CZ20001803A3 - Disposable sanitary panties - Google Patents

Abstract

Three-dimensional, discrete sanitary panties (12) on disposable use is provided with elasticized and footed openings (28, 30) and elasticized waist opening (20), and are elastically extensible around the hip and around the abdomen user area. These underwear for men (12) \ t include as part of the absorbent protective composite a structure (46) expediently located in the crotch region (18) a extending into the front body portion (14) and into the rear the body portion (15) of the underpants (12) that serves to prevent and prevent unwanted penetration of absorbed liquid onto the outer garment surface user and bed linen.

Description

HYGIENIC PANTS FOR SINGLE USE

Technical field

The present invention generally relates to a disposable sanitary absorbent article, and more particularly to disposable underpants intended to protect against incontinence and provided with a liquid impermeable barrier layer and a liquid pervious absorbent layer for use as body contamination protection. exudates.

BACKGROUND OF THE INVENTION

The standard textile underpants currently used are made of cotton and / or synthetic materials. In this way, however, the formed panty of cotton and synthetic materials is not capable of providing a characteristic barrier protection and absorbency. In many cases, the panties of synthetic material have a crotch area lined with an overlapping cotton layer to absorb the perspective exudates. The standard devices used in the prior art and from or vaginal state of the art exhibit very low hygienic absorbent absorbency / barrier capabilities, and as a result, they may leak through and leak onto the outer garment under strong perspective, incontinence or any vaginal discharge.

the user (which, in other words, means that these absorbent articles are unable to prevent the action of liquids from their internal volume onto the surface).

Textile underpants used in combination with other incontinence or absorbent articles have, despite their wide application for the purposes described, a number of disadvantages and problems associated with their use. Underpants combined with appropriate absorbent articles may be uncomfortable and uncomfortable for some users to function properly. According to the experience of certain users, one of these problems is the difficulty of keeping the absorbent article in place within the panties, causing not only physical discomfort but also discomfort to the wearer and undesirable leakage. In addition, in the event of leakage, the user must grip the absorbent article with the fingers of his or her hand and move it to the appropriate location and, in the event of this occurring in public, must endure wet panties until then. until he gets home.

In some respects, disposable diapers or disposable sanitary panties intended for the hygienic protection of young children could be used for this purpose. However, because of the apparent differences between the physical proportions of young children and adults, and because of the apparent differences between physical activity and mobility of young children and adults, not merely increasing the size of diapers to disposable •

application to the dimensional size of adult individuals in many ways to meet the necessary needs and requirements of adult users.

Many of the disposable sanitary panties that are currently commercially available or known (for example based on the facts described in the patent documents) include a component provided with elastic elements arranged in a sandwich insertion between the liquid-permeable topsheet and a liquid impermeable backsheet and extending substantially at or slightly over the edges of the absorbent core to form a structure in which the elastic members, and in particular the elastic members that are associated with the leg openings, are important for providing elimination and protection against leakage of the liquid in the crotch area. However, such a structure may result in increased stiffness and rigidity of the absorbent core, agglomeration of the absorbent core, or gaps in the elasticized structure, which may cause both unwanted leakage and uncomfortable and uncomfortable fit. Other types of sanitary panties include a weld seam in the crotch region joining the front and back waistband together, which can also cause increased rigidity and rigidity, which can both result in undesirable leakage and uncomfortable and uncomfortable for the user especially in those cases in which said weld seam comes into contact with the user ' s skin.

Other types of sanitary panties for disposable use exhibit, as part of the disposable side sealing and sealing means, arranged in different locations an outer and / or inner side of the absorbent article. Absorbent articles comprising, as part of an internally arranged side airtight closure joint, and having a concomitantly improved external appearance, may cause undesirable skin irritation during functional use. In addition, the manufacture of such absorbent articles normally requires the use of complicated and costly manufacturing techniques. In contrast, absorbent articles comprising, as part of the outer side sealed closure joints, although providing a much more comfortable and comfortable fit in the side panels, are unable to meet the requirements of suitable absorbent articles, including the arrangement of elastic leg openings and elastic members. the crotch area and the resulting comfortable fit, improved leak resistance, and easy and simple manufacture.

At present, the well-known disposable absorbent articles of the diaper type are widely used in the field of incontinence care for adults, as well as in the field of care for minors. A typical disposable diaper-like disposable absorbent article is a three-layer composite absorbent article comprising a liquid-permeable, skin-facing inner cover, a liquid impermeable outer protective layer, and an absorbent felt pad disposed in a sandwich insert between said inner cover and an outer protective layer. Materials that currently for the creation of the three

The basic components of a disposable diaper composite disposable absorbent article typically use include various types of nonwoven fabric in the case of a user-facing inner liner, a thin thermoplastic film in the case of an outer protective layer, and pulp fluff in the case of an absorbent felt pad.

Disposable diaper-like disposable absorbent articles currently available on the market are flattenable, side-open absorbent articles that are intended and adapted to fit around the wearer's body in the waist portion thereof. The rear panel of the diaper-like absorbent article is positioned over the user's buttocks, while the front panel of the absorbent article overlaps the user's abdominal portion. The sidewalls of this absorbent article are folded over each other and secured together using various fasteners, such as a double-sided adhesive tape.

The widespread popularity of the disposable diaper-like disposable absorbent articles just described has led to their application in the design of disposable sanitary panties intended for minors, and it has been assumed that this experience can also be applied to the design of disposable sanitary panties that could be used for adult incontinence sufferers. Although disposable diapers are similar to disposable absorbent articles for the purpose of protecting the incontinence of sufferers, there are a number of reasons why such absorbent articles are not able to meet all needs and diapers of the user's requirements. Application of such absorbent articles in functional use is typically very difficult, requiring a much greater coordination of the user's movements and a much greater number of steps compared to the much easier insertion of classic panties. In addition, the external appearance of diaper-like absorbent articles has psychological effects on the user, including in particular inferiority and embarrassment.

Incontinence protectors and feminine sanitary napkins or cotton pads that are used in combination with conventional textile underpants are typically provided with a back garment-facing layer made of polyethylene, providing certain protective barrier capabilities that are necessary for elimination and securing purposes. prevention of shock penetration and leakage of the acting liquid. However, in the case where the shock penetration of the applied liquid takes place and propagates laterally in the direction of the lateral sides or longitudinally in the direction of the front ends of the protective means, this liquid may leak to the surface of the panties. The leakage can then lead to undesired wetting of the panties. Depending on the extent of this leakage, the acting liquid may penetrate or pass the protective means or panty to the surface of the outer garment and / or bedding. Persons suffering from severe incontinence problems must rarely use two or more pads at the same time to prevent unwanted, annoying and soiling causing leakage, and also frequently replace them. In some cases, these problems go so far that some individuals affected by a very severe incontinence restrict their public activities and stay at home.

The location of incontinence protectors and feminine sanitary napkins in the crotch area of standard textile underpants shows that the preservative rests, at best, on the elastic elements of the leg opening and, at worst, extends beyond these elastic elements. This arrangement is the cause and causes lateral leakage to the surface of the panties, possibly to the surface of the outer garment or bed linen. The characteristic leakage of the acting liquid from the protective absorbent means results in its poor and poorly effective fit with respect to the contouring profile of the user's body, incorrect positioning of the protective means by the user, and insufficient absorbency. The leakage of the applied liquid from the panty to the outer garment is mainly due to the incompatibility between the width of the protective absorbent article and the width of the crotch region of the panty, and the lack of protective barrier properties of the absorbent article. In addition, the leakage is in many cases caused by the displacement of the protective absorbent article during functional use as a result of its ineffective placement or securing against conventional textile panties.

SUMMARY OF THE INVENTION

Briefly, in accordance with the present invention, three-dimensional, discrete disposable sanitary panties are provided that are provided with elasticized elasticized panties which are elasticized. Leg openings and elasticized waist region extending circumferentially stretchable around the user's hip and abdominal region, and providing adequate protection in terms of incontinence problems.

The desired protective benefit is achieved by providing a sufficiently compliant absorbent core associated with the crotch region of the sanitary panties in which the respective absorbent core is maintained in order to absorb the incontinence outlets correctly positioned by arranging an assembly of elastic members surrounding each of the leg openings. The absorbent core extends from the crotch region of the sanitary panties into other components, the front body portion and the back body portion of the panties. The disclosed arrangement provides for such sanitary panties that are capable of catching and absorbing impact-acting incontinence outlets and capable of completely eliminating the penetration of these outlets to the outer garment surface and / or bedding.

BRIEF DESCRIPTION OF THE DRAWINGS

The present invention will be explained in more detail by way of a detailed description of examples of specific embodiments thereof in connection with the accompanying drawings, in which:

FIG. 1 is a plan view and an exploded view of the disposable sanitary panties of the present invention;

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The disposable sanitary panties of the present invention, shown in plan view, are shown in a plan view. and in an unfolded state;

1b shows the disposable sanitary panties according to the present invention shown in plan view and in an unfolded state;

1c is a plan view and an exploded view of the disposable sanitary panties according to the present invention;

2a is a plan view and an exploded view of the disposable sanitary panties of the present invention;

2b is a plan view and an exploded view of the disposable sanitary panties according to the present invention;

a disposable sanitary panties according to the present invention, shown in plan view and in an unfolded state;

the disposable sanitary panties of the present invention shown

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·· · Fig. 5 ··· ··· · · · · · · · · · · · · · · · · · · · · · In perspective and in a fully assembled position for functional application;

disposable sanitary panties according to the present invention, shown in perspective and fully assembled to a position for functional application;

a partial cross-sectional view taken along line 6-6 of FIG. 1a, illustrating the mutual arrangement of the outer protective layer, the skin facing the wearer and the corresponding elastic elements;

a partial cross-sectional view taken along line 6-6 of FIG. 2b illustrating the relative arrangement of the outer protective layer to the skin facing the wearer and corresponding elastic members;

a schematic cross-sectional view, taken along lines 4-4 of FIG. 1a showing the arrangement of the top face layer, the structure of the absorbent core and the outer protective layer; and a schematic, cross-sectional, cross-sectional view taken along line 4-4 of FIG. 2a showing the arrangement of the top face layer, the structure of the absorbent core and the outer protective layer.

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DETAILED DESCRIPTION OF THE INVENTION

The following detailed description is made in connection with such an absorbent article 10 such as disposable sanitary panties 12 comprising a suitable absorbent core as part of a functional application. However, it will be appreciated that the article of the present invention can be used to provide any adult, cannon and infant sanitary absorbent articles designed to absorb and protect against incontinence, vaginal, perspective and similar effusions and body exudates.

The disposable sanitary panties 12 of FIG. 1a of the accompanying drawings represent a preferred embodiment of the present invention, shown in a plane exploded state in which they are in a functional position prior to assembly. In FIG. 1a, the sanitary panties 12 shown have an outer protective layer 13 which includes as part of the front body portion 14, the rear body portion 15, the front waist edge 44, the rear waist edge 50, and the crotch region 18, with this region 18 the crotch is arranged between the front body part 14 and the rear body part 15.

The outer protective layer 13 is pliable and soft to the touch in terms of user properties. The outer protective layer 13 may consist of a layer of any chosen soft, pliable, elastically resilient, porous material which is either permeable to liquids and explicitly permits easy penetration of the acting liquids into its volume, or is impermeable to liquids and thus resistant to penetration of these liquids to its volume. Suitable and for

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The outer protective layer 13 usable herein may be formed from a wide variety of materials, for example such as natural fibrous materials (e.g., wood pulp or cotton), synthetic fibrous materials (e.g., material), fibrous polyester or polypropylene fibrous combinations of natural and synthetic materials, foamed materials with a cross-linked structure, or perforated plastic foils.

A number of manufacturing techniques can be used to produce the outer protective layer 13. Accordingly, the outer protective layer 13 may be formed of woven or nonwoven webs or webs, such as spunbonded, webs, meltblown webs or carded webs, consisting of synthetic polymeric fibers such as polypropylene, polyethylene , polyester or the like, or nonwovens formed from natural polymeric fibers, for example, silk staple or cotton. The card-bonded fibrous web may be heat-bonded or spray-coated with a binder using those well known in the textile industry of well known technology. Ideally, the outer protective layer 13 is formed of a spunbonded and drawn spunbonded polypropylene fabric with crosslinking-like bonding structure. A suitable spunbond drawn material is the material available from Kimberly-Clark Corporation, Roswell, Georgia. The outer protective layer 13 has a basis weight ranging from about 0.3 ounces per square yard [axis] to about 2.0 axes, and in an alternative embodiment the protective layer has a basis weight of about 0.6 axis.

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The outer protective layer 13 of the panty may be printed or colored, or embossed. The material of which the outer protective layer 13 is formed has a pore size which ensures its satisfactory breathability by expressly allowing easy passage of air or sweat and perspective exudates through this upper protective layer. Optionally, the outer protective layer 13 may be embossed or perforated with separate, non-interconnected, slits or openings extending therethrough.

