WO1994010951A1 - An absorbent article and a method for its manufacture - Google Patents
An absorbent article and a method for its manufacture Download PDFInfo
- Publication number
- WO1994010951A1 WO1994010951A1 PCT/SE1993/000963 SE9300963W WO9410951A1 WO 1994010951 A1 WO1994010951 A1 WO 1994010951A1 SE 9300963 W SE9300963 W SE 9300963W WO 9410951 A1 WO9410951 A1 WO 9410951A1
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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
- A61F13/45—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
- A61F13/49—Absorbent articles specially adapted to be worn around the waist, e.g. diapers
- A61F13/494—Absorbent articles specially adapted to be worn around the waist, e.g. diapers characterised by edge leakage prevention means
-
- 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
- A61F13/15577—Apparatus or processes for manufacturing
- A61F13/15699—Forming webs by bringing together several webs, e.g. by laminating or folding several webs, with or without additional treatment of the webs
-
- 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
- A61F13/49—Absorbent articles specially adapted to be worn around the waist, e.g. diapers
- A61F13/49007—Form-fitting, self-adjusting disposable diapers
- A61F13/49009—Form-fitting, self-adjusting disposable diapers with elastic means
-
- 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
- A61F13/49—Absorbent articles specially adapted to be worn around the waist, e.g. diapers
- A61F13/49007—Form-fitting, self-adjusting disposable diapers
- A61F13/49009—Form-fitting, self-adjusting disposable diapers with elastic means
- A61F13/49017—Form-fitting, self-adjusting disposable diapers with elastic means the elastic means being located at the crotch region
-
- 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
- A61F13/49—Absorbent articles specially adapted to be worn around the waist, e.g. diapers
- A61F13/494—Absorbent articles specially adapted to be worn around the waist, e.g. diapers characterised by edge leakage prevention means
- A61F13/49406—Absorbent articles specially adapted to be worn around the waist, e.g. diapers characterised by edge leakage prevention means the edge leakage prevention means being at the crotch region
- A61F13/49413—Absorbent articles specially adapted to be worn around the waist, e.g. diapers characterised by edge leakage prevention means the edge leakage prevention means being at the crotch region the edge leakage prevention means being an upstanding barrier
-
- 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
- A61F13/505—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators with separable parts, e.g. combination of disposable and reusable 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
- A61F13/45—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
- A61F13/49—Absorbent articles specially adapted to be worn around the waist, e.g. diapers
- A61F13/49007—Form-fitting, self-adjusting disposable diapers
- A61F13/49009—Form-fitting, self-adjusting disposable diapers with elastic means
- A61F13/4902—Form-fitting, self-adjusting disposable diapers with elastic means characterised by the elastic material
- A61F2013/49031—Form-fitting, self-adjusting disposable diapers with elastic means characterised by the elastic material being elastic in longitudinal 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
- A61F13/45—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
- A61F13/49—Absorbent articles specially adapted to be worn around the waist, e.g. diapers
- A61F2013/49088—Absorbent articles specially adapted to be worn around the waist, e.g. diapers characterized by the leg opening
-
- 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
- A61F13/49—Absorbent articles specially adapted to be worn around the waist, e.g. diapers
- A61F13/494—Absorbent articles specially adapted to be worn around the waist, e.g. diapers characterised by edge leakage prevention means
- A61F13/49406—Absorbent articles specially adapted to be worn around the waist, e.g. diapers characterised by edge leakage prevention means the edge leakage prevention means being at the crotch region
- A61F13/49413—Absorbent articles specially adapted to be worn around the waist, e.g. diapers characterised by edge leakage prevention means the edge leakage prevention means being at the crotch region the edge leakage prevention means being an upstanding barrier
- A61F2013/49433—Absorbent articles specially adapted to be worn around the waist, e.g. diapers characterised by edge leakage prevention means the edge leakage prevention means being at the crotch region the edge leakage prevention means being an upstanding barrier the barrier having variable heights
-
- 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
- A61F13/49—Absorbent articles specially adapted to be worn around the waist, e.g. diapers
- A61F13/494—Absorbent articles specially adapted to be worn around the waist, e.g. diapers characterised by edge leakage prevention means
- A61F2013/4948—Absorbent articles specially adapted to be worn around the waist, e.g. diapers characterised by edge leakage prevention means the edge leakage prevention means being elastic
-
- 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
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T156/00—Adhesive bonding and miscellaneous chemical manufacture
- Y10T156/10—Methods of surface bonding and/or assembly therefor
- Y10T156/1052—Methods of surface bonding and/or assembly therefor with cutting, punching, tearing or severing
- Y10T156/1062—Prior to assembly
- Y10T156/1075—Prior to assembly of plural laminae from single stock and assembling to each other or to additional lamina
- Y10T156/1077—Applying plural cut laminae to single face of additional lamina
Definitions
- the present invention relates to an absorbent article, such as a diaper, an incontinence guard, a sanitary napkin or like article, which is manufactured from a generally rectangular blank comprising an inner casing sheet which lies proximal to the wearer in use, an outer casing sheet which lies distal from the wearer in use, and an absorbent body which is enclosed between the two casing sheets.
