SK7062000A3 - Disposable underpants - Google Patents

Abstract

A three-dimensional disposable underpant having elasticized leg and waist openings and is stretchable about the hip and stomach regions of a user. The underpant includes an absorbent barrier composite positioned in the crotch area and extending into the body of the disposable underpant front and back portions to prevent liquid strike through onto outer clothing and bed linen.

Description

HYGIENIC SINGLE USE PANTS

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-permeable, absorbent layer and intended for use as protection against body contamination exudates.

BACKGROUND OF THE INVENTION

The standard textile underpants currently used are made of cotton and / or synthetic materials. In this way, the panties formed from cotton and synthetic materials are not able to provide the 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 persistent or vaginal secretions. The standard sanitary absorbent articles used and known in the art exhibit very low absorbency / barrier capabilities, and as a result, they may leak through and leak onto the wearer's outer garment (which in other words means that such absorbent articles are not capable of preventing the penetration of the acting liquids from their internal volume to the surface).

Textile briefs used in combination with other incontinence or absorbent articles, despite their wide application for the described purposes, present 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 position within the lower

458 / B panties, which causes the user not only physical problems, but also unpleasant feelings in terms of his well-being and, moreover, causes 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, wear the wet panties until he gets home.

In some respects, disposable diapers or disposable sanitary pants intended for the hygienic protection of small children could be used for this purpose. However, both because of the apparent differences between the body proportions of infants and adults, and because of the apparent differences between the physical activity and mobility of infants and adults, the pure size increase of disposable diapers may not necessarily increase to the size of adults in many to meet the necessary needs and requirements of adult users.

A large number of 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 to provide elimination and protection against leakage of the applied liquid in the crotch region. However, such a structure may result in increased stiffness and rigidity of the absorbent core, aggregation of the absorbent core or in the elasticized structure may create gaps which may cause both unwanted leakage and uncomfortable and uncomfortable fit. Other types of sanitary panties include a weld seam in the crotch area, joining the front and rear waistband parts together, which can also cause increased rigidity and rigidity that can

458 / B may lead to undesirable leakage and uncomfortable and uncomfortable storage for the user, particularly in those cases where the weld seam comes into contact with the user's skin.

Other types of disposable sanitary panties exhibit, as part of different embodiments of the side sealing and sealing means, arranged in different locations on the outer and / or inner side of the absorbent article. Absorbent articles comprising, as part of an internally arranged side airtight closure joints and exhibiting an improved external appearance at the same time, may cause undesirable skin irritation during functional use. In addition, the manufacture of such absorbent articles normally requires the use of complicated and cost-effective manufacturing techniques. By contrast, absorbent articles comprising, as part of the outwardly extending side airtight closure joints, while providing a much more comfortable and comfortable fit in the side portions, are unable to meet the requirements of suitable absorbent articles, including the elastic leg opening configuration; elastic crotch elements and resulting comfortable fit, improved leak resistance and easy and simple manufacture.

At present, the well-known disposable diaper-like disposable absorbent articles are widely used in the field of incontinence care for adult adults as well as in the care of juvenile infants. A typical diaper-like disposable absorbent article is a three-layer composite absorbent article comprising a liquid-permeable, skin-facing inner liner, a liquid-impermeable outer protective layer, and an absorbent felt liner disposed between the inner liner and said inner layer. protective layer. Materials currently used to form the three basic components of a diaper-like disposable composite absorbent article typically include various types of nonwoven webs.

458 / B fabrics in the case of the user-facing inner liner, a thin thermoplastic film in the case of the outer protective layer, and pulp fibrous tufts in the case of the absorbent felt pad.

The diaper-like disposable absorbent articles currently available on the market are flattenable, side-open absorbent articles which are intended and adapted to be disposed around the wearer's body in the waist portion thereof. The rear panel of the diaper-like absorbent article is placed over the wearer's waist while the front panel of the absorbent article overlaps the abdominal portion of the wearer. The sidewalls of the absorbent means are folded over each other and secured together using various fastening means, such as a double-sided adhesive strip.

The great popularity of the diaper-like disposable absorbent just described has led to the requirement of their application in the design of disposable sanitary pants intended for juvenile patients, and it has been assumed that this experience can also be applied to the design of disposable sanitary pants, which could be used for adult incontinence sufferers. Although disposable absorbent articles for use in the incontinence of sufferers are useful for a diaper, there are a number of reasons why such absorbent articles are unable to meet all the needs and requirements of users. The application of these diaper-like absorbent articles in functional use is typically very difficult, requiring a much greater coordination of user movements and a much greater number of steps compared to the much simpler threading of classic underpants. In addition, the outer appearance of a diaper-like absorbent article exhibits psychological effects on the user, including in particular inferiority and embarrassment.

458 / B

Incontinence protective devices and feminine sanitary napkins or cotton pads, which are used in combination with conventional textile underpants, are typically provided with a back, linen-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 is carried out and propagates transversely towards the lateral sides or longitudinally towards the front ends of the protective means, the liquid may leak to the surface of the pantie. The leakage can then result in undesired wetting of the panties. Depending on the extent of this leakage, the acting liquid may penetrate or pass the protective means or panties to the surface of the outer garment and / or bed linen or bedding. Persons suffering from severe incontinence problems must rarely use two or more pads at the same time to prevent unwanted, annoying and dirt-causing leakage, and also frequently replace them. In some cases, these problems go so far that some individuals affected by very severe incontinence limit their public activities and prefer to stay at home.

The location of incontinence protectors and feminine sanitary napkins in the crotch area of standard textile underpants shows that this protective means rests, at best, on the elastic elements of the leg opening and, at worst, it 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 poor and ineffective deposition with respect to the contour profile of the user's body, incorrect positioning of the protective means in the functional position by the user, and insufficient absorbency. The leakage of the applied liquid from the panty to the 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

458 / B insufficient protective barrier properties of the absorbent.

In addition, leakage is in many cases caused by the displacement of the protective absorbent article during functional use as a result of its ineffective storage or securing against conventional textile underpants.

SUMMARY OF THE INVENTION

Briefly, in accordance with the present invention, three-dimensional, discrete sanitary disposable panties are provided which are provided with elasticized leg openings and an elasticated waist region that are circumferentially stretchable around the user's loins and abdominal area and provide adequate protection for incontinence problems. .

The desired protective effect 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 position to absorb the incontinence outlets correctly positioned by arranging the elastic element assembly surrounding each of the leg openings. The absorbent core extends from said crotch region of the sanitary panties into other components, the front body portion and the back body portion of the panties. The described arrangement provides for the formation of sanitary panties that are capable of catching and absorbing shock-acting incontinence outlets and capable of completely eliminating the penetration of these outlets to the surface of the top garment and / or bed linen 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:

458 / B

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Fig. 1 shows a disposable sanitary pant according to the present invention, shown in plan view and in an unfolded state.

Fig. 1a shows a disposable sanitary pant according to the present invention, shown in plan view and in an unfolded state.

Fig. 1b shows the disposable sanitary panties of the present invention shown in a plan view and in a plane exploded state.

Fig. 1c. Disposable sanitary panties according to the present invention, shown in plan view and in an unfolded state.

Fig. 2a shows a disposable sanitary pant according to the present invention shown in a plan view and in an unfolded state.

Fig. 2b is a plan view of the disposable sanitary panties of the present invention shown in plan view and in an unfolded state.

Fig. 3 is a plan view of the disposable sanitary panties of the present invention shown in plan view and in an unfolded state.

Fig. 4 is a perspective view of the disposable sanitary panties of the present invention shown fully assembled to a position for functional application.

Fig. 5 is a perspective view of the disposable sanitary panties of the present invention shown fully assembled to a position for functional application.

458 / B

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

Fig. 7 is a partial cross-sectional view taken along line 6-6 of FIG. 2b, illustrating the interposition of the outer protective layer, the skin facing the wearer and the corresponding elastic elements.

Fig. 8 is a schematic, cross-sectional view, taken along lines 4-4 of FIG. 1a, illustrating the arrangement of the topsheet, the absorbent core structure, and the outer protective layer, and

Fig. 9 is a schematic cross-sectional view, taken along lines 4-4 of FIG. 2a illustrating the arrangement of the topsheet, the absorbent core structure and the outer protective layer.

DETAILED DESCRIPTION OF THE INVENTION

The following detailed description is made in relation to 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 form any sanitary absorbent articles for adults, children and infants designed to absorb and protect against incontinence, vaginal, persistent 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 comprising as part of the front body portion 14, the back body portion 15, the front waist edge 44, the rear waist edge 45, and the crotch region 18, the crotch region 18 being arranged between the front body part 14 and the rear body part 15.

