Search Images Maps Play YouTube News Gmail Drive More »
Sign in
Screen reader users: click this link for accessible mode. Accessible mode has the same essential features but works better with your reader.

Patents

  1. Advanced Patent Search
Publication numberUSRE42478 E1
Publication typeGrant
Application numberUS 10/875,090
Publication date21 Jun 2011
Filing date11 Apr 1995
Priority date12 Apr 1994
Also published asCA2187021A1, CA2187021C, CN1095653C, CN1146145A, CN1439349A, DE69535058D1, DE69535058T2, DE69535058T3, EP0755237A1, EP0755237B1, EP0755237B2, US5855574, WO1995027461A1
Publication number10875090, 875090, US RE42478 E1, US RE42478E1, US-E1-RE42478, USRE42478 E1, USRE42478E1
InventorsRobert Kling, Urban Widlund, Gunilla Hedlund
Original AssigneeSca Hygiene Products Aktiebolag
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Method of manufacturing a pants-type diaper of a sanitary panty, and one such absorbent article
US RE42478 E1
Abstract
A method of manufacturing an absorbent article, and an absorbent article, in the form of a pants-type diaper or a sanitary panty, starting from a flat blank which includes an elongated absorbent body enclosed between two casing sheets which at opposing front and rear end parts of the absorbent body have side parts which extend laterally beyond the body on both sides thereof. The method includes the step of folding the blank around a transverse axis so that the end edges of the side parts lie edge-to-edge. At least one folded band of flexible material is placed between each pair of front and rear side parts which lie opposite one another in the folded state of the blank, and the free ends of the bands are fastened to adjacent side parts.
Images(3)
Previous page
Next page
Claims(28)
1. A method of manufacturing a pants-type diaper or a sanitary panty, starting from a flat blank which includes an elongated absorbent body enclosed between two casing sheets which at opposing front and rear end parts of the absorbent body have side parts which extend laterally beyond the body on both sides thereof, said method comprising the step of folding the blank around a transverse axis so that the end edges of the side parts lie edge-to-edge, characterized by placing at least one folded band of flexible material between each pair of front and rear side parts which oppose one another in the folded state of the blank, so that the free ends of the bands situated between the pairs of opposing side parts are turned against each other, and by fastening the free ends of said bands to adjacent side parts to form the pant-type diaper or sanitary panty.
2. The method according to claim 1, further comprising placing the folded bands and fastening said bands to the front or the rear side parts prior to folding the blank.
3. A method of manufacturing a pants-type diaper or a sanitary panty, starting from a flat blank which comprises an elongated absorbent body enclosed between two casing sheets which at opposing front and rear end parts of the absorbent body have side parts which extend laterally beyond the body and on opposite sides thereof, wherein one of the casing sheets comprises a liquid-permeable inner layer and the other of the casing sheets comprises a liquid-impermeable outer layer, wherein the blank is folded about a transverse axis so that the end edges of the side parts lie edge-to-edge, characterized by folding at least one band of flexible material about each pair of front and rear side parts which oppose one another in the folded state of the blank, and by fastening the free ends of the folded bands directly to a surface of the adjacent side parts on the liquid-permeable inner layer which faces the wearer and is adapted to directly contact the wearer during use to form the pants-type diaper or sanitary panty.
4. The method according to claim 1, further comprising folding the bands in a bellows-like fashion prior to their attachment to the side parts.
5. A pants-type diaper or sanitary panty, comprising:
an elongated absorbent body enclosed between two casing sheets which at opposing front and rear end parts of the absorbent body have side parts which extend laterally beyond all portions of said body on both sides thereof, one casing sheet and the side parts thereof having the same lateral dimensions as the other casing sheet and the side parts thereof, and a lateral distance across longitudinal edges of the side parts on the front end part being the same as a lateral distance across longitudinal edges of the side parts on the rear end part,
the opposing front and rear side parts are joined together during manufacture to form a circumferential waist opening and two predefined leg openings of the pants-type diaper or sanitary panty,
wherein a separate piece of material, that is separate from the front and rear side parts by not being integral with the front and rear side parts, extends between each paripair of the opposing front and rear side parsparts and forms a joint between these side parts such that said joint lies in a plane which is the same plane as the opposing front and rear side parts so that surfaces of the front and rear side parts which face a wearer during use of the assembly are directly attached to a same side of the separate piece of material and the joint will be subjected essentially to shear forces when the article is worn, and the separate piece of material is formed of only non-elastic material.
6. The pants-type diaper or sanitary panty according to claim 5, wherein the pieces of material joining the side parts are essentially non-elastic.
7. The pants-type diaper or sanitary panty according to claim 5, wherein the separate pieces of material are joined to the inner surfaces of the side parts.
8. The pants-type diaper or sanitary panty according to claim 5, wherein the separate pieces of material are joined to the outer surfaces of the side parts.
9. The pants-type diaper or sanitary panty according to claim 5, wherein each separate piece of material is joined to the inner surface of one of the front or rear side parts and to the outer surface of the other front or rear side part.
10. The pants-type diaper or sanitary panty according to claim 5, wherein the separate pieces of material are comprised of two separate parts which are mutually joined together by a releasable and refastenable fastener means.
11. The pants-type diaper or sanitary panty according to claim 10, wherein the fastener means comprises a row of press studs.
12. The pants-type diaper or sanitary panty according to claim 10, wherein the fastener means is comprised of projections which project from one of the separate parts of said piece and which pass through openings in the other of the separate parts of said piece.
13. The pants-type diaper or sanitary panty according to claim 10, wherein the fastener means is comprised of mutually coacting hooks and eyes.
14. The pants-type diaper or sanitary panty according to claim 10, wherein the fastener means is comprised of adhesive coatings.
15. The pants-type diaper or sanitary panty according to claim 10, wherein the fastener means is comprised of a self-fastening or hook and loop band.
16. The method according to claim 1, wherein said method comprises a method for continuous manufacturing of absorbent articles in the form of pants-type diapers or sanitary panties.
17. The pants-type diaper or sanitary panty according to claim 5, wherein the pieces of material include bands placed between each pair of front and rear side parts so that end edges of the side parts lie edge-to-edge.
18. A pants-type diaper or sanitary panty, comprising:
an elongated absorbent body enclosed between two casing sheets, the casing sheets having an area of reduced lateral width at a central portion along the length of the casing sheets to form leg openings, and at opposing front and rear end parts of the absorbent body, the casing sheets have side parts which extend laterally beyond said body and the leg openings on both sides thereof, the side parts having lateral edges extending parallel to a longitudinal axis of the casing sheets, one casing sheet and the side parts thereof having the same lateral dimensions as the other casing sheet and the side parts thereof, and a lateral distance across longitudinal edges of the side parts on the front end part being the same as a lateral distance across longitudinal edges of the side parts on rear end part;
the opposing front and rear side parts are joined together during manufacture to form a circumferential waist opening and two predefined leg openings of the pants-type diaper or sanitary panty,
wherein only a single separate piece of material, separate from the front and rear side parts, extends between each pair of the opposing front and rear side parts and is directly connected to the side parts to form a joint between the side parts such that said joint lies in a plane which is the same plane as the opposing front and rear side parts so that said joint lies in a plane which is adjacent to and parallel with the opposing front and rear side parts and the joint will be subjected essentially to shear forces when the article is worn,
wherein each of the pairs of the opposing front and rear side parts are joined together by the respective single separate piece of material and the front and rear side parts are spaced apart by a predetermined distance such that the front and rear side parts do not overlap one another in the circumferential direction.
19. A pants-type diaper or sanitary panty, comprising:
an elongated absorbent body enclosed between two casing sheets which at opposing front and rear end parts of the absorbent body have side parts which extend laterally beyond said body on both sides thereof, both casing sheets having a longitudinal length and a lateral width, the lateral width being the greatest at each longitudinal end of the casing sheets;
the opposing front and rear side parts are joined together during manufacture to form a circumferential waist opening and two predefined leg openings of the pants-type diaper or sanitary panty,
wherein only a single separate piece of material, separate from the front and rear side parts, extends between each pair of the opposing front and rear side parts and is directly connected to the side parts to form a joint between the side parts such that said joint lies in a plane which is the same plane as the opposing front and rear side parts so that outside surfaces of the front and rear side parts are attached directly to a same side of the separate piece of material and the joint will be subjected essentially to shear forces when the article is worn,
wherein each of the pairs of the opposing front and rear side parts are joined together by the respective single separate piece of material and the front and rear side parts are not directly joined to one another and do not overlap one another when the article is worn, and the single separate piece of material is formed of only non-elastic material so that the material extending between each pair of the opposing front and rear side parts is non-elastic.
20. A pants-type diaper or sanitary panty, comprising:
