CN1286608A - 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

Disposable underwear

FIELD OF THE INVENTION

The present invention relates to general underwear.The underwear that particularly relates to disposable incontinence patient, it has the impermeable district of liquid and is used for the absorbed layer of incontinence patient's protection.

The background of invention

Common underwear is to be made by cotton and/or synthetic material now.The trousers of cotton and synthetic material generally can not provide the barrier layer or absorb protection.The trousers of synthetic material often have the crotch of cotton liner to absorb sweat or vaginal discharge.Usually absorption/the barrier properties of underwear is very little, and therefore, the ejection of hyperhidrosis, incontinence or any vagina all may produce the clothes that surge is penetrated into the outside (be liquid be penetrated into the outside from the inside of underwear).

Fabric underwear with other incontinences or absorbent article use although be widely used, has various shortcomings.The underwear that has absorbent article to insert may be felt under the weather to some user.Some user lives through and is difficult to make absorbent article to remain on the impression of position in the underwear, causes on the user health and spiritual uncomfortable, and produces the risk of leaking.In addition, if leak, user must be handled, and will go home with wet underwear when in public.

For disposable use training pants or the disposable underwear that the training child goes to toilet and uses, sold a period of time.But, because the difference of child and the difference that becomes the person and child and activities of adults and action.Just the size that simply size of disposable use training pants is increased to the adult is impossible satisfy many demands of adult's user.

Existing or disclosed many disposable underwears comprise such clothing, its flexible parts is interposed between the tergite of the top flat that can see through liquid and the impermeable mistake of liquid, and extend on the width of absorbent cores substantially or surpass absorbent cores slightly, thereby make this elastomeric element, particularly those elastomeric elements that are associated with the rib collar of described each lower limb have important effect to preventing from the crotch leakage.But such structure can cause the absorbent cores hardening, and absorbent cores is assembled bunchy, and perhaps the gap in the elastic construction can be caused and be leaked and uncomfortable dress.Other disposable underwears be included in crotch area connect before and after the joint portion of sheet, it also can cause hardening, cause leak and wear uncomfortable, the contacted place of the skin of joint portion and user particularly.

Other disposable underwears disclose the design of various side seals, change to outside side seals internally.Comprise the clothing of inner seal,, may cause stimulation cortex although improved outward appearance is arranged.Such clothing need the complicated manufacturing step very high with cost usually.The clothing that include outer side edges sealing are made easily, and it is more comfortable to be provided at the side zones dress, but can not satisfy clothing at shank with the crotch elastomeric element is comfortable and easy to wear and can improve the requirement of leakage.

Disposable clothing as the diaper shape, such as everyone knows, find now grow up incontinence patient and baby are had been widely used.This typical disposable clothing as the diaper shape have three-layer composite structure, and it comprises the inside liner of the bodyside of liquid permeable.Liquid-tight outer housing and be interposed in inside liner and outer housing between the absorption carpet veneer.The material of three kinds of main elements of now general clothing as disposable as diaper shape comprises the lining of various types of supatex fabric as bodyside, thin thermoplastic material film as outer housing and cellulose villus as the absorption carpet veneer.

The clothing of the disposable diaper shape of the existing type in market are the clothing of flat side openings, and it plans to be fit to the health of user.The back fin of the clothing of diaper shape is placed on the buttocks of user, and the abdominal part of the topped user of preceding fin of clothing.The side of clothing is eclipsed, by keeping together as the various fixtures to pressure-sensitive adhesive tape.

The public has caused wilderness demand to the disposable use underwear of child to the extensive concern of the clothing of disposable like this diaper shape, it is believed that the once use underwear to the incontinence patient that can be used for growing up also has demand.Though the clothing of the disposable diaper shape that uses for the incontinence patient are available, have a lot of reasons can explain that such clothing can not satisfy the requirement and the hope of user.The dress of the clothing of diaper shape is very difficult usually, needs much to cooperate, and needs more step than pulling on a underwear simply.The outward appearance of the clothing of diaper shape comprises the sense of loss and makes us embarrassed the pressure on the user spiritedness.