Referring to FIG. 1a, 2a, and 3 of the accompanying drawings, it can be seen that the side edge 60 of the front body 14 will be in a assembled state connected to the side edge 62 of the rear body 15 to form an airtight closure joint or side skirt 64. Similarly, the side edge 66 of the front body portion 14 in the assembled state coupled to the side edge 68 of the rear body portion 15 to form an airtight seal or side skirt 70. Once assembled, the front body portion 14 and the rear body portion 15 form a waist opening 20 for threading onto the body. and removing the panties 12 from the body of the wearer. The waist opening 20 is at least partially surrounded by an elastic element 22 of the body part comprising 1 to 40 strands, threads, fibers, strips or strips of elastic material. Said elastic element 22 of the body part is attached to the front body part 14 and / or to the rear body part 15 in the stretched state. In addition, the elastic body member 22 may be further disposed on the front waist edge 44 and the rear waist edge 45. (In other embodiments, the elastic body member 22 may be disposed either in the front body member 14 only or in the rear body member 15 only). The elastic elements 22 of the body portions, when attached to the respective body portion, are released to form a folding, shirring, or pleat 24 of the body portion (see Figs. 4 and 5) which explicitly permits and serves to expand the waist opening 20, the front body portion 14; the back body portion 15 in such a way as to provide the possibility of adapting the sanitary panties 12 to individuals of different body sizes.

Since the wearers of the pants-type absorbent article of the present invention prefer the so-called panty cut (i.e., raised waist briefs) for functional application, the front waist hem 44 of the undergarment preferably comes into contact with the umbilical region and even the umbilical region. with the area around the user's waist. The panty 12 provided with such a raised waist and, in addition, by extending the elastic elements 22 of the body parts 14 and 15 extensible in either or both body parts, provides and provides a secure and comfortable fit. Alternative cuts of the panty may include a bikini cut (for example, conventional leg openings and French cut leg openings) or a lower waist pant, or so-called lumbar cut (for example, conventional leg openings and French cut leg openings).

In some embodiments of the absorbent article, the waist opening 20 may be surrounded by an elastic member or members 21 of the waist opening comprising 1 to 10 strands, fibers, strips, or strips of elastic material that are in the stretched state and that are fastened in that state.

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to the front waist edge flange 44 and / or to the rear waist edge flange 45 (see Figures 5 and 7). (In other embodiments, the elastic waist opening element 21 may be disposed either only in the front waist edge flange 44 and / or in the rear waist edge flange 45). The elastic waist opening elements 21 are loosened upon attachment to form a flap folding, pleating or shirring waist opening 25 that explicitly permits and serves to stretch the waist opening 20 in a manner that accommodates sanitary panties 12 to individuals of different body sizes. The use of the waist opening elastic elements 21, showing, compared to the tensile stress or stretch range of the elastic body portion 22, a different tensile stress or stretch range can provide better fit and fit to the sanitary panties 12.

Referring again to FIG. 1a, it can be seen that the front body portion 14 and the rear body portion 15, together with the crotch region 18, form respective leg openings 28 and 30, which are generally circular or oval in configuration. These leg openings 28 and 30 are at least partially surrounded by respective elastic members 32, 33, 34, 35, 37 and 39. The front leg opening elastic members 32 and 33 are attached to the front body portion 14 and are in the expanded state during this attachment; the rear leg opening elastic elements 34 and 35 are attached to the rear body portion 15 and are in the stretched state during this attachment, and the crotch region elastic elements 37 and 39 are attached to the crotch region 18 and in the stretched state. The leg opening elastic elements 32, 33, 34, and 35 and the crotch region elastic elements 37 and 39 are released after attachment.

providing a leg opening shirring 36 (also referred to as false folding or pleating) that explicitly permits and serves to expand the leg openings 28 and 30 in a manner that allows the sanitary panties 12 to adapt to individuals of different body sizes.

The front body portion 14 is typically divided into two parts, the upper portion 40 of the front body portion and the lower portion 42 of the front body portion (see Figs. 1a, 2a, and 3). Similarly, the rear body portion 15 is also divided into two parts, namely the upper portion 41 of the rear body portion and the lower portion 43 of the rear body portion. Preferably, the upper body portion 40 and the upper body portion 41 are formed to include, as part of, an elastic body portion 22 that is capable of allowing stretch stretching, which explicitly allows the wearer of the sanitary panties 12, their adapting and copying the anatomical profile of the user's body, followed by easy and convenient download. Said arrangement ensures a close fit or a safe and comfortable fit of the sanitary panties to different anatomical configurations and body sizes. The elastic body member 22 is disposed in both the upper body portions, the upper body portion 40 and the upper body portion 41, at locations located between the waist opening 20 and the leg openings 28 and 30 in such a manner that as a result, the improved ability of the panties 12 to adapt and follow the anatomical profile of the user's body. The arrangement of the elastic element 22 of the body part in the lower part 42 of the front body part and in the lower part 43 of the rear body part is not absolutely necessary.

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The basis weight of the layered structure comprising the outer protective layer 13, the skin facing the user 80 and the elastic elements 22 of the body portion may be up to 5 ounces per square yard (axes).

The crotch region 18 of the sanitary panties 12 consists of an absorbent protective composite structure 46 (see Fig. 1a). The absorbent protective composite structure 46 further comprises a liquid-permeable barrier layer 48, a substantially liquid-permeable topsheet 49, and an absorbent core 50 sandwiched between the barrier layer 48 and the topsheet 49. Desirably, the barrier layer 48 and the topsheet 49 has a greater length and width than the absorbent core 50 in such a way that the peripheral edges of the barrier layer 48 and the topsheet 49 form an edge flange that can be joined together and sealed by ultrasonic bonding, thermal bonding , adhesive bonding, or other suitable means or techniques for use herein. Elastic crotch region elements 37 and 39 may be incorporated into this sealed region between the barrier layer 48 and the topsheet 49. The absorbent core 50 may be attached to either the barrier layer 48 and / or the topsheet 49 via ultrasonic bonding, adhesive bonding, or other suitable means or techniques for use herein (see Figures 1a, 8, and 9). ).

In addition, the absorbent protective composite structure 46 may include, as part of, additional components that are designed to assist in absorbing, distributing, retention and retention of exuding body exudates. Thus, the absorbent protective composite structure 46 may comprise as part of either a distribution layer, for example, such as the transfer layer described in U.S. Patent No. 4,798,603 to Meyer et al., Issued January 17, 1989, or a buffer layer, such as shock the liquid-leveling layer described in European Patent Application EP 0 539 703 A1, published May 5, 1993; the full descriptions of the aforementioned documents are hereby incorporated by reference and become part of the present invention. Said layers to be used as part of the absorbent structure are also referred to as acquisition / distribution layers.

The absorbent protective composite structure 46 may consist of a topsheet 49 and a barrier layer 48 formed of suitable materials, and a separate, separately formed absorbent core 50 arranged in a sandwich interposition between said barrier layer 48 and the topsheet 49. Side and face panels the peripheral edges of the barrier layer 48 and the topsheet 49 outside the absorbent core 50 may be coupled to the crotch region 18, the front waist panel 14, and the back waist panel 15 and sealed together. The absorbent protective composite structure 46 may optionally have a T-shape, an I-shape, an oval shape, an hourglass shape (center tapered shape), a regular quadrangle shape, or any usable irregular shape.

The absorbent core 50 may be formed from a composite material consisting of a mixture of fibrous pulp and a synthetic polymeric fibrous material. Combined ··

for example, the material may include a blown-air mixture of pulp fluff and blown polyolefin fibrous materials, such as polyethylene or polypropylene fibrous materials. In addition, the absorbent core 50 may be formed solely of said composite material; a mixture of combined material and superabsorbent materials; a mixture of the combined material with other absorbent or non-absorbent materials, including an acquisition / distribution layer; or any arbitrary combination of said materials.

The composite material may consist of a blown air deposited mixture of pulp fluff and blown polyolefin fibrous materials, such as polyethylene or polypropylene fibrous materials, or may consist of blown air-formed fibrous pulp felt (e.g., wood pulp fluff). Further, the absorbent core 50 may optionally be treated with a surfactant to assist in absorbing and absorbing the fluid while maintaining the environment in a dry state. In specific embodiments of the present invention, the absorbent core 50 has a bulk thickness of no more than about 40 mm in the dry state. The hydrophilic fibrous pulp and the polymeric fibers constituting the blend from which the absorbent core 50 is formed may be present in the absorbent core 50 in a hydrophilic fiber: polymer ratio greater than 20:80 relative to each other, with the ratio being capable of varying. for example, in the range of about 60:40 to about 98: 2, preferably it is desirably in the range of about 80:20 to about 90:10.

In the case of a combination material comprising super20 absorbent materials, the ratio of hydrophilic fiber: high absorbency material is in the range of about 90:10 to about 50:50, and preferably the ratio is in the range of about 60:40 to about 50:50. 65:35. Said highly absorbent materials are described in detail below.

Highly absorbent organic materials can include both natural materials such as pectin, guar gum and peat moss as well as synthetic materials such as synthetic hydrogel polymer materials. Hydrogel polymeric materials may include such materials as carboxymethylcellulose, alkali metal salts of polyacrylic acids, polyacrylamides, polyvinyl alcohol, copolymers of ethylene and maleic anhydride, polyvinyl ethers, hydroxypropylcellulose, polyvinylmorpholine, polymers and copolymers of vinyl sulfonic acid, polyacrylates, polyacrylates, polyacrylates, polyacrylates or similar materials. Other suitable polymeric graft copolymer materials may include hydrolyzed acrylonitrile starch, graft acrylic acid, isobutylene and maleic anhydride, mixtures thereof, and combinations thereof.

It is required that said hydrogel polymeric materials exhibit cross-linking to a sufficient extent that is capable of rendering them substantially water insoluble. Such crosslinking may be accomplished, for example, by irradiation or processing to form covalent bonds, ion bonds, van der Waals bonds, or hydrogen bridge bonds. The materials described and suitable for the purposes of the present invention are commercially available from various vendors or traders such as the Dow Chemical Company, Hoechst-Celanese Corporation and Allied-Colloid. Typically, the highly absorbent material is capable of absorbing or absorbing an amount of water that is at least about 15 times its weight, and is required to be capable of absorbing an amount of water that is greater than about 25 times its weight.

Be in absorbent in another way by using different

The highly absorbent material may be disposed, spaced, or absorbent of the core 50 under technological processes. For example, the highly absorbent material may be substantially uniformly distributed within the absorbent core 50 between the individual fibers of the fibrous material contained therein. In addition, the highly absorbent materials may also be unevenly spaced within the fibrous material of the absorbent core 50 and at the same time so as to form a generally continuous gradient, either with increasing or decreasing concentration of the highly absorbent material as desired and moving in the direction from the barrier layer 48 towards the inner volume of the absorbent structure. Alternatively, the highly absorbent material may be arranged as a separate discrete layer of material formed independently of the fibrous material of the absorbent core 50, or may be arranged as a separate layer formed integral with the absorbent core 50.

In addition, the absorbent core 50 may further comprise, as part of, an overlying coating layer 100 that serves to assist in maintaining the integrity of the fibrous core (see Figures 8 and 9). The overlying cover layer 100 may be 9 9.

9 99 9 99 9 • 99 999 99 9 • 99 9 9 99 9 • 9 »9 99 99 formed from pulp (paper pulp) or spunbonded or drawn spunbonded fibrous webs, meltblown fibrous webs or carded bonded fibrous webs, consisting of synthetic polymeric fibrous materials, for example polypropylene, polyethylene, polyester or the like fibers, or fibrous webs or fabrics consisting of natural polymeric fibrous materials, such as silk staple or cotton.

Preferably, the thickness of the absorbent core 50 is less than about 45 mm. The thickness of the absorbent core 50 may range from about 4 mm to about 40 mm. Preferably, the thickness of the absorbent core is in the range of about 5 mm to about 30 mm, with a thickness in the range of about 6 mm to about 20 mm being most preferred. This thickness is measured on a smooth, not buckled and untwisted, flattened square test specimen (with elastic elements removed) of 4 inch (102 mm) by means of a Mitutoyo Digamatic Indicator dial indicator using a circular acrylic plastic insert plate, and 0.05 psi pressure generating kits.

The absorbent core 50 should exhibit a degree of liquid absorption capacity sufficient to absorb body exudates in an amount ranging from about 100 grams to about 1500 grams. The absorbent core 50 should, as far as possible, exhibit optimal liquid absorption capacity (to be described in detail below) and preferably, if possible, a thickness that is less than about 25 mm, thereby ensuring low bulkiness, elimination of clumsy and comfortable storage of absorbent

product during, functional application. Desirably, the absorbent core 50 has a total absorbent capacity of the liquid ranging from about 200 grams to about 1000 grams. In a preferred embodiment, the absorbent core 50 should have a total liquid absorption capacity of at least about 300 grams and no greater than about 800 grams. In an even more preferred embodiment, the absorbent core 50 should have a total liquid absorption capacity of about 400 grams to about 600 grams.