458 / B

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 that is either liquid permeable and explicitly permits the liquid to enter easily into its volume, or is impermeable to the liquid and thus resistant to liquids. penetration of these liquids into its volume. A suitable and useful outer protective layer 13 may be formed from a wide variety of materials, such as natural fibrous materials (e.g., wood pulp or cotton), synthetic fibrous materials (e.g., polyester or polypropylene fibrous material), combinations of natural and synthetic fiber materials, foamed materials with cross-linked structure or perforation provided with 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, drawn fiber webs, blown fiber webs or carded bonded webs, consisting of synthetic polymer fibers, such as polypropylene, polyethylene , polyester or the like, or nonwovens formed from natural polymerising fibers, such as silk staple or cotton. The card-bonded fibrous web may be bonded by heat treatment or by spray coating with the use of those skilled in the textile industry of well-known technology techniques. Ideally, the outer protective layer 13 is formed from a spunbonded, spunbonded and drawn polypropylene fabric with a crosslinking-like binding structure. A suitable spunbonded drawn material is the material marketed by Kimberly-Clark Corporation, based in Roswell, Georgia. The outer protective layer 13 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 protective layer has a basis weight of about 0.6 axes. The outer protective layer 13 of the panties may be printed or colored or embossed with a decorative pattern. Material, z

458 / B of which the outer protective layer 13 is formed exhibits a pore size which ensures its satisfactory air permeability by expressly permitting easy passage of air or sweat and persistent exudates through the upper protective layer. The outer protective layer 13 may optionally be provided with an embossed pattern or perforated by separate, non-interconnected, and slots 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 assembled to the side edge 62 of the rear body 15 in the assembled state to form an airtight closure joint or side skirt 64. Similarly, the side edge 66 the front body 14 in the assembled state coupled to the side edge 68 of the rear body 15 to form an airtight closure joint or side skirt 70. Once assembled, the front body 14 and the rear body 15 form a waist opening 20 for threading on and undressing the panties 12 from the body of the user. 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 body member 22 is attached to the front body 14 and / or to the rear body 15 in an expanded 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 only). work

15.) The elastic elements 22 of the body parts, when attached to the respective body part, are released to form a flap folding, folding or pleating 24 of the body part (see Figs. 4 and 5), which explicitly permits and serves to expand the waist opening 20 of the front body. 14 and back body 15 in such a way as to provide the possibility of adapting the sanitary panties 12 to individuals of different body sizes.

458 / B

Since users of the pantie-type absorbent article of the present invention prefer to wear the panties in a " functional " For example, in a panty cut (i.e., a panty-high waistband), the front waist edge hem 44 of the pantie 12 preferably contacts the umbilical region and even the region around the wearer's belt. The panty 12, provided with such a raised waistband, 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 leg loops may include bikini leg loops (for example, conventional leg openings and French cut leg openings) or lower waist briefs, or so-called lower leg loops. hip cut (for example, with conventional foot openings and French cut foot openings).

In some embodiments of the absorbent article, the waist opening 20 may be surrounded by an elastic or waist opening elements 21 comprising 1 to 10 strands, fibers, strips, or strips of elastic material that are in the stretched state and are fixed to the front waist edge flange. 44 and / or to the rear waist edge flange 45 (see FIGS. 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 released upon attachment to form false folding, pleating or folding 25 a waist opening that explicitly permits and serves to expand the waist opening 20 in such a manner as to ensure that the sanitary panties 12 are adapted to individuals of different body sizes. The use of elastic waistband members 21, showing, compared to the tensile stress or the extent of stretching of the elastic body portion 22, a different tensile stress or extent of expansion may provide better fit and fit to the sanitary panties 12.

Referring again to FIG. 1a, it can be seen that the front body part 114 and the rear body part 15 form, together

458 / B with crotch region 18, respective leg openings 28 and 30, which are usually 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 extended 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 upon attachment to form a leg opening 36 (also referred to as flap folding or pleating) which explicitly permits and serves to stretch the leg openings 28; 30 in a manner that provides for the possibility of adapting the sanitary panties 12 to individuals of different body sizes.

The front body 14 is usually divided into two parts, namely the upper body part 40 and the lower body part 42 (see FIGS. 1a, 2a and 3). Similarly, the rear body 15 is also divided into two parts, the upper body 41 of the rear body and the lower body 43 of the rear body. Preferably, the upper body portion 40 and the upper body portion 41 are formed such that they include, as part of the elastic body portion 22, which 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 contraction. 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, at the top 40 of the front body and at the top 41 of the rear body, at locations located between the waist opening 20 and the foot openings 28 and 30 in a manner the ability of the panties 12 to adapt and follow the anatomical profile of the user's body is improved. Arrangement of the elastic body member 22 at the bottom 42

458 / B of the front body and the lower part 43 of the rear body is not absolutely necessary. The basis weight of the layered structure comprising the outer protective layer 13, the skin facing layer 80 and the elastic body member 22 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 barrier layer 48 to eliminate liquid penetration from the substantially liquid permeable topsheet 49, and an absorbent core 50 sandwiched between the barrier layer 48 and the topsheet 49. It is desirable that the barrier layer 48a 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 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 or the topsheet 49 by ultrasonic bonding, adhesive bonding, or other suitable means or techniques for use herein (see FIGS. 1a, 8 and 9).

In addition, the absorbent protective composite structure 46 may include, as part of, additional accessory components designed to assist in absorbing, distributing, and retaining the exudates of the body. Thus, the absorbent protective composite structure 46 may comprise as a component either a distribution layer, for example such as the transfer layer described in U.S. Pat. No. 4,798,603 to Meyer et al., Issued January 17, 1989, or a buffer layer, such as shock a liquid-compensating layer described in European Patent Application EP 0 539 703 A1, published May 5, 1993; the full descriptions of the above-mentioned documents are hereby incorporated by reference into and incorporated into the present invention. These layers,

458 / B intended for use as part of an absorbent structure are also referred to as absorbent / 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 front peripheral edges the barrier layer 48 and the topsheet 49, located outside the absorbent core 50, may be coupled to the crotch region 18, the front waist panel 14 and the rear 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 (mid-tapered shape), a regular rectangular 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. For example, the composite material may include a blown air deposited mixture of pulp fibrous tuft and blown polyolefin fibrous materials, such as polyethylene or polypropylene fibrous materials. In addition, the absorbent core 50 may be formed only of said composite material; a mixture of combined material and superabsorbent materials; a mixture of the combined material with other absorbent or superabsorbent materials including a wicking / distributing layer; or any combination of said materials with each other.

The composite material may consist of blowing an airlaid mixture of pulp fibrous tuft and blown polyolefin fibrous materials, such as polyethylene or polypropylene fibrous materials, or may consist of blowing air-formed fibrous pulp felt (e.g. wood fibrous tuft). Further, the absorbent core 50 may optionally be treated to assist in absorbing and absorbing the fluid while keeping the surrounding environment dry.

458 / B by a surfactant. 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 that is greater than 20:80 relative to each other, with the ratio varying for example, in the range of about 60:40 to about 98: 2, and preferably it is desired to be in the range of about 80:20 to about 90:10. In the case of a combination material comprising superabsorbent materials, the hydrophilic fiber: the highly absorbent 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 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 polymerization materials. Hydrogel polymerization materials may include such materials as, for example, carboxymethylcellulose, alkali metal salts of polyacrylic acids, polyacrylamides, polyvinyl alcohol, copolymers of ethylene and maleic anhydride, polyvinyl ethers, hydroxypropylcellulose, polyvinylmorpholine, polymers or copolymers of polyvinyl acrylamide polymers, polyacrylamide polymers, polyacrylamide polymers. Other suitable polymerization materials useful herein may include hydrolyzed acrylonitrile grafted starch, grafted acrylic acid starch, isobutylene-maleic anhydride copolymers, mixtures thereof, and combinations thereof.

It is required that said hydrogel polymerization materials exhibit cross-linking to a sufficient extent capable of rendering them substantially insoluble in water. Such crosslinking can be accomplished, for example, by irradiation or processing to form covalent bonds, ionic bonds, van der Waals, or hydrogen bridge bonds. The materials described and suitable for the purposes of the present invention are commercially available in a variety of ways

458 / B, such as Dow Chemical Company, Hoechst-Celanese Corporation and Allied-Colloid. Typically, the highly absorbent material is capable of providing uptake, respectively. absorb an amount of water that is at least about 15 times its weight, and the material is required to be capable of absorbing an amount of water greater than about 25 times its weight.

The highly absorbent material may be disposed, disposed, or otherwise incorporated into the absorbent core 50 in the absorbent core 50 using a variety of techniques. For example, the highly absorbent material in the absorbent core 50 may be distributed substantially evenly between the individual fibers of the fibrous material contained therein. In addition, the highly absorbent materials may also be unevenly distributed in the fibrous material of the absorbent core 50, and at the same time so as to form a generally continuous gradient, either with an increasing or decreasing concentration of the highly absorbent material as desired. from the barrier layer 48 towards the inner volume of the absorbent structure. In an alternative embodiment, the highly absorbent material may be arranged as a separate, separate 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 an overlying sheath layer 100 as part of it to assist in maintaining the integrity of the fibrous core (see FIGS. 8 and 9). The overlap sheet 100 may be formed of pulp or spunbonded or drawn spunbonded fibrous webs, meltblown fibrous webs or carded bonded fibrous webs, consisting of synthetic polymeric fibrous webs, such as polypropylene, polyethylene, polyester, or the like. or fibrous webs or fabrics consisting of natural polymeric fibrous materials such as silk staple or cotton.