Sanitary towel or liner that incontinence patient who uses with common underwear and women use all have poly backing usually, thereby some barrier properties is provided, and this is to prevent that liquid surge is needed.If but surge flows to the side or the end of liner, it will drain on the underwear so.This leakage makes underwear become wet.According to the amount of leaking, liquid may surge by or arrive bedding on overcoat and/or the bed along underwear.There is the people of serious incontinence problems usually to use one or several liner simultaneously, constantly changes so that prevent the leakage of making us embarrassed and dirty.In some cases, the people who stands serious incontinence will limit their action, stay at home always.

Place the liner that incontinence and women use in the crotch of common underwear, usually show as, liner is placed on the lower limb elastomeric element in the time of preferably, is projected into when the poorest outside the lower limb elastomeric element.This causes that side leaks on the clothes that also may spill the outside on the underwear.The leakage that liner is general is that user is to the inappropriate location of liner and lack that absorbability causes owing to absorb liner and cooperate very poorly with health.Leaking into coat from underwear is owing to absorb gasket width and underwear crotch width does not match and underwear material shortage barrier properties around the marginal portion that absorbs liner.In addition, leaking usually is owing to absorb liner in using because of unsuitable placement in common underwear or invalid fixing, and causes thereby produce to move.

The summary of invention

Three-dimensional, disposable, isolating underwear has been described in this invention briefly, the leg opening of flexibleization and waist, and this waist can extend in a circumferential direction around arm and abdomen part, and this underwear provides protection to the incontinence patient.

By the softish absorbent cores that installing is associated with the crotch area of underwear, wherein absorbent cores is remained on incontinence is discharged on the only position with the elastic system that surrounds each leg opening, thus the effect of acquisition protection.This absorbent cores is stretched in the body the trousers body portion of front and back of underwear from the crotch area of underwear.This makes underwear can admit and absorb the emission of incontinence, and prevents that liquid surge is penetrated into the outside clothes and bed is gone up bedding.

Brief description of the drawings

After reference following detailed of the present invention and accompanying drawing, can understand the present invention fully, its further every advantage will become clearer, in the accompanying drawing:

Fig. 1 a is the top plan view of the preassembled flat structure form of underwear article of the present invention;

Fig. 1 b is the top plan view of the preassembled flat structure form of underwear article of the present invention;

Fig. 1 c is the top plan view of the preassembled flat structure form of underwear article of the present invention;

Fig. 2 a is the top plan view of the preassembled flat structure form of underwear article of the present invention;

Fig. 2 b is the top plan view of the preassembled flat structure form of underwear article of the present invention;

Fig. 3 is the top plan view of the preassembled flat structure form of underwear article of the present invention;

Fig. 4 is the perspective view of the disposable use underwear of the present invention of whole dimension;

Fig. 5 is the perspective view of the disposable use underwear of the present invention of whole dimension;

Fig. 6 is along the profile of the intercepting of the 6-6 line among Fig. 1 a, shows bright outer housing, lining and elastic component;

Fig. 7 is along the profile of the intercepting of the 6-6 line among Fig. 2 b, shows bright outer housing, lining and elastomeric element;

Fig. 8 is along the decomposing section of the intercepting of the 4-4 line among Fig. 1 a, shows bright absorbed layer, barrier layer and outer housing; And

Fig. 9 is along the decomposing section of the intercepting of the 4-4 line among Fig. 2 a, shows bright absorbed layer, barrier layer and outer housing.

Detailed description of the preferred embodiments

Content with goods 10 is described in detail below, and these goods comprise disposable underwear 12, in use has absorbent cores to be placed on wherein.But very clear, the present invention also can be applied to be grown up, in child and baby's the product, admit the incontinence patient.Ejection such as woman vagina and perspiration.