an elongated absorbent body enclosed between two casing sheets which at opposing front and rear end parts of the absorbent body have side parts which extend laterally beyond said body on both sides thereof, one casing sheet and the side parts thereof having the same lateral dimensions as the other casing sheet and the side parts thereof, and a lateral distance across longitudinal edges of the side parts on the front end part being the same as a lateral distance across longitudinal edges of the side parts on rear end part,
the opposing front and rear side parts are joined together during manufacture to form a circumferential waist opening and two predefined leg openings of the pants-type diaper or sanitary panty, wherein only a separate piece of material, that is separate from the front and rear side parts by not being integral with the front and rear side parts, extends between each pair of the opposing front and rear side parts and forms a joint between these side parts such that said joint lies in a plane which is the same plane as the opposing front and rear side parts so that the front and rear side parts are directly attached to a same side of the separate piece of material and the joint will be subjected essentially to shear forces when the article is worn, and the separate piece of material is folded when the opposing front and rear side parts lie parallel to each other;
the front and rear side parts are spaced from each other to thereby define a predetermined distance between the front and rear side parts as measured along a circumferential direction of the circumferential waist; and
the separate piece of material is formed of only non-elastic material and the separate piece of material is non-elastic so that the predetermined distance remains constant when the pants-type diaper or sanitary panty is worn.
21. A pants-type diaper or sanitary panty, comprising:
an elongated absorbent body enclosed between two casing sheets which at opposing front and rear end parts of the absorbent body have side parts which extend laterally beyond said body on both sides thereof,
the opposing front and rear side parts are joined together during manufacture to form a circumferential waist opening and two predefined leg openings of the pants-type diaper or sanitary panty, wherein only a separate piece of material, that is separate from the front and rear side parts by not being integral with the front and rear side parts and which extends between each pair of the opposing front and rear side parts and forms a joint between these side parts, such that the side parts are not directly joined to each other and do not overlap one another when the article is worn, and such that said joint lies in a plane which is the same plane as the opposing front and rear side parts so that outside surfaces of the front and rear side parts are directly attached to a same side of the separate piece of material and the joint will be subjected essentially to shear forces when the article is worn, and the separate piece of material is formed of only non-elastic material so that the material extending between each pair of the opposing front and rear side parts is non-elastic.
22. A pants-type diaper or sanitary panty, comprising:
an elongated absorbent body enclosed between two casing sheets which at opposing front and rear end parts of the absorbent body have side parts which extend laterally beyond said body on both sides thereof, one casing sheet and the side parts thereof having the same lateral dimensions as the other casing sheet and the side parts thereof, and a lateral distance across longitudinal edges of the side parts on the front end part being the same as a lateral distance across longitudinal edges of the side parts on rear end part,
the opposing front and rear side parts are joined together during manufacture to form a circumferential waist opening and two predefined leg openings of the pants-type diaper or sanitary panty, wherein only a separate piece of material, that is separate from the front and rear side parts by not being integral with the front and rear side parts and which extends between each pair of the opposing front and rear side parts and forms a joint between these side parts such that said joint lies in a plane which is the same plane as the opposing front and rear side parts so that the front and rear side parts are directly attached to a same side of the separate piece of material and the joint will be subjected essentially to shear forces and the front and rear side parts are non-overlapping in the circumferential direction when the article is worn, the separate piece of material made up of only non-elastic material so that the material extending between each pair of the opposing front and rear side parts is non-elastic.
23. A pants-type diaper or sanitary panty, comprising:
an elongated absorbent body enclosed between two casing sheets which at opposing front and rear end parts of the absorbent body have side parts which extend laterally beyond all portions of said body on both sides thereof, one casing sheet and the side parts thereof having the same lateral dimensions as the other casing sheet and the side parts thereof, and a lateral distance between longitudinal edges of the side parts on the front end part being the same as a lateral distance between longitudinal edges of the side parts on rear end part,
the opposing front and rear side parts are joined together during manufacture to form a circumferential waist opening and two predefined leg openings of the pants-type diaper or sanitary panty, wherein a separate piece of material, that is separate from the front and rear side parts by not being integral with the front and rear side parts extends between each pair of the opposing front and rear side parts and a joint is formed between each of these side parts such that said joint lies in a plane which is the same plane as the opposing front and rear side parts so that the front and rear side parts are directly attached to a side of the separate piece of material that faces away from a wearer during use and the joint will be subjected essentially to shear forces when the article is worn, wherein the joint is a mechanical joint of a self-fastening type.
24. A pants-type diaper or sanitary panty, comprising:
an elongated absorbent body enclosed between two casing sheets which at opposing front and rear end parts of the absorbent body have side parts which extend laterally beyond said body on both sides thereof, one casing sheet and the side parts thereof having the same lateral dimensions as the other casing sheet and the side parts thereof, and both casing sheets having a longitudinal length and a lateral width, the lateral width being the greatest at each longitudinal end of the casing sheets;
the opposing front and rear side parts are joined together during manufacture to form a circumferential waist opening and two predefined leg openings of the pants-type diaper or sanitary panty, wherein a separate piece of material, that is separate from the front and rear side parts by not being integral with the front and rear side parts, extends between each pair of the opposing front and rear side parts and forms a joint between these side parts such that said joint lies in a plane which is the same plane as the opposing front and rear side parts so that the front and rear side parts are directly attached to a same side of the separate piece of material, the joint will be subjected essentially to shear forces when the article is worn and the front and rear side parts are spaced from each other to thereby define a predetermined distance between the front and rear side parts as measured along a circumferential direction of the circumferential waist, the separate piece of material is formed of only non-elastic material so that the material extending between each pair of the opposing front and rear side parts is non-elastic.
25. A pants-type diaper or sanitary panty according to claim 24, wherein outside surfaces of the front and rear side parts are attached to a same side of the separate piece of material.
26. A pants-type diaper or sanitary panty according to claim 24, wherein inside surfaces of the front and rear side parts are attached to a same side of the separate piece of material.
27. A pants-type diaper or sanitary panty, comprising:
an elongated absorbent body enclosed between two casing sheets which at opposing front and rear end parts of the absorbent body have side parts which extend laterally beyond said body on both sides thereof, one casing sheet and the side parts thereof having the same lateral dimensions as the other casing sheet and the side parts thereof,
the opposing front and rear side parts are joined together during manufacture to form a circumferential waist opening and two predefined leg openings of the pants-type diaper or sanitary panty,
wherein a separate piece of material, that is separate from the front and rear side parts by not being integral with the front and rear side parts, extends between each pair of the opposing front and rear side parts and forms a joint between the side parts such that said joint lies in a plane which is the same plane as the opposing front and rear side parts,
wherein said separate piece of material lies in said plane such that the front and rear side parts are directly attached to a same side of the separate piece of material and the joint will be subjected essentially to shear forces when the article is worn, and
wherein the separate piece of material joining the front and rear side parts includes two parts formed of the same material, each part of the two parts having two ends, a first end of one part is positioned adjacent to a first end of the other part, and the first ends joined to each other by a mechanical fastener of a self-fastening type, and second opposite ends of each part are joined to a respective front or rear side part.
28. A pants-type diaper or sanitary panty, comprising:
an elongated absorbent body enclosed between two casing sheets which at opposing front and rear end parts of the absorbent body have side parts which extend laterally beyond all portions of said body on both sides thereof, one casing sheet and the side parts thereof having the same lateral dimensions as the other casing sheet and the side parts thereof, and a lateral distance across longitudinal edges of the side parts on the front end part being the same as a lateral distance across longitudinal edges of the side parts on rear end part,
the opposing front and rear side parts are joined together during manufacture to form a circumferential waist opening and two predefined leg openings of the pants-type diaper or sanitary panty,
wherein a separate piece of material, that is separate from the front and rear side parts by not being integral with the front and rear side parts, extends between each pair of the opposing front and rear side parts and forms a joint between these side parts such that said joint lies in a plane which is the same plane as the opposing front and rear side parts so that surfaces of the front and rear side parts which face a wearer during use of the assembly are directly attached to a same side of the separate piece of material and the joint will be subjected essentially to shear forces when the article is worn, and
wherein the separate pieces of material are each comprised of two separate parts which are mutually joined together by a releasable and refastenable fastener means.
Description
TECHNICAL FIELD