The total liquid absorbency of the absorbent core 50 is determined by the use of the absorbent protective composite structure 46 and the outer protective layer 13 as part of the sanitary panties 12. A measure of the total absorbency of the sanitary absorbent article, in this case sanitary panties 12 . The retention absorption of the saturated liquid in the saturated state is determined as follows: Hygiene panties 12 to be tested and having a moisture content of less than about 7 percent by weight are weighed and all their volume at higher temperature values room (about 23 ° C) is immersed in saline, which will be described in detail below. The test panties sample is left immersed in saline for 20 minutes. After a period of 20 minutes, the tested panty 12 is removed from the saline solution and placed on a 0.25-inch Teflon ™ coated laminate grille (marketed by Taconic Plastics Inc., based in Petersburg, New York). ), which is then placed in the vacuum cabinet and covered with a flexible rubber damming device. 9 9 9 9 9

- 24 material. A vacuum of magnitude is created in the vacuum box

3.5 kPa (0.5 pounds per square inch) and held for 5 minutes. After removing the tested panty 12 from the vacubox, these are weighed. The amount of liquid retained by the panty test material is determined by subtracting the dry weight of the tested panty 12 from the wet underwear test weight 12 (after vacuum application) and the value determined as the saturated liquid retention absorption in grams of retained liquid.

The saline solution used is about 0.9 percent sodium chloride solution. A suitable and compliant product is a certified S / P ™ blood saline solution, available from Baxter Diagnostic, located in McGaw Park, Illinois.

In the structure of the absorbent protective composite structure 46, the barrier layer 48 should serve to slow the displacement of the acting liquid through the absorbent protective composite structure 46, which is achieved by making the barrier layer 48 resistant to the penetrating liquid under normal wear conditions during functional application. The absorbent protective composite structure 46 may be processed by any of the techniques well known in the art, such as coating the absorbent core 50 with a coating layer or combining the absorbent core 50 with a separately formed liquid impermeable material through their solid bonding. as a result, it exhibits liquid impermeability. The barrier layer 48 may be formed from a thin, liquid-impermeable web or a continuous layer. Plastic foils formed, for example, from materials such as polyethylene, polypropylene, polyvinyl chloride ( PVC) or similar materials. In an alternative embodiment, the barrier layer 48 may be formed of a nonwoven fibrous web, which is preferably treated and arranged to exhibit low liquid permeability. In yet another alternative embodiment, the barrier layer 48 may be formed from a laminated or laminated material, such as a laminated, thermally bonded plastic film or a nonwoven composite web. Further, the barrier layer 48 may optionally be formed of liquid-impermeable plastic film or foam that are permeable to water vapor under normal wear conditions during functional application. In a more preferred embodiment, the barrier layer 48 has a degree of water vapor permeability of at least about 1000 grams / square meter / 24 hours as determined using the ASTM E96-92 measurement method. One example of a suitable plastic film for use herein is a microporous film having a basis weight of 39.4 grams per square meter, manufactured by Mitsui and marketed by Consolidated Thermoplastics (CT) under the trade name ESPOIR® N-TAF-CT.

The barrier layer 48 is required to consist of a material that is formed or processed to exhibit liquid impermeability. Alternatively, the barrier layer 48 may be formed of a liquid impermeable material and in combination with other suitable means (not shown) such as a liquid impervious layer associated with the absorbent protective composite structure 46 (or the absorbent core 50). ), which may be formed to act as a barrier to the transfer of the externally applied liquid out of the absorbent protective composite structure 46 (or < RTI ID = 0.0 > < / RTI > 9 9 9

9 9 9 • 9 9 9 absorbent core 50). The barrier layer 48 may comprise either a single compact material layer or may be formed by superimposing two or more separate layers of material from each other. Suitable materials for forming the barrier layer 48 include thermoplastic films, woven fabrics, nonwoven fabrics, laminated materials formed from films, woven fabrics and / or nonwoven fabrics, foam materials, and the like. Thus, the barrier layer 48 may be formed, for example, from a thin, liquid impermeable web or a continuous layer of plastic film, formed, for example, from such materials as polyethylene, polypropylene, or the like. One suitable and suitable barrier layer is a polyethylene film having a thickness of 0.028 millimeters, provided with a purpose-embossing made of a matt relief finish and subjected to a corona discharge treatment on both front surfaces. The terms liquid impermeable or liquid impermeable, used to describe a layer or layered structure, mean that a fluid or liquid, such as urine, will not pass through the layer or layered structure under normal conditions of functional application after its impact. in a direction generally perpendicular to the plane of the layer or layered structure from the point of contact of the fluid (or liquid) with the layer or layered structure.

The barrier layer 48 is required to prevent the prevention of shock penetration of the applied liquid towards and to the outer garment surface during exudation into the absorbent protective composite structure 46 of the sanitary panties 12. The barrier layer 48 is disposed on the inner side of the outer protective layer 13; And in the crotch region 18 and consists of a liquid impermeable sheet, such as a polyethylene sheet. The use of only this film (alone, ie not in combination with the outer protective layer 13) could be not very safe and inconvenient, as this arrangement may not be sufficiently durable and durable to be able to withstand prolonged periods of functional application. The absorbent core 50 may be coupled to the barrier layer 48, which may or may not exhibit elastic characteristics.

The absorbent protective composite structure 46 includes, as part of a substantially liquid impermeable barrier layer 48, and a liquid (or liquid) permeable topsheet 49 disposed over and superimposed on the outer protective layer 13 (see Figures 1a, 8, and 9). Between the barrier layer 48 and the topsheet 49 is a sandwich absorbent core 50 (see Figs. 1a, 8, and 9). Desirably, the barrier layer 48 and the topsheet 49 have a greater length and width than the absorbent core 50. The topsheet 49 is formed and intended to be oriented towards the wearer and is referred to as the wearer's face facing the face 16. the barrier layer 48 is formed and intended to be disposed towards the outer protective layer 13 and the wearer's outer garment and is referred to as the wearer's facing surface 23.

The absorbent core 50 includes materials adapted to absorb and contain urine, menstrual discharge, blood, or other body exudates. The absorbent core 50 may be formed from a variety of natural or synthetic absorbent materials, such as fibrous pulp, a surfactant blown fibrous surfactant. · 4 4 4 4

4 4 4 4 4 4

44 4 4 44 materials, wood pulp or wood pulp, regenerated cellulose or cotton pulp fibers, blend of wood pulp and other fibrous materials, or similar materials. One such material useful herein is a composite material consisting of a mixture of fibrous pulp and a synthetic polymeric fibrous material. In addition, the absorbent core 50 may further comprise as part of a variety of compounds, admixtures, or excipients designed to enhance its absorbency, for example from 0 to 95 percent by weight of organic or inorganic highly absorbent materials which are typically capable of absorbing water in an amount at least about 15 times their weight, and it is desirable (and preferred) that the amount is greater than 25 times the weight of the highly absorbent material. Suitable and highly absorbent materials for this purpose are described in U.S. Patent 4,699,823, Kellenberg et al., Issued October 13, 1987, and U.S. Pat. No. 5,147,343, Kellenberg, et al., Issued September 15, 1992; the full descriptions are hereby incorporated by reference and incorporated into the present invention. Highly absorbent materials are commercially available through various vendors, such as Dow Chemical Company, Hoechst Celanese Corporation, and Allied Colloids, Inc. In addition, the absorbent core 50 may further comprise, as a component, overlap layers or absorbent layers that serve to help maintain integrity.

fibrous absorption materials, or for conversion and distribution of acting fluids. One from suitable design of the absorbent core 50 represents schematic representation FIG. 8, this

The absorbent core 50 comprises as a component a retention layer 51 for storing the acting liquid, and an acquisition / distribution layer 52 for transferring and distributing the liquid. The retention layer 51 has two sub-layers. The first sub-layer, or absorbent sub-layer (not shown), exhibits a higher liquid absorption capacity per unit area and is made of wood fiber fluff with a basis weight of 479 gsm and a highly absorbent material with a basis weight of 260 gsm. The absorbent sublayer is expediently positioned and centered in the area in which the user exudes the excretion. The second sub-layer (not shown) exhibits lower liquid absorption capacity per unit area and is formed of wood fiber fluff with a basis weight of 215 gsm and a super-absorbent material with a basis weight of 117 gsm.

The acquisition / distribution layer 52 is expediently disposed on the retention layer 51 in an arrangement closer to the user's skin facing the surface 16 of the absorbent core 50 and serves as a support means for retarding and dispersing the impact of fluid shock that may interfere and be introduced into the volume. Absorbent core 50. The acquisition / distribution layer 52 may be formed from a blow molded and carded bonded fibrous web consisting of a blend comprising 40 percent of a polyester denier of 6 denier, marketed by Hoechst Celanese Corporation, and 60 percent of a bicomponent polypropylene. - a sheathed core of polyethylene fiber having a denier weight of 3 denier, marketed by Chisso Corporation, and having a total basis weight of between about 50 gsm to about 120 gsm. Next, »4 44 49 44 44

4 »« 3 4 5 6 7 8 9

9 92 9 «9« 4 4

4,444 49,944 49 4

4,9444,9444

Alternatively, materials 52 for forming the acquisition / distribution layer are described in detail in U.S. Patent Nos. 5,192,606 issued to D. Proxmire et al., Issued March 9, 1993; U.S. Patent No. 5,486,166 to Ellis et al., Issued Jan. 23, 1996; US 5,490,846, Ellis et al., Issued Feb. 13, 1996; and US 5,509,915, to Hanson et al., issued April 23, 1996, the entire disclosure of which is hereby incorporated by reference and incorporated into the present invention. The absorbent / distribution layer 52 shown by way of example in the accompanying drawings has a rectangle configuration with a length of about 191 mm and a width of about 45 mm. The acquisition / distribution layer 52 may have different shape configurations and different size sizes depending upon the configuration of the absorbent core 50 and the absorbent protective composite structure 46.

absorbent materials

In other embodiments of the present invention, the absorbent protective composite structure 46 comprises a monolayer core 50. The absorbent core 50 comprises adapted to absorb and contain urine, menstrual discharge, blood, or other body exudates. The absorbent core 50 may be formed from a variety of natural or synthetic absorbent materials, such as fibrous pulp, surfactant treated blown fibrous materials, wood fiber fluff or wood pulp, regenerated cellulose or cotton fibrous materials, a mixture of wood pulp and other fibrous fibers. or similar materials. One such material useful herein is a composite material consisting of a mixture of fibrous pulp and a synthetic polymeric fibrous material. In addition, the absorbent core 50 may further comprise, as part of the present invention, various compounds, admixtures, or additives, as appropriate. ** «« «« designed to increase its absorbency, for example from 0 to 95 percent by weight of organic or inorganic highly absorbent materials that are typically capable of absorbing water in an amount that is at least about 15 times their weight, and it is desirable (and preferably) that the amount is greater than 25 times the weight of the highly absorbent material. Suitable and highly absorbent materials useful herein are described in U.S. Patent 4,699,823 to Kellenberg et al., Issued October 13, 1987; and U.S. Pat. No. 5,147,343 to Kellenberg et al., Issued September 15, 1992; the full descriptions are hereby incorporated by reference and incorporated into the present invention. Highly absorbent materials are commercially available through various vendors, such as Dow Chemical Company, Hoechst Celanese Corporation, and Allied Colloids, Inc.

Another suitable embodiment of the absorbent core 50 is the schematic representation of FIG. 9, wherein this embodiment of the absorbent core 50 comprises as part of a liquid storage retention layer 51. The retention layer 51 is formed from a stream of airborne mixture of wood fiber fluff having a basis weight of 470 gsm and a superabsorbent material having a basis weight of 305 gsm which is sandwiched between or overlaid with a layer of pulp with a basis weight of 19 gsm (see overlap coating 100). Optionally, the retention layer 51 is embossed by embossing calender rolls, as desired. A typical absorbent core 50 has an hourglass shape (a tapered shape in the middle) having a length in the range of about 17 inches.

• » »· 99 99 • 9 • 9 9 « «9 9 9 9 9 • • 9 9 · » 9 9 9 9 • 9 • 9 9 9 »9 9 9 * 99 • * 9 • 9 «· 99 • 9

(430 mm) to about 21 inches (530 mm) and a width in the range of about

2.5 inches (64 mm) to about 3.5 inches (120 mm). Desirably (and preferably), the absorbent core 50 has a thickness of less than about 20 mm, and especially a thickness of less than about 10 mm.

The topsheet 49 is formed of a liquid-permeable material in a manner that permits liquid body exudates, as well as possibly semi-solid excreta and exudates, to pass through the layer to the absorbent core 50 and absorb them through the absorbent protective composite structure 46 (or absorbent core 50). . A suitable and suitable topsheet 49 may be formed of a nonwoven fibrous web or sheet fabric, such as a spunbonded or stretched fibrous web, a spunbonded fibrous web or a carded bonded fibrous web, consisting of synthetic polymeric fibrous materials, for example polypropylene, polyethylene, polyester or the like, perforated foil, or nonwoven made of natural polymeric fibers or fibrous materials, such as silk staple or cotton. In addition, the topsheet 49 may be further treated with a surfactant to assist in the transfer and distribution of the absorbed fluid. In one specific embodiment, the topsheet 49 is formed of a spunbond nonwoven fibrous web consisting of a two-component sheathed core polypropylene polyethylene fiber material containing 50 percent polyethylene and 50 percent polypropylene and having a basis weight of about 20 grams per square meter. (gsm). The fabric is surface-treated by means of a surface-active

• v ** »4 ·· ·· ·· • • • * • · • • • • • • ·· • · • 4 • • • • • · • · • • ··· ··· * · ·· • t

agents marketed by Union Carbide Chemicals and Plastics Company, Inc., based in Danbury, Connecticut, U.S.A. under the tradename TRITON X-102. The term fabric used for the purposes of the present description represents all types of woven, knitted and nonwoven fabrics or nonwovens. By the term nonwoven web is meant a sheet of material that is formed differently than by using textile technologies such as weaving or knitting.