458 / B

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, non-bulging and non-twisted, flattened square shape test specimen (with elastic elements removed) with a 4 inch (102 mm) side gauge using a Mitutoyo Digamatic Indicator dial indicator using a round cover plate of covered plastic material and kit to generate 0.05 psi pressure.

The absorbent core 50 should exhibit a degree of fluid absorption which is sufficient to absorb body exudates in an amount ranging from about 100 g to about 1,500 g. The absorbent core 50 should, as far as possible, exhibit optimum liquid absorption capacity (described in detail below) and preferably, if possible, a thickness of less than about 25 mm to ensure low bulkiness, eliminate clumsy and comfortable storing the absorbent article during functional application. Desirably, the absorbent core 50 exhibits an overall liquid absorption capacity of from about 200 g to about 1000 g. In a preferred embodiment, the absorbent core 50 should have an overall liquid absorption capacity of at least about 300 g and a size not greater than about 800 g. In an even more preferred embodiment, the absorbent core 50 should have an overall liquid absorption capacity of about 400 g to about 600 g.

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, is the saturation retention capacity of the liquid. . The retention capacity of the saturated liquid in the saturated state is determined as follows: Hygiene panties 12 which

458 / B are to be tested and have a moisture content of less than about 7% by weight, weighed and immersed in their saline at a higher room temperature (about 23 ° C) in saline, which will be described in detail below. A sample of the panties to be tested is left immersed in physiological saline for 20 minutes. After a period of 20 minutes, the tested panty 12 is removed from saline and placed on a 0.25-inch Teflon ™ coated laminate grid (marketed by Taconic Plastics Inc., based in Petersburg, New York). ), which is then placed in a vacuum box and covered with a pliable rubber barrier material. A vacuum of 3.5 kPa (0.5 pounds per square inch) is created in the vacuum box and held for 5 minutes. After removing the tested panty 12 from the vacuum box, these are weighed. The amount of liquid retained by the underwear test material is determined by subtracting the dry weight of the tested underwear 12 from the wet underwear weight of the tested underwear 12 (after application of vacuum) and the value determined as the saturation retention fluid in grams of retained liquid.

The saline solution used is about 0.9% sodium chloride solution. A suitable and suitable product for this purpose is a certified S / P ™ blood saline solution supplied by Baxter Diagnostic, based in McGaw Park, Illinois.

In the structural configuration of the absorbent protective composite structure 46, the barrier layer 48 should serve to retard the displacement of the acting liquid through the absorbent protective composite structure 46, which is achieved by making the barrier layer 48 resistant to penetrating liquid under normal wear conditions during functional application. The absorbent protective composite structure 46 may be processed by any suitable technique 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 by firmly bonding each other such that as a result, it exhibits liquid impermeability. The barrier layer 48 may be

458 / B formed from a thin, liquid-impermeable web or a continuous sheet of plastic film 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 from 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 of 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 a liquid-impermeable plastic film or foam which is permeable to water vapor under normal wear conditions during functional application. In a more preferred embodiment, the barrier layer 48 has a water vapor transmission rate of at least about 1000 g ^/ m2 / 24 hours. measured 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 g / m ² , manufactured by Mitsui and marketed by Consolidated Thermoplastics (CT) under the trade name ESPOIR ^r N-TAF-CT.

The barrier layer 48 is required to consist of a material that is formed or processed to exhibit liquid impermeability. In an alternative embodiment, the barrier layer 48 may be formed of a liquid impermeable material and in combination with other means suitable for the purpose (not shown), such as a liquid impermeable layer associated with a cabsorbent protective composite structure 46 (or absorbent core 50). , which may be designed to act as a barrier to the displacement of the acting liquid away from the absorbent protective composite structure 46 (or the 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 one another. Suitable and suitable materials for forming the barrier layer 48 include thermoplastic films, woven fabrics, nonwoven fabrics, laminates 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,

458 / B formed, for example, from materials such as polyethylene, polypropylene or the like. One of the suitable materials for forming a barrier layer is a polyethylene film with a thickness of 0.028 mm, provided with a purpose-embossing made of a matt relief finish and subjected to corona discharge treatment on both front surfaces. The terms " liquid impermeable " or " liquid impermeable " used for the purpose of describing a layer or layered structure are understood to mean that a fluid or liquid, such as urine, will not be said layer or layered structure extending in a direction generally perpendicular to the plane of the respective 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 towards the top garment surface during deposition 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 in the region 18 and consists of a liquid impermeable sheet, for example a polyethylene sheet. The use of only this film (alone, i.e. not in combination with the outer protective layer 13) could be not very safe and inconvenient as this arrangement might not be sufficiently durable and durable to be able to withstand extended periods of functional application. The absorbent core 50 may be coupled to a 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 deposited over and superimposed on the outer protective layer 13 (see Figures 1a, 8 and 9). An absorbent core 50 is sandwiched between the barrier layer 48 and the topsheet 49 (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 facing the wearer and is referred to as the user's skin frontally

On the other hand, the barrier layer 48 is formed and intended to be disposed towards the outer protective layer 13 and the wearer's top garment, and is referred to as the wearer's facing facing surface.

23rd

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, surfactant treated blown fibrous materials, wood fibrous tufts 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 for this purpose is a combination 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 excipients designed to enhance its absorbency, for example from 0 to 95% by weight of organic or inorganic high absorbency materials which are characteristically capable of absorbing water in an amount of 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 an overlay layer or a wicking or distribution layer which serves to help maintain the integrity of the fibrous absorbent materials or to convey and distribute the acting fluids.

458 / B

One suitable embodiment of the absorbent core 50 is a schematic representation of FIG. 8, wherein the embodiment of the absorbent core 50 includes as part of a retention layer 51 for storing the applied liquid and a wicking / distributing 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 formed from a wood fiber tuft with a basis weight of 479 gsm and a highly absorbent material with a basis weight of 260 gsm. The absorbent sub-layer is expediently positioned and centered in the area in which the user exerts an impact. The second sublayer (not shown) exhibits lower liquid absorption per unit area and is formed from a wood fiber tuft with a basis weight of 215 gsm and a superabsorbent material with a basis weight of 117 gsm.

The wicking / distributing layer 52 is expediently disposed on the retention layer 51 in an arrangement closer to the user's skin facing the front surface 16 of the absorbent core 50 and serves as a means of retarding and dispersing the impact of the shockwaves of the fluid that can reach and be introduced into the volume. The absorbent core 52 may be formed from a blown formed and carded bonded fibrous web consisting of a blend comprising 40% polyester denier of 6 denier yarn, marketed by Hoechst Celanese Corporation and 60% bicomponent polypropylene. sheathed core polyethylene fibrous material having a weight denier of 3 denier available from Chisso Corporation and having a total basis weight of from about 50 gsm to about 1 g 20 gsm. Other alternatively useful materials for forming the acquisition / distribution layer 52 are described in detail in U.S. Patent Nos. 5,192,606 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 issued to Hanson et al. on Apr. 23, 1996, the entire disclosure of which is hereby incorporated by reference into the present invention. In the attached

458 / B of the drawing, the wicking / distribution layer 52 shown by way of example has a rectangular 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.

In other embodiments of the present invention, the absorbent protective composite structure 46 comprises a monolayer absorbent core 50. The absorbent core 50 comprises materials adapted to absorb and contain urine, menstrual flow, 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 fibrous tufts or wood pulp, regenerated cellulose or cotton fibrous materials, a mixture of wood pulp and other fibrous fibers. or similar materials. One such material used for this purpose 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 which are intended to enhance its absorbency, for example from 0 to 95% by weight of organic or inorganic high absorbency materials which are typically capable of absorbing water in an amount. which is 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 entire disclosure of which is incorporated herein by reference. the descriptions are hereby incorporated by reference into, and become part of, the present invention. Highly absorbent materials are commercially available through various vendors, such as Dow Chemical Company, Hoechst Celanese Corporation and Allied Colloids, Inc.

458 / B

Another suitable embodiment of the absorbent core 50 is a schematic representation of FIG. 9, wherein the embodiment of the absorbent core 50 includes a liquid storage retention layer 51 as part of the process. This retention layer 51 is formed from a stream of airlaid mixture of wood fibrous tuft of 470 gsm basis weight and superabsorbent material of 305 gsm basis weight, which is sandwiched between or overlaid with a 19 gsm basis of pulp (paper). see overlay 100). The retention layer 51 is optionally, if desired, embossed by embossing, embossed calender rolls. A typical absorbent core 50 has an hourglass shape (middle tapered shape) having a length ranging from about 17 inches (430 mm) to about 21 inches (530 mm) and a width ranging from 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 in particular a thickness of less than about 10 mm.