The present invention relates to a method of manufacturing an absorbent article in the form of a pants-type diaper or a sanitary panty, beginning with a flat diaper blank which comprises an elongated absorbent body enclosed between two casing sheets which at opposing front and rear end parts of the absorbent body have side parts which extend laterally beyond the absorbent body on both sides thereof, said method comprising the step of folding the blank about a transverse axis so that the end edges of said side parts will lie edge-to-edge. The invention also relates to an absorbent article manufactured in accordance with the method.

BACKGROUND OF THE INVENTION

Present-day all-in-one diapers are being replaced to an ever greater extent with pants-type diapers, or so-called training pants, for slightly older diaper-wearing children. Pants-type diapers have a number of good features. They fit well on the wearer, they are easy to put on and take off with the child in a standing position, they sit firmly in place after having been put onto a child, and conform to the anatomy of the child as the child moves, in a comfortable fashion. Moreover, pants-type diapers resemble conventional underpants and it is easy to understand how they shall be used, thereby in many instances enabling somewhat older diaper-wearing children to perform themselves the simple operations required in putting on the pant diaper.

EP A2-0,320,991 defines a pants-type diaper which is produced by folding a blank of the aforesaid kind in the manner described in the introduction, whereafter the bordering side edges of the side parts are fastened together by ultrasonic welding or gluing. A pants-type diaper manufactured in this way will necessarily have at least two outwardly standing side seams which, when the diaper is worn, are subjected to loads or forces that are directed generally at right angles to the bonded surfaces, i.e. to so-called peel forces. Consequently, the side seams must be sufficiently strong to withstand the forces to which they are subjected, meaning that a high degree of precision is required when joining the surfaces together and also when selecting the materials to be joined. Neither are the seams attractive from an aesthetic point of view, which is a negative feature from a commercial aspect.

SUMMARY OF THE INVENTION

An object of the present invention is to provide a pants-type diaper or a sanitary panty having side seams which from a loading aspect are more advantageous than side seams that are subjected to peeling forces, and which has aesthetically attractive side parts.

This object is achieved in accordance with the invention by means of a method of the kind defined in the introduction which is characterized by placing at least one folded band of flexible material between each pair of front and rear side parts that lie opposite one another in the folded state of the blank, and by fastening the free ends of the band to respective adjacent side parts.

According to one preferred embodiment of the invention, the folded bands are placed on and fastened to the front or rear side parts of the blank prior to folding said blank, and the band is folded in a bellows like fashion prior to fastening the same to the side parts.

This method can also be applied even when the blanks form a continuous string, i.e. prior to separating the individual blanks from said string.

When, for reasons of a production/technical nature, the blanks are separated individually from a continuous string of blanks prior to bringing the side parts together, it is proposed in accordance with the invention that a method of tiethe kind defined in the introduction will include the characterizing steps of folding at least one band of flexible material around each pair of the front and rear side parts of the web which oppose one another in the folded state of said web, and by fastening the free ends of the band to its adjacent side part.