The width of the crotch region 18 between the crotch region elastic elements 37 and 39 should be so wide as to be sufficient to suitably position the absorbent core 50 between the side edges 17 and 19 of the crotch region 18 so as not to block the functional operation of the crotch region elastic elements 37 and 39. and finally, the leg opening elastic elements 32, 33, 34 and 35. This arrangement explicitly allows the crotch region elastic elements 37 and 39 of the lateral crotch region to provide the desired shrinkage, contraction and contraction of the pocket-like space that, in combination with the walls of the topsheet 49 and barrier layer 48, serves to retain body exudates and eliminate leakage therefrom from the absorbent article, and further to accommodate the body size of the wearer to a greater extent.

The width of the crotch region 18 between the elastic crotch region elements 37 and 39 should not be wide so as not to have an excessively bulky and unformed appearance, and not to be uncomfortable, wherein the width of the crotch region 18 between the elastic crotch region elements 37 and 39 is at least about 2. 5 inches (64 mm). Generally, the width of the crotch region 18 is between about 2.5 inches (64 mm) to about 6.0 inches (152 mm).

• ·

• · • ·

Typically, the width of the crotch region 18 between the elastic crotch region elements 37 and 39 ranges from about 3.5 inches (89 mm) to about 5.0 inches (127 mm). Preferably, the width is limited to about 4.25 inches (108 mm).

The crotch region 18 is at least about 0.25 inches (6 mm) wider than the width of the absorbent core 50. Generally, the crotch region 48 is wider than the absorbent core 50 by a value ranging from about 0.25 inches (6 mm). to about 4 inches (102 mm). Typically, the crotch region 18 is wider than the absorbent core by a value ranging from about 0.5 inch (13 mm) to about 3 inches (76 mm), and more typically by a value ranging from about 0.5 inch (13 mm). mm) to about 2 inches (51 mm). Preferably, the width of each of the crotch region elastic elements 37 and 39 ranges from about 0.2 inch (5 mm) to about 0.8 inch (20 mm). Even more preferably, the width of each of the crotch region elastic elements 37 and 39 ranges from about 0.2 inch (5 mm) to about 0.4 inch (10 mm). The overall width of the crotch region 18 includes, as individual sub-widths, the width extending between the crotch region elastic elements 37 and 39, the width of the crotch region elastic elements 37 and 39, and the width of the material to be collected between the outer side of the crotch region elements 37 and 39; end side edges of the leg openings 28 and 30.

Preferably, the width of the scoop material located between the end side edge of the leg openings 28 and 30 and the outside of the crotch elastic elements 37 and 39 is less than about 0.5 inches (13 mm). Even more preferably, the width of the gathered material is less than about 0.125 inches (3 mm). However, it is most preferred and most desirable to completely eliminate the existence of the scooped material at the side edges of the leg openings 28 and 30.

The width of the absorbent protective composite structure 46 is dimensionally dimensioned with respect to the width of the crotch region 18. Thus, the width of the absorbent protective composite structure 46 at least coincides with the width of the crotch region 18 extending between the elastic members 37 and 39. Preferably, the width of the absorbent protective composite structure 46 is the same size as the width of the region 18.

The total length of the absorbent protective composite structure 46 should be sufficient to extend over and beyond the end edges of the absorbent core 50 to assist in preventing and preventing liquid ingress, sleep, or sleep. positioning the wearer through the absorbent structure. The overall length or dimension extending over and beyond the end edges of the crotch region 18 in the direction of the longitudinal centerline A-A of the disposable sanitary panties 12 is at least about 12 inches (305 mm). Alternatively, the length may range from about 12 inches (305 mm) to about 30 inches (762 mm), and more typically in the range of about 15 inches (381 mm) to about 23 inches (584 mm). Typically, the length ranges from about 17 inches (432 mm) to about 21 inches (533 mm). The optimum length of the absorbent protective composite structure 46 is about 19 inches (483 mm) in length.

The width of the absorbent protective composite structure 46 extending over and beyond the crotch region 18 should be at least as large as the width of the crotch region 18 in the region outside the crotch region 18. This absorption width

The protective composite structure 46 could be smaller or narrower in the crotch region 18, but this arrangement could lead to a risk and reduce protection against unwanted leakage. Typically, the width of the absorbent protective composite structure 46 in the region outside the crotch region 18 is larger or widened. The width of the absorbent protective composite structure 46 extending beyond the crotch region 18 is in the range of about

2.5 inches (64 mm) to about 12.0 inches (305 mm), alternatively ranging from about 4.0 inches (102 mm) to about 10 inches (254 mm). Typically, this width ranges from about 7 inches (178 mm) to about 9 inches (229 mm). The optimum width of the absorbent protective composite structure 46 is about 8 inches (203 mm) in width.

According to the present invention, various composite composite substantially shaped configurations of the absorbent protective structure 46 are contemplated. One preferred embodiment of the structure exhibits an irregular quadrangular shape configuration, such as a middle tapered element (hourglass element), or an I-shaped configuration. which configurations provide an extended overlap of seat portions finally made of the preferred quadrangle structure 46 of the sanitary panties 12. Another embodiment of the absorbent protective composite has a regular or rectangular shape with rounded ends, respectively.

However, a more preferred shape configuration of the absorbent protective composite structure 46 is a substantially rectangular configuration having a mid-tapered shape (or hourglass shape) since the configuration may have substantially square sections at its ends capable of providing a smoother and more balanced external appearance

the seat portion of the sanitary panties 12, while providing a more comfortable and comfortable fit and improved fit to the anatomical profile of the wearer's body.

Referring to FIG. 1a to 2c, 2a to 2b, 3, and 6 of the accompanying drawings, it can be seen that the elastic body member elements 22 are overlapped by the skin-facing cover 80. The arrangement of this skin-facing cover 80 is described in detail below. In other embodiments of the present invention, at least a portion of the elastic body member 22 may be covered by an absorbent protective composite structure 46. Referring to FIG. 3 and 4, it can be seen that the elastic elements 32, 33, 34, and 35 of the foot opening are further covered by the skin facing the user 80. Further, from FIG. 1b, it can be seen that sandwiched crotch elastic elements 37 and 39 are sandwiched between the topsheet 49 and the barrier layer 48. In alternative embodiments of the present invention, the crotch elastic members 37 and 39 may be sandwiched between the outer protective layer 13 and the barrier layer 48. Depending on the size and shape of the absorbent protective composite structure 46, at least a portion of the elastic members 32, 33, 34 may be and a foot opening 35 overlapped by the absorbent protective composite structure 46.

In another embodiment and referring to FIG. 5 and 7, it can be seen that the elastic waist opening elements 21 are coated with a waist opening overlay 26. These elastic elements 21

9 99 «99 99 99

99 9 99 9

9 98 9 «« 999

9 9 99 99 9 9 9 9 9 9

9,999,999,999,999,999,999 of the waist opening could, or alternatively, also be covered by a skin layer facing the user's skin 40. Referring to FIG. 5 and 7 of the accompanying drawings, it may be seen that the leg opening elastic elements 32 and 34 are coated with a leg opening overlap 38. Depending on the size and shape of the absorbent protective composite structure 46, at least a portion of the leg opening elastic elements 32, 33, 34, and 35 may be covered by the absorbent protective composite structure 46. FIG. 1a, it can be seen that the elastic crotch region elements 37 and 39 are, since these elastic crotch region elements 37 and 39 are arranged in a sandwich insertion between the outer protective layer 13 and the absorbent protective composite structure 46, overlapped by this absorbent protective layer. With reference to FIG. 7, it can be seen that the elastic elements 22 of the body portion are overlapped by the skin-facing cover 80. The skin-facing cover 80 is formed of a nonwoven or any other fibrous material exhibiting adequate softness such that the material has been able to ensure satisfactory contact with the skin of the wearer. In other embodiments of the present invention, at least a portion of the body member elastic elements 22 may be overlapped by the absorbent protective composite structure 46.

The skin facing the wearer 80 is compliant and soft to the touch in terms of the user's tactile perception. Any soft, pliable, and porous continuous layer that is either permeable to liquids may be used as the skin facing the wearer.

I 4 4 4 4

I 4 4 4

4 · 44, expressly permitting the easy and rapid penetration of liquids into its volume or which is impermeable and resistant to the penetration of liquids into its volume. A suitable and skin-friendly facing layer 80 may be formed from a wide variety of materials, for example, such as natural fibrous materials (e.g., wood fiber fluff, wood pulp, or cotton), synthetic fibrous materials (e.g., polyester or polypropylene fibers), composite materials consisting of natural and synthetic fibrous materials, or crosslinked foam and perforated plastic foil.

Making the skin facing the wearer facing layer 80 can be accomplished by techniques known in the art using a number of prior art techniques.

For example, the skin 80 of the user's skin may be formed of woven or nonwoven webs, such as spunbonded fiber webs, meltblown webs or carded bonded webs, consisting of synthetic polymeric fibrous webs, such as polypropylene webs. , polyethylene, polyester or the like fibers, or nonwovens formed from natural polymeric fibrous materials, such as silk staple or cotton. The card-bonded fibrous web may be heat-bonded or spray-coated with a binder using those well known in the textile industry of well-known technology techniques. Ideally, the user-facing skin 80 is formed from a spunbonded, spunbonded polypropylene fabric with crosslinking-like bonding structure. A suitable spunbonded and drawn material is the material available from Kimberly-Clark Corporation, Roswell, Georgia. This skin-facing cover 80 has a basis weight ranging from about 0.3 ounces per square yard (axes) to about 2.0 axes, and in an alternative embodiment the cover layer has a basis weight of about 0, 6 axis. The wearer facing layer 40 of the sanitary panties may be printed, colored or embossed. The material of which the skin facing the wearer 80 is formed has a pore size that ensures its desired breathability, which explicitly allows for easy passage of air or sweat exudates through the layer material. The user-facing skin 80 may optionally be embossed or perforated by separate, non-interconnected, slits or openings extending therethrough.

The placement and shape of the leg openings 28 and 30 are important in order to avoid undesired tightness in the crotch region and the user's genitalia, to provide adequate coverage of the user's buttocks, and to prevent the sanitary panties 12 from folding forward or downward. such a displacement of the panty in which the front waist flange 44 is folded away and lowered to a lower position compared to the rear waist flange 45. In FIG. In the accompanying drawings, the most advantageous embodiment of the panty is shown with respect to its fit around the legs and overlap of the wearer's buttocks. The shape of the curve extending along the front edges 72 and 74 of the leg openings 28 and 30 may affect and influence the manner of fit and adaptation of the sanitary panties 12. If this curve is too deep, the sanitary panties 12 will move down and back. resulting in a relative shortening of the front waist panel and conversely an increase in the length of the back panel, and a baggy appearance of the seat portion of the sanitary panties 12. This results in the sanitary panties 12 exhibiting a sagging outer appearance, which clearly demonstrates unevenness in the position of the hemline in the waist region of the wearer, resulting in undesirable tightness and tightness along the leading edges 72 and 74 of the leg openings 28 and 30, and an equivalent reduction in the comfort of the panty fit in functional application.

The structural arrangement of the leg openings 28 and 30 is significant in order to ensure proper functioning of the sanitary panties 12. When the sanitary panties 12 are unfolded, as shown in FIG. 1a, the major portion (at least 51%) of the rear edges 76 and 78 of the rear portions 82 and 84 of the leg openings 28 and 30 preferably exhibit a substantially rectilinear course. More preferably, the rear edges 76 and 78 of the rear portions 82 and 84 of the leg openings 28 and 30 exhibit a substantially rectilinear course in a portion Θ that represents at least about 70% of the length of the entire rear portions 82 and 84. The rear portions 82 and 84 of the leg openings 28 and 30 should be arranged such that they form an acute angle with the longitudinal centerline AA of the sanitary panties 12. Preferably, the rectilinear portion Θ forms an angle α with the longitudinal centerline AA of the sanitary panties 12 having a size in the range of about 45 ° to about 89 °, more preferably in the range of about 55 ° to about 87 °, and most preferably ranging from about 61 ° to about 76 °. In the case where the rear edges 76 and 78 of the rear portions 82 and 84 of the leg openings 28 and 30 exhibit a slightly curved course (the curvature of this curvature). having a radius of at least 6 inches), two points are selected to describe this curvature) along its course, and by one of these points positioned at about 25% of the length of the slightly curved course, and the other point positioned found at about 75% of the length of the slight curvature. A line extending between these points is used to determine and determine the angle α that forms the slightly curved section with the longitudinal centerline A-A of the sanitary panties 12. The rear edges 76 and 78, enclosing acute angles described with the longitudinal centerline A-A, reduce the collection, folding and displacement of the absorbent core 50 during functional use, and provide improved ability to follow the anatomical profile of the user's body and comfortable fit of the absorbent article. In addition, the acute angles just described help sanitary panties 12 to achieve a satisfactory overlap of the user's buttocks, improve their fit and eliminate unwanted leakage of absorbed body exudates. It is to be understood that, since the elastic elements 34 and 35 of the foot opening, respectively, substantially copy the course of the rear edges 76 and 78, all references and references relating to the rear edges 76 and 78 can also be used for description and interpretation of the leg opening elastic elements 34 and 35.