Fig. 1 a shows the planar structure of disposable use underwear 12 before assembling of the bright preferred embodiment of the invention.In Fig. 1 a, the underwear 12 of expression has outer housing 13, and it comprises portion of predecessor 14, back body portion 15, front waist edge portion 44, back waist edge portion 45, crotch part 18, waist lining 28 (optionally, seeing Fig. 5 and 7), lower limb lining 38 (optionally, see Fig. 5 and 7) and bodyside liner 80.Outer housing 13 can comprise portion of predecessor 14, back body portion 15, front waist edge portion 44, back leg edge part 45 and crotch part 18, and wherein crotch part 18 is to be placed between portion of predecessor 14 and the back body portion 15.

Outer housing 13 is complied with concerning the wearer and sensation of softness.Outer housing 13 can be any soft, flexible porous chips, and it is a fluid permeable, and permission liquid is easy to penetrate into its thickness, or impermeable, stops liquid to penetrate into its thickness.Suitable outer housing 13 can be made by far-ranging material, and as natural fiber (as wood and cotton fiber), synthetic fibers (as polyester or polypropylene fibre) are perhaps made by the combination of natural and synthetic fibers or reticulated polymer foam and plastic foil with holes.

There are many kinds of manufacturing technologies can be used for making outer housing 13.For example outer housing 13 can be woven or non-woven net or sheet, as net spunbond, that melt and spray or glue comb, the net of forming by the synthetic polymer silk of polypropylene, polyethylene, polyester or analog, the perhaps net of forming by artificial silk or the such natural polymer silk of Cotton Gossypii.Sticking comb net can be that heat bonding or spray with binding agent by personage's known devices that fabric technology is familiar with forms.The more suitable woven nonwoven fabric of outer housing 13 right and wrong.In theory, outer housing 13 is spunbond polyethylene nonwoven things of band silk weaving bonding patterns.Suitable spunbonded materials is available from Kimberly-Clark Corporation (Kimberly-Clark Corporation), the said firm be positioned at the Georgia State Rosewell (RosWell, GA).To about 2.0osy, another kind is about 0.6osy to the weight of outer housing 13 from about 0.3 ounce per square yard (oz.per squareyard) (hereinafter to be referred as osy).The outer housing 13 of underwear can print, painted or decoration embossing.The size in the hole of outer housing 13 allow air, the globule, sweat be easy to by because the ventilative property of material.Outer housing 13 can be selectively on its whole length embossing or with discrete seam or hole perforation.

With reference to figure 1a, 2a and 3, the edge 62 of the edge 60 of portion of predecessor 14 and back body portion 15 is assembled together and forms sealing or latasuture 64.Similarly the edge 68 of the edge 66 of portion of predecessor 14 and back body portion 15 is assembled together and forms sealing or latasuture 70.Portion of predecessor 14 and back body portion 15 form waist opening 20 when being assembled together, and are used to put on and throw off underwear 12.Waist opening 20 to small part is surrounded by waist elastic members 22, and this elastomeric element comprises thigh, line, bar or the band of the elastomeric material between 1 to 40.Waist elastic members 22 is stretched and is connected on body portion 14 and 15.Waist elastic members 22 also can be placed among front and back waist edge part 44 and 45 (in other embodiments, waist elastic members 22 can only be included in portion of predecessor 14 or only be included in the back body portion 15).After connecting, unclamp waist elastic members 22, so as to produce the folding of waist, gather, rivel 24 (seeing Figure 4 and 5), the opening of permission waist opening 20 and body portion 14 and 15, thus make underwear 12 can be fit to the people of various sizes.

Because the underwear of the general preferred succinct type of user of the present invention, the front waist edge portion 44 of underwear 12 preferably arrives umbilicus and even arrives around wearer's the waist.Make underwear 12 be in this height, and pull in waist 14 and 15 one or both, make it tight fit next to the shin with waist elastic members 22.Another kind of underwear type can comprise bikini (bikini) (as common trouser legs excision and the excision of French trouser legs) jazz buff's formula (hipster) (as common trouser legs excision and the excision of French trouser legs).