- the present invention also relates to a method of manu ⁇ facturing such an article.
- An article of this kind shall be able to receive body fluid discharged by the wearer without leaking.
- Absorbent articles that are intended for one-time use only, for instance children's diapers, adult incontinence guards or sanitary napkins are normally constructed from a layer of non-woven material through which fluids dis- charged by the wearer are permitted to pass, an absorbent layer of, e.g., fluff pulp, optionally combined with so- called superabsorbents, and a liquid-impervious layer of polyethylene for instance.
- an absorbent layer of, e.g., fluff pulp optionally combined with so- called superabsorbents
- a liquid-impervious layer of polyethylene for instance.
- An absorbent article which is intended for one-time use only will preferably be simple to manufacture. Conse ⁇ quently, from the aspect of manufacture, it is desirable that such articles deviate as little as possible from a simple flat and rectangular shape, a shape which, how-ev- er, is rather poorly adapted to the anatomy of the wearer.
- the narrowest part is dimensioned so as to cover the rela ⁇ tively narrow space at the bottom of the pelvis between the thighs of the wearer when the article is worn, without forming grooves and folds in the material, and the edges of the arcuate, narrowing contour are adapted to conform to the thighs of the wearer in use.
- An anatomical configuration of the article in accordance with known methods unavoidably causes some of the mate ⁇ rial to remain unused, a fact which must be considered incompatible with the high demands placed on the utili ⁇ zation of resources that should be expected in the manu ⁇ facture of disposable articles.
- EP 0,145,080 teaches a similar invention which is intended to improve sealing of the article in the crotch region thereof.
- This speci ⁇ fication also expresses the desire of avoiding mounting an elastic band along a curved line and, instead, sug- gests that the elastic band is mounted on both sides of the absorbent pad along the long sides thereof in a generally straight, process-friendly configuration, and then to fold the article over its inner surface and join the folds in a punctiform fashion, so that the elastic bands are curved around the leg openings and provide the desired anatomical conformity.
- Another known method of attempting to prevent side leakage in the crotch region of the article involves the construction of barriers along the long sides of the absorbent body or the absorbent core as a complement to leg elastication, for instance as described in the European Patent Specification EP 0,219,326. It is assumed that the barriers will be raised on the inside of the article against the wearer's body when the article is in use. When the wearer discharges relatively large volumes of body fluid quickly, not all of the fluid is able to penetrate the inner sheet immediately and be absorbed by the absorbent core. This part of the discharged fluid collects on top of the inner sheet at the enclosed central part of the article and is retained between the erected barriers until it can be absorbed.
- Such barriers may comprise liquid-impermeable material which is glued or welded along the absorbent body and which is lifted with the aid of the elastic system.
- the barriers are also particularly suitable for retaining faeces, and barriers which are primarily intended for this purpose need not be impervious to liquid.
