a folding axis substantially along the longitudinal direction 52 so that the back side sheets 46 b of the covering material 46 overlap each other, It is sandwiched between the left and right labia 56. Therefore, the body side surface of the front sheet 46a of the covering material 46 comes into contact with the inner wall surface of the labia and the inner wall of the labia.
- the interlabial pad 40 is mounted between the labia with substantially the same shape as that of FIG. Therefore, most of menstrual blood is absorbed into the body fluid storage layer 42 via the side of the body, and the back sheet 46b may be non-reachable.
- the space 5 ′ 1 in FIG. 2 is slightly reduced in size by bending, but remains as a space even in the bent state.
- FIG. 4 is a sectional view showing an interlabial pad 60 according to a third embodiment of the present invention.
- a body fluid storage layer 62 extending almost right and left in the center and an absorber composed of a labia follower layer 64 surrounding the body fluid storage layer 62 are attached to the surface side sheet 46a of the coating material 46 and the coating material 46.
- the back side sheet 46b is wrapped and covered.
- the front side sheet 46 and the back side sheet 46 b are joined at their side ends 49.
- this interlabial pad 60 therefore, It may be worn between the labia as shown in the figure, or may be folded in two as shown in Figure 3.
- the interlabial pad 60 is set up, and the left and right portions of the labia following layer 64 are arranged on the body side 22a and the clothing side 22b, respectively.
- the upper part 6 4a and the lower part 6 4b of the labia following layer 64 are deformed according to the shapes of the inner walls of the left and right labia, respectively.
- the body is bent with the body side surface 47 facing outward, and the surface is brought into contact with the inner wall of the labia and changes its form.
- FIG. 5 is a sectional view showing an interlabial pad 70 according to a fourth embodiment of the present invention.
- a diffusion layer 78 that also spreads is arranged on the body fluid storage layer 72 that spreads right and left almost in the center.
- a labia following layer 74 that spreads similarly is disposed thereon.
- the width of the bodily fluid storage layer is narrow, so that the gap 51 is open.
- the absorber composed of the body fluid storage layer 72, the diffusion layer 78, and the labia follow-up layer 74 is a surface side sheet 46a of the coating material 46 bonded at each side end 49 and the coating material.
- the interlabial pad 70 may be folded in two as shown in FIG. 3 and attached between the labia. At this time, the body is bent with the side surface 47 facing outward, and the surface comes into contact with the inner wall or the like of the labia and changes its form. Menstrual blood entering from the side of the body 4 7 is first absorbed by the labia following layer 7 4, but is diffused appropriately by the diffusion layer 7 8 and absorbed by the body fluid storage layer 7 2 under it over a wide area. . It is considered that this makes the absorption of the body fluid storage layer 72 uniform and improves the absorption capacity such as the absorption rate.
- FIG. 6 shows an interlabial pad 40a of another fifth embodiment in which the interlabial pad 40 of FIG. Is shown.
- the interlabial pad 40a has a cross section in the shape of a triangular pointed hat with a brim, and each region has the following features.
- a long convex area 84 which is mainly a part sandwiched between labia.
- an extended area 82 extending from both sides of the long convex area in the lateral direction (left-right direction), and it is normal that the extended area is not sandwiched between labia. Is the area that comes into contact with
- the constituent members are the same as those in FIG.
- the body fluid storage layer 42 is arranged on the surface of the body side 22 a of the back sheet 46 b, and the labia following layer is placed thereon.
- 4 4 are arranged.
- a front side sheet 46 a is disposed thereon, and a covering material 46 comprising the front side sheet 46 a and the back side sheet 46 b joined to the entire absorber at these side ends 49.
- the gap 51 seen in FIG. 2 is described below the bottom part 44 c of the labia following layer 44 and is folded back in a brim shape, so that the gap 51 is almost eliminated.
- the absorbed menstrual blood is absorbed through the front side sheet 46a, so the menstrual blood passing through the long convex region 84 between the front side sheet 46a sandwiched between the labia is the front side sheet. It is absorbed by the top part 44a and the side part 44b of the labia following layer 44 in contact with the clothing side 22b of the 46a.
- the bottom part 4 4c of the labia following layer 4 4 located in the extension area 82 absorbs menstrual blood that moves along the inner wall of the labia and goes out of the labia or moves from the side part 4 4b, It is estimated that the amount is not so large.
- Menstrual blood once absorbed in the top part 4 4 a ⁇ of the labia following layer 44 is further transferred to the body fluid storage layer 42 by capillary force or the like.
- the body fluid storage layer 42 is arranged in this way, the extension area Folding the interlabial pad to form 82 is easier because the folds are not thick.
- FIG. 7 shows an interlabial pad 40b which is a sixth embodiment different from the fifth embodiment of FIG. 6 in that the body fluid storage layer 42 is divided into two.
- This embodiment has the same configuration except that a gap 41 is formed at a position indicated by 42 a in FIG. 6, and therefore, a duplicate description will be omitted.
- the bodily fluid storage layer 42 is divided into two parts and disposed on the surface of the clothing side 22 b of the labia following layer 44. More specifically, the top part 4 4 of the labia following layer 44 is arranged.
- the body fluid storage layer 42 is not arranged on the clothing side 22b of a but divided on the clothing side 22b of both sides 44b.
- FIG. 8 shows an interlabial pad 40c according to a seventh embodiment in which a mini-sheet piece 48 is added to the fifth embodiment of FIG. Since it is the same as the fifth embodiment except that the mi-sheet piece 48 is attached, duplicate description is omitted.
- the mie sheet piece 48 is joined to the left and right side edges 49 together with the back sheet 46 b and Z of the covering material 46 or the side edges 49 of the front sheet 46 a of the covering material 46. ing.
- the extension region 82 it may or may not be joined to the back side sheet 46b.
- the triangular gap 53 formed under the long convex region 84 can be a finger insertion hole for mounting the interlabial pad 40c.
- FIGS. 9 to 14 show a state in which various interlabial pads having a long convex region 84 having a bodily fluid storage layer 42 of various dimensions and a labia following layer 44 are mounted. In these figures, other members such as covering materials are not shown for clarity.
