KR20000010623A - Adaptable sanitary napkin - Google Patents

Abstract

PURPOSE: Absorbent articles are rendered adaptable at least in one direction to reduce wrinkling or folding of the absorbent article upon application to the undergarment and provide more consistently fitting articles despite the variation in undergarment dimensions. CONSTITUTION: Absorbent articles, particularly sanitary napkins or panty liners, are made for joining to the undergarment of a wearer. Such articles are typically joined to the undergarment of a wearer while the wearer has the undergarment lowered down and stretched between the legs. Underpants are available in different sizes according to the dimension of the wearer of such articles. Therefore the same wearer will apply identical absorbent articles to undergarments of differing dimensions and may attempt to apply the article without regard to such difference.

Description

Adjustable sanitary napkin

Absorbent products that are worn during the wearer's undergarment are known to be able to fundamentally improve absorbent products if their position, structural integrity and specific controllability to specific wear conditions can be assured each time during use of such products. In this regard, many improvements have been made to provide extensible, elastically extensible, highly flexible or, more generally, deformable absorbent articles that can produce products that have the ability to respond to movement during wearer use.

Accordingly, it is taught in the prior art to utilize the above mentioned elements to assure adequate controllability of disposable absorbent products, such as sanitary napkins or panty liners, to produce products that are comfortable and perform well during use. Thus, products have been developed for a long time that are adapted to movement during use. However, absorbent articles are typically not provided directly to the wearing position in use, but are attached to the undergarment of the wearer before the undergarment is pulled to its final wearing position. Typically the undergarment is placed in a particular installation or application position and the undergarment is not similar to being pulled into the wearing position.

Typically, a sanitary napkin or panty liner attaches to the undergarment while the undergarment is in the pulled position between the wearer's legs. Conventional undergarments can be stretched and retracted, ie elastically stretched to provide good comfort and adequate controllability during the wearing of undergarments and the use of such undergarments. The undergarment pulled down when the disposable absorbent article is applied to the undergarment may be in an extended form. This may have several effects at the beginning of the period of use, including crumpled and blunted results in unacceptable controllability.

Another problem with disposable absorbent articles attached to undergarments is the fact that any and the same wearer typically uses the same absorbent articles as other parts of the undergarment. However, even when used by the same wearer, different parts of the undergarment typically vary in shape and size due to the shape, material, multiple sizes of a particular undergarment type produced by the supplier of undergarment, and their individual production variations. Has This is because the same wearer tends to apply the same absorbent article to undergarments that have basically different dimensions, especially with different crotch widths (ie, the closest distance between the right and left leg openings of the panties). The wearer would normally expect to achieve the same results at each time regardless of the differences induced by the individual wearers.

A single wearer is typically considered to attempt to obtain the same applied appearance of a disposable absorbent article that is independent of deformations in his / her undergarment. For example, for undergarments with wide crotch widths, the individual absorbent articles may be stretched more than for undergarments with narrow crotch widths. This problem can be clearly discussed by imparting extensible absorbent products. However, extensibility, especially elastic (ie, stretchable) extensibility, will be produced under specific but different stress conditions at the end when the product is finally used at the location of use.

Thus, the product will perform absorbency, leakage or comfort and conformity that depends differently on the main properties, namely the size differences found in the undergarment of the particular wearer of such product. The problem of performance change of the dependence of the individual wearer on the change of the garment size can result in disposable absorbent articles that are unacceptable for the individual wearer. The absorbent article preferably acts consistently or at least as consistently as possible with respect to deformations usually found between different shapes and sizes of undergarments that can be found on the individual wearers of such articles.

It is therefore an object of the present invention to provide a disposable absorbent article, in particular a sanitary napkin or panty liner, which can provide good controllability after carrying out the usual application procedure. In particular, it is an object of the present invention to provide an absorbent article having durability according to the movement and stress of the undergarment in order to maintain the wearer proximity of the undergarment itself. In particular, it is an object of the present invention to provide an absorbent product which may be suitable for initial application with the size difference found between different undergarments.