- An inventive absorbent article is characterized in that the blank is folded along one or more fold lines; in that two join lines which prior to folding extend one on each side of the fold line have been brought together to a baseline along which the folded material has been joined, at least in a punctiform fashion, to form one or more folds on the inside of the article; in that the path followed by the join lines in relation to associated fold line has been chosen so as to achieve a desired variation in the dimension of the article transversely to the fold line and along the length thereof when forming the fold; and in that when raised on the inside of the article, the fold or folds forms/form a leakage-prevention barrier whose height is determined by the path followed by the join lines.
- the present invention is based on the concept of creating leakage barriers from those folds which occur in the material when the original rectangular blank, from which the article is produced, is folded into a desired shape. That material which is no longer used laterally is used vertically instead.
- the original rectangular shape of the blank is formed to an hourglass shape, wherein the gathered material forms a fold on each side of the longitudinally extending centre axis of the article.
- the height of the barriers is defined as the distance between the fold baseline and the fold folding line as measured perpendicularly to said fold line, and varies along the length of the barriers while being generally proportional to the dimensional change that occurs trans ⁇ versely to the fold when folding the material.
- the barriers preferably extend along two fold lines which extend symmetrically on both sides of the longitudinally extending centre axis of the article over at least a part of the length of the article, although while crossing the transverse centre axis thereof.
- the fold lines are preferably straight, they may also be arcuate, either inwardly or outwardly, continuously curved, or may consist of several mutually adjacent rectilinear segments.
- the fold lines may be parallel with the longitudinal centre axis of the article or may converge so that the fluid-receiving surface delimited therebetween will vary along the length of the article.
- the fold lines are preferably located on side flaps outside the edges of the absorbent body.
- side flaps include both of the aforesaid casing sheets or solely one of said sheets.
- the side flaps may also consist of a casing material which is different to the remainder of the casing material, preferably a breath ⁇ able, vapour-permeable material, or some other skin- friendly material which can be easily joined to the rectangular blank before bringing the blank to its final shape.
- join lines extend symmetrically on both sides of each fold line, or when the fold line is curved, are located at the same distance from said fold line in a direction perpendicular thereto, and are brought together to form the baseline of the fold and are joined to one another in conjunction with making the fold, so as to give the article its definitive, three-dimensional shape.
- the join lines may also be located asymmetrically on respective sides of the fold line.
- one of the fold lines may be curved and the other straight, or both join lines may be curved but with different radiuses of curvature. This will mean that the material in the resultant fold will be stretched to a greater extent in one side of the fold, or that one side of the fold will be stretched and the other pleated. This will create in the material tension forces which force the fold to rise to an intended position.
- the fold lines are straight and the join lines are arcuate.
- the heights of the barriers vary in the longitudinal direc ⁇ tion in mutually the same manner along both of the fold lines, and will conveniently be at their highest in the vicinity of the transverse centre axis of the article, with a continuously decreasing value towards the two end edges of the article.
- the join lines may also be composed of several, closely adjacent straight segments.
- the join lines may cross associated fold lines, i.e. the fold may be partially raised on the rear side of the article. Constructions which include several join lines on both sides of a fold line, or a series of alternating fold and join lines or the like, i.e. barriers which are comprised of several folds or pleats, are of course conceivable, as are also constructions in which, subsequent to forming the fold, the fold line is combined with the fold base ⁇ line to form a lower, thicker fold, or alternatively a hose-like fold.
- the two inwardly lying join lines i.e. the join lines that are located in the central receiving zone of the article extend conveniently out over the absorbent body, at least partially, so that the resultant barrier will include a part of the absorbent body material, from its base and up to a given level along its height and also along the whole of its length.
- the barrier height as a function of the position in the longitudinal direction will thereafter determine the final shape of the article.
- the barrier height decreases symmetrically and continuously in a convex curve, from its maximum value at the transverse centre axis of the article to a zero value at the point where the fold line and the join lines are combined. This corresponds to an arcuate narrowing of the shape or profile of the article.