The invention also relates to an absorbent article in the form of a pants-type diaper or sanitary panty, which comprises an elongated absorbent body enclosed between two casing sheets which have at opposing front and rear end parts of the absorbent body side parts which extend laterally beyond said body on both sides thereof, wherein the opposing front and rear side parts are mutually joined, characterized in that a separate piece of material extends between each pair of mutually opposing front and rear side parts and forms a joint between these side parts such that said joint will be subjected essentially to shear forces when the article is worn.

According to one preferred embodiment of the invention, the pieces of material joining the side parts are generally non-elastic and the separate pieces of material are attached to the inner surfaces of the side parts. The separate pieces of material are comprised of two separate parts which are joined together by a releasable and refastenable fastener means, for instance in the form of a row of press studs, projections and recesses, mutually coacting hooks and eyes, adhesive coatings or self-fastening or hook and loop fasteners.

BRIEF DESCRIPTION OF THE FIGURES

The invention will now be described in more detail with reference to the accompanying drawings, in which

FIG. 1 illustrates schematically a plant machinery for manufacturing a pants-type diaper in accordance with the invention and by means of an inventive method;

FIG. 2 illustrates from above a part of the web shown in FIG. 1 in a manufacturing stage immediately prior to folding and joining together the blanks to form pants-type diapers;

FIG. 3 is a sectional view taken on the line III-III in FIG. 2but with the elastic threads 7 in FIG. 2 omitted and glue beads 23 added;

FIG. 4 is a perspective view of a pants-type diaper manufactured in accordance with the inventive method;

FIG. 5 illustrates a bellows-folded band suitable for application on an inventive pants-type diaper blank manufactured by means of the transverse production method, i.e. the absorbent bodies have been placed on a moving web of material with the longitudinal axes of the bodies extending at right angles to the direction of web movement;

FIG. 6 illustrates a bellows-folded band suited for application on an inventive pants-type diaper blank illustrated in broken lines and manufactured in accordance with the longitudinal production method, i.e. the absorbent bodies have been placed on a moving web of material with the longitudinal axes of the bodies extending parallel with the direction of web movement;

FIGS. 7 and 8 illustrate folded bands which include releasable and refastenable fastener means, suitable for application on an inventive pants-type diaper blank; and

FIG. 9 illustrates in perspective a second embodiment of a pants-type diaper which includes the bands of FIG. 7 in its side parts.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

FIG. 1 illustrates schematically the plant machinery for manufacturing pants-type diapers, including a conveyor path 1 by means of which casing material 2 taken from a storage reel 3 is conveyed from left to right in FIG. 1. Located downstream of the reel 3 is a device 4 which lays absorbent bodies 5 at regular intervals on the underlying web of casing material 2. Located downstream of the device 4 is a device 6 which lays elastic elements in a specific pattern onto or immediately above the web of casing material 2. These elastic elements, of which one is shown schematically in by reference numeral 7 FIG. 1 and which are preferably comprised of elastic threads or ribbons, form the waist and leg elastic of the manufactured pants-type diaper. Located downstream of the device 6 are guide rollers 8 which function to guide a second web of casing material 9 onto the first web 2, while downstream of the guide rollers 8, there is located a device 11 which brings the webs of casing material together and fastens the webs to one another at those parts thereof which lie outside the absorbent bodies 5. The plant machinery hitherto described functions in the same way as the plant machinery used to manufacture conventional all-in-one diapers and the composite product leaving the device 11 will be comprised of a continuous string of pants-type diaper blanks which, similar to the all-in-one diapers produced in conventional plants, includes an absorbent body which is enclosed between two casing sheets and also elastic elements. At this stage of manufacture, the pants-type diaper blank differs from a typical diaper blank mainly in that the waist elastic has a different form as will be made more apparent in the following. The devices 4, 6, 8 and 11 are preferably known devices suitable for producing a pants-type diaper blank of the aforesaid kind. Since a detailed description of the construction of these devices is not needed to acquire an understanding of the invention, the devices will not be further described.

Located downstream of the device 11 is a device 12 which functions to attach folded bands 13 to the underlying moving web of mutually connected blanks. The device 12 will preferably include plungers that are operative in pressing glue-coated bands 13 against the casing sheet 9.

FIG. 2 illustrates from above a section of the web of mutually joined blanks subsequent to the web exiting from the device 12. The section illustrated in the Figure includes a complete pants-type diaper blank B and parts of two mutually adjacent blanks A and C. As will be seen from the Figure, the device 6 lays-out a plurality of elastic threads 7 which extend sequentially in the transverse direction of the blank and which form the waist elastic of a manufactured pants-type diaper. The device 6 also lays-out around openings 15 cut from the web elastic threads 14 which form the leg elastic of a manufactured pants-type diaper. The openings are preferably cut from the web when joining the casing sheets together with the aid of some appropriate means, for instance by means of a punch included in the device 11 or located immediately downstream thereof.

The blanks A, B, C include a front edge 16, a rear edge 17, a central part 18 delimited by the opposing long edges of the absorbent body 5 and the extensions of said long edges, front side parts 19, 20 on both sides of the central part 18, and rear side parts 21, 22 which are delimited by the respective front edge 16 and rear edge 17, the openings 15 lying on respective sides of the central part, and the imaginary separation lines between the individual blanks A, B and C, which are shown in dash-dotted lines in FIG. 2. When applicable, the parts 19-22 of the various diapers have been further identified in FIG. 2 with the aid of suffixes A-C, in order to clearly distinguish between corresponding parts of different blanks. As shown in FIG. 3, the bands 13 attached to the side parts 19, 20 are single-folded and are disposed with respective folds extending parallel with the side edges of the side parts, so that those edges of the band that are folded towards one another in said side parts will face one another.

Pants-type diapers are produced from the blanks shown in FIGS. 2 and 3, simply by folding the blanks in the direction indicated by the arrow in FIG. 3, so that the edges 16 and 17 will lie opposite one another, and by fastening the casing sheet 9 to the bands 13 in conjunction therewith. Glue beads 23 are suitably applied to the single-folded bands 13 in conjunction with bringing the edges 16, 17 together. Naturally, the glue beads may instead be applied to the casing sheet 9 on the rear side parts 21, 22 prior to folding the blanks.

The plant illustrated in FIG. 1 includes downstream of the device 11 a device 24 by means of which the web of blanks is folded together and the front and rear side parts of the blanks are joined to one another. The device 24 may include fixed guide means 25 having mutually successively converging side walls, plunger means 26 which intermittently press the rear side parts of the blanks against the front side parts thereof, applicator means 27 for applying glue to the folded bands or to the rear side parts, and fixed guide means 28 having side walls which successively diverge from one another.

The web moving through the guide means 28 is thus comprised of a string of mutually joined pants-type diapers which after exiting from the guide means 28 are separated from one another by means of an appropriate cutting tool 29 and conveyed by suitable conveying means 30 to a packaging station.