The present invention relates to absorbent articles, in particular sanitary napkins or panty liners, which are manufactured for bonding to the undergarment of the wearer. Such products are typically coupled to the wearer's undergarment while the wearer has an undergarment stretched between the legs. The undergarment is typically a pair of elastic, woven or woven panties. The panties are available in different sizes depending on the wearer's dimensions of these products. However, the undergarment dimensions of individual wearers can vary widely because of the need to fit a single size of undergarment to physical variations of these user groups as well as differences in shape, fabric, and desired comfort. Thus, the same wearer will apply the same absorbent article to undergarments of different dimensions and will attempt to apply the article regardless of these differences. According to the present invention, the absorbent article provides controllability in more than one direction when applied to the undergarment, thereby reducing the wave shape or folding of the absorbent article and providing a more uniform product despite the change in the dimension of the undergarment. .

The present invention relates to an absorbent article bonded to a wearer's undergarment during use. The article has a longitudinal axis and a transverse or intersecting axis and includes three main elements, a liquid transmissive top sheet, a back sheet which forms an outer surface in contact with the undergarment during use, and is inserted between the top sheet and the back sheet. And an absorbent core. The absorbent article also has panty fastening means provided on the outer surface of the backsheet for bonding the article to the undergarment of the wearer. The article according to the invention is shrinkable in a direction parallel to the longitudinal axis or in a direction parallel to the transverse axis or in one or more combinations thereof. Since the controllability of undergarments is important in a direction substantially parallel to the transverse axis of the disposable absorbent article, these are preferred embodiments of the present invention.

Particularly preferred disposable absorbent articles are sanitary napkins or panty liners having a maximum thickness of less than 5 mm, preferably less than 2 mm. In one embodiment according to the invention, the entire absorbent article comprising the topsheet, the backsheet and the absorbent core is corrugated or corrugated with corrugations or corrugations parallel to the longitudinal axis of the absorbent article.

The absorbent article according to the invention may comprise a release liner that protects the panty fixation means prior to use of the article. If the release liner is almost non-extensible and non-shrinkable, it may be placed on a corrugated or corrugated absorbent product and corrugated or wrinkled during manufacture, packaging, and transportation of the absorbent product until the release liner is used upright prior to installation of the absorbent product in the undergarment. It is particularly desirable to protect the

As long as one or more inelastically extending element (s) are provided as corrugated or corrugated substantially parallel to the longitudinal axis of the product, the major elements (topsheet, backsheet and absorbent core) of some or all absorbent products are controlled. It is elastically extensible beyond the limits of the possibilities. This will provide a disposable absorbent article with the desired controllability and will also provide elasticity to the article. Thus, particularly preferred embodiments of the present invention are elastically extensible, both individually and in combination, when all the major elements of the article are mainly the top sheet, the absorbent core and the back sheet, while the entire absorbent article is in the longitudinal direction of the absorbent article. Corrugated or wrinkled with corrugations or corrugations almost parallel to the axis.

In a particularly preferred embodiment according to the invention, the corrugation or pleats as a means of imparting controllability of the absorbent article is provided with a pressure sensitive adhesive in which the panty fastening means are only preferably provided as corrugated or corrugated outer contact surfaces of the backsheet.

The present invention will be described with reference to a sanitary napkin or pantyliner. However, it is equally well applicable to sanitary napkins or adult incontinence products worn on undergarments, and bonded to undergarments during wear of absorbent articles.

Absorbent articles according to the present invention typically comprise three main components: a liquid permeable topsheet, a liquid impermeable backsheet and an absorbent core. The absorbent core is enclosed by the backsheet and the topsheet, wherein the article is worn such that the exposed surface of the topsheet contacts the wearer of the absorbent article, while the exposed surface of the backsheet contacts the undergarment, and the article is a panty. By means of fastening attachment means. Typically this is an adhesive but can also be a mechanical attachment.

The present invention relates to the controllability of a product. The degree of controllability is determined by its individual amount of elongation, which is treated to provide the selectivity and shrinkage of the material relative to the components of the product, as mentioned above. In order to obtain controllability according to the present invention, the choice of the type, amount and treatment of the raw material should be equivalent to other desired properties of the absorbent product, such as absorption capacity, absorption rate and surface dryness on the exterior of the topsheet during use, for example. It will be apparent to those skilled in the art.