The topsheet 49 is formed of a liquid pervious material in a manner that permits liquid body exudates, as well as optionally semi-solid feces and exudates, to pass through the layer into the absorbent core 50 and to be absorbed by 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, for example, such as spunbonded or drawn fibrous web, blown fibrous web, or card bonded fibrous web, consisting of synthetic polymeric fibrous materials, for example polypropylene, polyethylene, polyester or the like, perforated foil or web formed from natural polymeric fibers or fibrous materials, for example, silk staple or cotton. In addition, the topsheet 49 can 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 from a spunbonded nonwoven fibrous sheet fabric, consisting of a two-component polypropylene-polyethylene fiber material with sheathing

458 / B core containing 50% polyethylene and 50% polypropylene and having a basis weight of about 20 grams per square meter (gsm). The fabric is surface treated with a surfactant available from Union Carbide Chemicals and Plastics Company, Inc., based in Danbury, Connecticut, U.S.A. under the tradename TRITON X-102. The term " fabrics " used for the purposes of the present description refers to all types of woven, knitted and nonwoven fabrics or webs. By " nonwoven web " is meant a sheet of material that is formed other than by the use of 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 sufficient to accommodate the placement of the absorbent core 50 between the lateral 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; 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 crotch region for the desired shrinkage, contraction and contraction to form a pocket space which, in combination with the walls of the topsheet 49 and barrier layer 48, serves to retain body exudates and prevent leakage therefrom. of the absorbent article and further for the purpose of adapting to a user's body size 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 uncomfortable, with a suitable width of the crotch region 18 between the crotch region elements 37 and 39 being at least about 2.5 inch (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 a size of about 4.25 inches (108 mm).

458 / B

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 18 is wider than the absorbent core 50 by a value ranging from about 0.25 inches to about 6 mm. 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). ) 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 elastic crotch region elements 37, 39, the width of the elastic crotch region elements 37 and 39, and the width of the material collected between the outer side of the elastic crotch region elements 37 and 39. the side edges of the leg openings 28 and 30.

Preferably, the width of the material to be received between the end side edge of the leg openings 28 and 30 and the outside of the elastic crotch elements 37 and 39 is less than about 0.5 inches (13 mm). Even more preferably, the width of the scooped material is less than about 0.125 inches (3 mm). However, it is most advantageous and most desirable to completely eliminate the existence of the collected 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 crotch region 18.

The overall 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 shock fluid penetration, sleep areas, or the like. at position

The user 458 / B is seated through the absorbent structure. The overall length or dimension extending across 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 from 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 width of the absorbent protective composite structure 46 could be smaller in the crotch region 18, respectively. narrower, but this arrangement could lead to jeopardizing and reducing protection against unwanted leakage. Typically, the width of the absorbent protective composite structure 46 in the region outside the crotch region 18 is greater or less than the width of the crotch region. extended. 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 in the range of 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 shape configurations of the absorbent protective composite structure 46 are contemplated. One preferred embodiment of the composite structure exhibits a substantially irregular quadrilateral shape configuration, such as a tapered element ("hourglass"), or a shaped configuration. These configurations provide an extended overlap of the seat portion of the finally finished sanitary panties 12. Another preferred embodiment of the absorbent protective composite structure 46 exhibits the shape configuration of a regular quadrilateral resp. a rectangle with rounded ends. However, the more preferred shape configuration of the absorbent protective composite structure 46 is substantially rectangular

458 / B configuration, having a mid-tapered (or "hourglass") configuration, since this configuration may have substantially square sections at its ends that are capable of providing a smoother and more balanced external appearance of the seat pan while simultaneously 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 drawing, it may be noted that the elastic body member 22 is overlapped by the skin-facing cover 80. The configuration of the 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 the absorbent protective composite structure 46. Referring to FIG. 3 and 4 of the accompanying drawings, it can be seen that the leg opening elastic elements 32, 33, 34 and 35 are further overlapped by the skin facing the user 80. Further, FIG. 1b, it can be seen that elastic crotch region elements 37 and 39 are sandwiched between the topsheet 49 and the barrier layer 48. In alternative embodiments of the present invention, the elastic crotch region elements 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 and a leg opening 35 overlapped by the absorbent protective composite structure 46.

In another embodiment and with reference to FIG. 5 and 7 of the appended drawing, it can be seen that the elastic elements 21 of the aperture are coated with an overlap sheet 26 of the aperture. These elastic band-opening elements 21 could, if appropriate, also be covered by a skin-facing layer 80 of the wearer. Referring to FIG. 5 and 7 of the accompanying drawings, it can 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 configuration of the absorbent protective composite structure 46, at least a portion of the elastic

458 / B of the foot hole elements 32, 33, 34 and 35 overlapped by this absorbent protective composite structure 46. From FIG. 1a, it can be seen that the elastic crotch region elements 37 and 39 are, as 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, covered by this absorbent protective layer. of the composite structure 46. Referring to FIG. 7, it can be seen that the elastic elements 22 of the body portion are overlapped by the user-facing skin layer 80. The user-facing skin layer 80 is formed of a nonwoven or any other fibrous material having a corresponding softness such that the material has been able to ensure a satisfactory contact with the skin of the user. In other embodiments of the present invention, at least a portion of the elastic elements 22 of the body portion may be covered by the absorbent protective composite structure 46.

The skin facing the wearer 80 is compliant and soft to the touch of the wearer. Any soft, pliable and porous continuous layer that is either permeable to liquids, explicitly permitting the easy and rapid penetration of the liquids into its volume, or which is impermeable and resistant to liquid penetration, may be used as the skin facing the user 80. to 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 fibrous tufts, 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 sheets.

458 / B

Fabrication to the user's skin facing layer 80 can be accomplished using a variety of known manufacturing techniques. For example, the wearer facing layer 80 may be formed of woven or nonwoven webs or webs, such as spunbonded, drawn, or spunbonded webs, consisting of synthetic polymeric fibrous webs, such as spunbonded webs. , polyethylene, polyester or the like fibers or webs formed from natural polymeric fibrous materials such as silk staple or cotton. The card-bonded fibrous web can be bonded by heat treatment or by spray coating with the use of those well known in the textile industry of well-known technological processes. Ideally, the skin 80 facing the wearer is formed from a spunbonded, spunbonded polypropylene fabric with a crosslink-like binding structure. A suitable spunbonded and drawn material is 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 user-facing skin layer 80 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 easy passage of air or sweat and persistent exudates through the material of the layer. The skin facing the user may optionally be provided with an embossed pattern or may be perforated by separate, non-interconnected, and slots or openings extending therethrough.

The placement and shape of the leg openings 28 and 30 are significant in order to avoid undesired crotch tightness and user genitalia, to achieve adequate overlap of the user's loins, and to prevent the sanitary panties 12 from tipping away.

458 / B forwards and downwards or such displacement of the panties 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. 1a of the accompanying drawing shows the most suitable embodiment of the panties in terms of their fit around the legs and overlapping the wearer's loins. The shape of the curve extending along the front edges 72 and 74 of the leg openings 28 and 30 can affect and affect the manner in which the sanitary panties 12 are accommodated and conformed. 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 vice versa, increasing the length of the back panel and further resulting in a bag-like appearance of the seat portion of the sanitary panties 12. This results in the sanitary panties 12 exhibiting a sagging outer appearance, quite clearly. demonstrates an unevenness in the position of the hemline in the waist region of the wearer, resulting in undesirable tension and tightness along the front edges 72 and 74 of the leg openings 28 and 30, and an equivalent reduction in the comfort of the leg loops during functional application.