FIG. 4 is a perspective view of a pants-type diaper manufactured in accordance with the aforedescribed method. A pants-type diaper is intended to be put on in the same way as a pair of underpants and is characterized by an elasticated waist part which can be stretched so that the diaper can be drawn readily over the wearer's hips when putting on or taking off the pant diaper, and the elasticity of which is such that a worn pant diaper will be held securely in position by the contraction forces acting in the waist part of the diaper. In order to fulfil these functional requirements while, at the same time, restricting the number of production sizes, the pants-type diaper will preferably have a stretchability which is greater than 80%, i.e. the circumference of the waist part shall be 1.8 times the extension of the circumference of the waist part of a removed pant diaper in a non-stretched state. The total contraction force in the waist part, i.e. the sum of the force contributed by elastication provided in the front part, the rear part and the side parts, will preferably exceed 3N.

The pants-type diaper illustrated in FIG. 4 is constructed in the same way as the pants-type diaper described in Swedish Patent Application No. 9200663-4, and includes an absorbent body 5 enclosed between an inner and an outer casing sheet 9 and 2 respectively. The inner casing sheet 9 is liquid-permeable and is comprised, for instance, of non-woven material compiled from fibres of polyethylene, polypropylene, polyester or mixtures thereof. Viscose fibres may also be used. It is also conceivable to form the inner casing sheet from a perforated plastic sheet, for instance a perforated polyethylene sheet. The outer casing sheet 2 is liquid-impermeable or at least hydrophobic and may, for instance, comprise a sheet of polyethylene or nonwoven material which has been coated with or laminated with polyolefins, so as to be made liquid-impermeable or at least hydrophobic. For aesthetic and psychological reasons, the outer casing sheet 2 may be comprised of two layers, an inner liquid-impermeable layer and a layer of fabric-like material disposed outside the inner layer. The wearer will then see and feel the pant diaper as a fabric garment rather than as a plastic garment. When the outer casing sheet has this latter construction, it is not necessary for the liquid-impermeable sheet to have the same extension as the fabric-like sheet, but may be smaller than said sheet, for instance liquid-impermeable casing material can be omitted from the side parts of the pant diaper.

The absorbent body 5 may contain cellulose fluff pulp with or without an admixture of particles of so-called superabsorbent material and/or thermoplastic melt fibres, and may be comprised of one or more layers.

The waist part 4131 of the pants-type diaper illustrated in FIG. 4 includes a plurality of sequentially mounted elastic threads 7, each of which extends transversely around the circumference of the waist part. In this way, there is formed a relatively broad elastic waist part. As will be understood, elastic ribbons, bands or the like may be used instead of elastic threads, or other elastically stretchable material can be used, such as elastically stretchable plastic film, an elastically stretchable nonwoven material, or like material.

Similar to a pair of underpants, the pants-type diaper illustrated in FIG. 4 has a waist opening and two leg openings, which are provided with leg elastic in a conventional manner. The pant diaper is put on by inserting the legs of the wearer through the leg openings and then drawing the pant diaper up over the wearer's hips. The contraction forces exerted by the elastic elements at the waist opening, i.e. at the uppermost part of the waist part 4131, are preferably greater than the contraction forces exerted in the remainder of the waist part. This will ensure that the pant diaper will remain seated in its intended position, even when the absorbent body is full of urine.

Thus, when the pants-type diaper is worn, the joint between the bands 13 and the casing sheet 9 will be affected essentially only by forces that act in the circumferential direction of the waist part, said joints therewith solely being subjected to shear forces. As a result of the construction of the inventive pant diaper, the joint will not be subjected to peeling forces that are unfavourable from a loading aspect. Consequently, the requirements placed on the properties of these joint are much less stringent than the requirements placed on the joint of known pants-type diapers. The joint produced by the inventive method are also attractive from an aesthetic aspect and fulfil the purpose of imitating conventional underpants in a much better manner than the earlier known pants-type diapers.

The inventive method also provides certain technical manufacturing advantages over the known method of joining together the side parts of a pants-type diaper taught by the aforesaid EP-A2-0,320,991. When manufacturing the known pants-type diaper, a greater degree of precision is required when joining the edges of the side parts together, both with regard to folding the blanks so that the side edges of the front and rear side parts will lie edge-to-edge, and with regard to the actual joining process, in which a welding or gluing unit must be guided with the same precision. When practicing the inventive method, it is immaterial from a functional aspect whether or not the bands are slightly displaced from their intended position on the front side parts when mounting the bands on the underlying web or string of blanks, or whether or not the glue beads 23 (FIG. 3) are slightly displaced laterally from their intended position subsequent to said application, provided of course that the bands are dimensioned to permit such deviations. The same advantages are, of course, obtained when other methods, such as ultrasonic or heat-sealing methods are used to fasten the bands and casing material together instead of glue. Because the joins are only subjected to shear forces, there is a greater freedom in the type of joint chosen, for instance the joint used may be a mechanical joint of a self-fastening type.

Another advantage is that the circumferential extension of the bands 13 can be varied to a large extent, and if desired this extension can be made sufficiently large to enable the side parts of the diaper to be comprised almost completely of said bands. This construction will reduce the waste of casing material, since the lateral extension of the openings in the string or web of blanks will be reduced to a corresponding extent. However, in the case of this construction, it is not possible to attach the bands in a single-folded state to the pants-type diaper blank, since the bands would then be severed when cutting the individual blanks from the blank string. In order to enable bands of greater extension in the circumferential direction of the manufactured diaper to be applied, it is necessary to fold the bands in a bellows fashion prior to application, so as to restrict the extension of the bands in the transverse direction of the blanks. FIG. 5 illustrates an example of a bellows-folded band 3141 which can be applied to a pants-type diaper blank in the same way as the bands 13.

The aforedescribed method of mounting the bands on the side parts of a pants-type diaper blank can be applied in both transverse and longitudinal production of pants-type diapers, although with the difference that in the case of longitudinal production, it is necessary to cut the individual blanks from the blank string prior to folding the rear side parts onto the front side parts.

When the blanks are advanced in the form of individual blanks, the bands can be applied to the casing sheet 2 instead of to the casing sheet 9, by first fastening one free end of the bands to the front side parts of the blank, and thereafter folding the blank. The bands, which are initially not folded and flat, are then folded in over the rear side parts of the folded blank and fastened thereto. Naturally, it is also possible to apply the flat bands to the front side parts of the individual, flat blanks, whereafter the blank and then the bands are folded, wherewith the bands will be attached to the inner surfaces of the front side parts and the outer surfaces of the rear side parts.

In this regard, it is pointed out that the bands may, of course, be fastened to the front and the rear side parts in a reverse manner to that described, i.e. the bands may be first fastened to the rear side parts and then to the front side parts.