- Fig. 9 shows the condition when a wearer with an average depth of labia wears an interlabial pad in which the latitudinal length of the labia following layer 44d is longer than that of the body fluid storage layer 42d. Represents. Since the labia follow-up layer 44d is longer than the total length of the inner wall of the labia 56 in the short direction, the short end of the labia follow-up layer has a protruding shape. '
- Figure 10 shows that a wearer with a shallow labia has an interlabial pad in which the lateral length of the body fluid storage layer 42 e is slightly shorter than that of the labia following layer 44 e as shown in Figure 6. It is a figure showing the state when wearing.
- Figure 11 shows the condition when a wearer with a slightly deep labia wears an interlabial pad in which the latitudinal length of the labia following layer 44f is longer than the body fluid storage layer 42f. I have. Because the latitudinal length of the labyrinth following layer 4 4 f is shorter than the total length of the labyrinth 5 6 in the latitudinal direction, the inner wall of the labia is not in full contact with the labia following layer 4 4 f. Absent.
- FIGS. 12 to 14 show a state in which an interlabial pad in which the lateral length of the body fluid storage layer 42 is longer than that of the labia following layer 44 is worn.
- Figure 12 shows that a wearer with an average depth of labia has a particularly short latitudinal length of 44 g of the labia following layer, and a shorter than that of the body fluid storage layer of 42 g.
- FIG. 4 is a diagram showing a state when a short interlabial pad is worn. Since the labia following layer 44 g is particularly short, the inner wall of the labia has a portion that is not in contact with the labia following layer 44 g.
- the body fluid storage layer 42 g has a normal length, so it slightly protrudes between the labia, but as described above, a gap 43 g at the part where the inner wall of the labia does not contact the labia follow-up layer 44 g Has occurred.
- Fig. 13 shows that the wearer with a slightly shallow labia has a particularly long transverse direction length of the body fluid storage layer 42h, the shorter length of the labia following layer 44h, and the total length of the inner wall of the labia.
- FIG. 4 is a diagram showing a state when an interlabial pad longer than the length is worn. The inner wall of the labia is in contact with the labia following layer 44 h, but immediately outside it has a gap 43 h between it and the body fluid storage layer 42 h in the extension area.
- Fig. 14 shows the condition when a wearer with a slightly deep labia wears an interlabial pad in which the latitudinal length of the labia following layer 44 i is shorter than the body fluid storage layer 42 i. I have. Since the labia following layer 4 4 i is particularly short, there is a portion on the inner wall of the labia that does not contact the labia following layer 4 4 i, and a gap 4 3 i is formed between the labia following layer 4 2 i and the body fluid storage layer 4 2 i .
- FIGS. 17 to 20 show how the finished product has an interlabial pad 100 having a cross-sectional view as shown in FIG.
- FIG. 17 shows a state in which the labia following layer 74 and the bodily fluid storage layer 72 are attached to each other to form an absorber.
- the labia following layer 74, the body fluid storage layer 72, and the diffusion layer 78 have slits 77a that extend diagonally at the tip, a vertical slit 77c that extends to the center, and a vertical slit that transitions to the extension area.
- An extending slit 77 s and a slit 77 V extending in the left-right direction or short-side direction are formed.
- Some dimples 71a are formed by embossing.
- the body fluid storage layer 72 has a number of dimples 7 1 b formed by embossing.
- the diffusion layer 78 can be disposed between the labia following layer 74 and the body fluid storage layer 72 as an option. That is, examples of the interlabial pad include those in which the diffusion layer 78 is interposed between the labia follow-up layer 74 and the body fluid storage layer 72 and those in which the diffusion layer 78 is not.
- the diffusion layer 78 is more preferable because menstrual blood spreads and is easily absorbed in the body fluid storage layer 72.
- the diffusion layer 78 has dimples 71c, but the base material is mesh-like, Hash holes 7 9 are widely distributed. These components are assembled into an absorber 80 shown in FIG.
- FIG. 19 shows a state in which an interlabial pad or an intermediate thereof is formed including the front side sheet 46 a of the covering material 46 and the back side sheet 46 b of the covering material 46.
- the interlabial pad or an intermediate thereof is a surface side, which is formed by laminating a layer 46a, a labia following layer 74, a body fluid storage layer 72, and a back side sheet 46b in this order, Alternatively, the front sheet 46a, the labia follower layer 74, the diffusion layer 78, the body fluid storage layer 72, and the back sheet 46b are laminated in this order.
- the labia follow-up layer 74, the body fluid storage layer 72, and the diffusion layer 78 are the same as those described above, and will not be described here.
- the front side sheet 46a and the back side sheet 46b which are components of the covering material 46, and the material and the like of other parts will be described later. These components are assembled together, and the periphery can be joined by hot melt or the like to form an interlabial pad or an intermediate thereof.
- FIG. 2OA to FIG. 20D show how the completed interlabial pad 100 is formed by subjecting the formed interlabial pad or its intermediate body to additional processing such as bending.
- the interlabial pad or its intermediate 90 assembled in Figure 19 has a folding axis 52 (although 52 f is forward, 52 b is backward) along the longitudinal axis. It is also drawn.
- the axis that intersects this axis is the axis that extends in the short direction of the interlabial pad or its intermediate 90, with the direction toward the right being referred to as 5 4r and the direction toward the left being referred to as 5 41. it can.
- the interlabial pad or its intermediate body 90 is joined at a side end 49 corresponding to a peripheral edge.
- the interlabial pad or its intermediate body 90 is bent downward.
- the upper surface of the interlabial pad or its intermediate 90 is the body side 22a.
- Figure 20B shows the interlabial pad or its middle
- the body 90 is shown to be bent so as to form a chevron along the bending axis 52.
- FIG. 20C shows the folded state to form the extension region 82.
- a long convex region 84 as shown in FIG. 6 is formed in the vicinity of the top portion maintaining the chevron shape.
- the mulipad piece 48 is further attached to the bottom surface of the extension region 82 of the interlabial pad or the intermediate 90 spread in this manner.
- the chevron shape of the long convex region 84 can be stably maintained.
- Fig. 2 In the finished product of OD 100, the non-joined part of the mini-sheet piece 48 (where it is not joined to the interlabial pad or its intermediate body 90) is woven with a line along the longitudinal axis to extend it. This shows a state where the folding back of the area 82 is restored.
- the finished product of the interlabial pad 100 can be made compact, which is preferable for individual or collective packaging.
- the “absorbent body” has a composition ratio of an apparent thickness of the labia follow-up layer and the body fluid storage layer of preferably 60/40 to 95/5.