The structural configuration of the leg openings 28 and 30 is significant to ensure proper functioning of the sanitary panties 12. When the sanitary panties 12 are unfolded, this condition is shown in FIG. 1a, the predominant 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 have 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 is 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 the animal has an acute angle with the longitudinal centerline A-A of the sanitary panties 12. Preferably, the rectilinear portion Θ of the animal with the longitudinal centerline A-A of the sanitary panties 12 has an alpha angle of from about 45 ° to about 89 °, more preferably from about 55 ° to about 87 °, and most preferably at an angle of α. 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

458 / B Slightly curved waveform (where the curvature of this curve has a radius of at least 6 inches), two points are selected to describe this curve along its course and by placing one of these points in a position approximately 25% of the length slightly and the second point is located at about 75% of the length of the slight curvature. A straight line between these points is used to determine and determine the alpha angle that the animal has a 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, swelling, and displacement of the absorbent core 50 during use and provide improved capability to follow the anatomical profile of the user's body and comfortable fit of the absorbent article. In addition, the acute angles described above help the sanitary pant 12 to achieve a satisfactory overlap of the wearer ' s loins, improve their fit and eliminate undesirable leakage of absorbed body exudates. It is to be understood that, since the elastic elements 34 and 35 of the foot opening, respectively, substantially reproduce 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 to describe and interpreting 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 of beta, which preferably exhibit a rectilinear pattern. More preferably, the beta portions of the front edges 72 and 74 of the front portions 86 and 88 of the leg openings 28 and 30 have a substantially rectilinear course in the range of at least about 70% of the length of the entire front portions 86 and 88 of the leg openings 28 and 30. 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 A-A of the sanitary panties 12 an acute angle χ of about 62 ° to about 99 °, more preferably in the range of about 74 ° to about 91 °, most preferably the angle χ is about 85 °. The leading edges 72 and 74, clamping with the acute angles just described with the longitudinal centerline A-A, provide a reduction in the gathering, folding, and displacement of the absorbent core 50 during functional use and provide during this functional use.

458 / B uses improved ability to follow the anatomical profile of the user's body and comfortable fit of the absorbent article. 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 this curvature has a radius of at least 6 inches), two points are selected to describe this curvature along its course. 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 between these points is used to determine and determine the angle χ which the slightly curved section with the longitudinal centerline A - A of the sanitary panties 12. Although the front edges 72 and 74 form 90 ° angles to the longitudinal centerline, it is equally possible to use angles that are at least slightly greater or at least slightly less than 90 °, which in turn provides the formation of sanitary panties 12 s for the user comfortable and convenient fit during his physical activity. It is understood that, since the elastic elements 32 and 33 of the foot opening, respectively, substantially reproduce 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.

Likewise, the curvature shape of the crotch region 18 is significant. The bulk of the lateral edges 17 and 19 of the crotch region 18 comprise sections Σ which preferably exhibit an arcuate curve. If this curvature is too shallow or even has a straight line * (especially at the ends of the elastic crotch elements 37 and 39), this may result in undesirable tension and tightness in the genital area, which may further lead to that the sanitary panties 12 do not adequately copy the anatomical profile of the user's body and deviate the edges and create through-holes in their fit, resulting in a completely undesirable leakage. In addition, the limited width of the crotch region with a slight arc curvature may, as a result, reduce the overlap of the user's loins. For the purpose of compensating for such a reduction, the trailing edges 76 and 78 of the rear portions 82 and 84 are preferably arranged downwardly with increasing angle alpha. An arcuate curvature between the side edges 17 and 19 of the crotch region 18 and the rear

458 / B by the edges 76 and 78 of the rear portions 82 and 84 of the leg openings 28 and 30 should be arranged slightly in front of the transverse centerline B-B of the sanitary pant 12 (see Fig. 1a). This arrangement explicitly allows the rear elastic leg openings 34 and 35 to be placed below the lower edge of the loins and helps to prevent the sanitary panties 12 from buckling and unwanted from the standard position during movement activity of the user. This means that the arcuate curved portions ov of the leg openings 28 and 36 in the crotch region are arranged entirely entirely in front of the transverse centerline B-B of the sanitary panties 12. It is understood that the elastic elements 37 and 39 of the leg opening in this order, they essentially correspond exactly to the course of the side edges 17 and 19 that all references and references relating to 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 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 absorbent core. of the 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 obstructs them to function to a much lesser extent, resulting in improved fit around the leg openings 28 and 30 and sealing against leakage. In addition, the leg opening elastic elements 32, 33, 34, and 35, as expanded in volume and the swelling of the absorbent core 50 during absorption of body exudates, are much better able to remain in close contact with each other and conform to the anatomical contour of the wearer.

In a preferred embodiment, the elastic waist panel members 22 and the leg opening elastic members 32, 33, 34, and 35 (and in embodiments including the elastic waist opening member 21, respectively) are affixed to the pants 12 in a sandwich-fit arrangement between the outer protective The layer 13 and the skin facing the wearer 80 in a generally stretched state using prior art means comprising ultrasonic bonding, pressure and heat bonding, or adhesive bonding. The elastic crotch region elements 37 and 39 are

458 / B sandwich sandwiched between the barrier layer 48 and the topsheet 49 of the absorbent protective composite structure 46. The elastic crotch elements 37 and 39 are fastened characteristically in the stretched state using art-known means comprising ultrasonic bonding, bonding under the action of the prior art. pressure and heat or adhesive bonding. A wide variety of materials, including but not limited to, elastic strands, including elastic strands, rubber fibers, threads, flat rubber, elastic strip, rubber foil, polyurethane, and elastomers, as well as elastomeric materials, may be used as materials suitable and useful for forming the elastic members. strip-type materials, foamed polyurethane, linen rubber or inelastic scrim. And suitable for these purposes to use materials supplied by DuPont Company, having offices in Wilmington, Delaware, under the tradename LYCRA ^r. 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 completed prior to incorporation of the elastic member into the sanitary panties 12.

In an alternative embodiment, the elastic waist panel members 22, the leg opening elastic members 32, 33, 34, 35, and the crotch region elastic members 37 and 39 (and in embodiments including the elastic waist opening member 21, respectively) are affixed to the bottom, respectively. the pants 12 in a sandwich interposed arrangement between the outer protective layer 13 and the user's skin facing layer 80 in a generally stretched state using prior art means comprising an ultrasonic bonding, a pressure and heat bonding, or an adhesive bonding. A wide variety of materials, including, but not limited to, elastic strands, rubber fibers, threads, flat rubber, elastic strip, rubber foil, polyurethane and elastomers, as well as elastomeric materials, may be used as materials suitable and useful for forming the elastic members. strip type, foam polyurethane, linen rubber or inelastic scrim. And suitable for these purposes to use materials supplied by DuPont Company, having offices in Wilmington, Delaware, under the tradename LYCRA ^r. Every

The 458 / B elastic member may be formed as a unitary single integral unit; 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 member 22 have a width ranging from about 1 inch (25 mm) to about 10 inches (254 mm) (perpendicular to the longitudinal side) centerline A-A; see the illustration in Fig. 1a). More typically, the portions of the front waist panel 14 and the back 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). Even more typically, this width can 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 that the width of the elastic member 22 of the body portion disposed in the front waist panel 14 and the rear waist panel 15 differ from each other. In the case where one of said front waist panel 14 and rear waist panel 15 exhibits a reduced body width elastic member 22, said 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 about 4 inches (102 mm) to about 5.5 inches (140 mm). The elastic body member 22 is applied in a stretched tension state, the range of which is in the range of about 100% to about 400%, more typically in the range of about 150% to about 300%, and most typically in the stretch under tension moving 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 14 has a different value compared to the tensile stress of the elastic body member 22 acting in the rear body 15.

The elastic body member 22 may be formed of an elastic material in the form of yarns, strands, strips or strips, an elastic film, an elastic nonwoven, or a composite structure. The elastic material in the form of threads, 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 component parts of the elastic material contained in the elastic body member 22 is in the range of about 1 to about 100 pieces, more typically in the range of about 10 to 10 pieces.

458 / B of about 40 pieces, 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 the range of about 0.0625 inch (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 mm). Although the external appearance of the sanitary panties 12 can be improved in the elastic element 22 of the body part 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 needed. Such variations can also be applied to the front waist edge 44 and the rear waist edge 45 to ensure the outward appearance of the waistband.

In a preferred embodiment, the elastic strands may be formed of any suitable elastomeric material useful for the purpose. One suitable material is spandex elastomeric material, such as material type LYCRA ^r, marketed by DuPont, based in Wilmington, Delaware. For this purpose, the conforming elastic body member 22 includes strands having a yarn weight fineness (decitex, measured in g / 10,000

m) ranging from about 100 to about 1,200, more typically in the range of from about 470 to about 940, and most typically, in the case where the elastic body member 22 comprises about 15 to 35 strands, in the range of about 620 to about 740. Adhesive 74, typically applied in the molten state or in a curl pattern, using currently known techniques, is used to bond and attach the elastic body member 22 to the outer protective layer 13 and to the skin facing the wearer 80. . Preferably, the adhesive 74 is applied only to the elastic body member 22. Suitable adhesive compositions 74 include, but are not limited to, the Findley H2096 hot melt adhesive available from Ato Findley Adhesives, located in Milwaukee, Wisconsin.

458 / B

In embodiments that include an elastic waist opening member 21, the width of the elastic member 21 ranges from about 0.0625 inches (1.6 mm) to about 2 inches (51 mm). In a more typical configuration, the front waist flange 44 of the front body 14 and the rear waist flange 45 of the rear body 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 (38mm). More typically, this width is in the range of about 0.5 inch (13 mm) to about 1 inch (25 mm). The elastic band 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 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 yarns, strands, strips or strips, an elastic sheet, an elastic nonwoven, or a composite structure. The elastic material in the form of threads, strands, strips 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 elastic waist opening 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 elastic band opening member 21 is formed from strands, it is preferred that 3 to 6 strands are used to form the elastic member and that the strands are spaced apart from one another in the range of about 0.0625 inch (1.6 mm) to about 1.5 inch (38 mm), more preferably in the range of about 0.0625 inch (1.6 mm) to about 0.25 inch (6 mm), and most preferably at a distance of about 0.125 inch (3 mm).