Thus, the following description of the main ingredient materials of typical absorbent articles will provide a number of product variants that meet the shrinkage requirements in accordance with the present invention.

In addition to controllability, absorbent articles according to preferred embodiments of the present invention are elastically stretchable. As used herein, the term “elastically stretchable” will tend to restore the product to its non-extension or non-extension (or “original” size) when the stretching force is removed. However, it is not necessary to recover in all directions to its unextended size. If the absorbent article is elastically stretchable, it can stretch in one or two directions (non-parallel) in the plane of the article, ie essentially parallel to the garment contact surface.

Materials for shrinkable and elastically stretchable products may themselves be elastic or processed to provide elastic extensibility. In particular, in elastic backsheet materials, filament materials in combination with elastic topsheet materials, elastic strands, yarns or webs, as well as corrugated, corrugated or ring rolls of such materials can be used herein. Suitable materials and methods are known in the art and are described, for example, in U.S. Patent Application Serial No. 08/04 of February 4, 1994, which is specifically mentioned to facilitate the selection of materials when stretchable absorbent products according to the invention are produced. 192240 is described in detail.

In the following, non-limiting embodiments of the principal elements of an absorbent article that can be used in shrinking and preferably elastically extensible, non-extending designs are described.

Absorption Core

The absorbent core typically comprises (a) optionally a first fluid distribution layer; (b) optional but preferably a second fluid distribution layer; (c) a fluid storage layer; (d) a fibrous ("dust") layer optionally underlying the storage layer; And (e) other optional ingredients.

a. First fluid distribution layer

One optional component of the absorbent core according to the invention is the first fluid distribution layer. The first fluid distribution layer typically lies below the topsheet and is in fluid communication. The topsheet transports the captured physiological fluid to the first distribution layer for ultimate distribution to the storage layer. Transport of the fluid through the first distribution layer occurs along the length and width directions as well as the thickness of the absorbent article.

b. Optional second fluid distribution layer

A further preferred but preferred component of the absorbent core according to the invention is the second fluid distribution layer. The second distribution layer typically lies below the first distribution layer and is in fluid communication. The purpose of this second distribution layer is to easily capture fluid from the first distribution layer and to quickly transport it down the storage layer. This helps to make full use of the fluid capacity of the underlying storage layer.

c. Fluid storage layer

Positioned in fluid communication and typically lying below the first or second distribution layer is a fluid storage layer comprising a particular absorbent gelling material and / or other absorbent material, which may form a carrier matrix for the absorbent gelling material. Absorbent gelling materials are commonly referred to as "hydrogel", "superabsorbent" "hydrocolloid" materials. Absorbent gelling materials absorb such fluids upon contact with aqueous fluids, especially aqueous body fluids, and thus form hydrogels. These absorbent gelling materials typically can absorb large amounts of aqueous body fluids and can also retain these absorbed fluids under controlled pressure. These absorbent gelling materials are typically in the form of discontinuous, non-fibrous particles.

The fluid storage layer may only comprise absorbent gelling materials, or these absorbent gelling materials may be uniformly or heterogeneously dispersed in a suitable carrier or may only comprise absorbent carrier materials.

Suitable carriers are in the form of fluff, tissue or paper as commonly utilized in the absorbent core. Modified cellulose fibers (eg, reinforced cellulose fibers) can also be used. Synthetic fibers may also be used, including cellulose acetate, polyvinyl fluoride, polyvinylidene chloride, acrylics (eg orlon), polyvinyl acetate, insoluble polyvinyl alcohol, polyethylene, polypropylene, polyamides (eg nylon) And polyesters, bicomponent fibers, ternary fibers, mixtures thereof and the like. Preferred synthetic fibers have from about 3 denier to about 25 denier per filament, more preferably from about 5 denier to about 16 denier per filament. Also preferably, the fibrous side is hydrophilic or treated hydrophilically. The storage layer may also include filler materials such as pearlite, diatomaceous earth, vermiculite and the like with low rewetting problems.