The predominant portion (at least 51%) of the front edges 72 and 74 of the front portions 86 and 88 of the leg openings 28 and 30 comprises portions β, which preferably exhibit a rectilinear course. More preferably, the front edge portions 72 and 74 of the front portions 86 and 88 of the leg openings 28 and 30 exhibit a substantially rectilinear course in the range of at least about 70% of the length of the whole. 99 9 9 ·· ··

98 9 9 9 · 9

99 99 99 of the front portions 86 and 88 of the leg openings 28 and 30. A substantially rectilinear section β of the front edges 72 and 74 of the front portions 86 and 88 of the leg openings 28 and 30 should be arranged such that with the longitudinal centerline AA of the sanitary panties 12 it forms an acute angle χ of about 62 ° to about 99 °, more preferably about 74 ° to about 91 °, most preferably about 85 °. The leading edges 72 and 74, at the acute angles just described with the longitudinal centerline A-A, reduce the collection, folding, and displacement of the absorbent core 50 during functional use, and provide improved ability to follow the anatomical profile of the user's body and comfortable fit. In the case where the front edges 72 and 74 of the front portions 86 and 88 of the leg openings 28 and 30 exhibit a slightly curved course (the curvature of the curvature having a radius of at least 6 inches), two points are chosen along its course to describe this curvature. wherein one of these points is positioned at about 25% of the length of the slightly curved course, and the other point is positioned at about 75% of the length of the slight curvature. A straight line extending between these points is used to determine and determine the angle χ that forms the slightly curved section with the longitudinal centerline A-A of the panty 12. Although the front edges 72 and 74 form angles of 90 ° to the longitudinal centerline, it is also possible to use angles that are at least slightly greater or at least slightly less than 90 °, thereby resulting in the formation of sanitary panties 12 s for the user comfortable and convenient fit during his physical activity. It is to be understood that, since the elastic elements 32 and 33 of the leg opening, respectively, substantially accurately follow the course of the front edges 72 and 74, all references and references relating to the front edges 72 and 74 can also be used for description and interpretation of the leg opening elastic elements 32 and 33.

Similarly, the curvature shape of the crotch region 18 is significant. The bulk of the side edges 17 and 19 of the crotch region 18 comprise sections Σ which preferably exhibit an arcuate curvature. If this arcuate curvature is too shallow, or even exhibits a straight line (especially at the ends of the crotch elastic elements 37 and 39), this may result in undesirable tension and tightness in the genital area, which may further result in the sanitary panties 12 do not conform satisfactorily anatomically, the edges and the body profile of the wearer are peeled off and the cracks are formed in the receiving thereof, resulting in a completely undesirable leakage. In addition, the limited width of the crotch region with a slight arc curvature may reduce the overlap of the user's buttocks. For the purpose of compensating for such reduction, the rear edges 76 and 78 of the rear portions 82 and 84 are preferably arranged descending downward with increasing angle angle α. The arcuate curvature between the side edges 17 and 19 of the crotch region 18 and the rear edges 76 and 78 of the rear portions 82 and The 84 foot openings 28 and 30 should be arranged so that they are slightly in front of the transverse centerline BB of the sanitary panties 12 (see Fig. 1a). This arrangement explicitly allows the rear elastic leg openings 34 and 35 to be placed below the lower buttocks and assists in preventing the undersize and undesirable movement of the sanitary panties 12 from the standard position during the user's physical activity. This means that the arcuate curved portions of the leg openings 28 and 36 in the crotch region are arranged 4 entirely just in front of the transverse centerline BB of the sanitary panties 12. It is understood that the elastic elements 37 and 39 of the leg openings in this order, they substantially copy the course of the side edges 17 and 19 that all references and references concerning the side edges 17 and 19 can also be used to describe and interpret the elastic elements 37 and 39 of the foot opening.

Although the leg opening elastic elements 32, 33, 34, and 35 may be configured to follow exactly the outer edges of the absorbent core 50 in the crotch region 18 exactly from the outside, the leg opening elastic elements 32, 33, 34, and 35 move away from the leg opening. of the absorbent core 50 such that the absorbent core 50 extends into the region of the leg opening and elastic elements 32, 33, 34, and 35 and impedes their functional action to a much lesser extent, resulting in improved fit around the leg openings 28; 30 and a leakproof seal. In addition, the leg opening elastic elements 32, 33, 34, and 35 described herein are much more capable of staying in close contact with each other and conforming to the anatomical contour of the user's body as the volume and swelling of the absorbent core 50 are absorbed.

In a preferred embodiment, the elastic waist panel elements 22 and the leg opening elastic elements 32, 33, 34, and 35 (and in embodiments including the waist opening elastic element 21) are an arrangement affixed to the panties 12 in a sandwich interposed configuration between the outer protective layer. 13 and the component also in the skin of the wearer facing the generally stretched state of the art using means known in the art, including tape-type bonding, inelastic ultrasonic scrim, pressure and heat bonding, or adhesive bonding. The crotch region elastic elements 37 and 39 are sandwiched between the barrier layer 48 and the topsheet 49 of the absorbent protective composite structure 46. The crotch region elastic elements 37 and 39 are attached characteristically in the stretched state using state of the art means comprising a bonding joint. by ultrasonic, bonding under pressure and heat, or adhesive bonding. A wide variety of materials, including but not limited to, elastic strands, rubber fibers, threads, flat rubber, elastic tape, rubber film, polyurethane, and elastomers, as well as elastomeric materials, may be used as materials suitable and useful for forming the elastic members. foamed polyurethane, linen rubber or suitable and useful materials are available from DuPont Company, commercially available in Wilmington, Delaware, under the trade name LYCRA®. Each elastic member may be formed as unitary in a single, integral whole; as a composite multi-component arrangement; or as a composite structure which is assembled prior to incorporation of the elastic member into the sanitary panties 12.

In an alternative embodiment, the elastic waist panel elements 22, the leg opening elastic elements 32, 33, 34, 35, and the crotch region elastic elements 37 and 39 (and in embodiments including the elastic waist opening element 21 as part of the assembly) are attached, respectively. to the panty 12 in a sandwich interposed arrangement between the outer protective layer 13 and to the user's skin facing layer 80 in a generally stretched state using the prior art.

4 ··

4 4 4

4 4 4

44

4 4 4

4 4 4

4 4 4

4 4 4

4,444 means, including ultrasonic bonding, pressure and heat bonding, or adhesive bonding. A wide variety of materials, including but not limited to, elastic strands, rubber fibers, threads, flat rubber, elastic tape, rubber film, polyurethane, and elastomers, as well as elastomeric materials, may be used as materials suitable and useful for forming the elastic members. tape type, foam polyurethane, linen rubber or inelastic scrim. Suitable materials for this purpose are available from DuPont Company, commercially available in Wilmington, Delaware, under the trade name LYCRA®. Each elastic member may be formed as unitary in a single, integral whole; as a composite, multi-component arrangement; or as a composite structure.

The portions of the front waist panel 14 and the rear waist panel 15 provided with the elastic body panel member 22 have a width ranging from about 1 inch (25 mm) to about 10 inches (254 mm) (perpendicular to the longitudinal centerline) AA, see the illustration in Fig. 1a). More typically, the portions of the front waist panel 14 and the rear waist panel 15 provided with the elastic body panel member 22 have a width ranging from about 3 inches (76 mm) to about 8 inches (203 mm). More typically, this width may range from about 6 inches (152 mm) to about 7.5 inches (191 mm). In some embodiments of the absorbent article, it may be desirable for the width of the body member elastic member 22 disposed in the front waist panel 14 and the rear waist panel 15 to differ from one another. In the case where one of said front waist panel 14 and rear waist panel 15 has an elastic body member 22 with reduced width, · 9 9 9 9 9 9

9 9 9 9 9 9

99 99 99, this width is in the range of about 1 inch (25 mm) to about 8 inches (203 mm), more typically in the range of about 3 inches (76 mm) to about 6 inches (152 mm), and most typically in the range of from about 4 inches (102 mm) to about 5.5 inches (140 mm). The elastic body member 22 is applied in a tensile stress-stretched state, the range of which is in the range of from about 100% to about 400%, more typically in the range of from about 150% to about 300%, and most typically in the stretch under tension. in the range of about 200% to about 275%. The sanitary panties 12 may be formed such that the tensile stress of the elastic body member 22 acting in the front body member 14 has a different value compared to the tensile stress of the elastic body member 22 acting in the rear body member 15.

The elastic body member 22 may be formed of an elastic material in the form of yarns, strands, ribbons, strips, elastic film, elastic nonwoven, or composite structures. The elastic material in the form of yarns, strands, tapes or strips may be formed as a composite multi-component arrangement, or may be applied as a composite structure. The number of individual components of the elastic material included in the body member elastic member 22 is in the range of about 1 to about 100 pieces, more typically in the range of about 10 to about 40 pieces, and most typically in the range of about 15 to about 35 pieces. In the case where the elastic body member 22 is formed from strands, it is preferred that 15 to 40 strands are used to form the strand, and the elastic strands are spaced from one another in a range of about 0.0625 inches ( 1.6 mm) to about 2 inches (51 mm), more preferably in the range of about 0.0625 inches (1.6 mm) to about 0.5 inches (13 mm), and most preferably spaced about 0.25 inches apart. (6 * * · · 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 · ·· ·· mm). Although the external appearance of the sanitary panties 12 can be improved in the elastic element 22 of the body portion by improving the spacing of the individual components of the elastic material, such as strands, the spacing of the individual components of the elastic material within the elastic member may vary as required. Such variations can also be used in the front waist edge 44 and the rear waist edge 45 to provide the outer appearance of the waistband.

In a preferred embodiment, the elastic strands may be formed from any suitable elastomeric material useful herein. One useful material is a spandex elastomeric material, such as a LYCRA® type material, marketed by DuPont, based in Wilmington, Delaware. For this purpose, the conforming body member elastic element 22 comprises strands having a yarn weight (decitex, measured in g / 10,000 m) ranging from about 100 to about 1200, more typically from about 470 to about 940, and most typically, wherein the elastic body member 22 comprises about 15 to 35 strands, ranging from about 620 to about 740. Adhesive bonding and attachment of the elastic body member 22 to the outer protective layer 13 and to the skin facing the wearer layer 80 is provided with an adhesive means 74, typically applied in a molten state or in an arc pattern using currently known techniques. Preferably, the adhesive means 74 is applied only to the elastic member 22 of the body portion. Suitable adhesive compositions 74 include, for example, Findley H2096 hot melt adhesive, available from Ato Findley Adhesives, based in Milwaukee,

«* ·· ·· ··

Wisconsin.

In embodiments that include the waist opening elastic member 21, the width of the elastic member 21 ranges from about 0.0625 inch (1.6 mm) to about 2 inches (51 mm). In a more typical configuration, the front waist flange 44 of the front body portion 14 and the rear waist flange 45 of the rear body portion 15 are provided with an elastic waist opening element 21 having a width ranging from about 0.25 inch (6 mm) to about 1 inch. .5 inch (38 mm). More typically, this width is in the range of about 0.5 inch (13 mm) to about 1 inch (25 mm). The elastic waist opening member 21 is applied in the stretched state under tension, the range of which is in the range of about 150% to about 300%, more typically in the range of about 175% to about 275%, and most typically in the stretched state, the range ranges from about 200% to about 250%.

The elastic waist opening member 21 may be formed of an elastic material in the form of threads, strands, ribbons, strips, elastic film, elastic nonwoven, or a composite structure. The elastic material in the form of yarns, strands, tapes or strips may be formed as a composite multi-component arrangement, or may be applied as a composite structure. The number of discrete components of the elastic material contained in the waist opening elastic member 21 is in the range of about 1 to about 20 pieces, more typically in the range of about 2 to about 10 pieces, and most typically in the range of about 2 to about 6 pieces. . In the case where the waist opening elastic element 21 is formed from strands, it is preferred that 3 to 6 strands are used to form the elastic element and if they are

MM · «44 • 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4

44 44 44 spaced from a distance of about 0.0625 inch (1.6 mm) to about 0.25 inch (about 1.6 mm) to about

1.5 inches (38 mm), more preferably in the range of about 0.0625 inches (1.6 mm) to about 0.25 inches (6 mm), and most preferably spaced about 0.125 inches (3 mm) apart.

The elastic strands may be formed from any suitable elastomeric material useful herein. One useful material is a spandex elastomeric material, such as a LYCRA® type material, marketed by DuPont, based in Wilmington, Delaware. For this purpose, the matching waist opening elastic element 21 comprises strands having a yarn weight (decitex, measured in g / 10,000 m) ranging from about 100 to about 1200, more typically from about 470 to about 940, and not more typically. in the case where the elastic waist opening member 21 comprises about 5 to 10 strands, in the range of about 620 to about 740. For bonding to and attaching the elastic waist opening member 21 to the outer protective layer 13 and to the skin facing the wearer 80 or an adhesive means 74, typically applied in the molten state or in an arc pattern, using currently known techniques, is used for the waist overlap sheet 26. Preferably, the adhesive means 74 is applied only to the elastic waist opening element 21. Suitable adhesive compositions 74 include, for example, the Findley H2096 hot melt adhesive available from Ato Findley Adhesives, based in Milwaukee, Wisconsin.