- the labia follow-up layer 44 and the bodily fluid storage layer 42 overlap, and the thickness of the interlabial pad 40 when fitted between the labia is preferably 2 to 20 mm. It is more preferably in the range of 4 to 10 mm. In particular, if the thickness is less than 2 mm, the thickness becomes even smaller (thinner) when menstrual blood is absorbed, the repulsion generated by the pinching force by the labia weakens, and the interlabial pad falls off between the labia.
- the apparent thickness constituting the absorber is preferably
- the labia follow-up layer and the Z body fluid storage layer are more preferably set at 60/40 to 95/5.
- composition ratio of the apparent thickness is set smaller than 60/40, there is a possibility that the wearer may have a foreign body sensation due to a decrease in the ability to follow changes in the behavior of the inner wall of the labia and a difficulty in buffering the rigidity of the body fluid storage layer. .
- it is set to a value greater than 95/5, menstrual blood captured by the labia follow-up layer is considered to be difficult to transfer to the body fluid storage layer, and the labia follow-up layer may become saturated before the body fluid storage layer. It is possible that menstrual blood leakage may be induced without utilizing the maximum absorption as an absorber.
- the apparent thickness of the absorber is preferably in the range of 2 to 2 Omm.
- the apparent thickness of the absorbent body before being folded is as follows. It is preferably in the range of 1 to 10 mm.
- the apparent thickness can be measured with no load in a state where the cross-sectional area shown above is measured, that is, in a state where the absorbent body is cut in the short side direction at the position in contact with the vaginal opening in the longitudinal direction.
- the apparent density of the body fluid storage layer which constitutes the absorbent body is higher 0. 02 g / cm 3 or more than the apparent density of the labial following layer, the apparent density 0.0 7. g / cm 3 or more.
- the density difference between the labial following layer and the body fluid storage layer is less than 0. 0 2 gZ cm 3 since the density gradient of the labial following layer and the body fluid storage layer becomes gentle, relative due to surface tension There is a possibility that the difference in the typical capillary force will decrease, and the flow of menstrual blood due to the so-called capillary phenomenon will decrease.
- the density difference between the labia following layer and the body fluid storage layer is preferably in the range from 0.02 to 0.2 gZ cm 3 . Further, the apparent density of the body fluid storage layer is rather preferably at least 0.
- the apparent density of the body fluid storage layer is less than 0.07 gZ cm 3 , the porosity of the body fluid storage layer is high, so it is easily compressed, and menstrual blood once absorbed and stored is released by deformation such as compression. There is a fear that it will be.
- the apparent density in the body fluid storage layer is greater than 0.3 gZ cm 3 , the porosity of the body fluid storage layer will be too small, making it difficult to absorb menstrual blood, and may increase the rigidity .
- the material used for the absorber coated with the coating material may be the same or different in the labia following layer and the body fluid storage layer. It is desirable that the labia follow-up layer can be more easily compressed and deformed than the body fluid storage layer, and the material used is appropriately selected according to such characteristics.
- the material constituting the labia following layer and / or the body fluid storage layer can be used without particular distinction, and pulp, chemical pulp, rayon, acetate, natural cotton, and synthetic fibers can be used alone or in combination.
- the sheet material may be used after being processed into a powder. Powdered or granulated materials are used for the labia-following layer as a body fluid storage layer. Since it is easy to follow changes, it is difficult for the wearer to feel a foreign object.
- a cellulose foam, a continuous foam of a synthetic resin, or the like can be used as the absorber.
- Use foam for labia follow-up layer By increasing the porosity, the rigidity of the body fluid storage layer can be alleviated by the labia follow-up layer, and it is possible to deform and follow the morphological change of the inner wall of the labia with little resistance, so that foreign substances can It is difficult to give a feeling.
- a material used for the body fluid storage layer to enhance the body storage power of the body fluid storage layer a particulate polymer absorbent or a fibrous polymer absorbent may be mixed.
- a chemical pulp, acetate, or synthetic fiber that has been crosslinked and crimped with a crosslinking agent may be mixed. .
- the method of molding these materials into an absorbent body is preferably such that the apparent thickness constituting the absorbent body is at least 60/40, the labia following layer and the bodily fluid storage layer. Is preferably not less than 0.02 g / cm 3 .
- the density of the bodily fluid storage layer is set higher, but examples thereof include sheets formed by an air laid method, a melt blown method, a span lace method, a paper making method, and the like. it can.
- embossing may be performed by passing paper between rolls that are puttered in a dot shape or a lattice shape.
- it may be integrally formed with an adhesive or embossing.
- embossing is available.However, it is possible to prevent shape collapse during use or to prevent delamination between the labia following layer and the body fluid storage layer even in a wet state.
- the embossing ratio is in the range of 0.6 to 30%.
- the labia following layer and the bodily fluid storage layer be integrated without delamination during wearing. It is preferable that the processing is uniformly arranged on the absorber.
- the labia follow-up layer and the body fluid storage layer are composed of fiber aggregates, and the fiber length of the fibers that mainly constitute the labia follow-up layer mainly constitutes the body fluid storage layer. It can be characterized by being composed of fibers longer than the fiber length of the fibers.
- the fiber length of the fiber mainly constituting the labia following layer is longer than the fiber length of the fiber mainly constituting the body fluid storage layer.
- the labia follow-up layer consists of 60-90% rayon selected from the range of fineness of 1, 1-4-dtx, fiber length of 20-51 mm, and 40% natural cotton. It can be composed of those laminated at a mixing ratio of 110 ° / 0 .
- the bodily fluid storage layer is embossed with a fiber in which pulp selected from a fiber length range of 1 to 1 Omm is laminated at a mixing ratio of 80 to 99% and a particulate polymer absorbent at a mixing ratio of 20 to 1%. In the form of a sheet.
- the labia following layer and the bodily fluid storage layer can be constituted as an absorber having a total basis weight of 50 to 450 g / m 2 and a total apparent thickness of 2 to 2 Omm.
- the relative apparent thickness between the labia following layer and the body fluid storage layer is preferably in the range of 60Z40 to 95/5.
- the apparent thickness of the interlabial follow-up layer is 1.0 to 14 mm, and the apparent thickness of the body fluid storage layer is in the range of 0.6 to 6 mm.
- substantially means that the same substance weighed about 60% or more of the weight of each layer. In that case, the substance can be called the main substance.