- the final width b of the article as a function of the position in the longitudinal direction x can be expressed as: b(x) - B - 4 h(x), where B is the original width of the article and h(x) is the barrier height as a function of the position in the longitudinal direction.
- the maximum value of the barrier height will not exceed the value of the smallest distance between the outer join line and the side edge of the article, in order to prevent the leakage barrier from extending beyond the side edge of the article when the article is in use, should the barrier be unintentionally folded down against said edge.
- a pretensioned elastic element such as an elastic thread, band or the like, can be mounted along the fold lines or between two join lines which are associated with one and the same fold line, such that the elastic element will extend along and within the barrier after joining the fold.
- These elements can be fastened to the article in a punctiform fashion, with the points so selected that the elements tend to contract when the article is curved in connection with putting it on, therewith assisting in holding the barriers in a raised position.
- These elastic elements can be mounted between the casing sheets, e.g. on the inner casing sheet, on the side thereof which lies proximal to the outer casing sheet, where a small fold or sleeve may be arranged for accommodating the elastic elements.
- the elastic elements may be mounted on the outside of the article, i.e. on the outer surface of the outer casing sheet.
- the article may also be provided with one or more pre- tensioned elastic elements, such as elastic threads, bands or the like, along at least a part of the long sides of the rectangular blank.
- these elastic elements are curved along the arcuate, narrowing sides so that when the article is worn, they will endeavour to contract around the wearer's thighs and function as tightly seating leg elastic.
- An element, such as a band, strip or the like, preferably made of an elastic material, such as foam plastic, elastic non-woven fabric or the like, can also be mounted along the long sides of the blank and folded over along the edges there ⁇ of. In this way, there is formed a hose-like fold having loop-like cross-section which extends along the edge of the article. Further elastic elements can be mounted within this fold and function as leg elastic when the article is worn.
- the article When the article is a diaper or an incontinence guard, the article is fastened with the aid of adhesive tape, burr-type fastener bands or the like, either at the front and rear part of the article around the waist of the wearer, or to a reusable belt.
- the belt When the article is fastened to a reusable belt, the belt is covered with, for instance, looped burr fastener devices, whereas the article is provided with hooked burr-fastener bands at the corners or along the waist parts of the article.
- Figures 2-5 illustrate modified embodiments
- Figure 6 is a broken cross-sectional view of the blank 4 of Figure 1 and shows the blank in a finished state
- Figure 7 is a perspective view of the proposed exempli ⁇ fying embodiment of Figure 1;
- Figures 8 and 9 are views like that in Fig. 6 of alter ⁇ native embodiments to that shown in Figures 6 and 7.
- the figures illustrate diapers or incontinence guards which include an inner casing sheet 1 of liquid-permecible material, suitably non-woven material, an outer casing sheet 2 of liquid-impermeable material, for instance polyethylene film, and an absorbent body or pad 3 which is enclosed between the casing sheets.
- the absorbent body 3 may be comprised of cellulose fluff pulp which includes superabsorbent material in fibre or particle form.
- the blank 4 which includes the casing sheets and the absorbent body, is originally rectangular in shape and parts of the casing sheets protrude beyond the absorbent body and said sheets are mutually joined at said pro ⁇ truding parts.
- the blank 4 has a front part 5, a rear part 6 and a crotch part 7.
- the fold 8 is formed by folding the blank along the fold lines 9 and by bringing together the join lines 11, see Figures 1-5, on both sides of the fold line and joining said fold lines in a baseline 12, see Figures 6-9.
- the join lines 11 may be joined together in a punctiform fashion or may be joined continuously along the whole of the base line. It is also conceivable to bond together over the whole of their sur- faces those parts of the outer casing sheet which lie in mutual abutment in the folds.
- a pretensioned elastic thread 13 is mounted in the fold 8, either between the casing sheets 1 and 2 as shown in Figures 6 and 7, on the outside of the outer casing sheet 2 as shown in Figure 8, or within a further fold 17 in the inner casing sheet 1, as shown in Figure 9.
- the elastic thread 13 assists in holding the fold raised, essentially at right angles to the plane of the blank 4.