FIG. 6 illustrates a band 32 which can be fastened to a ready folded blank, by passing the blank side parts that have been folded onto one another between the free edges of the band 32 and pressing these edges firmly onto the side parts, by application of an external force. When the band 32 is unfolded, the joint lies in a plane which is the same plane as the opposing front and rear side parts in that outside surfaces of the front and rear side parts are attached to a same side of the band and the joint will be subjected essentially to shear forces when the article is worn.

According to one variant of the method described with reference to FIGS. 1-4, the folded bands can be passed in between the front and the rear side parts during the final stage of folding the blanks and fastened thereto in one single stage.

As mentioned in the aforegoing, pants-type diapers have a number of good features, but also some drawbacks. It is difficult to change a pants-type diaper with the wearer in a lying position, and requires the removal of a garment worn outside the pant diaper when making the change. Neither can a used pants-type diaper be rolled up and sealed in the same way as an all-in-one diaper. Furthermore, the diaper wearer is liable to be dirtied when removing a used pant diaper containing feces.

These drawbacks can be overcome in a particularly simple way with an inventive pants-type diaper, simply by using bands that are comprised of two parts which are joined together by means of a releasable and refastenable fastener means. FIGS. 7 and 8 are respective cross-sectional and side views of two such bands 33 and 34, while FIG. 9 illustrates a pants-type diaper provided with a band 33. The band 33 is comprised of two parts 35, 36 which are mutually joined by a row of projections 37 projecting from the part 35 and passing through a row of openings formed in the part 36. This enables the pants-type diaper illustrated in FIG. 9 to be removed and replaced without needing to fully remove trousers, pants or like garment worn outside the pant diaper, by loosening the band parts 35, 36 from one another so that either the rear part or the front part can be passed between the legs of the wearer. A replacement pants-type diaper can thereafter be put on by loosening the band parts of said pants-type diaper from each other, whereafter the front or rear part of the replacement pants-type diaper is inserted between the legs of the wearer. The two band parts are then fastened together, by inserting the row of projections on one band part through the row of openings in the other part, whereafter the pants-type diaper is drawn up to its correct wearing position in the same way as a pair of underpants, unless this has already been done when refastening the replacement pant diaper.

FIG. 8 illustrates schematically a band 34 which is comprised of two parts 38, 39 which are mutually joined by means of a mechanical fastener means 40, for instance a self-fastening or hook and loop band. The fastening means illustrated in FIGS. 7-9 merely represent examples of suitable fastener devices and it will be understood that the pants-type diaper shown in FIG. 9 can be provided with a number of other types of fasteners lying within the expertise of a normal person skilled in this art. For instance, adhesive fasteners can be used, and also other types of mechanical fasteners other than those described, such as buttons and buttonholes, hooks and eyes, etc.

Although the invention has been described and illustrated solely with reference to pants-type diapers, it will be understood that the invention can also be applied to sanitary panties, i.e. panties in which absorbent bodies for absorbing menstrual fluids or light incontinence discharges are integrated.

It will be understood that the described embodiments can be modified within the scope of the invention. For instance, the absorbent body may have a form different to that described and may include several layers, which in turn means that the described plant for manufacturing pants-type diapers in accordance with the invention will be modified correspondingly. Furthermore, the pants-type diaper blanks can be folded and the front and rear side parts of the blanks brought together with the aid of means other than those described. The individual pants-type diapers can be cut from the continuous web of blanks in conjunction with bringing the front and the rear side parts of the blanks together, instead of in a separate following stage. Furthermore, more than one band can be used to fasten the mutually opposing front and rear side parts. The invention is therefore restricted solely by the scope of the following claims.