- the “KES compression characteristic” is an index indicating that the labia tracking layer is easier to compressively deform than the body fluid storage layer. Specific examples are described below. Labial following layer fineness 3. 3 dt X, rayon 8 5% of fiber length 5 1 mm, consists of natural co Tton in a mixing ratio of 1 5% or viewed laminated basis weight 1 8 0 gZm 2 The thickness was set to 2.5 mm, and the bodily fluid storage layer was made of 100% pulp having a fiber length of 2 to 5 mm, and was laminated to a basis weight of 80 g / m 2 to set the apparent thickness to 1.0 Omm.
- each test piece (5 c mX 5 cm) in the test stand, in copper plate with a circular plane of compression area 2 cm 2, compressed at maximum load 49 00 P a or, copperplate speed is a 5 OmmZ sec .
- the compression stiffness (LC) expresses the linearity of the compression characteristics. The higher the value, the higher the stiffness against compression.
- the labia follow-up layer in the test piece of each layer was 0.32, and the body fluid storage layer was 0.41. As a result, even if the absorber becomes wet, the labia follow-up layer can be more easily compressed and deformed than the body fluid storage layer, so that it can follow the inner wall of the labia and maintain the rigidity of the body fluid storage layer. It can be alleviated by the following layer.
- the term “wet state” as used herein refers to a state in which each layer is less than the maximum absorption amount. '
- the body is exposed to excessive body pressure between the labia, such as when the wearer is sitting in a chair.
- the level of the internal pressure repeatedly occurs. Therefore, the absorbent material of the interlabial pad is compressed with a small resistance (low resistance) when the body pressure is applied, so that the wearer does not feel a foreign body, and when the body pressure is released, the thickness is reduced.
- the interlabial pad be prevented from falling off by restoring the pressure. That is, it is preferable that the absorbent material of the interlabial pad be compressed with low resistance and exhibit a high thickness recovery rate, and it is more preferable that the labia following layer facing the inner wall of the labia has the above function.
- the resilience indicates the resilience of the compression characteristics, and the higher the value, the higher the recovery rate against compression.
- the labia follow-up layer in the test piece of each layer was 46%, and the body fluid storage layer fc was 28%.
- the labia follow-up layer buffers the rigidity of the body fluid storage layer and does not give the wearer a foreign-body sensation, but also prevents the interlabial pad from falling off due to the high rate of thickness recovery.
- the embossed slits in the body fluid storage layer By performing the processing, a difference in rigidity is given and the bending rigidity is reduced.
- the slit processing may be one that extends in a dashed shape in the short direction and is arranged in a staggered manner in the long direction, and includes slit processing performed by a slit blade having a length of 10 mm.
- the orientation of the fibers used may be randomized, thereby reducing the rigidity due to the orientation of the fibers themselves and increasing the flexibility of the absorber.
- the absorbent there is a step of transporting the absorbent after laminating the fibers so that tension is hardly applied to the absorbent.
- the ratio of the maximum tensile strength in the longitudinal direction of the absorber obtained by embossing the fiber aggregate with the fibers laminated on each other with a flat roll The value obtained by dividing the tensile strength in the transverse direction by the maximum tensile strength in the transverse direction is 40 or less.
- a diffusion layer is provided on the body side of the body fluid storage layer at a position adjacent to the labia follow-up layer, and the diffusion layer is higher than the creme water absorption in the longitudinal direction. Can be characterized.
- the route of menstrual blood excretion is the route that stays near the vaginal opening ( ⁇ route), the route that flows back and forth (longitudinal direction) due to the wettability of mucous and mucus on the vestibular floor or the inner wall of the labia (2 route), It is roughly classified into the route that flows down the inner wall of the lip (3 route), but in the 3 route, since the excretion flow rate is fast and large, it is considered that the excretion will be in the left and right (short) direction. Since the labia of a woman is almost symmetrical and vertically long, it is preferable that the overall shape of the interlabial pad be substantially vertically long. In this case, the maximum absorption of the body fluid storage layer and the labia following layer in the left and right regions of the interlabial pad can be utilized, so that the above-mentioned menstrual outflow can be prevented.
- the material used for the diffusion layer it is desirable that the Krem water absorption in the longitudinal direction is higher than that of the labia follow-up layer, and in such a case, the material is not particularly limited.
- natural fibers include cellulose such as ground pulp and cotton.
- chemical fiber include regenerated cellulose such as rayon and fipril-ray, semi-synthetic cellulose such as acetate and triacetate, and thermoplastic hydrophobic chemical fiber which has been subjected to hydrophilic treatment.
- thermoplastic hydrophobic chemical fiber examples include a single fiber such as polyethylene, polypropylene, and polyethylene terephthalate, and a composite fiber having a core of polypropylene or polyethylene terephthalate and a sheath of polyethylene.
- sheeting materials woven or non-woven fabrics can be used.
- web forming can be performed by dry method (card method, spun-pound method, melt blown method, air laid method, etc.) or wet method. Alternatively, it may be manufactured by combining two or more. Thermal bonding, needle punching And methods such as chemical bonding, but are not particularly limited to these methods. Further, a spun lace formed in a sheet shape by a hydroentanglement method may be used. '
- the specific configuration of the diffusion layer is as follows: a 100% rayon fiber with a fineness of 1.1 to 4.4 dtx and a fiber length of 25 to 51 mm is entangled by a water stream, mesh-patterned, and It is preferable to select a spun-laced nonwoven fabric having a thickness of 0.2 to 1.0 g / m and a thickness of 0.2 to 1.0 mm.
- the Klemm water absorption in the longitudinal direction is specifically shown.
- Labial following layer fineness 3. 3 dtx, rayon 8 5% of fiber length 5 1 mm, is composed of natural cock tons in a mixing ratio of 1 5%, laminated basis weight 1 8 0 GZm 2, bulk 2.
- the sheet was formed into a sheet by embossing sheet processing so as to have a thickness of 5 mm.
- Diffusion layer fineness 1, 4 dt X is composed of rayon 1 0 0% of fiber length 4 4 mm, are laminated in basis weight 2 5 g / m 2, a thickness of 0. 2 8 mm next to a 1 mm diameter main
- This is a spun lace that is made into sheets by the water entanglement method using a mesh pattern in which the ash is arranged in a staggered pattern.
- the labia following layer and the diffusion layer were immersed in artificial menstrual blood created by UniCharm Co., Ltd., and the Krem water absorption in the longitudinal direction after 10 minutes was measured. It was 41 mm in the labia following layer and 5 Omm in the diffusion layer.