If unevenly dispersed in the carrier, the storage layer may be locally uniform, ie have a distribution gradient in one or multiple directions within the size of the storage layer. Heterogeneous distribution may also refer to a laminate of carriers containing partially or fully absorbent gelling material. If laminates are used they can be formed with or without absorbent gelling particles. In particular, thermally bonded air laminated fibrous sheets or laminates and / or thermally bonded wet laminated sheets or laminates have been found to be useful in the field of panty liners, especially when no absorbent gelling material is used.

Preferably, the storage layer comprises about 15 to 100% absorbent gelling material and 0 to about 85% carrier. More preferably, the storage layer comprises about 30 to 100% absorbent gelling material, most preferably about 60 to 100% and 0 to about 70% of carrier, most preferably 0 to about 40%.

Absorbent gelling materials suitable for use herein include mostly crosslinked, partially neutralized, partially polymerized polymer gelling materials that are often almost insoluble. This material forms a hydrogel upon contact with water. Such polymeric materials can be prepared from polymerizable, unsaturated, acid containing monomers. Unsaturated acidic monomers suitable for use in the preparation of the polymer absorbent gelling materials used in the present invention include those described in US Pat. No. 4,654,039 and licensed as RE 32,649. Preferred monomers include acrylic acid, methacrylic acid and 2-acrylamido-2-methyl propane sulfonic acid. Acrylic acid itself is particularly preferred for the preparation of polymeric gelling materials. Polymer components formed from unsaturated acid-containing monomers may be grafted onto other forms of polymer residues such as starch or cellulose. Particular preference is given to polyacrylate grafted starch materials of this form. Preferred polymeric absorbent gelling materials that can be prepared from conventional monomeric forms include hydrolyzed acrylonitrile graft starch, polyacrylate graft starch, polyacrylates, maleic anhydride based copolymers and combinations thereof. Especially preferred are polyacrylates and polyacrylate graft starches.

While the absorbent gelling material is typically in particulate form, it is contemplated that the absorbent gelling material may be in the form of macrostructures such as fibers, sheets or strips.

d. Optional fiber ("dust") layer

An optional component for inclusion in the absorbent core according to the present invention is a fibrous layer adjacent to and typically underlying the storage layer. The underlying fibrous layer is typically referred to as a "dust" layer because it provides a substrate for depositing the absorbent gelling material in the storage layer during fabrication of the absorbent core. In fact, when the absorbent gelling material is in the form of laminates or macrostructures (eg fibers, sheets or strips), this fiber "dust" layer need not be included. However, their inclusion is typically preferred for absorbent cores according to the present invention as they provide some additional fluid handling performance, such as quick wicking of the fluid along the length of the pad.

e. Other optional ingredients

The absorbent core according to the present invention may comprise other optional components generally present in the absorbent web. For example, the reinforcement scrims may be located in or between individual layers of the absorbent core. Such reinforcing scrims should be shaped particularly to not form interfacial barriers for fluid transport when located between individual layers of the absorbent core. Reinforced scrims, given the structural integrity normally occurring as a result of thermal bonding, are usually not required for the absorbent structure according to the present invention. However, when used they should allow for the desired shrinkage.

Another component which may be included in the absorbent core according to the invention, preferably provided in close proximity as part of the first or second fluid distribution layer, is an odor inhibitor. These may be selected from activated carbon or color coated activated carbon, suitable zeolites or clay materials may optionally be incorporated into the absorbent core, and in combination with any zeolite, absorbent gelling materials have been found to be useful. These components may be incorporated in any desired form but are often included as discrete, non-fibrous particles.

Top sheet

The topsheet is docile, soft to the touch and non-irritating to the wearer's skin. As indicated above, the topsheet material is also elastically stretchable in one or two directions. In addition, the topsheet is originally a fluid permissible fluid (eg, menstrual and / or urine) that can easily penetrate through its thickness. Suitable topsheets include woven and nonwoven fabrics; Polymeric materials (eg, perforated thermoplastic films, perforated plastic films and hydroformed thermoplastic films); Porous foams; Reticular foam; Network thermoplastic films; And a wide variety of materials such as thermoplastic scrims. Suitable fabrics and nonwovens can be constructed from natural fibers (eg wood or cotton fibers), synthetic fibers (eg polymer fibers such as polyester, polypropylene or polyethylene fibers) or combinations of natural and synthetic fibers.