The leg opening elastic elements 32, 33, 34, and 35 have a width ranging from about 0.0625 inch (1.6 mm) to about 1 inch (25 mm), more typically. · * 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 9 9 9 9 9

9 9 · 9 9

99 in the range of about 0.25 inch (6 mm) to about 1 inch (25 mm), and most typically in the range of about 0.25 inch (6 mm) to about 0.75 inch (18 mm). The leg opening elastic elements 32, 33, 34, and 35 are applied in a stretched range of about 100% to about 300%, more typically about 175% to about 275%, and most typically. in a stretched range having a range of about 200% to about 250%.

The leg opening elastic elements 32, 33, 34, and 35 may be formed from an elastic material in the form of threads, strands, strips, strips, elastic film, elastic nonwoven, or composite structures. The elastic material in the form of yarns, strands, tapes or strips may be formed as a composite multi-component arrangement, or may be applied as a composite structure. The number of individual components of the elastic material included in the leg opening elastic elements 32, 33, 34, and 35 is in the range of about 1 to about 6 pieces, more typically in the range of about 2 to about 5 pieces, and most typically in the range. from about 3 to about 4 pieces. Where elastic elements are present

32, 33, 34, a leg opening formed from strands is preferred when 1 to 6 strands are used to form the elastic members, and the strands are spaced apart from about 0.0625 inch (1). 6 mm) to about 0.5 inches (13 mm), more preferably in the range of about 0.0625 inches (1.6 mm) to about 0.25 inches (6 mm), and most preferably at a distance of about 0.125 inches ( 3 mm).

The strands of any elastomeric elastic members may be formed of a suitable and usable material. One useful material is

53 - 9 • 9 • • • 9 9 • 9 9 » 9 • 9 · » • 9 99 • 9 9 9 9 9 9 9 · 9 9 9 9 «9 9 9 99 99 9 99 9 *

a spandex elastomeric material, such as the LYCRA® type, available from DuPont, based in Wilmington, Delaware. Appropriate elastic foot aperture elements 32, 33, 34, and 35 include strands having a yarn weight fineness (decitex, measured in g / 10,000 m) ranging from about 470 to about 1200, more typically from about 620 to about 1200. 1000, and most typically, when the leg opening elastic elements 32, 33, 34, and 35 comprise about 3 to 6 strands, in the range of about 740 to about 940. For bonding and fastening the elastic elements 32, 33, 34, and 35 of the leg opening to the outer protective layer 13 and the skin facing the wearer 80, the absorbent protective composite structure 46, or the leg opening overlay 38, an adhesive 74 is applied, typically applied in a molten state or curved raster using currently known techniques. Preferably, the adhesive means 74 is applied only to the elastic elements 32, 33, 34, and 35 of the foot opening. Suitable adhesive compositions 74 include, for example, the Findley H2096 hot melt adhesive available from Ato Findley Adhesives, based in Milwaukee, Wisconsin.

The crotch elastic elements 37 and 39 have a width ranging from about 0.0625 inch (1.6 mm) to about 1 inch (25 mm), more typically in the range of about 0.25 inch (6 mm). to about 1 inch (25 mm), and most typically ranging from about 0.25 inch (6 mm) to about 0.75 inch (18 mm), for example, a width of 0.5 inch (13 mm). The crotch elastic elements 37 and 39 are applied in a stretched range of about 100% to about 300%, more typically about 150% to about 275%, and 99%. 9 9 9 9 9 4 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 in a stretched range in the range of about 200% to about 250%.

The elastic crotch elements 37 and 39 may be formed of an elastic material in the form of yarns, strands, ribbons, strips, elastic film, elastic nonwoven, or composite structures. The elastic material in the form of yarns, strands, strips or strips may be formed as a composite multi-component arrangement, or may be applied as a composite structure. The number of individual components of the elastic material contained in the crotch elastic elements 37 and 39 ranges from about 1 to about 6 pieces, more typically from about 2 to about 5 pieces, and most typically from about 3 to about 4 pieces. pieces. In the case where the elastic crotch elements 37 and 39 are formed from slivers, it is preferred that 1 to 6 slivers are used to form the elastic elements and that the slivers are spaced apart from one another in the range of about 0, 0625 inches (1.6 mm) to about 0.5 inches (13 mm), preferably in the range of about 0.0625 inches (1.6 mm) to about 0.25 inches (6 mm), and most preferably in mutual relationship a distance of about 0.125 inches (3 mm).

The strands of elastic members may be formed of any suitable and usable elastomeric material. One useful material is a spandex elastomeric material, such as a LYCRA® type material, marketed by DuPont, based in Wilmington, Delaware. Suitable crotch region elastic elements 37 and 39 include strands having a yarn weight (decitex, measured in g / 10,000 m) ranging from about 470 to about 1200, more typically from about 620 to about 1000, and not more typically, for

• ·· ·· ·· ·· ·· • • 9 · • • • • • • • • ·· • • • • • ··· • «·· • · « • • · * · • • • • ··

wherein the crotch elastic elements 37 and 39 comprise about 3 to 6 strands, ranging from about 740 to about 940. For bonding and attaching the crotch area elastic elements 37 and 39 to the outer protective layer 13 and to the absorbent protective composite structure 46, or an adhesive means 74, typically applied in a molten state or in an arc pattern, using currently known techniques, is used to cover the leg opening overlay 38. Preferably, the adhesive means 74 is applied only to the crotch elastic elements 37 and 39. Suitable adhesive compositions 74 include, for example, the Findley H2096 hot melt adhesive available from Ato Findley Adhesives, based in Milwaukee, Wisconsin.

In one embodiment, to provide a convenient and comfortable fit around the leg openings 28 and 30, and to provide a summary and contraction of the side crotch region of the crotch-like configuration around the absorbent core 50, the elastic members 32, 33, 34 are elastic. and a leg opening 35 applied to and secured to the outer protective layer 13 in a stretched range of about 200% to about 250%. The crotch elastic elements 37 and 39 are arranged in a sandwich insertion between the barrier layer 48 and the topsheet 49 in a stretched tension of about 200%. For the application of the leg opening elastic elements, it is preferred that the front leg opening elastic elements 32 and 33 are in a different extension range than the rear leg opening elastic elements 34 and 35, and further, when the elastic elements are attached to the outer protective layer 13. In one particular embodiment, the front •

the leg opening elastic elements 32 and 33 are located under tension under tension that is less than the rear leg opening elastic elements 34 and 35.

In another embodiment, which provides a convenient and comfortable fit around the leg openings 28 and 30 and the contraction of the sides of the crotch region 18 to form a cradle-type saddle arrangement around the absorbent core 50, the leg openings 32, 33, 34, and 35 are elastic and elastic. the crotch region elements 37 and 39 applied to and attached to the outer protective layer 13 in a stretched range of about 200% to about 250%. For the application of the leg opening elastic elements, it is preferred that the front leg opening elastic elements 32 and 33 are in a different extension range than the rear leg opening elastic elements 34 and 35, and the elastic elements are attached to the outer protective layer 13. In one In a particular embodiment, the front leg opening elastic members 32 and 33 are under tension under tension that is less than the rear leg opening elastic members 34 and 35.

In embodiments that have elastic elements surrounding the leg openings 28 and 30 and a crotch region 18 arranged in three segments (wherein the three segmented elastic members comprise front leg openings 32 and 33, rear leg openings 34 and 35, and the crotch region elastic elements 37 and 39) are the front elastic crotch region elements 32 and 33 and the stretched crotch region elements 37 and 39 are stretched to a lesser extent than the rear leg opening elastic elements 34 and 35. Preferably, the front leg opening elastic elements 32 and 33 and the crotch region elastic elements 37 and 39 are stretched to about 200%, and the rear leg opening elastic elements 34 and 35 are stretched to about 250%. The three-segment split arrangement of the elastic members and the different tensile stresses explicitly allow improved fit, less strain in the user's genitalia, and less agglomeration and accumulation in the crotch region 18 due to the high degree of contraction of the elastic leg opening elements. The rear elastic leg openings 34 and 35 are extensively stretched under tension to assist in maintaining the seat portion of the panty 12 in position and prevent it from slipping during movement during use, and to stabilize the position of the absorbent core 50 and maximize elimination of its displacement, which in turn results in undesirable leakage and inconvenience of the sanitary panties during its functional use.

In embodiments having elastic elements surrounding the leg openings 28 and 30 arranged in three segments, as shown in FIG. 1a (showing the arrangement described below for the crotch region elastic 39 and the leg opening elastic elements 32 and 35), the active portions of the crotch region elastic elements 37 and 39 partially overlap with the active portions of the leg opening elastic elements 32, 33, 34, and 35 . Actively active leg opening sections 32, 33, 34 and 35 and crotch region elastics 37 and 39 (as well as waist opening elastic elements 21 and body part elastic elements 22) are defined as elastic element sections that apply to the respective areas The absorbent article 10 has a pulling force.

• · ··· ··· ·· ·· ·· ··

In another embodiment, having elastic elements surrounding the leg openings 28 and 30 arranged in three segments, and shown in FIG. 1a, the active portion of the crotch region elastic element 37 overlaps the active portion of the rear leg opening elastic element 34, but at the same time does not overlap the active portion of the front leg opening elastic element 33. This arrangement or overlap causes the spacing 90 to form in the configuration of the elastic elements surrounding the leg opening 30 in the front body portion 14. The size of the spacing 90 can range from about 3 inches (76 mm) to about 0.125 inches ( 3 mm), more typically in the range of about 2 inches (51 mm) to about 0.25 inches (6 mm), and most typically in the range of about 1 inch (25 mm) to about 0.5 inches (13 mm).

Said gap comfort fit of the panties 12 spacing 90 and a more comfortable reduction provides the wearing of hygienic stiffness of the mating or abrasion which may be caused by the presence and action of the front elastic leg opening elements 32 and 33 and the crotch elastic elements 37 and 39 during functional use. in combination with certain shape configurations of the anatomical contour, its sizes, and physical activity of the wearer ' s body, the lower portion 42 of the front body portion is smooth, thereby providing a more discreet design of the sanitary panties 12.

dimensional

Addition

Another embodiment having elastic elements surrounding the leg openings 28 and 30 arranged in three segments is shown in FIG. 1b, wherein in this embodiment the active portion of the elastic crotch 39 overlaps the crotch region

The active portion of the front leg opening elastic element 32, but does not overlap the active portion of the rear leg opening elastic element 35, does not overlap. This arrangement or overlap causes the spacing 92 to be formed in the arrangement of the elastic elements surrounding the leg opening 28 in the rear body part 15. The size of the spacing 92 can range from about 3 inches (76 mm) to about 0.125 inches ( 3 mm), more typically in the range of about 2 inches (51 mm) to about 0.25 inches (6 mm), and most typically in the range of about 1 inch (25 mm) to about 0.5 inches (13 mm) .

Said spacing 92 provides for a more comfortable fit and more comfortable fit of the sanitary panties 12 by reducing the stiffness of the mating or abrasion that may be caused by the presence and action of the rear leg opening elastic elements 34 and 35 and the crotch region elastic elements 37 and 39 during functional use. in combination with certain shape configurations of the anatomical outline, its dimensional sizes, and physical activity of the user's body. In addition, the lower portion 43 of the rear body portion is smooth, which results in a more discreet embodiment of the sanitary panties 12.

Another embodiment having elastic elements surrounding the leg openings 28 and 30 arranged in three segments is shown in FIG. 1b, wherein in this embodiment the active portion of the elastic crotch element 37 does not overlap the active portion of the front leg opening elastic element 33, nor does the active portion of the rear leg opening elastic element 34. This arrangement, or overlap, is the cause of creation

9 9 9 gap spacing 90 and 92 in the arrangement of elastic elements surrounding the leg openings 28 and 30, respectively, in the front body part 14 and in the rear body part 15. Dimensional spacing sizes spacing 90 and 92 may range from about 3 inches (76 mm) to about 0.125 inches (3 mm), more typically in the range of about 2 inches (51 mm) to about 0.25 inches (6 mm), and most typically. ranging from about 1 inch (25 mm) to about 0.5 inch (13 mm).

Said spacing 90 and 92 provide a more comfortable fit and a more comfortable fit of the sanitary panties 12 by reducing the stiffness of the mating or abrasion which may be caused by the presence and action of the elastic elements 32, 33, 34 and 35 of the foot opening and the elastic elements 37 and 39 crotch during functional use in combination with certain shape configurations of the anatomical contour, its size, and physical activity of the user's body. In addition, the lower portion 43 of the rear body portion is smooth, which results in a more discreet embodiment of the sanitary panties 12.