The elastic strands may be formed from any suitable elastomeric material useful herein. One suitable material is spandex elastomeric material, such as material type LYCRA ^r, marketed by DuPont, based in Wilmington, Delaware. For this purpose, the matching waist opening elastic element 21 comprises strands of weight

458 / B of a yarn fineness (decitex, measured in g / 10,000 m) ranging from about 100 to about 1,200, more typically in the range of from about 470 to about 940, and most typically, in case the elastic waist opening member 21 comprises about 5 to 10 strands, ranging from about 620 to about 740. For bonding, attaching the elastic waist opening element 21 to the outer protective layer 13 and to the user-facing cover layer 80, or to the waist overlay 25 is used. an adhesive composition 74, typically applied in a molten state or in an arc pattern using currently known techniques. Preferably, the adhesive 74 is applied only to the elastic band opening element 21. Suitable adhesive compositions 74 include, but are not limited to, the Findley H2096 hot melt adhesive available from Ato Findley Adhesives, located 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 from about 0.25 inch (6 mm). 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). The leg opening elastic elements 32, 33, 34, and 35 are applied under tension, with the range of from about 100% to about 300%, more typically from about 175% to about 275%, and most typically in the stretch. stretching under tension having a range of from about 200% to about 250%.

The leg opening elastic elements 32, 33, 34, and 35 may be formed of an elastic material in the form of a thread, strands, strips or strips, an elastic film, an elastic nonwoven, or a composite structure. 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 discrete components of the elastic material contained in the leg opening elastic elements 32, 33, 34, and 35 ranges from about 1 to about 6 pieces, more typically from about 2 to about 5 pieces, and most typically from about 1 to about 6 pieces. 3 to about 4 pieces. In the case where the leg opening elastic elements 32, 33, 34 and 35 are formed from strands, it is preferable that 1 to 6 strands are used to form the elastic elements and that the strands are spaced from one another in size. ranging from about 0.0625 inches to 1.6 mm

458 / B of about 0.5 inch (13 mm), more preferably in the range of about 0.0625 inch (1.6 mm) to about

0.25 inches (6 mm) and most preferably at a distance of about 0.125 inches (3 mm) apart.

The strands of elastic elements may be formed from any suitable and usable elastomeric material. One suitable material is spandex elastomeric material, such as material type LYCRA ^r, marketed by DuPont, based in Wilmington, Delaware. Suitable elastic leg aperture elements 32, 33, 34 and 35 include strands having a yarn weight (decitex, measured in g / 10,000 m) ranging from about 470 to about 1,200, more typically from about 620 to about 1200 about 1,000, and most typically, when the leg opening elastic elements 32, 33, 34, and 35 comprise about 3 to 6 strands, ranging from about 740 to about 940. For bonding and attaching elastic members 32, 33, 34. and 35 of the leg opening to the outer protective layer 13 and to 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 the molten state or in a grid pattern using currently known technological processes. Preferably, the adhesive 74 is applied only to the leg opening elastic elements 32, 33, 34 and 35. Suitable adhesive compositions 74 include, but are not limited to, the Findley H2096 hot melt adhesive available from Ato Findley Adhesives, based in Milwaukee, Wisconsin.

The crotch region 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 between 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 from about 100% to about 300%, more typically in the range of about 150% to about 275%, and most typically in the stretched range of ranging from about 200% to about 250%.

458 / B

The elastic crotch region elements 37 and 39 may be formed from an elastic material in the form of a thread, strands, strips or strips, an elastic film, an elastic nonwoven, or a composite structure. This 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. . In the case where the crotch region elastic elements 37 and 39 are formed from strands, it is preferred that 1 to 6 strands are used to form the elastic elements and that the strands are spaced apart from one another in the range of about 0 0.0625 inch (1.6 mm) to about 0.5 inch (13 mm), preferably ranging from about 0.0625 inch (1.6 mm) to about 0.25 inch (6 mm), and most preferably in mutual relationship a distance of about 0.125 inches (3 mm).

The strands of elastic elements may be formed from any suitable and usable elastomeric material. One suitable material is spandex elastomeric material, such as material type LYCRA ^r, marketed by DuPont, based in Wilmington, Delaware. Suitable elastic crotch region elements 37 and 39 include strands having a yarn weight (decitex, measured in g / 10,000 m) ranging from about 470 to about 1,200, more typically from about 620 to about 1,000, and most typically, in the case where the elastic crotch regions 37 and 39 comprise about 3 to 6 strands, in the range of about 740 to about 940. For bonding and attaching the elastic crotch region elements 37 and 39 to the outer protective layer 13 and the absorbent protective layer. For example, an adhesive 74 is applied to the composite structure 46 or to the foot aperture overlay 38, typically applied in a molten state or in an arc pattern using currently known techniques. Preferably the adhesive 74 is applied only to the crotch elastic elements 37 and 39. Suitable adhesive compositions 74 include, but are not limited to, the Findley H2096 hot melt adhesive available from Ato Findley Adhesives, located in Milwaukee, Wisconsin.

458 / B

In one embodiment, elastic members 32, 33, 34 are elastic members 32, 33, 34, to provide a comfortable and snug fit around the leg openings 28 and 30, and to ensure that the lateral sides of the crotch region 18 are gathered and contracted to form a saddle type cradle arrangement. and a leg opening 35 applied to and secured to the outer protective layer 13 under tension, the extent of which extends from about 200% to about 250%. The crotch elastic elements 37 and 39 are arranged in a sandwich interposition between the barrier layer 48 and the topsheet 49 in a stretched tension of about 200%. In view of 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 these elastic elements are attached to the outer protective layer 13. In one particular embodiment, the front leg opening elastic elements 32 and 33 are in a tension extension that is less than that of 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 crotch sides 18 contracting to form a cradle-type saddle around the absorbent core 50, the leg openings 32, 33, 34 and 35 are elastic members. 37 and 39, the crotch regions applied to and secured to the outer protective layer 13 under tension have a range of about 200% to about 250%. In view of the application of the leg opening elastic elements, it is preferred that the front leg opening elastic members 32 and 33 are in a different extension range than the rear leg opening elastic members 34 and 35 and are attached to the outer protective layer 13. In the embodiment, the front leg opening elastic elements 32 and 33 are in a tension extension that is less than that of the rear leg opening elastic elements 34 and 35.

In embodiments that have elastic members surrounding the leg openings 28 30 and the crotch region 18 arranged in three segments (wherein the three segmented elastic members include the front elastic members 32 and 33).

The leg opening 458 / B, the leg back elastic elements 34 and 35, and the crotch region elastic elements 37 and 39) are the leg front leg elastic elements 32 and 33 and the crotch region elastic elements 37 and 39 are less stretched than the rear elastic elements. 34 and 35 of the foot opening. 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-segmented configuration of the elastic members and the different tensile stresses explicitly allow a better fit, less genital tension to the user, 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 leg opening elastic elements 34 and 35 are located at a greater extent of tension under tension to assist in keeping the leg portion 12 in position and preventing them from slipping during operation and further to stabilize the position of the absorbent core 50 and maximize elimination its relocation, which, as a result, causes 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 39 and leg opening elastic elements 32), the active sections of the crotch region elements 37 and 39 partially overlap with the active sections of the leg opening elastic elements 32, 33, 34 and 35. The active leg section elastic elements 32, 33, 34 and 35 and the crotch region elastic elements 37 and 39 (as well as the waist elastic elements 21 and the body portion elastic elements 22) are defined as the elastic element sections applied to the respective areas The absorbent article 10 has a pulling force.

458 / B

In another embodiment, having the 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 non-overlap, results in a spacing 90 in the configuration of the elastic elements surrounding the leg opening 30 in the front body 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 spacing 90 provides a more comfortable fit and a more comfortable fit of the sanitary panties 12 by reducing the stiffness of the interlock or abrasion that may be caused by the presence and action of the front leg opening elastic elements 32 and 33 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 front portion 42 of the front body is smooth, which in turn provides a more discreet embodiment of the sanitary pant 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 member 39 overlaps the active portion of the front leg opening elastic member 32, but does not overlap the active portion of the rear leg opening elastic member 35. This arrangement or non-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 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 in the range of about 1 inch (25 mm) to about 0.5 inches (13 mm).