Preferred topsheets for use in the present invention are selected from high-layer nonwoven topsheets and perforated film topsheets. Perforated films are particularly preferred for topsheets because they are permeable to body excretion and are also nonabsorbent and reduce the tendency to pass and rewet fluid through the wearer's skin. Thus, the surface of the formed film in contact with the body remains dry, thus reducing body contamination and creating a more pleasant feeling for the wearer. Suitably formed films are described in US Pat. No. 3,929,135; US Patent No. 4,324,246; US Patent No. 4,342,314; US Patent No. 4,463,045; And US Pat. No. 5,006,394. Particularly preferred microperforated film topsheets are described in US Pat. No. 4,609,518 and US Pat. No. 4,629,643. Preferred topsheets for the present invention are the formed films described in one or more of the above patents, and are marketed as sanitary napkins by The Procter & Gamble Company, Cincinnati, Ohio under the trade name "DRI-WEAVE".

Topsheets which do not have a uniform distribution of the liquid passages but which have only a portion of the topsheet comprising the liquid passages are also contemplated by the present invention. Typically such topsheets will have a liquid passageway oriented to produce a topsheet that is centrally permeable and peripherally impermeable to the liquid.

If the body surface is not hydrophilic, the body surface of the film topsheet formed to transport liquid through the topsheet more quickly may be hydrophilic. In a preferred embodiment, the surfactants are described in US patent application Ser. No. 07 / 794,745 filed November 19, 1991. On the other hand, the body surface of the topsheet can be made hydrophilic by treating with a surfactant as described in US Pat. No. 4,950,254, which is incorporated by reference.

Back sheet

The backsheet prevents the excretions absorbed and contained in the absorbent core from the wet product in contact with sanitary napkins such as panties, pajamas and undergarments. The backsheet is preferably impermeable to liquids (eg, physiological and / or urine) and is preferably made from thin plastic films, although other flexible impermeable materials may also be used. The backsheet needs to be compliant and will easily fit into the general shape and appearance of the body. The backsheet may preferably also have a specific ability to elastically stretch in one or two directions.

The backsheet may comprise a woven fabric, a nonwoven fabric, a polymer film (eg, a thermoplastic film of polyethylene or polypropylene) or a composite material (eg, a film coated nonwoven). Preferably, the backsheet is a polyethylene film having a thickness of about 0.012 mm to about 0.051 mm.

Exemplary polyethylene films are prepared by Clofei Corporation, Cincinnati, Ohio under trade name P18-0401 and Bisquin Division Ethyl Corporation, Terre Haute, Indiana under trade name XP-39385. The backsheet is preferably embossed and / or mated to provide a more woven appearance. Moreover, the backsheet can escape water vapor from the absorbent structure (ie, breathable) and also prevent the feces from passing through the backsheet. The use of perforated hydrophobic polymer films with directional liquid transport as described above for the topsheet towards the absorbent structure as a breathable backsheet for a pantyliner or sanitary napkin with a small amount of liquid for absorption, in particular according to their intended use It is possible.

Product controllability

As indicated above, in order to provide an adjustable product for various sizes of undergarment, the user has for the application of individually unitary application of the disposable absorbent product, while the various pairs of undergarments are different to achieve this result. Will require disposable absorbent products of size. Thus the intent of controllability does not address the long problem that the makers of disposable absorbent articles bring to provide for larger sizes of individual products, and even this is based on the controllability provided by the preferred embodiments in accordance with the present invention. It can be obtained with extensibility.

The controllability according to the invention can be provided by the product producing a series of corrugations or wrinkles in a direction perpendicular to the direction desired for controllability. For example, a sanitary napkin or pantyliner with corrugations or wrinkles in the longitudinal direction may be stretched transversely to adjust the crotch width of the undergarment upon application of a sanitary napkin or pantyliner that is wider than the product width in the crotch as delivered to the user. Will provide the ability to become. It may also provide the ability to reduce the width of the product to produce these corrugations or wrinkles in the normal wear position in the undergarment.