- the details of the method of evaluating the Krem water absorption and the method of preparing artificial menstrual blood will be described later.
- the material used for the diffusion layer is to cut the menstrual blood diffusion in the transverse direction by slitting it in the longitudinal direction in order to orient the menstrual blood diffusion area in the longitudinal direction.
- menstrual blood can be induced in the fiber arrangement direction, and by embossing to provide a high-density region extending in the longitudinal direction, menstrual blood can be induced in the longitudinal direction by capillary action. is there.
- directing the fiber orientation in the longitudinal direction, or embossing increases the rigidity of the diffusion layer, which is more preferable.
- a good example is a spunlace nonwoven fabric mesh-patterned by a water stream, which is subjected to a slit process in the longitudinal direction.
- mesh spunlaced nonwoven fabric reduces the distance between fibers in the area between the apertures, increasing the capillary force, and slitting not only increases the Krem water absorption in the longitudinal direction, but also increases the aperture. Can be easily deformed, so that the flexibility as a diffusion layer is also increased, and the labia follow-up layer is less likely to be deformed.
- the size of the diffusion layer is not particularly limited, the size of the diffusion layer in the longitudinal direction must be equal to or greater than the size of the body fluid storage layer in order to further utilize the maximum absorption of the body fluid storage layer in the front and rear regions. Is preferred.
- the labia follower layer has a fineness of 1.1 to 4.4 dtx, a fiber length of 20 to 51 mm, a 60 to 90% rayon selected from the range, and a natural cotton.
- the fibers are laminated at a mixing ratio of 40 to 10%, and a pulp selected from a fiber length range of 1 to 10 mm is 80 to 99 ° / 0 , and a particulate polymer absorbent is 2 the fibers are laminated from 0 to 1% mixing ratio, to the sheet by embossing, total basis weight 5 0 ⁇ 4 5 0 g / m 2 , an apparent thickness of the sum as an example absorber having 2 to 2 0 mm I will.
- the pulp fiber length is 1 to 5 mm, which is mainly used, so that the pulp may fall off during transportation, or the pulp may adhere to the embossing roll during embossing. There is a risk that productivity will deteriorate.
- the entire absorbent body on the clothing side of the body fluid storage layer may be covered with a covering material.
- the coating material is not particularly limited as long as the pulp does not fall off during transport and does not impair the flexibility of the interlabial pad as well as a barrier property to prevent the pulp from adhering to the roll.
- the materials used in the absorbers described above are preferred to further increase the water content. Specifically, a tissue set with 15 g Zm 2 is given as an example.
- the clothes side of the body fluid storage layer is covered with a tissue of 10 to 20 g / m2, and the body fluid storage on the upper surface thereof the layer, the pulp selected from a range of fiber length 1 ⁇ 1 O mm 6 0 ⁇ 1 2 0 g Roh m 2 is laminated on the diffusion layer definitive bodyside of the body fluid storage layer, fineness 1.1 to 4 A rayon span mesh lace consisting of 4 dt X and a fiber length of 25 to 51 mm is laid, and the labia follower layer on the upper surface has a fineness of 1.1 to 4.4 dt X and a fiber length of 20 to 5 1 mm rayon 6 0-9 0% selected from the range of, a natural cotton in 4 0-1 0% mixing ratio 1 5 0 ⁇ 2 5 0 g / m 2 are laminated, dot-shaped embossed pressurized Sheeting.
- interlabial pad of the present invention a form in which a water-permeable front-side sheet facing the body side and a water-permeable or non-liquid-permeable backside sheet facing the clothes side are covered with an absorbent for absorbing body fluid.
- a long convex region forming a top portion toward the body side by folding the back side sheets so as to face each other substantially along the longitudinal center line; and
- An interlabial pad comprising: an extended region extending in the lateral direction from both sides of the long convex region; and an interlabial pad comprising: the body fluid storage layer in the absorber is disposed in the long convex region.
- the body fluid storage layer of the absorber Since the body fluid storage layer of the absorber is located in the long convex region fitted between the labia, menstrual blood captured by the labia follow-up layer can be instantaneously transferred to the body fluid storage layer. Alone can prevent the outflow of menstrual blood without causing saturation. In addition, since the body fluid storage layer is not provided on both sides of the extension area, both sides of the body fluid storage layer This makes it difficult for the blood to come into contact with the pad, so that it is possible to prevent menstrual blood from flowing out to the combined pad or clothes from the left and right direction of the interlabial pad.
- the body fluid storage layer is not limited as long as a part thereof is disposed in the long convex region. It is preferable not to dispose them in a region substantially along the center line extending in the longitudinal direction. Since the density of the body fluid storage layer is set to be high, if the body fluid storage layer is placed at a position facing the vestibule floor, the rigidity of the body fluid storage layer will be transmitted to the wearer in a posture where the wearer sits on Tsubaki, etc. It is thought that it will be easier to give a feeling.
- the rigidity of the finger allows the labia to be pushed open, so that the interlabial pad can be securely extended to the vestibule floor. It can be worn, and it is possible to prevent the generation of a gap between the vestibular floor or the inner wall of the labia and the body side of the interlabial pad.
- One or more joints on both sides of the back side sheet in the garment side and the short side direction of the back side sheet in order to make the finger touch the vicinity of the center line in the clothes side of the interlabial pad.
- a finger insertion opening that can secure a finger in the longitudinal direction of the back side sheet may be formed.
- the interlabial pad with a mini-sheet piece with a finger insertion port on the clothes side inserts the finger so that the fingerprint surface of the finger touches the back side sheet. Since the position can be sensed, it is possible to wear the interlabial pad at a certain position. Therefore, since the mounting is ensured, leakage of menstrual blood can be further prevented.
- the shape of the interlabial absorption layer is not particularly limited as long as it can be sandwiched between female labia without difficulty.Especially, if it is a shape that fits the female labia region, such as elliptical, gourd-shaped, or zero-shaped Not limited.
- the water-permeable sheet placed on the body side of the interlabial pad is made of a material that is liquid-hydrophilic and does not irritate the skin.
- examples of such materials include non-woven fabrics obtained from manufacturing methods such as Menoleto Blown, -Sonbond, Point Pond, Through Air, PointBond, Needle Punch, Wet Spunlace, Foam Finolem, etc., alone or in combination. Are mentioned.