- a pretensioned elastic band 14, conveniently an elastic foam material, is mounted along the side edges of the blank 4, this band being folded around the edge parts of the casing and forming a hose-like fold having a loop ⁇ like cross-section, as shown in Figures 6-9.
- a pre ⁇ tensioned elastic thread 15 is mounted in said fold.
- the folds 8 form barriers which prevent urine and faeces from spreading further laterally.
- the edge parts of the casing sheets formed outside the folds are intended to embrace the wearer's legs, at least the insides of the wearer's thighs, said elastic devices 14, 15 functioning as leg elastic and sealing against undesirable leakage around the wearer's leg.
- Figure 1 illustrates a configuration in which each of two parallel fold lines 9 extends on a respective side of the absorbent body 3.
- the join lines 11 are arcuate in shape and the distance between said lines and the associated fold line is greatest where the width of the article is intended to be smallest, i.e. in the vicinity of the transverse centre axis 12.
- the distance between the outer join line lib and the edge of the article is greater at this point than the distance between the join line lib and the fold line 9, so as to prevent the barrier from extending beyond the side edge of the article when the article is worn, should the barrier be unintentionally folded down onto said side edge.
- the inner join lines 11a extend partially in over the absor ⁇ bent body 3, and the barriers will therefore include a part of the absorbent body, as illustrated in the cross- sectional views of Figure 6-9.
- the outer join lines lib extend along side flaps 16 outside the edges of the absorbent body 3.
- These side flaps 16 include both casing sheets 1, 2.
- the side flaps 16 may also consist of casing material of a kind which is different to the remainder of the casing, preferably a breathable, vapour-permeable material or some other kind of skin-friendly material which can be readily joined to the rectangular blank 4 prior to shaping the blank to its final hourglass shape.
- Such vapour-permeable material may, for instance, consist solely of the inner casing sheet.
- the absorbent body may also extend over the entire surface of the blank.
- Figure 2 illustrates a variation of the configuration shown in Figure 1, in which the fold lines 9 extend along the full length of the article and in which the join lines 11 are comprised of three mutually sequential straight join-line parts.
- Figure 3 illustrates a configuration comprising four fold lines 9, of which two lines extend in the transverse direction of the article and two lines extend in the longitudinal direction of the article.
- the fold lines 9 enclose a central receiving zone 7 and extend in over the absorbent body 3.
- Figure 4 illustrates a variant in which two non-parallel fold lines 9 extend symmetrically on a respective side of the absorbent body 3 and lie partially on said body.
- the size of the central receiving surface 7 varies along the length of the article and a larger surface is delimited, for instance, on the rear part 6 of the article for collecting faeces in the case of adult incontinence guards.
- the join lines 11 are comprised of two straight segments.
- Figure 5 illustrates an alternative which includes two curved fold lines 9 and join lines 11 which are located asymmetrically adjacent thereto. This configuration is also suitable for sanitary napkins, panty protectors and like articles.
- Figure 6 is a cross-sectional view of one of the barriers included in the article and shows the blank in a folded state in accordance with Figure 1, for example.
- the fold line 9 forms the top of the barrier and the baseline 12 is the line along which two join lines 11 are joined.
- the join lines are joined together with the aid of an adhesive, by welding or some like technique, and are joined in a punctiform fashion or continuously along the whole of the baseline 12, optionally on a part of the mutually facing surfaces of the outer casing sheet 2 or over the whole of these surfaces.
- the elastic element 13 is mounted along and within the fold 8, between the inner casing sheet 1 and the outer casing sheet 2, and is fastened to the article at points which are so chosen as to assist in holding the fold 8 in a raised state.
- This element 13 may alternatively be arranged on the outer surface of the outer sheet 2, as shown in Figure 8, or within a further fold 17 formed in the inner sheet 1, as shown in Figure 9.
- the absorbent body 3 extends into the fold 8, so as to strengthen the fold and to enhance its leakage-prevention ability.
- the elastic element 15, which is intended to function as leg elastic, extends within a hose-like fold 14 having a loop-like cross-sectional shape.