The ability to adapt to the desired extension in application may be provided in the longitudinal or transverse direction. It can be used to provide a synergistic effect with the elastically extensible material in the structure of the absorbent article. Of course, it is also possible to use intrinsic material controllability with structural shrinkage provided by corrugations or wrinkles.

As used herein, the term “corrugation or wrinkle” refers to the presence of a series of continuous changes in the normal direction of the sheet plane. The "normal direction" of a plane is the direction perpendicular to the plane. Although the waveform is a continuous change in the normal direction of the sheet plane, the term "wrinkle or corrugated" as used herein refers to the folding or in other words the breaking change in the normal direction of the sheet plane. A series of wrinkles can also be used to stimulate the waveform and is approached by an infinite number of wrinkles from the theoretical point of view of the waveform.

In particular, the method of ring rolls for pantyliners can be used for the entire product to provide structural waveforms for the tunability of the product as desired. In high speed manufacturing operations at least such ring-rolls require a material that is carefully selected by those skilled in the art, but there is no problem with the material selection and the desired controllability. Prior to combination, ring-rolls of individual materials may also be useful to provide products in addition to their controllability with improved flexibility and flexibility over ordinary products. Ring-rolls are described in U.S. Patent Nos. 4,107,364, U.S. Patent 4,834,741, U.S. Patent 5,156,793, U.S. Patent 5,143,679, U.S. Patent 5,167,897, and U.S. Pat. It is described in more detail below. Waveforms are also well known and will be readily available to those skilled in the art. Waveforms may exist in the longitudinal and transverse directions of the absorbent article, but waveform techniques are being developed to provide a crosswise direction of the direction of material transport during manufacture of the article. Thus, ring-roll operation can be considered to provide a waveform in the direction of transport of the material during manufacture, while the waveform method will typically provide only a waveform in the vertical direction.

However, as used herein, the term, waveform or corrugation refers to the result of a ring-roll or corrugation, regardless of the method used in the direction of transport of the material or in the direction perpendicular to it during manufacture.

The required amount of waveforms or wrinkles (defined by size and frequency) can be easily defined by simple trial and error to adapt the required controllability. This will depend on the bonding thickness and flexibility of the product. Those skilled in the art will also appreciate that the same waveform or wrinkle may be provided to again flatten or not or depend on other degrees of controllability.

In order to provide the wearer with a product with a high degree of controllability, it is necessary to maintain the product as well as the manufacturing method during the rest of the packaging operation and to provide product positioning and personal handling prior to attachment to the undergarment. Need to transport. This can be obtained by stabilizing or freezing the product in a corrugated or pleated state, if all of the panty fastening is included, for example by attaching in the form of a rigid substrate such as panty fastening release paper or panty fastening adhesive protective means.

Panties-fixed-adhesive

The backsheet is typically optional but forms a garment contact surface in which the desired panty fixation means is located. The panty fixation means can be an adhesive, which can then provide the usual panty fixation adhesive.

The panty-adhesive-adhesive may comprise any adhesive or glue used in the art for this purpose, with pressure sensitive adhesives being preferred. Suitable non-extensible adhesives are made by Century A-305-IV, Lock 34-2823, 3 Sigma, manufactured by National Starch Co., Ltd. Fuller H-2238ZP manufactured by 3 Sigma 3153 and H. B. Fuller Company. Suitable adhesive fasteners are also described in US Pat. No. 4,917,697. Other suitable panty-stick-adhesives are described in PCT International Publication WO 92/04000; It is shown in WO 93/01783 and WO 93/01785.

In particular, it is to be understood that the adhesive needs to support this performance because it is desirable to produce a component that forms a garment contact surface of a sanitary napkin (and any underlying component) that is suitable for the wearer's panties. The panty anchoring adhesive is preferably applied to intermittent patterns, such as intermittent dots, intermittent strips, irregular or devised filament patterns, for example to shrink and / or extend sanitary napkins.