- the fibrous sheet examples include sheets made of rayon, acetate, cotton, pulp, or a synthetic resin as a component alone or a composite obtained by forming a core-sheath structure alone or mixed. .
- natural cotton 5 to 30%, rayon or acetate was mixed in a ratio of 70 to 95%, considering the liquid mobility from the inner surface of the labia and the chemical irritation by the active agent.
- the fibers After adjusting the fibers in the range of 20 to 50 g Zm2, the fibers are entangled by hydroentanglement and dried, and the spunlace nonwoven fabric is adjusted to a thickness of 0.3 to 1.0 mm. Is preferred.
- the yarn quality used in this case is 15 to 6 Omm for natural cotton, 25 to 51 mm for rayon or acetate, and 2.2 to 6, 6 dte X. Selected from a range.
- the material of the water-impermeable sheet used for the interlabial pad As the material of the water-impermeable sheet used for the interlabial pad, a material that can prevent menstrual blood retained in the absorbent from leaking out of the interlabial pad can be used. Further, by using a moisture-permeable material, it is possible to reduce stuffiness at the time of wearing, and it is possible to reduce discomfort at the time of wearing.
- Examples of such a material include a sheet-like film formed of a synthetic resin film. , A breathable film, paper, or a laminated material obtained by combining a nonwoven fabric and a film, which is obtained by applying a stretching treatment with an inorganic filler, having a pore size of 0.1 to 30% and having a pore size of 0.1 to 30%. It is possible to use a gas-permeable liquid blocking sheet obtained by arranging a capillary in the range of up to 0.6 mm toward the absorbent body.
- a basis weight of low-density polyethylene (LDPE) resin with a density of 0.900 to 0.925 gZ cm 3 , 1 it is preferable to use a film obtained from 5 ⁇ 3 0 gZm 2 range.
- LDPE low-density polyethylene
- the same material as the above-described water-permeable sheet / water-impermeable sheet can be used for the mini-sheet piece, but it is preferable to use a material having extensibility or elasticity in the transverse direction.
- the mini-sheet piece can be used according to the size of the finger. Because it extends in the left-right direction, the interlabial pad according to the present invention can be effectively used regardless of the size of the wearer's fingertips.
- Materials that originally have elasticity include synthetic rubbers such as styrene-butadiene-styrene block copolymer (SBS), styrene-isoprene-styrene block copolymer (SIS), urethane, etc.
- SBS styrene-butadiene-styrene block copolymer
- SIS styrene-isoprene-styrene block copolymer
- urethane etc.
- examples include a film made from an amorphous olefin resin selected from a density of 0.900 gZ cm 3, a perforated foam film, and a net.
- a woven fabric or a woven fabric in which a spun filament made of synthetic rubber is used can be used.
- spun-pound non-woven fabrics, melt-blown non-woven fabrics and foam foam sheets mainly made of synthetic rubber can be used. You.
- Suitable ones in consideration of soft texture during wearer 1 is adjusted to 5-40 micron thick, the hole area 0. 2 8 ⁇ 1. 77 mm 2, an open porosity is 40 to 70% An apertured foam film composed of SBS as a raw material is constituted.
- Non-woven fabrics include composites of heat-shrinkable polyethylene (PE) // polypropylene (PP), PEZ polyethylene terephthalate (PET), PPZP, etc., whose core component is composed of a high melting point component and whose sheath component is composed of a low melting point component.
- Spunlace nonwoven fabric made of synthetic fiber as raw material and entangled by water pressure, shrink type nonwoven fabric that promotes fiber shrinkage by applying reheated air treatment, continuous long fiber is made into a sheet by heat sealing and then forced in the vertical direction A so-called extensible spun pound specifically subjected to tentering is exemplified.
- the thickness was in the range of 2.2 to 6.6 dte X, the length was in the range of 38 to 51 mm, the core component was composed of a high melting point, and the sheath component was composed of a low melting point component.
- the heat-shrinkable PE / PP and PE / Using synthetic synthetic fibers such as PET and PP / PP as raw materials, hot air-treated bulky through-air nonwoven fabric, spunlace nonwoven fabric in which fibers are entangled by water pressure, and continuous fiber laminated and sheeted span Pond nonwoven fabric, needle punched nonwoven fabric in which fibers are entangled by needles, spunbond and meltblown layers
- synthetic synthetic fibers such as PET and PP / PP as raw materials
- hot air-treated bulky through-air nonwoven fabric spunlace nonwoven fabric in which fibers are entangled by water pressure, and continuous fiber laminated and sheeted span Pond nonwoven fabric, needle punched nonwoven fabric in which fibers are entangled by needles, spunbond and meltblown layers
- a foamed film, a material mainly composed of PE resin, and the like can be used alone or in combination.
- the thickness is 2. 2 to 4 4 dtex range of -.
- Basis weight of the through-air nonwoven fabric mainly composed of composite synthetic fibers adjusted in a range of 20 ⁇ 6 0 gZm 2 is laterally One that has been subjected to corrugated processing so that it can be extended.
- the corrugated process has at least 10% or more extensibility, more preferably a male and female mold arrangement provided so that it can be stretched in the range of 20 to 50%, and more preferably 30%. It is desirable that the load at the time of extension be in the range of 0.01 to 0.05 NZ 25 mm. (Test conditions: Tensile tensile tester, speed 10 Omm / min, chuck interval 100 mm) .
- a method for imparting extensibility a method such as a cut line or a circular cutout can be used.
- the interlabial pad of the present invention is composed of a biodegradable material and / or a water dispersible material and Z or a water soluble material. Is preferred. This is because such an interlabial pad can be dropped into the toilet as it is after use, and the pad can be discarded easily and cleanly, and the amount of dust in the toilet can be reduced.
- biodegradable refers to a substance such as carbon dioxide or methane under anaerobic or aerobic conditions in the presence of bacteria such as actinomycetes and other microorganisms in accordance with natural processes. Decomposed into water and biomass, the biodegradability of the substance (biodegradation rate, biodegradation) Degree) Force Compared to naturally occurring materials such as fallen leaves, or synthetic polymers generally recognized as biodegradable under the same environment.
- Water dispersibility has the same meaning as water disintegration, which has no effect on a limited amount of water (menstrual blood) during use, but in large amounts of water or water flow, It is easily dispersed into small pieces that do not block general toilet piping.