In an embodiment having elastic elements surrounding the leg openings 28 and 30 (see Fig. 2a) arranged in two segments (wherein the two segmented elastic elements comprise front leg openings 32 and 33, and rear leg openings 34 and 35 the leg elastic elements 32 and 33 are stretched under tension in a range less than the leg elastic elements 34 and 35. In a preferred embodiment, the front leg opening elastic elements 32 and 33 are stretched to about 200%, while the rear leg opening elastic elements 34 and 35 are stretched to about 250%. Two-segment split layout • ·

The elastic members and the different tensile stresses explicitly allow for improved fit, less strain in the user's genitalia, and less agglomeration and accumulation in the crotch region 18, due to the high degree of contraction of the elastic leg opening elements. The rear elastic leg openings 34 and 35 are extensively stretched under tension to assist in maintaining the seat portion of the panty 12 in position and prevent it from slipping during movement during use, and to stabilize the position of the absorbent core 50 and maximize elimination of its displacement, which in turn results in undesirable leakage and inconvenience of the sanitary panties during its functional use.

Another embodiment having elastic elements surrounding the leg openings 28 and 30 arranged in three segments is shown in FIG. 1c, wherein the active portion of the front leg opening elastic member 32 does not overlap the active portion of the rear leg opening elastic member 35 in this embodiment. This arrangement, or overlapping, causes a spacing 102 in the arrangement of elastic elements surrounding the leg opening 28 located at the top of the leg opening 28, either in the front body portion 14, in the rear body portion 15, or both. The dimensions of the spacing 102 may range from about 3 inches (76 mm) to about 0.125 inches (3 mm), more typically in the range of about 2 inches (51 mm) to 15 inches (51 mm). about 0.25 inch (6 mm), and most typically ranging from about 1 inch (25 mm) to about 0.5 inch (13 mm). This spacing 102 provides a more comfortable fit and a more comfortable fit for the sanitary panties 12. By reducing the stiffness of the bond or abrasion which may be caused by the presence and action of the leg opening elastic elements 32, 33, 34 and 35 and the crotch region elastic elements 37 and 39 during functional use in combination with certain shape configurations of the anatomical outline, its dimensional sizes, and physical activity of the user's body. In addition, the spacing 102 provides for a more discreet embodiment of the sanitary panties 12 with respect to the omission of the underpants of the panties in the upper portion of the user's leg wrap.

In embodiments having elastic elements surrounding the leg openings 28 and 30 arranged in two segments, the active portions of the front leg openings 32 and 33 may overlap the active portions of the leg openings 34 and 35, as can be seen in Figs. . 2a (which illustrates such a configuration of the leg opening elastic element 32 and the leg opening elastic element 35).

Another embodiment having elastic elements surrounding the leg openings 28 and 30 arranged in two segments is shown in FIG. 2a, wherein in this embodiment the active portion of the front leg opening elastic element 33 does not overlap the active portion of the rear leg opening elastic element 34. This arrangement or overlap causes the spacing 94 to form in the configuration of the elastic elements surrounding the leg opening 30 in the front body portion 14. The dimensional spacing 94 may range from about 3 inches (76 mm) to about 0.125 inches (3). mm), more typically in the range of about 2 inches (51 mm) to about 0.25 inches (6 mm), and most typically

ranging from about 1 inch (25 mm) to about 0.5 inch (13 mm).

provides the achievement of wearing hygienic stiffness of each other

Said spacing 94 for a more comfortable fit and more comfortable panty 12 by reducing the binding or abrasion that may be caused by the presence and action of the leg opening elastic elements 32, 33, 34 and 35 during functional use in combination with certain shape configurations of the anatomical contour, its size , and movement users.

body activity

Another embodiment having elastic elements surrounding the leg openings 28 and 30 arranged in two segments is shown in FIG. 2a, wherein in this embodiment the active portion of the front leg opening elastic element 32 does not overlap the active portion of the rear leg opening elastic element 35. This arrangement, or overlapping, causes a gap spacing 104 in the arrangement of elastic elements surrounding the leg opening 28 located at the top of the leg opening 28, either in the front body portion 14, in the rear body portion 15, or both. The size of the spacing 102 may range from about 3 inches (76 mm) to about 0.125 inches (3 mm), more typically in the range of about 2 inches (51 mm) to 20 inches. about 0.25 inch (6 mm), and most typically ranging from about 1 inch (25 mm) to about 0.5 inch (13 mm). This spacing 104 provides a more comfortable fit and more comfortable fit of the sanitary panties 12 by reducing the stiffness of the mating or abrasion that may be caused by the presence and action of the leg opening elastic elements 32, 33, 34 and 35 and the crotch region elastic elements 37 and 39 during Functional use in combination with certain shape configurations of the anatomical contour, its dimensional sizes, and physical activity of the user's body. In addition, the spacing 102 provides for a more discreet embodiment of the sanitary panties 12 with respect to the omission of the underpants of the panties in the upper portion of the user's leg wrap.

In an embodiment having an arrangement of elastic elements surrounding the leg openings 28 and 30 (see Fig. 3) in only a single segment (wherein the single segment of elastic elements are the leg openable elastic member 96 and the leg openable elastic member 98), the apertures are in a tension range of from about 100% to about 300%, more typically in the range of from about 175% to about 275%, and most typically in the range of from about 200% to about 250% .

The elastic body member 22 surrounding the circumferential front body member 14 and the rear body member 15 of the panty 12 operates independently of the other elastic members and is intended to adapt to different configurations of the anatomical contour profile of the body and the type of user figure. This arrangement provides a soft, close-fitting, and comfortable fit over a range of hip sizes in terms of tactile sensation. In embodiments comprising the elastic waist opening element 21, the elastic waist opening element 21 is applied to a greater extent with greater spacing between the individual components of the elastic member and a larger cross-sectional area as compared to the elastic body member 22,

· T t t t t t t

As a result, the sanitary panties 12 have a rounded shape configuration that provide good fit and fit in the waist region for a wide range of aspect ratio waist to hip sizes. The stretching of the elastic element 22 in the front body portion 14 may be different from the stretching of the elastic element 22 in the rear body portion 15.

Advantageously, an elastic body member 22 is arranged in the front body portion 14 independently of and at a distance from the front leg opening elastic elements 32 and 33. The elastic body member 22 arranged in the rear body member 15 is in turn positioned independently of and at a distance from the rear elastic members 34 and 35 of the foot opening. The distance between the elastic body member 22 and the leg opening elastic members 32, 33, 34, and 35 may range from about 0.125 inches (3 mm) to about 3 inches (76 mm), more typically in the range of about 0.25 inches (6 mm) to about 2 inches (51 mm), and even more typically ranging from about 0.25 inches (6 mm) to about 1.5 inches (38 mm). It is not necessary that said spacing of the elastic members in the front waist panel 14 and the back waist panel 15 be of the same size. However, the elastic element (s) 22 of the body member, disposed in either or both of the front body member 14 and the rear body member 15, respectively, may adjoin, respectively, the front or rear elastic members 32, 33, 34, and 35 of the foot opening.

In embodiments in which an elastic waist opening member 21 is present, it is preferred that the body member elastic member 22 is arranged independently of and at a distance from the elastic waist opening member 21 and the leg opening elastic members 32, 33, 34, and 35. .

· 9 ♦ * · ♦

9 9 ·

9 9 9 · 99

However, the elastic body member 22, provided in either or both of the front body member 14 and the rear body member 15, may, in a correspondingly appropriate configuration, abut either the elastic waist opening member 21 or the elastic waistband member. or all of these elastic elements, the elastic body member 22 abutting at least a portion of the elastic elements 32, 33, 34, and 35 of the foot opening.

In sanitary panty sizes sized from about 36 inches (914 mm) to about 45 inches (1143 mm) for comfortable fit in the hip region, the elastic body portion 22 in the front body portion 14 has a width of about 4 inches. (102 mm) and a width of about 6.25 inches (159 mm) in the rear body portion 15. The elastic body member 22 may be spaced from the rim of the body members at a distance of from about 0.0625 inch (1.6 mm) to about 0.5 inch (13 mm). Preferably, the elastic body member 22 may be spaced from the rim of the body members at a distance of about 0.0625 inch (1.6 mm) to about 0.25 inch (6 mm). Even more preferably, the elastic body member 22 may be spaced about 0.125 inches (3 mm) relative to the skirt edge of the body members.

The absorbent protective composite structure 46, which extends from the crotch region 18 into the front and / or rear waist panels 14 and 15 toward the waist opening 20, conforms to the anatomical contour of the wearer ' s body by the force applied by the elastic elements 22 of the respective body panels. The transition between the lower body portion 42 and the upper body portion 40 of the body portion as well as the transition between the lower body portion the rear body portion 43 and the rear body portion 41 is smooth in this state.

In embodiments in which the waist opening elastic elements 21 are provided, it is desired that the waist opening elastic elements 21, in comparison with the body part elastic elements 22, in the upper portion 40 of the front body portion and the upper portion 41 of the rear body portion, tensile stress per unit width to ensure adequate fit and comfortable fit in the waist region for a wide range of waist-to-hip proportions of different configurations of the anatomical contour profile of the user's body. In a preferred embodiment, in order to achieve and ensure a snug and comfortable fit in the region of the waist opening 20 while providing a smooth and balanced transition from the upper portion 40 of the front body to the front waist edge 44 and the upper portion 41 of the rear body to the rear waist edge 45, the tensile stress applied in the elastic elements 21 of the waist opening in size matched to the tensile stress applied in the elastic elements 22 of the body parts. However, the tensile stresses acting in the waist opening elastic elements 21 and the body part elastic elements 22, as well as the number of individual components of the LYCRA® spandex elastomeric material used therein, may vary.

In the front body portion 14 and the rear body portion 15, the leg opening overlap 38, the waist opening overlap 26, and / or the top face layer 49 may extend to overlap the inner surface area of the waist portions 14 and 15. In the following version with • »· • · 9

The leg opening overlay 38, the waist opening overlay 26, and / or the topsheet 49 may exclude from the central portion of the crotch region 18 that is overlaid by the absorbent protective composite structure 46. In embodiments in which an absorbent protective composite structure 46 arranged in the waist panels 14 and 15 overlaps the skin facing the user's skin 80, the absorbent protective composite structure 46 is disposed on and attached to the top of any arbitrarily disposed cover layer 80 such that that it is in direct contact with the user's skin. However, this overlapping portion of the absorbent protective composite structure 46 may further be sandwiched between the outer protective layer 13 and the skin facing the wearer 80.

For embodiments of the absorbent article provided with body member elastic elements 22, leg opening elastic elements 32, 33, 34, and 35, and crotch elastic elements 37 and 39, the following particular range of tensile stresses applied to the elastic elements 22, 32, 33 are applied. , 34, 35, 37, and 39 - see Table I below:

Table I

Range of magnitude of tensile stresses acting in elastic elements 22,32,33,34,35,37,39 [in grams / 10 mm width] Type elastic Acceptable range Conveniently range Maximum preferred range element Lower Upper Lower Upper Lower Upper limit limit limit limit limit limit Element 22 10 150 30 100 ALIGN! 45 75 Element 32,33,34,35 20 May 400 80 220 120 180 Element 37.39 20 May 400 80 220 120 180

For the embodiment of the absorbent article having elastic waist opening elements 21, body elastic elements 22, leg opening elastic elements 32, 33, 34, and 35, and crotch elastic elements 37 and 39, the following specific range of tensile stresses applied in these absorbent articles is applied. elastic elements 21, 22, 32, 33, 34, 35, 37, and 39 - see Table II below:

4 »

ΊΟ

• 4 4

• 4 4 4

44

44 * 4 *

4 4 4

4 4 4

· 4

Table II

Range of magnitude of tensile stresses acting In elastic elements 21,22,32,33,34,35,37,39 [in grams / 10 mm width] Type elastic element Acceptable range Preferred range Maximum preferred range Lower limit Upper limit Lower limit Upper limit Lower limit Upper limit Element 21 30 300 50 200 100 ALIGN! 175 Element 22 10 150 20 May 100 ALIGN! 40 60 Element 32,33,34,35 20 May 400 80 220 120 180 Element 37.39 20 May 400 80 220 120 180

The tensile stresses applied in the elastic waist opening members 21, the body elastic members 22, the crotch elastic members 37 and 39, and the leg opening elastic members 32, 33, 34, and 35 were determined as follows. Test specimens having dimensions: width 10 mm and length 51 mm were subjected to test testing for each individual type of elastic member 21, 22, 32, 33, 34, and 35. The tensile stresses recorded in Table I and Table II are in grams per 10 mm of width. In cases where the size of the test sample subjected to the test differs from a width of 10 mm, the measured value shall be converted to a width of 10 mm. The respective tensile stresses are measured during the first broaching phase. 4 4 · 44 ·· · 4 44 • «• 4« 94 4

9 44 4 4 4 4 4 «« 4 44 * 49 4

44 4 4 44 4 «4 44 44 44 to 100% stretching at normal room temperature and humidity values.

On the inside or outside of the sanitary panties 12, or flat by placing the respective side edges 60, 62, 66, and 68 of the front and rear waist panels against each other, airtight closure joints or side skirts 64 and 70 may be formed which the underpants 12 give a final appearance, wherein the side flanges 64 and 70 are formed so as to be visible through the wearer's outer garment. Optionally, the side edges 60, 62, 66, and 68 of the front and rear waist panels do not overlap each other, are formed as planar sections and extend outwardly in the transverse direction. Said side flanges 64 and 70 should be made as narrow as possible, but must, at the same time, to allow frequent stretching and tightening of the panties during a 24 hour period without causing undesirable cracks or any other damage, simultaneously have sufficient strength. Suitable lateral sealed closure joints or side skirt seals are described in detail in U.S. Pat. No. 4,610,681 to Strohbeen et al., Issued September 9, 1986; US 4,641,381, Heran et al., Issued Feb. 10, 1987; and US 4,646,362, Heran et al., issued Mar. 3, 1987, the entire disclosure of which is hereby incorporated by reference and incorporated into the present invention.