Patent Citations
Cited PatentFiling datePublication dateApplicantTitle
US1458082 *12 Dec 19225 Jun 1923Stein JacobVentilated sanitary garment
US149404427 Apr 192313 May 1924Ward AbrahamCatamenial garment
US1833960 *1 May 19301 Dec 1931Alsop Bertha SBaby's diaper
US1998140 *12 Oct 193316 Apr 1935Loew Arthur MGarment
US2013436 *13 Jul 19333 Sep 1935Edith C WallGarment
US2085425 *15 Jul 193629 Jun 1937Nash Goodwin MarySun suit
US2088800 *15 Jun 19343 Aug 1937Malouf William BUndergarment
US2101453 *31 Jan 19367 Dec 1937Rhodes Margerie CDiaper
US2119610 *30 Sep 19357 Jun 1938Harley N GatesDiapering garment
US2122873 *29 Jan 19385 Jul 1938Shuster Sidney MBody garment with detachable sleeve
US2141105 *11 Aug 193620 Dec 1938John A EllerDiaper
US2165561 *17 Mar 193811 Jul 1939Marcus HarryCombination shorts and sanitary belt
US2179675 *17 Mar 193814 Nov 1939Stadium Mfg Co IncGarment
US2257426 *28 Sep 193830 Sep 1941Isadore NeimanBifurcated garment
US2272830 *8 Jun 194010 Feb 1942Harry BrodySanitary temporary panty
US2366031 *6 Aug 194226 Dec 1944Allan JamesUnderpants or shorts
US2408723 *19 Mar 19458 Oct 1946Arpin Helen GUndergarment
US2411129 *26 Apr 194512 Nov 1946Panty Zip IncGarment
US2419867 *27 Jan 194429 Apr 1947Edward WoodmanGarment
US2452129 *26 Apr 194726 Oct 1948Irving KaldorSanitary garter belt
US2463309 *5 Jan 19461 Mar 1949Sadie PrinceBathing suit
US2471048 *12 May 194824 May 1949Anthony W TerchickBaby garment
US2477914 *6 Apr 19482 Aug 1949Robert O WebbPinless adjustable diaper
US2525170 *25 Aug 194810 Oct 1950Bertha EhrlichUndergarment
US2574861 *23 Nov 194613 Nov 1951National Bank FirstWoman's petticoat
US259612720 Mar 195013 May 1952Gladys M CarmeanSanitary belt
US267580517 Mar 195320 Apr 1954 Infant s garment
US2680087 *16 Jun 19501 Jun 1954Talon IncMethod of installing a slide fastener in a garment
US2798489 *20 Oct 19559 Jul 1957Behrman MayesProtective garment
US294455013 Jul 195412 Jul 1960Magid Sidney HThermoplastic garments
US3187343 *13 Jun 19638 Jun 1965Perfect Knit Togs IncChild's garment
US3196511 *15 Jul 196327 Jul 1965Kintner Mikldred MFastening means
US323588319 Aug 196322 Feb 1966Larry SalamonUndergarment construction
US3452753 *10 Oct 19661 Jul 1969Mabel M SanfordIncontinence device
US3566870 *23 Oct 19682 Mar 1971Benjamin Mina IArticle of personal hygiene
US3605665 *29 Sep 196920 Sep 1971Florence O DonaldInstallation of slide fasteners
US3611440 *24 Apr 197012 Oct 1971Zamist SophieExpendable non-woven wearing apparel
US3642001 *27 Jul 197015 Feb 1972Reinhardt N SabeeDisposable diaper or the like
US3771524 *3 Jan 197213 Nov 1973H RalphDiaper garment with interleaved liner and retainer
US3772120 *5 Nov 197113 Nov 1973Joa C IncMethod for applying attaching tapes to pads
US3800330 *22 Feb 19722 Apr 1974D BowcutAction jeans
US3823445 *18 Jul 197216 Jul 1974Textron IncAdhesive slide fastener installation
US382878517 Jul 197213 Aug 1974Jung Prod IncLiner for incontinent pants
US386627512 Apr 197318 Feb 1975Textron IncSlide fastener installation
US387438619 Mar 19741 Apr 1975Union Carbide CorpPressure-sensitive tape fastener for disposable diapers
US388338126 Jun 197313 May 1975Textron IncSlide fastener installation and method and slide fastener package for forming the same
US390123918 Jul 197426 Aug 1975Johnson & JohnsonDisposable diaper with permanently attached adhesive tabs and permanently attached cover strips
US4137859 *11 May 19776 Feb 1979Yoshida Kogyo K KSlide fastener and a method of attaching the same to a garment
US41457637 Dec 197627 Mar 1979Abrams Joe LSeparable medical undergarment
US4186744 *31 Oct 19775 Feb 1980Johnson & JohnsonSeparability member to allow disposable diaper openings and re-fastenings
US4205679 *20 Apr 19783 Jun 1980Johnson & JohnsonDisposable undergarment
US42443685 Mar 197913 Jan 1981Gilman Brothers Inc.Incontinent garment
US4259957 *21 Mar 19787 Apr 1981Colgate-Palmolive CompanyFastening means for diapers
US4315508 *31 Mar 198016 Feb 1982Kimberly-Clark CorporationSelf-centering multiple use garment suspension system
US4345597 *12 Dec 197924 Aug 1982Johnson & Johnson Baby Product CompanyDiaper with resealable tape closure
US4404243 *3 Aug 198213 Sep 1983Reeves Bros., Inc.Fasteners; carpets; closures
US4523333 *4 Nov 198318 Jun 1985The Procter & Gamble CompanyDisposable bib having tape-tab fastener
US455524425 Jul 198326 Nov 1985The Procter & Gamble CompanyWaste-containment garment having absorbent body and reuseable side-bridging fastener fitments
US4581772 *28 Mar 198415 Apr 1986Smith Alice GTraining panty
US461068029 Apr 19859 Sep 1986Lafleur Ruby SDisposable training panty
US461068131 May 19859 Sep 1986Kimberly-Clark CorporationDisposable underpants having discrete outer seals
US461702225 Jan 198514 Oct 1986Beghin-Say S.A.Disposable hygienic article with removable belt
US4638509 *23 Sep 198527 Jan 1987Rene CharronProtective outer garment for divers
US4641381 *10 Jan 198510 Feb 1987Kimberly-Clark CorporationDisposable underpants, such as infant's training pants and the like
US4670012 *15 Jul 19852 Jun 1987Weyerhaeuser CompanyDiaper or incontinent pad having pleated attachment strap
US46988558 May 198613 Oct 1987Josephine HicksDisposable try-on's
US4699621 *6 Sep 198513 Oct 1987Kimberly-Clark CorporationForm-fitting self-adjusting disposable garment with anchored waist and leg elastics
US469962221 Mar 198613 Oct 1987The Procter & Gamble CompanyDisposable diaper having an improved side closure
US47011766 Sep 198520 Oct 1987Kimberly-Clark CorporationForm-fitting self-adjusting disposable garment with fixed full-length fasteners
US472680710 Apr 198623 Feb 1988Weyerhaeuser CompanyDiaper with elastic margins
US473562215 Jan 19875 Apr 1988Acuff Andila CDisposable training panties
US47399107 Oct 198626 Apr 1988Kimberly-Clark CorporationApparatus and method for inverting a child's training pant or the like
US47432397 Nov 198610 May 1988Cole Shelley KDisposable brief having an area of relatively thin absorbent material and an area of relatively thick absorbent material
US4747846 *3 Apr 198731 May 1988Kimberly-Clark CorporationStretchable disposable absorbent undergarment
US4771483 *13 May 198520 Sep 1988Boussac Saint Freres B.S.F.Pants having an elastic belt, and process for the manufacture thereof
US483473814 Jul 198830 May 1989Kimberly-Clark CorporationDisposable garment having elastic outer cover and integrated absorbent insert structure
US4834820 *19 Jul 198830 May 1989Star Rubber Kogyo Kabushiki KaishaMethod for producing tape for putting on disposable diaper
US489556925 Aug 198723 Jan 1990Kimberly-Clark CorporationFastening system for a disposable absorbent garment having a tailored seam
US49098043 May 198820 Mar 1990Douglas Sr HermanChild's toilet training pants
US4920575 *18 Jan 19891 May 1990Bodigard Technologies, Inc.Protective garment material and construction
US4938757 *27 Jun 19893 Jul 1990Kimberly-Clark CorporationDisposable training pant or incontinence garment
US4972525 *20 Oct 198927 Nov 1990Hwang Ying TehUnderpants with smooth sides
US4993077 *8 Mar 199019 Feb 1991Robison Maurice LMulti-layer