- Water-soluble refers to the property of being unaffected by a limited amount of water (menstrual blood) at the time of use, but soluble in a large amount of water or water flow.
- Materials that can be used for the water-permeable sheet include spunlace nonwoven fabric,
- a wet spunlace nonwoven fabric having a fiber length selected from a range of 1 to 15 mm can be used.
- biodegradable resins by hydrolysis such as polylactic acid and polybutylene succinate, can also be used.
- polylactic acid basis weight 2 0 ⁇ 6 0 g Z xn meltblown nonwoven fabric was adjusted at 2 by weight and having a basis weight 1 5 ⁇ 3 0 g / m 2 range produced as a raw material, the fiber thickness 1.1 Spun-pound nonwovens adjusted in the range of ⁇ 3.3 dte X.
- Each nonwoven fabric material may or may not be subjected to the opening treatment.
- the tow is a continuous textiles of synthetic fibers alone or laminate is adjusted to a range of basis weight 5 0 ⁇ 3 0 0 g Zm 2 , used by fibrillating fibers You can also.
- a nonwoven fabric sheet obtained from needling can be used.
- Materials that can be used for the water-impermeable sheet include a polyvinyl alcohol (PVA) film, a film sheet that is water-repellent on one or both sides, or a part of the PVA film, or a silicone mixed PVA.
- PVA polyvinyl alcohol
- Films, starch films, laminated papers with films and tissues made from biodegradable resins by hydrolysis such as polylactic acid or polybutylene succinate can be used.
- inorganic pigments may be mixed in the range of 0.1 to 5% for coloring.
- a film made of polylactic acid as a raw material with a thickness of 10 to 20 microns should be used.
- Laminated paper laminated with a tissue selected from the range of 5 to 20 g Zm 2 and further provided with a lamination area ratio of 5 to 40% during lamination is preferable.
- Materials that can be used for mini-sheet pieces include films made from biodegradable materials such as polylactic acid and polybutylene succinate, spunbond nonwoven fabric, meltblown nonwoven fabric, etc., or PVA, carboxymethylcellulose (CMC) And water-dispersible tissue and spunlace nonwoven fabric mainly composed of cellulose fiber, regenerated cellulose fiber and the like.
- biodegradable materials such as polylactic acid and polybutylene succinate, spunbond nonwoven fabric, meltblown nonwoven fabric, etc., or PVA, carboxymethylcellulose (CMC) And water-dispersible tissue and spunlace nonwoven fabric mainly composed of cellulose fiber, regenerated cellulose fiber and the like.
- a spunbonded nonwoven fabric or Mel Toblerone nonwoven mainly of biodegradable material thickness is zero. 1-3. Of 3 dtex range, is with the eyes 1 5-4 of 0 g / m 2 A sheet that has been adjusted to a range and can be obtained by applying mechanical korgut processing ahead of time.
- water-soluble or water-swellable polyvinyl alcohol Bonding methods such as bonding with a tool or the like, heat sealing, or bonding by hydrogen bonding can be used alone or in an appropriate combination.
- the measurement of the maximum absorption amount of the absorber can be performed by the following method. Prepare measuring instruments such as scales, stopwatches, plastic containers, and artificial menstrual blood. As for the artificial menstrual blood, as shown in Table 1, first-class reagents manufactured by Wako Pure Chemical Co., Ltd. and reagents for artificial menstruation using food dyes manufactured by Koyo Products Co., Ltd. (Value per liter of ion-exchanged water) (1 ) Canolepoxinolemethylcellulose sodium (Na CMC):
- a test piece was prepared. N number of samples were randomly collected in a length of 100 mm in each of the longitudinal direction and the lateral direction of the absorber. The weight of the sample was measured with a scale (Wl). The artificial menstrual blood prepared above was placed in a plastic container until the artificial menstrual blood depth became 10 mm or more. In this, the collected test piece was set so as to be completely immersed in artificial menstrual blood. Then, it was left as it was for 3 minutes (the environment at this time was a temperature of 20 ° C. and a humidity of 60%). After 3 minutes, lift the sample and measure the weight with a scale (W 2). By subtracting W 1 from W 2 (W 2 ⁇ W 1), the absorption amount (maximum absorption amount) was calculated. The absorption capacity is obtained by dividing the amount of absorption by the weight W 1 of the sample.
- the measurement of Klemm's water absorption measures the liquid affinity (diffusion) of the test specimen.
- a measuring instrument, a stopwatch, a plastic container, and the artificial menstrual blood obtained by the above method were used as measuring instruments.
- the measurement requires A predetermined number (N) of samples were randomly sampled in a length of 25 mm and a length of 10 O mm in each of the longitudinal and lateral directions, and used as test specimens.
- artificial menstrual blood was placed in a plastic container until the artificial menstrual blood depth became 1 Omm or more.
- the collected test piece was fixed with a fixed chuck, and set to be immersed in artificial menstrual blood at a depth of 5 mm from the tip of the test piece.
- An interlabial pad composed of an absorber that absorbs bodily fluids and a covering material that covers the absorber, in a shape that can be easily sandwiched between the labia of a woman, and the absorber is a labia located on the body side
- the body layer is composed of a body fluid storage layer located below (the clothing side) and covered by the labia follow layer, and when the interlabial pad is worn, the labia follow layer becomes a body fluid.
- the interlabial pad which is easier to compress than the storage layer and easily deformed and has a lower apparent density than the body fluid storage layer, is expected to have the following effects.
- the labia follow-up layer which can be compressed and deformed more easily than the body fluid storage layer, is located close to the labia inner wall, it is assumed that the labia are bent to the left and right around the vertical direction and the labia inner wall is deformed unevenly.
- the labia following layer can be easily compressed and deformed in response to changes in the behavior of the inner wall of the labia, and the body side of the bodily fluid storage layer is covered with the labia following layer. Since the cushioning can be performed by the following layer, it is difficult for the wearer to feel a foreign substance.
- the body fluid storage layer is less compressed than the labia following layer and is located below the labia following layer, external pressure is less likely to be applied to the body fluid storage layer, and menstrual blood accumulated in the body fluid storage layer returns. To prevent menstrual blood leaks.
- a labyrinth-following layer with low density set near the inner wall of the labia and its clothing (below Because the body fluid storage layer with increased density is located on the side, the behavior of the female vestibule floor and labia inner wall is set at a low density even for a high-speed and large amount of excretion route flowing down the labia inner wall.