- This fold 14 is formed from a broad band of skin- friendly material of a type different to the remaining casing material.
- the material band 14 may cover the whole of the side flaps 16 or a part thereof and may also be fastened to the edge of the casing material in the vicinity of the baseline 12 and extend beyond this edge to form further side flaps.
- a broad material band 14 can be applied to the side edges of the rectangular blank 4 much more readily than when the same band is applied along curved surfaces.
- the absorbent body may conveniently be comprised of roll material, for instance a continuous web of cellulose fibre, optionally admixed with reinforcing thermoplastic fibres.
- the roll material may also be comprised of a number of tissue layers which enclose superabsorbent particles.
- the roll material may also be a foam material, optionally with an admixture of superabsorbent material.
Abstract
Description
Claims
Priority Applications (13)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP94900337A EP0773762B1 (en) | 1992-11-11 | 1993-11-11 | An absorbent article having raised barrier folds |
SK611-95A SK281394B6 (en) | 1992-11-11 | 1993-11-11 | Absorbent article and a method for its manufacture |
JP51200394A JP3454361B2 (en) | 1992-11-11 | 1993-11-11 | Absorbent article and method of manufacturing the same |
DK94900337T DK0773762T3 (en) | 1992-11-11 | 1993-11-11 | An absorbent article with raised barrier folds |
GB9509024A GB2287396B (en) | 1992-11-11 | 1993-11-11 | An absorbent article and a method of its manufacture |
AU55357/94A AU675472B2 (en) | 1992-11-11 | 1993-11-11 | An absorbent article and a method for its manufacture |
AT94900337T ATE214257T1 (en) | 1992-11-11 | 1993-11-11 | ABSORBENT ARTICLE WITH RAISED WRINKLES |
PL93308955A PL173053B1 (en) | 1992-11-11 | 1993-11-11 | Moisture absorbing product and method of making same |
HU9501360A HU218247B (en) | 1992-11-11 | 1993-11-11 | An absorbent article |
DE69331714T DE69331714T2 (en) | 1992-11-11 | 1993-11-11 | ABSORBENT ARTICLE WITH HIGH FOLDING |
CA002149143A CA2149143C (en) | 1992-11-11 | 1993-11-11 | An absorbent article and a method for its manufacturing |
NO951843A NO302997B1 (en) | 1992-11-11 | 1995-05-10 | Absorbent article and method of manufacture thereof |
FI952306A FI952306A0 (en) | 1992-11-11 | 1995-05-11 | Absorbent article and process for its preparation |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE9203372-9 | 1992-11-11 | ||
SE9203372A SE508450C2 (en) | 1992-11-11 | 1992-11-11 | Absorbent article and method of making it |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1994010951A1 true WO1994010951A1 (en) | 1994-05-26 |
Family
ID=20387777
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/SE1993/000964 WO1994010952A1 (en) | 1992-11-11 | 1993-11-11 | An absorbent article having separately attached side-flaps, and a method of manufacturing such an article |
PCT/SE1993/000963 WO1994010951A1 (en) | 1992-11-11 | 1993-11-11 | An absorbent article and a method for its manufacture |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/SE1993/000964 WO1994010952A1 (en) | 1992-11-11 | 1993-11-11 | An absorbent article having separately attached side-flaps, and a method of manufacturing such an article |
Country Status (20)
Country | Link |
---|---|
US (1) | US5674215A (en) |
EP (2) | EP0773762B1 (en) |
JP (2) | JP3430441B2 (en) |
AT (2) | ATE192323T1 (en) |
AU (2) | AU675684B2 (en) |
CA (2) | CA2149143C (en) |
CO (1) | CO4130277A1 (en) |
CZ (2) | CZ285134B6 (en) |
DE (2) | DE69328573T2 (en) |