The side skirt flanges 64 and 70 of the outer protective layer 13 are joined and sealed using well known means and techniques known in the art, such as ultrasonic bonding, for example.

I 9 · »

I 9 9 9 bonding by stitching under pressure and heat, or adhesive bonding. The achievable maximum strength of these side skirts depends on the materials used, the bond structure, the bond width, and the method of adjusting the residence time in the functional position, the applied force and the applied pressure. In order to provide suitable flanging flanges which are usable for this purpose, in order to obtain a flange flange rigidity that does not even cause undesirable cracks, or

tear in functional ultrasound to a larger extent, or even to them opening during use, typical uses \ stamping connection Lateral obrubové rims 64 and 70 can further report

non-bonded portions arranged on the outside of the bonding region to provide a soft, unpaved edge on each side flange 64 and 70. The size and width of these bonded not bonded portions may range from about 0 to about 13 mm, more preferably in the range of about 1 mm to about 6 mm, and most preferably in the range of about 2 mm to about 3 mm. Alternatively, the overall width of the side skirt (i.e., the width of the bonded portion and the width of the bonded portion) may be less than about 0.6 inches (15 mm). When the side skirt is provided with a specific bead or is cut off in close proximity to the outer edge of the binding area, a sharp edge is formed along the edge of the side skirt, which can either get caught on the outer garment or cause unwanted and unpleasant irritation user skin.

From the foregoing detailed description of individual embodiments of the present invention, those familiar with the present invention must be familiar with the invention. It will be apparent to those skilled in the art that various variations and modifications may be made thereto without departing from the spirit of the invention. At the same time, it is intended that all such other variations and modifications are within the scope of the present invention, as defined and defined in the appended claims.

Claims (43)

PATENT CLAIMS 1. Hygiene disposable underpants comprising: (a) an outer protective layer comprising a front waist panel (14), a back waist panel (15) and a crotch region (18) disposed therebetween, the interconnection of the front waist panel (14) and the rear waist panel (15) together forming a waist opening (20) and two leg openings (28, 30); (b) an absorbent protective composite structure (46) associated with the crotch region (18) and having a liquid impervious layer, a liquid permeable layer, and an absorbent core (50); and that (c) the outer protective layer (13) comprises a front elastic foot opening (32, 33), a rear elastic foot opening (34, 35), and an elastic crotch region (37, 39) disposed around each of the foot openings (28, 30) forming a gathered shirring of each of said leg openings (28, 30), and an elastic body member (22) disposed around the front body (14) and the rear body member (15) to form the gathered shirring, front and rear, body parts (14, 15). Disposable sanitary panties according to claim 1, characterized in that the absorbent protective composite structure (46) extends substantially to the same extent as the crotch region (18). • • · • · * ·· • • ·· <· »> • • ·· • • • t ·· • • ♦ « 4 • r * • · • • • fc ··· • t · · » ·· ·· Disposable sanitary panties according to claim 1, characterized in that the absorbent core (50) consists of: fibrous pulp; superabsorbent material; blown fibrous materials; adhesives; stabilizing agents; non-absorbent fibrous materials; foam; and mixtures thereof. The disposable sanitary panties of claim 2, wherein the absorbent core (50) is formed from a material selected from the group consisting of: fibrous pulp; superabsorbent material; blown fibrous materials; adhesives; stabilizing agents; non-absorbent fibrous materials; foam; and mixtures thereof. The disposable sanitary panties of claim 1, wherein the absorbent protective composite structure (46) overlaps a portion of the front waist panel (14) and a portion of the back waist panel (15). Disposable sanitary panties according to claim 1, characterized in that the absorbent core (50) has a total absorbency of at least 100 grams. Disposable sanitary panties according to claim 5, characterized in that the absorbent core (50) has a total absorbency of at least 100 grams. Disposable sanitary panties according to claim 6, characterized in that the absorbent core (50) has a total absorbent capacity of • ·· • ·· • • 4 ♦ · ·· • • 44 • • • • • ·· 9 * 4 • • • • • • · • • • • ··· ♦ · 9 · ·· 44 ranging from about 100 grams to about 1500 grams. The disposable sanitary panties of claim 1, wherein the front elastic leg opening elements (32, 33), the rear elastic leg opening elements (34, 35), the crotch elastic elements (37, 39), and the elastic elements (22) of the body parts are attached to the sanitary panties by means of an adhesive means which is applied directly to the elastic elements. The disposable sanitary panties of claim 1, wherein each leg opening (28, 30) comprises a back portion (82, 84) having a back edge (76, 78), each of said back edges (76). , 78) is substantially rectilinear and forms an angle with the longitudinal centerline (A-A) of the sanitary panties in the range of about 55 ° to about 87 °. The disposable sanitary panties of claim 1, wherein each leg opening (28, 30) comprises a front portion (86, 88) having a leading edge (72, 74), each of said leading edges (72). 74) is substantially rectilinear and forms an angle of about 62 ° to about 99 ° with the longitudinal centerline (AA) of the sanitary panties. The disposable sanitary panties of claim 10 wherein each leg opening (28, 30) comprises a front portion (86, 88) having a leading edge (72, 74), each of said leading edges (72). 74) is substantially rectilinear and forms an angle with the longitudinal centerline (AA) of the sanitary panties, 77 having a size ranging from about 62 ° to about 99 °. The disposable sanitary panties of claim 1, further comprising an elastic waist opening element (21) disposed around the waist opening (20) to form a gathered shirring around the waist opening (20). The disposable sanitary panties of claim 12, further comprising an elastic waist opening element (21) disposed around the waist opening (20) to form a gathered shirring around the waist opening (20). Disposable sanitary panties according to claim 13, characterized in that the elastic element (21) of the waist opening (20) exhibits a tensile stress therein which is greater than the tensile stress per unit width acting in the elastic element (22). body part. Disposable sanitary panties according to claim 14, characterized in that the elastic element (21) of the waist opening (20) has a tensile stress applied therein which is greater than the tensile stress per unit width acting in the elastic element (22). body part. Disposable sanitary panties according to claim 15, characterized in that the rear elastic leg opening (34, 35) has a tensile stress applied thereto that is greater than the tensile stress per unit of width acting in the elastic member (37). 39) a crotch region or in a front leg opening elastic member (32, 33). The disposable sanitary panties according to claim 16, wherein the rear elastic leg opening (34, 35) exhibits a tensile stress applied thereto that is greater than the tensile stress per unit width acting in the elastic member (37). 39) a crotch region or in a front leg opening elastic member (32, 33). Disposable sanitary panties according to claim 17, characterized in that the elastic body element (22) arranged around the perimeter of the sanitary panties extends from the waist opening (20) to the leg openings (28, 30). Disposable sanitary panties according to claim 18, characterized in that the elastic body element (22) arranged around the perimeter of the sanitary panties extends from the waist opening (20) to the leg openings (28, 30). Disposable sanitary panties according to claim 17, characterized in that the elastic body member (22) arranged around the perimeter of the sanitary panties extends from the waist opening (20) and is separate from the elastic member (32, 33). 34, 35) of the foot aperture by a spacing of at least about 0.25 inches. Disposable sanitary panties according to claim 18, characterized in that the elastic body element (22) arranged around the perimeter of the sanitary panties extends from the waist opening (20) and is separate from the elastic element (32, 33). 34, 35) of the foot aperture by offset at least about 0.25 inches. The disposable sanitary panties according to claim 22, wherein the front elastic leg opening (32, 33) and the crotch region elastic member (37, 39) are arranged around each leg opening (28, 30) and define the gap spacing (90) between them. Disposable sanitary panties according to claim 22, characterized in that the rear leg elastic element (34, 35) and the crotch region elastic element (37, 39) are arranged around each leg opening (28, 30) and define the gap spacing (92) between them. Disposable sanitary panties according to claim 23, characterized in that the rear elastic leg opening element (34, 35) and the crotch region elastic element (37, 39) are arranged around each leg opening (28, 30) and define the gap spacing (92) between them. Disposable sanitary panties according to claim 18, characterized in that the front elastic leg opening (32, 33) forms a multi-component arrangement of the individual, mutually independent elastic strands; the rear elastic leg opening element (34, 35) forms a multi-component arrangement of the individual, mutually independent elastic strands; and an elastic body member (22) of a multicomponent arrangement of individual, mutually independent elastic strands, the elastic strands being spaced from one another to about 13 mm in the region of the leg openings and the body portion. . The disposable sanitary panties of claim 1, wherein the crotch region (18) is wider than the absorbent core (50). The disposable sanitary panties of claim 27, wherein the crotch region (18) is dimensioned such that its width is at least about 6 mm greater than the width of the absorbent core (50). The disposable sanitary panties of claim 28, wherein the crotch region (18) has a width of at least about 102 mm. 30. Hygiene disposable panties comprising: (a) an outer protective layer comprising a front waist panel (14), a back waist panel (15) and a crotch region (18) disposed therebetween, the joints of the front waist panel (14) and the rear waist panel (15) forming together a waist opening (20) and two leg openings (28, 30), each of said leg openings (28, 30) consisting of a front portion (86, 88) having a front edge (72, 74) and a rear portion (82) 84) having a rear edge (76, 78); (b) an absorbent protective composite structure (46) associated with the crotch region (18) and having a liquid impervious layer, a liquid permeable layer, and an absorbent core (50); and that (c) a predominant portion of the length of the trailing edge (76, 78) of the trailing portion (82, 84) of each of the leg openings (28, 30) is rectilinear, the rectilinear section forming an angle with the longitudinal centerline (AA) of the sanitary panties. having a size in the range of about 55 ° to about 87 °; and (d) a predominant portion of the front edge length (72, 74) of the front portion (86, 88) of each of the leg openings (28, 30) is rectilinear, wherein the rectilinear portion forms an angle with the longitudinal centerline (AA) of the sanitary panties. the size of which ranges from about 62 ° to about 99 °. Disposable sanitary panties according to claim 30, characterized in that the outer protective layer (13) comprises a front elastic foot opening (32, 33), a rear elastic foot opening (34, 35), and an elastic element (13). 37, 39) a crotch region positioned around each of the leg openings (28, 30) to form a gathered shirring of each of these leg openings (28, 30), and an elastic body member (22) positioned around the front body member (14); a rear body member (15) for forming gathered shirring of these front and rear body members (14, 15) The disposable sanitary panties of claim 31, further comprising an elastic waist opening element (21) disposed around the waist opening (20) to form a gathered shirring around the waist opening (20). ·· · 4 * V '> · · 1 Disposable sanitary panties according to claim 32, characterized in that the elastic element (21) of the waist opening (20) exhibits a tensile stress therein which is greater than the tensile stress per unit width acting in the elastic element (22). body part. Disposable sanitary panties according to claim 33, characterized in that the rear elastic leg opening (34, 35) exhibits a tensile stress applied thereto that is greater than the tensile stress per unit width acting in the elastic member (37). 39) a crotch region or in a front leg opening elastic member (32, 33). Disposable sanitary panties according to claim 34, characterized in that the elastic body element (22) arranged around the perimeter of the sanitary panties extends from the waist opening (20) to the leg openings (28, 30). Disposable sanitary panties according to claim 34, characterized in that the elastic body member (22) arranged around the perimeter of the sanitary panties extends from the waist opening (20) and is separate from the elastic member (32, 33). 34, 35) of the foot aperture by a spacing of at least about 0.25 inches. Disposable sanitary panties according to claim 32, characterized in that the front elastic leg opening element (32, 33) and the crotch region elastic element (37, 39) are arranged around each leg opening (28, 30) and define spacing (90). Disposable sanitary panties according to claim 32, characterized in that the rear elastic leg opening (34, 35) and the crotch region elastic (37, 39) are arranged around each leg opening (28, 30) and define the gap spacing (92) between them. Disposable sanitary panties according to claim 37, characterized in that the rear elastic leg opening element (34, 35) and the crotch region elastic element (37, 39) are arranged around each leg opening (28, 30) and define the gap spacing (92) between them. Disposable sanitary panties according to claim 30, characterized in that the front elastic leg opening (32, 33) forms a multi-component arrangement of individual elastic strands independent of each other; the rear elastic leg opening element (34, 35) forms a multi-component arrangement of the individual, mutually independent elastic strands; and an elastic body member (22) of a multicomponent arrangement of individual, mutually independent elastic strands, the elastic strands being spaced from one another to about 13 mm in the region of the leg openings and the body portion. . Disposable sanitary panties according to claim 30, characterized in that the crotch region (18) is wider than the absorbent core (50). • 9 9 The disposable sanitary panties of claim 41, wherein the crotch region (18) is dimensioned such that its width is at least about 6 mm greater than the width of the absorbent core (50). 43. The disposable sanitary panties of claim 41, wherein the crotch region (18) has a width of at least about 102 mm.