US501907320 Dec 198828 May 1991Kimberly-Clark CorporationDisposable diaper with improved mechanical fastening system
US5053028 *10 Oct 19891 Oct 1991Minnesota Mining And Manufacturing CompanyDisposable diaper with improved hook and loop fastener system
US506442130 Apr 199012 Nov 1991Rhonda TracyDisposable diaper with padded waistband and legholes
US507485424 Aug 199024 Dec 1991The Procter & Gamble Co.Disposable undergarment having a break-away panel
US508565519 Jul 19904 Feb 1992Avery Dennison CorporationCohesive tape system
US50856585 Sep 19894 Feb 1992Percutaneous TechnologiesNeurosurgical pathological tissue removing device
US508725320 Jun 198611 Feb 1992Cooper Rosanna MCombination diaper training pant for adults and children
US514748716 Aug 199115 Sep 1992Uni-Charm CorporationMethod of manufacturing disposable underpants by applying annular adhesive zones to the backsheet and top sheet for retaining elastic for leg holes
US5170505 *12 Nov 199115 Dec 1992Rohrer Nancy DExpandable children's clothing
US517667113 Dec 19905 Jan 1993Kimberly-Clark CorporationFastening system for disposable diaper with disposability feature
US519600022 Aug 199123 Mar 1993The Proctor & Gamble CompanyAbsorbent article with dynamic elastic waist feature comprising an expansive tummy panel
US5204997 *15 Jun 199227 Apr 1993Uni-Charm CorporationDisposable garments of pants type
US521364521 Apr 199225 May 1993Uni-Charm CorporationMethod for attachment of elastic members around leg-holes of disposable garments
US526977627 Mar 199114 Dec 1993Paragon Trade Brands, Inc.Disposable diaper with refastenable mechanical fastening system
US532427922 Jul 199228 Jun 1994Paragon Trade Brands, Inc.Disposable diaper with refastenable mechanical fastening system
US534042411 Dec 199223 Aug 1994Uni-Charm CorporationMethod for making disposable pants
US536645320 Aug 199322 Nov 1994Kimberly-Clark CorporationNewborn's growth adjustable absorbent diaper having variable overlapping and non-overlapping ears
US537063421 Sep 19936 Dec 1994Kao CorporationDisposable diaper
US5374262 *30 Dec 199220 Dec 1994Kimberly-Clark CorporationAdjustable garment attachment system
US5386595 *15 Jul 19947 Feb 1995Kimberly-ClarkGarment attachment system
US5411498 *29 Jun 19942 May 1995Kimberly-Clark CorporationStretchable shaped absorbent garment
US5462540 *20 Jul 199431 Oct 1995Avery Dennison CorporationTabless diaper with a multi-component tape fastener
US553173214 Jun 19942 Jul 1996Minnesota Mining And Manufacturing CompanyAdjustable fit disposable training pant or incontinence garment having disposable means
US5591155 *2 Feb 19967 Jan 1997The Procter & Gamble CompanyDisposable training pant having improved stretchable side panels
US560753710 Oct 19954 Mar 1997The Procter & Gamble CompanyMethod for making a flangeless seam for use in disposable articles
US562873816 May 199413 May 1997Uni-Charm CorporationWelded disposable diapers
US566263810 Oct 19952 Sep 1997The Procter & Gamble CompanyFlangeless seam for use in disposable articles
US5779831 *8 Dec 199514 Jul 1998The Procter & Gamble CompanyMethod and apparatus for making an undergarment having overlapping or butt-type side seams
US583020611 Apr 19953 Nov 1998Molnlycke AbPants-type diaper or sanitary panty
US585557411 Apr 19955 Jan 1999Sca Hygiene Products AktiebolagMethod of manufacturing a pants-type diaper or a sanitary panty, and one such absorbent article
US60426734 Mar 199828 Mar 2000The Procter & Gamble CompanyMethod for making a flangeless seam for use in disposable articles
US621038811 Apr 19953 Apr 2001Sca Hygiene Products AbMethod for manufacturing a pants-type diaper or sanitary panty, and such an article
US6328725 *26 Nov 199611 Dec 2001Sca Hygiene Products AbMethod of producing reclosable absorbent garments and absorbent garments obtained thereby
US6395115 *16 May 200028 May 2002Kimberly-Clark Worldwide, Inc.Process for making a garment with dual refastenable sides and butt seams
US6409858 *16 May 200025 Jun 2002Kimberly-Clark Worldwide, Inc.Process for making a garment with refastenable lap seams
US6432243 *16 May 200013 Aug 2002Kimberly-Clark Worldwide, Inc.Process for making a garment with dual refastenable lap seams
US646134421 Dec 20008 Oct 2002Sca Hygiene Products AbMethod for manufacturing a pants-type diaper or sanitary panty, and such an article
US2003013519028 Mar 200317 Jul 2003Molnlycke AbA method for manufacturing a pants-type diaper or sanitary panty, and such an article
USH16743 Feb 19955 Aug 1997Ames; Kathleen QuinlanConvertible belted diaper
USRE21624 *19 Nov 1940 Garment construction
AU1999883A Title not available
CO296601A Title not available
EP0187728A29 Jan 198616 Jul 1986Kimberly-Clark CorporationDisposable underpants, such as child's training pants and the like
EP0320989B116 Dec 198827 Apr 1994Kimberly-Clark CorporationMethod and apparatus for making a disposable incontinence garment or training pant
EP0320991A216 Dec 198821 Jun 1989Kimberly-Clark CorporationA disposable incontinence garment or training pant
EP0417766A112 Sep 199020 Mar 1991Uni-Charm CorporationMethod for manufacturing disposable garments
FR2331975A1 * Title not available
FR2624353A1 * Title not available
GB947346A Title not available
GB1356465A Title not available
GB2035053A * Title not available
GB2107172A Title not available
GB2129689A Title not available
GB2130888A Title not available
GB2144637A Title not available
GB2244422A Title not available
GB2245149A Title not available
GB2267024A Title not available
JPH04828A Title not available
JPH059530A Title not available
JPH0428363A Title not available
JPH0780023A Title not available
JPH03176051A Title not available
JPH03195555A * Title not available
JPH03268756A Title not available
JPH04144558A * Title not available
JPH04161152A Title not available
JPH05293135A Title not available
JPS63243307A Title not available
PL170375B1 Title not available
WO1993017648A11 Mar 199316 Sep 1993Moelnlycke AbAbsorbent pants-type diaper
WO1993024085A1 *29 Apr 19939 Dec 1993Masaharu NishikawaDisposable training pant having improved stretchable side panels
WO1994001070A128 Jun 199320 Jan 1994Du PontProcess for elastic nonwoven undergarment
WO1995027461A111 Apr 199519 Oct 1995Gunilla HedlundA method of manufacturing a pants-type diaper or a sanitary panty, and one such absorbent article
Non-Patent Citations
Reference
1 *Definitions of "a", "tape", "fabric" and "cloth", Merriam-Webster OnLine.
2Interlocutory Decision issued in Opposition proceedings in corresponding application No. EP 0 755 273, dated Nov. 18, 2009.
3Minutes of the Oral Proceedings before the Opposition Division issued in corresponding application No. EP 0 755 273, dated Nov. 18, 2009.
4Notice of Opposition issued in corresponding European Patent No. 0755237 B1.
5 *Translation of JP3-176051-21pgs.
6 *Translation of JP3-17605121pgs.
Classifications
U.S. Classification604/392, 156/164, 156/204, 604/396, 604/393, 604/386, 156/66, 604/387
International ClassificationA41H37/00, A61F13/20, A44B19/00, A61F13/56, A61F13/15, A61F5/44, A61F13/49
Cooperative ClassificationA61F13/496, A61F13/5622, A61F13/56, A61F2013/49028
European ClassificationA61F13/56, A61F13/496, A61F13/56C