In certain embodiments, waist elastomeric element 21 surrounds waist opening 20, this elastomeric element comprises thigh, bar or the band of the elastomeric material between 1 to 10, elastomeric material stretched and be connected to front waist edge portion 44 and/or (in other embodiments, waist elastomeric element 21 can only be included in front waist edge portion 44 or only be included in back leg edge part 45) gone up by back waist edge portion 45 (seeing Fig. 5 and 7).After connecting, unclamp waist elastomeric element 21, so as the folding of generation waist, gather, rivel 25, they can open waist opening 20, thereby make underwear 12 can be fit to the people of various sizes.Use have be applied to waist elastic members 22 in different tension force and the waist elastomeric element 21 of elongation can provide underwear 12 better fit.

With reference to figure 1a, portion of predecessor 14 and back body portion 15 form lower limb split shed 28 and 30 respectively with crotch part 18 again, and they are general rounded or oval.Leg opening 28 and 30 each surrounded respectively by leg elastic members 32,33,34 and 35 to small part.Stretching foreleg elastomeric element 32 and 33 and be connected to portion of predecessor 14, stretching back leg elastomeric element 34 and 35 and be connected to back body portion 15, stretching crotch elastomeric element 37 and 39 and be connected to crotch part 18.Unclamp lower limb and crotch elastic component 32,33,34,35,37 and 39 after connecting, so as to produce shank gather (being also referred to as folding or rivel) 36, make leg opening 28 and 30 can open the lower limb that is fit to various sizes.

Upper body 40 and preceding lower part of the body portion 42 (seeing Fig. 1 a, 2a and 3) before portion of predecessor 14 is divided into usually.Back body portion 15 is divided into back upper body 41 and back lower part of the body portion 43 similarly.Before and after upper body 40 becomes to comprise waist elastic members 22 with 41 preferred design, this elastomeric element can extend the permission wearer and put on underwear 12, be easy to then to shrink and with wearer's health similar shape.This guaranteed to different body shapes and size can both near or snug fit. Upper body 40 and 41 was on both before and after waist elastic members 22 was positioned at respectively, the position between waist opening 20 and leg opening 28 and 30, thus make underwear 12 be fit to the wearer better, particularly around body part.Front and back lower part of the body portion 42 and 43 not necessarily needs waist elastic members 22.Comprise outer housing 13, the basic weight of the laminate of bodyside liner 80 and waist elastic members 22 can be up to 5osy.

The crotch part 18 of underwear 12 comprises absorbing and stops that composite members 46 (sees Fig. 1 a).Absorption stop composite members 46 also comprise the top flat layer 49 of the permeable substantially mistake of liquid barrier layer 48, liquid and be clipped in liquid barrier layer 48 and top flat layer 49 between absorbent cores 50.Wish that liquid barrier layer 48 and top flat layer 49 are longer and wideer than absorbent cores 50, thereby make the periphery of liquid barrier layer 48 and top flat layer 49 form limit portion that this limit portion can be bonding with ultrasound wave, heat bonding, binding agent or other suitable devices are sealed.In this seal area, crotch elastomeric element 37 and 39 can be in conjunction with being inserted between liquid barrier layer 48 and the top flat layer 49.Absorbent cores 50 also can be bonding with ultrasound wave, binding agent or other suitable devices are connected to liquid barrier layer 48 and/or top flat layer 49 (seeing Fig. 1 a, 8 and 9).