If the panty fixation means is provided by an adhesive, it is important in the context of the present invention that the entire backsheet surface is not provided with the adhesive. In particular, when wrinkles are formed, the adhesive provides only the superior area of the undersheet and the backsheet, which eventually becomes the initial contact when the absorbent product is attached to the undergarment, and is not part of the wrinkles, whereby the adhesive surface is the product itself It will be in contact with another adjacent adhesive face. In order to best control the application of the adhesive as panty sticking adhesive, it is possible to apply the adhesive to panty sticking adhesive protection means such as release paper and to transport it only to the backsheet, wherein the release paper is in contact with the panty sticking adhesive.

In addition to the adhesive, other types of fasteners may be used instead of or in addition to the adhesive. These other types of fasteners are arranged in a pattern similar to an adhesive. Such fasteners include, but are not limited to, conventional Velcro hook material or similar fasteners.

The optional protective side flap can have an optional fastener for additional protection. The optional protective side flap fastener can be any type of anchoring material herein. The fastener assists the protective side flap while remaining in a position after wrapping around the edge of the crotch surface of the protective side flap.

Prior to use of the absorbent article, the panty fixative adhesive typically protects against contamination and adhesion to any surface and is not preferred by protective cover means such as silicone coated release paper, plastic film or any other easily removable cover. . Protective cover means can be provided, for example, as single or multiple parts for covering individual adhesive areas.

Particularly in an embodiment according to the invention having a corrugation or corrugation in the backsheet (or the entire product), the part of the corrugation or corrugation directed outward from the article (ie the part of the backsheet which first comes into contact with the undergarment in use of the product). It is desirable to provide a panty sticking adhesive only onto the bed. In these embodiments, the protective covering means is preferably non-extensible and non-shrinkable material. The adhesive will then be protected and the product held during corrugation or crease until the cover means are removed. The release papers mentioned above have been found to be most useful herein.

Claims (10)

An upper sheet having a liquid passage; A back sheet having an outer surface in contact with the undergarment of the wearer during use; An absorbent core inserted between the top sheet and the back sheet; A panty fixing means provided on an outer surface of said backsheet, An absorbent article for engaging an undergarment of a wearer having a longitudinal axis and a transverse axis, And wherein the size is adjustable in at least one direction selected from a direction parallel to the longitudinal axis or parallel to the transverse axis or a combination thereof. The method of claim 1, An absorbent article in which the article is only adjustable in a direction substantially parallel to the longitudinal axis. The method according to claim 1 or 2, An absorbent article wherein the article is a panty liner or sanitary napkin and the article has a maximum thickness of less than 5 mm, preferably less than 2 mm. The method according to any one of claims 1 to 3, And a release liner for protecting said panty fastening means prior to use of said article, wherein said topsheet, said backsheet and said absorbent core are corrugated or corrugated with corrugations or corrugations parallel to said longitudinal axis. The method of claim 4, wherein An absorbent article that is substantially inextensible and non-shrinkable to maintain the corrugation or wrinkles during release, packaging, and transportation of the product until the release liner uses the product. The method according to any one of claims 1 to 5, At least one of the top sheet, the back sheet, or the absorbent core is elastically extendable, and an elastically non-extensible portion of the top sheet, the back sheet or the absorbent core is substantially in the longitudinal axis. Absorbent product that is corrugated or wrinkled in parallel waveforms or wrinkles. The method of claim 6, The entire product is elastically extendable beyond an adjustable level, preferably each of the topsheet, the core and the backsheet is individually and combinations thereof elastically extendable, and the entire product is in the longitudinal direction. Corrugated or corrugated absorbent product with corrugations or corrugations almost parallel to the axis. The method of claim 7, wherein It also includes a release liner that protects the panty fixation means prior to use of the product, which is substantially non-extensible to maintain the corrugation or crease during manufacture, packaging, and transportation of the product until the release liner is used. Non-shrinkable absorbent product. The method according to any one of claims 1 to 8, An absorbent product wherein the panty fixing means is a pressure-sensitive adhesive. The method of claim 9, An absorbent product in which the entire product is corrugated or wrinkled with the pressure-sensitive adhesive applied to the outer cover of the corrugated or corrugated outer surface of the backsheet.