458 / B

Said spacing 92 provides for a more comfortable fit and more comfortable fit of sanitary panties 12 by reducing the stiffness of the interlock 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 in turn 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, nor does the active portion of the front leg opening elastic element 32, nor does the active portion of the rear leg opening elastic element 34. This arrangement or non-overlap causes the spacing 90 and 92 to form in the arrangement of the elastic elements surrounding the leg openings 28 and 30, respectively, in the front body 14 and in the rear body 15. The dimensions of the spacing 90 and 92 are they 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 inch (13 mm).

Said spacing 90 and 92 provide a more comfortable fit and a more comfortable fit of the sanitary pant 12 by reducing the stiffness of the interlock or abrasion that may be caused by the presence and action of the leg opening elastic elements 32, 33, 34 and 35 and the elastic region elements 37 and 39 crotch 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 lower portion 43 of the rear body portion is smooth, which in turn results in a more discreet embodiment of the sanitary panties 12.

458 / B

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 1), the front leg opening elastic elements 32 and 33 are stretched under tension in a range less than the rear leg opening elastic elements 34 and 35. In a preferred embodiment, the front leg opening elastic elements 32 and 33 are extended to about 200%, while the rear leg opening elastic elements 34 and 35 are extended to about 250%. The split segment of the elastic members and the different tensile stresses explicitly allow for better 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. The rear elastic leg openings 34 and 35 are extensively stretched under tension to assist in keeping the leg portion 12 in position and preventing it from slipping during operation and further to stabilize the position of the absorbent core 50 and maximize elimination its relocation, which, as a result, causes undesirable leakage and inconvenience of the sanitary panties during their 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 non-overlap, causes a gap spacing 102 in the arrangement of the elastic elements surrounding the leg opening 28 located at the top of the leg opening 28, either in the front body 14, in the rear body 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 14 inches. about 0.25 inch (6 mm) and most typically ranging from about 1 inch (25 mm) to about 0.5 inch (13 mm).

458 / B

This spacing 102 provides a more comfortable fit and a more comfortable fit of the sanitary panties 12 by reducing the stiffness of the bonding 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 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 pant 12 due to the omission of the "pant leg straps" at the top of the user's leg wrap region.

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 from 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 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 in this embodiment. This arrangement, or non-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 in the range of about 1 inch (25 mm) to about 0.5 inches (13 mm).

Said spacing 94 provides a more comfortable fit and a more comfortable fit of the sanitary pant 12 by reducing the stiffness of the bonding or abrasion that may be caused by the presence and action of the elastic elements 32, 33, 34 and 35 of the leg opening during functional use in combination with certain shape.

458 / B configurations of the anatomical outline, its size and movement activity of the user's body.

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 section of the front leg opening elastic element 32 does not overlap the active section of the rear leg opening elastic element 35. This arrangement, or non-overlap, causes a gap spacing 104 in the configuration of the elastic elements surrounding the leg opening 28 located at the top of the leg opening 28, either in the front body 14, in the rear body 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 14 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. 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 pant 12 due to the omission of the "pant leg straps" at the top of the user's leg wrap region.

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 the elastic elements is an elastic leg opening element 96 and an elastic leg opening element 98), the leg elastic elements 96 and 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%.

458 / B

The elastic body member 22 surrounding the circumferential front body 14 and the back body 15 of the panty 12 operates independently of the other elastic elements and is intended to adapt to various configurations of the anatomical body contour profile and the type of user figure. This arrangement provides a tactile, soft, snug fit and comfortable fit within a given hip size range. In embodiments comprising the elastic waist opening member 21, the elastic waist opening member 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, resulting is to provide sanitary panties 12 with a rounded configuration that provide good fit and fit in the waist region for a wide range of belt and hip size ratios. The extension of the elastic element 22 in the front body 14 may differ from the extension of the elastic element 22 in the rear body 15.

Preferably, an elastic body member 22 is provided 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 leg openings 34 and 35. 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 more typically in the range of about 0.25 inches (6 mm) to about 1.5 inches (38 mm). It is not necessary that the spacing of the elastic members relative to each other in the front waistband section 14 and the back waistband section 15 is of the same size. However, the elastic body element (s) 22 arranged in either or both, i. in the front body part 14 and in the rear body part 15, they may, in the corresponding corresponding arrangement, abut the front or rear elastic elements 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 elastic body member 22 is a

458 / B of the part arranged independently of and at a distance from this elastic element 21 of the waist opening and the elastic elements 32, 33, 34 and 35 of the foot opening.

However, the elastic body member 22 is arranged in either or both of the body parts. the front body portion 14 and the rear body portion 15 may abut, respectively in an appropriate arrangement, either to the elastic band opening element 21 or to the elastic elements 32, 33, 34 and 35 of the foot aperture or all of these elastic elements, the elastic element 22 of the body portion abuts at least a portion of the leg opening elastic elements 32, 33, 34 and 35. In sanitary panties that are dimensioned from about 36 inches (914 mm) to about 45 inches (1143 mm) for comfortable fit in the loin area, the elastic body portion 22 in the front body portion 14 has a width of about 4 inches. inches (102 mm) and in the back body 15 a width of about 6.25 inches (159 mm). The elastic body member 22 may be positioned relative to the skirt edge 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 disposed relative to the skirt edge of the body members at a distance of from about 0.0625 inch (1.6 mm) to about 0.25 inch (6 mm). Even more preferably, the elastic body member 22 may be positioned at a distance of about 0.125 inches (3 mm) relative to the hem of the body panels.

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 user'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, as well as the transition between the lower body portion 43 and the upper body portion 41 is smooth in this state.

In embodiments in which the elastic waist opening elements 21 are provided, it is required that these elastic waist opening elements 21, in comparison with the elastic body member 22 at the top 40 of the front body and the top 41 of the rear body, have a greater effect. pull

458 / B tension per unit width, to ensure adequate fitting and comfortable fit in the belt area for a wide range of belt and hip dimension sizes of different configurations of the anatomical contour profile of the user's body. In a preferred embodiment, to achieve and secure a snug and comfortable fit in the region of the belt aperture 20 while providing a smooth and balanced transition from the upper body portion 40 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 is matched in size to the tensile stress applied in the elastic elements 22 of the body parts. However, the tensile stresses acting in the elastic elements 21 of the aperture and in the elastic elements 22 of the body part, as well as the number of individual components of the spandex elastomeric material LYCRA ^R used therein, may differ from each other.

In the front body portion 14 and the rear body portion 15, the leg opening overlap 38, the belt opening overlap 26 and / or the top facing layer 49 may extend to overlap the inner surface area of these belt parts 14 and 15. In a further embodiment the leg opening overlap 38, the belt opening overlap 26, and / or the topsheet 49 may be excluded from the central portion of the crotch region 18, which is overlapped by the absorbent protective composite structure 46. In embodiments in which the waist panels 14a and 14b are disposed. 15, the absorbent protective composite structure 46 overlaps the wearer facing layer 80, the absorbent protective composite structure 46 is disposed on and secured to the top of any arbitrarily disposed cover layer 80 so as to be in direct contact with the wearer'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 facing layer 80.

458 / B

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

Table I Range of tensile stresses acting in elastic members

22, 32, 33, 34, 35, 37, 39 (in grams / 10 mm width)

Type of elastic element Acceptable range Preferred range Maximum preferred range Lower limit Upper limit Lower limit Upper limit Lower limit Upper limit Element 22 10 150 30 100 45 75 Element 32, 33, 34, 35 20 400 80 220 120 180 Element 37, 39 20 400 80 220 120 180

For making an absorbent article provided with elastic waist opening elements 21, hem elastic elements 22, leg elastic elements 32, 33, 34 and 35, and crotch elastic elements 37 and 39, the following specific tensile stress ranges applied to the elastic elements are applied. 21, 22, 32, 33, 34, 35, 37 and 39 - see Table II below.

458 / B

Table II Range of tensile stresses acting in elastic members

21, 22, 32, 33, 34, 35, 37, 39 (in grams / 10 mm width).

Type of 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 50 200 100 175 Element 22 10 150 20 100 40 60 Element 32, 33, 34, 35 20 400 80 220 120 180 Element 37, 39 20 400 80 220 120 180

The tensile stresses acting 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 the following dimensions: width 10 mm and length 51 mm were subjected to 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 given in Table I. grams per 10 mm width. In cases where the size of the test sample subjected to the test differs from a width of 10 mm, the measured values shall be converted to a width of 10 mm. The respective tensile stresses are measured during the first stretching phase to 100% stretching at normal room temperature and humidity values.

On the inside or outside of the sanitary panties 12 or flatly by engaging the respective side edges 60, 62, 66 and 68 of the front and rear waist panels against each other, airtight closing seams or side skirts 64 and 70 may be formed which sanitize the bottom panels.