DK (2) | DK0773762T3 (en) |
ES (1) | ES2147778T3 (en) |
FI (2) | FI952307A (en) |
GB (2) | GB2287395B (en) |
HU (2) | HUT73115A (en) |
NO (1) | NO304257B1 (en) |
NZ (2) | NZ257924A (en) |
PL (2) | PL173053B1 (en) |
SE (1) | SE508450C2 (en) |
SK (2) | SK280593B6 (en) |
WO (2) | WO1994010952A1 (en) |
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-
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- 1993-11-10 CO CO93417895A patent/CO4130277A1/en unknown
- 1993-11-11 US US08/433,464 patent/US5674215A/en not_active Expired - Lifetime
- 1993-11-11 WO PCT/SE1993/000964 patent/WO1994010952A1/en active IP Right Grant
- 1993-11-11 GB GB9509023A patent/GB2287395B/en not_active Expired - Fee Related
- 1993-11-11 CA CA002149143A patent/CA2149143C/en not_active Expired - Fee Related
- 1993-11-11 SK SK613-95A patent/SK280593B6/en unknown
- 1993-11-11 HU HU9501365A patent/HUT73115A/en unknown
- 1993-11-11 GB GB9509024A patent/GB2287396B/en not_active Expired - Fee Related
- 1993-11-11 HU HU9501360A patent/HU218247B/en not_active IP Right Cessation
- 1993-11-11 CZ CZ951197A patent/CZ285134B6/en not_active IP Right Cessation
- 1993-11-11 AU AU55358/94A patent/AU675684B2/en not_active Ceased
- 1993-11-11 NZ NZ257924A patent/NZ257924A/en unknown
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- 1993-11-11 ES ES94900338T patent/ES2147778T3/en not_active Expired - Lifetime
- 1993-11-11 DK DK94900337T patent/DK0773762T3/en active
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- 1993-11-11 NZ NZ257925A patent/NZ257925A/en unknown
- 1993-11-11 EP EP94900337A patent/EP0773762B1/en not_active Expired - Lifetime
- 1993-11-11 CZ CZ951198A patent/CZ285122B6/en not_active IP Right Cessation
- 1993-11-11 JP JP51200394A patent/JP3454361B2/en not_active Expired - Fee Related
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- 1993-11-11 AT AT94900337T patent/ATE214257T1/en not_active IP Right Cessation
- 1993-11-11 CA CA002149144A patent/CA2149144A1/en not_active Abandoned
- 1993-11-11 AU AU55357/94A patent/AU675472B2/en not_active Ceased
- 1993-11-11 SK SK611-95A patent/SK281394B6/en unknown
- 1993-11-11 EP EP94900338A patent/EP0773763B1/en not_active Expired - Lifetime
-
1995
- 1995-05-10 NO NO951844A patent/NO304257B1/en not_active IP Right Cessation
- 1995-05-11 FI FI952307A patent/FI952307A/en unknown
- 1995-05-11 FI FI952306A patent/FI952306A0/en unknown
Patent Citations (4)
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SE404868B (en) * | 1973-10-18 | 1978-11-06 | Colgate Palmolive Co | ENGANGSBLOJA |
AU595785B3 (en) * | 1984-07-02 | 1990-02-15 | Kimberly-Clark Corporation | Diapers with elasticized side pockets |
US4834740A (en) * | 1986-10-24 | 1989-05-30 | Uni-Charm Corporation | Method for making wearable articles |
US5019067A (en) * | 1989-04-13 | 1991-05-28 | Gerber Childrenswear, Inc. | Garment with protective elastic leg dams |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6183459B1 (en) * | 1994-04-21 | 2001-02-06 | Uni-Charm Corporation | Disposable diaper |
EP0957872B1 (en) * | 1996-12-23 | 2003-10-29 | Kimberly-Clark Worldwide, Inc. | Diaper with pleats for containment of liquid and solid waste |
US8246596B2 (en) | 2006-04-07 | 2012-08-21 | The Procter & Gamble Company | Absorbent article having a multi-dimensionally contoured barrier cuff |
EP2004122B2 (en) † | 2006-04-07 | 2015-02-18 | The Procter and Gamble Company | Absorbent article having a multi-dimensionally contoured barrier cuff |
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