- Menstrual blood is captured by the labia following layer, which easily deforms in response to changes, and can be continuously transferred to the bodily fluid storage layer by capillary action between the labia following layer and the bodily fluid storage layer. Even if menstrual blood is discharged again, it is captured by the labia following layer, and menstrual leakage can be prevented. At the same time, menstrual blood accumulates from the body fluid storage layer on the clothes side of the absorber, making it difficult for menstrual blood to stay on the surface of the interlabial pad, and preventing the fluidity of menstrual blood from dropping off the interlabial pad Can also be prevented.
Abstract
Description
Claims
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU2003257540A AU2003257540A1 (en) | 2002-09-12 | 2003-08-26 | Inter-labia pad |
AT03795236T ATE527973T1 (de) | 2002-09-12 | 2003-08-26 | Inter-labia-einlage |
KR1020057004132A KR101100572B1 (ko) | 2002-09-12 | 2003-08-26 | 음순간 패드 |
CA002497652A CA2497652A1 (en) | 2002-09-12 | 2003-08-26 | Inter-labia pad |
EP03795236A EP1543806B1 (en) | 2002-09-12 | 2003-08-26 | Inter-labia pad |
US11/074,325 US7307197B2 (en) | 2002-09-12 | 2005-03-03 | Interlabial pad having a labial-following layer |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2002-267136 | 2002-09-12 | ||
JP2002267136A JP4311920B2 (ja) | 2002-09-12 | 2002-09-12 | 陰唇間パッド |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US11/074,325 Continuation US7307197B2 (en) | 2002-09-12 | 2005-03-03 | Interlabial pad having a labial-following layer |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2004024050A1 true WO2004024050A1 (ja) | 2004-03-25 |
Family
ID=31986686
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2003/010767 WO2004024050A1 (ja) | 2002-09-12 | 2003-08-26 | 陰唇間パッド |
Country Status (11)
Country | Link |
---|---|
US (1) | US7307197B2 (ja) |
EP (1) | EP1543806B1 (ja) |
JP (1) | JP4311920B2 (ja) |
KR (1) | KR101100572B1 (ja) |
CN (2) | CN101530362B (ja) |
AT (1) | ATE527973T1 (ja) |
AU (1) | AU2003257540A1 (ja) |
CA (1) | CA2497652A1 (ja) |
MY (1) | MY138964A (ja) |
TW (1) | TWI236365B (ja) |
WO (1) | WO2004024050A1 (ja) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7507225B2 (en) * | 2003-12-09 | 2009-03-24 | Uni-Charm Corporation | Interlabial pad |
US7806881B2 (en) | 2004-06-11 | 2010-10-05 | Uni-Charm Corporation | Inter-labial pad |
Families Citing this family (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
TWI361060B (en) * | 2003-12-09 | 2012-04-01 | Uni Charm Corp | Interlabial pad |
CN100508925C (zh) * | 2003-12-09 | 2009-07-08 | 尤妮佳股份有限公司 | 阴唇间垫 |
JP4694149B2 (ja) | 2004-05-28 | 2011-06-08 | ユニ・チャーム株式会社 | 陰唇間パッド |
JP4583106B2 (ja) * | 2004-08-12 | 2010-11-17 | ユニ・チャーム株式会社 | 陰唇間パッド |
JP4705369B2 (ja) | 2004-12-28 | 2011-06-22 | ユニ・チャーム株式会社 | 陰唇間パッド |
JP4482466B2 (ja) | 2005-03-04 | 2010-06-16 | ユニ・チャーム株式会社 | 陰唇間パッド |
JP4606287B2 (ja) * | 2005-09-20 | 2011-01-05 | 花王株式会社 | 吸収性物品 |
JP4606286B2 (ja) * | 2005-09-20 | 2011-01-05 | 花王株式会社 | 吸収性物品 |
JP4953611B2 (ja) * | 2005-10-04 | 2012-06-13 | ユニ・チャーム株式会社 | 陰唇間パッド |
JP5498028B2 (ja) * | 2009-02-06 | 2014-05-21 | ユニ・チャーム株式会社 | 使い捨ての体液吸収性着用物品 |
JP5039731B2 (ja) * | 2009-03-06 | 2012-10-03 | ユニ・チャーム株式会社 | 陰唇間パッド |
JP6373216B2 (ja) * | 2015-03-31 | 2018-08-15 | ユニ・チャーム株式会社 | 吸収性物品 |
JP5978341B1 (ja) * | 2015-03-31 | 2016-08-24 | ユニ・チャーム株式会社 | 吸収性物品 |
JP6577802B2 (ja) * | 2015-09-25 | 2019-09-18 | 花王株式会社 | 陰唇間パッド |
GB201802453D0 (en) * | 2018-02-15 | 2018-04-04 | Blevins John | An absorbent member for a body cleft adapted producr and product with such absorbent member |
US20210378883A1 (en) * | 2020-06-08 | 2021-12-09 | Lynnea Lang | Feminine sanitary fold device |
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2003
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- 2003-08-26 AU AU2003257540A patent/AU2003257540A1/en not_active Abandoned
- 2003-08-26 KR KR1020057004132A patent/KR101100572B1/ko not_active IP Right Cessation
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US7806881B2 (en) | 2004-06-11 | 2010-10-05 | Uni-Charm Corporation | Inter-labial pad |
Also Published As
Publication number | Publication date |
---|---|
TWI236365B (en) | 2005-07-21 |
US7307197B2 (en) | 2007-12-11 |
KR20050042806A (ko) | 2005-05-10 |
TW200418434A (en) | 2004-10-01 |
US20050215969A1 (en) | 2005-09-29 |
CA2497652A1 (en) | 2004-03-25 |
EP1543806B1 (en) | 2011-10-12 |
JP4311920B2 (ja) | 2009-08-12 |
KR101100572B1 (ko) | 2011-12-29 |
CN100493481C (zh) | 2009-06-03 |
CN101530362A (zh) | 2009-09-16 |
MY138964A (en) | 2009-08-28 |
JP2004097693A (ja) | 2004-04-02 |
ATE527973T1 (de) | 2011-10-15 |
EP1543806A1 (en) | 2005-06-22 |
CN101530362B (zh) | 2011-08-24 |
EP1543806A4 (en) | 2007-12-19 |
AU2003257540A1 (en) | 2004-04-30 |
CN1681461A (zh) | 2005-10-12 |
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