The 458 / B briefs 12 give a final appearance to the pants 12, wherein the side flanges 64 are formed so that they are not recognizable through the wearer's top 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 formed with as little width as possible, but they must, in order to ensure the possibility of frequent stretching and tightening of the panties during a 24-hour period without causing undesirable cracks, or any other damage, at the same time showing a sufficiently satisfactory strength. Suitable lateral seal seals or side skirt seals are described in detail in U.S. Pat. No. 4,610,681 to Strohbeen et al., Issued September 9, 1986; U.S. Pat. No. 4,641,381 to Heran et al. and U.S. Pat. No. 4,646,362 issued March 3, 1987 to Heran et al., the entire disclosure of which is hereby incorporated by reference into the present invention.

The side skirts 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, pressure and heat bonding, or adhesive bonding. The usable maximum strength of these side skirts depends on the materials used, the bonding structure, the bonding 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 flanges for the above-mentioned purposes, the flanges are »

The rim, which does not produce undesirable cracks or tears to a greater extent and does not open during functional use, typically utilizes ultrasonic bonding.

The side flanges 64 and 70 may further comprise bonded non-bonded portions arranged on the outside of the bonding region to serve as a soft, unpaved edge at each side flange 64 and 70. the width of these unbonded portions may range from about 0 to about 13 mm, more preferably from about 1 mm to about 6 mm

458 / B and most preferably in the range of about 2 mm to about 3 mm. In an alternative embodiment, the overall width of the side skirt (i.e., the width of the bonded bonded portion and the width of the bonded 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 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 top garment or cause undesirable and unpleasant irritation. user skin.

From the foregoing detailed description of individual embodiments of the present 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)

1. Disposable sanitary panties comprising: a) an outer protective layer comprising a front waist panel (14), a back waist panel (15) and a crotch region (18) therebetween, such that the interconnection of the front waist panel (14) and the rear waist panel (15) together forms 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) located around each of the foot openings (28, 30) ) forming a gathered pleat of each of these leg openings (28, 30), and further an elastic body portion (22) positioned around the front body (14) and the rear body (15) to create a gathered pleat of these, front and rear, body portions. 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). Disposable sanitary panties according to claim 1, characterized in that the absorbent core (50) consists of: fibrous pulp; superabsorbent material; blown fibrous materials; adhesive means; stabilizing agents; non-absorbent fibrous materials; foams and mixtures thereof. 31,458 / B Disposable sanitary panties according to claim 2, characterized in that 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; foams and mixtures thereof. Disposable sanitary panties according to claim 1, characterized in that the absorbent protective composite structure (46) overlaps a portion of the front waistband (14) and a portion of the back waistband (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. The disposable sanitary pant according to claim 6, wherein the absorbent core (50) has an overall absorbency of between about 100 grams and about 1,500 grams. Disposable sanitary panties according to claim 1, characterized in that the front leg elastic elements (32, 33), the rear leg elastic elements (34, 35), the crotch elastic elements (37, 39) and the elastic the bodywork elements (22) are attached to the sanitary panties by means of an adhesive which is applied directly to these elastic elements. The disposable sanitary pant according to 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 essentially rectilinear and an animal with a longitudinal centerline (A - A) of sanitary 31 458 / B panties an angle of magnitude ranging from about 55 ° to about 87 °. The disposable sanitary pant according to claim 1, wherein each leg opening (28, 30) comprises a front portion (86, 88) having a front edge (72, 74), each of said front edges (72). 74) is substantially rectilinear, and the animal having a longitudinal centerline (A-A) of the sanitary panties has an angle ranging from about 62 ° to about 99 °. The disposable sanitary pant according to claim 10, wherein each leg opening (28, 30) comprises a front portion (86, 88) having a front edge (72, 74), each of said front edges (72). 74) is substantially rectilinear, and the animal having a longitudinal centerline (A-A) of the sanitary panties has an angle ranging from about 62 ° to about 99 °. The disposable sanitary pant according to claim 1, further comprising an elastic waist opening element (21) disposed around the waist opening (20) to create a gathered pleat around the waist opening (20). The disposable sanitary pant according to claim 12, further comprising an elastic waist opening element (21) disposed around the waist opening (20) to create a gathered pleat around the waist opening (20). Disposable sanitary panties according to claim 13, characterized in that the elastic element (21) of the band opening (20) exhibits a tensile stress applied thereto that is greater than the tensile stress per unit width acting in the elastic element (22). body part. 31,458 / B Disposable sanitary panties according to claim 14, characterized in that the elastic element (21) of the band opening (20) exhibits a tensile stress applied thereto that 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 leg elastic element (34, 35) has a tensile stress applied thereto that is greater than the tensile stress per unit of width acting in the elastic element (37). 39) the crotch region or in the front elastic leg opening element (32, 33). Disposable sanitary panties according to claim 16, 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) the crotch region or in the front elastic leg opening element (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 part (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 separated from the elastic member (32, 33). 34, 35) of the foot aperture by means of a spacing of at least about 0.25 inches. 31,458 / B Disposable sanitary panties according to claim 18, characterized in that the elastic body member (22) arranged around the perimeter of the sanitary panties extends from the waist opening (20) and is separated from the elastic member (32, 33). 34, 35) of the foot aperture by offset at least about 0.25 inch. Disposable sanitary panties according to claim 22, characterized in that the front leg opening elastic element (32, 33) and the crotch region elastic element (37, 39) are arranged around each leg opening (28, 30) and define spacing between them (90). Disposable sanitary panties according to claim 22, 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 spacing between them (92). Disposable sanitary panties according to claim 23, 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 spacing between them (92). Disposable sanitary panties according to claim 18, characterized in that the front elastic leg opening (32, 33) constitutes 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 elastic strands independent of each other; and an elastic body member (22) of a multi-component arrangement of individual, mutually independent elastic strands, the elastic strands being spaced from one another to about 13 mm in the leg openings and the body parts. 31,458 / B Disposable sanitary panties according to claim 1, characterized in that the crotch region (18) is wider than the absorbent core (50). Disposable sanitary panties according to claim 27, characterized in that 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). Disposable sanitary panties according to claim 28, characterized in that the crotch region (18) has a width of at least about 102 mm. 30. Disposable sanitary panties comprising: a) an outer protective layer having a front waist panel (14), a back waist panel (15) and a crotch region (18) therebetween, such that the front waist panel (14) and the back waist panel (15) are joined together to form a waist opening (20) and two leg openings (28, 30), each of said leg openings (28, 30) comprising a front portion (86, 88) having a leading edge (72, 74) and a rear portion (82, 84) having a trailing 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) the predominant length of the rear edge (76, 78) of the rear portion (82, 84) of each of the leg openings (28, 30) is rectilinear, the rectilinear portion of the animal having an angle with the longitudinal centerline (A-A) of the sanitary panties; the size of which ranges from about 55 ° to about 87 °; and d) a predominant portion of the length of the front edge (72, 74) of the front portion (86, 88) of each of the foot openings (28, 30) is rectilinear, the rectilinear portion of the animal 31,458 / B with a longitudinal centerline (A-A) of the sanitary panties having an angle ranging 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 leg opening (32, 33), a rear elastic leg opening (34, 35) and an elastic leg (37). 39) a crotch region disposed around each of the leg openings (28, 30) to form a gathered shirring of each of these leg openings (28, 30) and further an elastic body member (22) positioned around the front body (14) and the rear body the part (15) to form a gathered shirring of these front and rear body parts (14, 15). The disposable sanitary pant according to claim 31, further comprising an elastic waist opening element (21) disposed around the waist opening (20) to form a gathered fold around the waist opening (20). Disposable sanitary panties according to claim 32, characterized in that the elastic element (21) of the waist opening (20) exhibits a tensile stress applied thereto that 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 of width acting in the elastic member (37, 35). 39) the crotch region or in the front elastic leg opening element (32, 33). Disposable sanitary panties according to claim 34, characterized in that the elastic body part (22) arranged around the perimeter of the sanitary panties extends from the waist opening (20) to the leg openings (28, 30). 31,458 / B 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 separated from the elastic member (32, 33). 34, 35) of the foot aperture by means of a spacing of at least about 0.25 inches. Disposable sanitary panties according to claim 32, characterized in that the front elastic foot opening (32, 33) and the crotch region elastic element (37, 39) are arranged around each foot opening (28, 30) and define spacing between them (90). Disposable sanitary panties according to claim 32, 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 spacing between them (92). Disposable sanitary panties according to claim 37, characterized in that the rear elastic leg opening (34, 35) and the crotch elastic element (37, 39) are arranged around each leg opening (28, 30) and define the spacing between them (92). Disposable sanitary panties according to claim 30, characterized in that the front elastic foot 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 elastic strands independent of each other; and an elastic body member (22) of a multi-component arrangement of individual, mutually independent elastic strands, the elastic strands being spaced from one another to about 13 mm in the leg openings and the body parts. 31,458 / B Disposable sanitary panties according to claim 30, characterized in that the crotch region (18) is wider than the absorbent core (50). Disposable sanitary panties according to claim 41, characterized in that 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.