Absorption stops that composite members 46 can also comprise additional parts, so that help receiving, distribute and storing of bodily exudate.For example, absorption stops that composite members 46 can comprise transport layer, be presented to people's (Meyer) such as Mei Ya United States Patent (USP) 4 as on January 17th, 1989,798, as described in No. 603, perhaps surge processing layer, as described on May 5th, 1993 disclosed European Patent Application No. EPO 539 703 A1 numbers, these patents and application are hereby expressly incorporated by reference.Layer so also is referred to as to receive/Distribution Layer.

By supplying with the material of top flat layer 49 and liquid barrier layer 48, and single absorbent cores 50 is interposed between liquid barrier layer 48 and the top flat layer 49, can constructs absorption and stop composite members 46.The liquid barrier layer 48 outside absorbent cores 50 and the side and the terminal, peripheral of top flat layer 49 can be connected with crotch part 18, portion of predecessor 14 and back body portion 15 and be sealed.Absorption stops that composite members 46 selectively can be T shape, I shape, ellipse, hourglass shape, rectangle or irregularly shaped.

Absorbent cores 50 can comprise the common moulding material of being made up of the mixture of cellulose fiber peacekeeping synthetic polymeric fibers.For example, moulding material can comprise the cellulose wood pulp fibres of air-laid and melt and spray polyolefine fiber altogether, as the mixture of polyethylene or polypropylene fibre.Absorbent cores 50 can comprise have only common moulding material, superabsorbent material and the altogether combination of moulding material, moulding material receives/other absorptions of Distribution Layer or the combination of non-absorbing material with including altogether, or their combination in any.

Moulding material can comprise the cellulose wood pulp fibres of air-laid and melt and spray polyolefine fiber altogether, as the admixture of polyethylene or polypropylene fibre, perhaps can comprise the lint layer that cellulose fibre (as wood pulp fluff) air forms.Selectively, can handle absorbent cores 50, so that help receiving of liquid in exsiccant environment the time with surfactant.In the particular of invention, absorbent cores 50 its loft when drying is not more than about 40mm (millimeter).Hydrophilic fibers and polymerised unit can be provided, and its fiber, for example between about 60: 40 and about 98: 2, was wished between about 80: 20 and about 90: 10 greater than 20: 80 the ratio of polymer.Comprising superabsorbent material in the moulding material altogether, fiber/high-absorbent material is wished at about 60: 40 to about 65: 35 than at about 90: 10 to about 50: 50.High-absorbent material is discussed below.

Organic high-absorbent material can comprise natural material, as pectin, guar gum and peat bog.And synthetic material, as the synthetic water gelatin polymer.For example, such aquogel polymer can comprise polymer and copolymer, polyacrylate, polyacrylamide, polyvinyl pyridine or the similar material of carboxymethyl cellulose, polyacrylic alkali metal salt, polyacrylamide, polyvinyl alcohol, ethylene maleic anhydride copolymers, polyvinylether, hydroxypropyl cellulose, polyethylene morpholone, vinyl sulfonic acid.Other suitable polymers can comprise acryionitrile grafted starch, acrylic acid grafted starch and isobutene. maleic anhydride copolymers and their mixture of hydrolysis.

Aquogel polymer is wished to have enough crosslinked, so that material is water-insoluble basically.For example, crosslinked can be by radiation or by covalent bond, ionic bond, Robert Van de Walle power or hydrogen bonded.Suitable material is on sale from each commercial distribution company, as Dow Chemical Company (DowChemical Company), Hoechst-Celanese Corporation and Allied-Colloid.In general, high-absorbent material can absorb at least about the water of 15 times of itself weight and wish to absorb water greater than about 25 times of itself weight.

High-absorbent material can be used various technology and be distributed to or be attached in addition in the absorbent cores 50.For example, high-absorbent material can distribute along the fiber of forming absorbent cores 50 substantially equably.This material also can be distributed within absorbent cores 50 fibers unevenly, so that form common successive gradient, or increase or reduce the concentration of high-absorbent material, as by observe the material concentration that moves inward from liquid barrier layer 48 determined.Another kind is that high-absorbent material can comprise and the isolating independent stratum of the fibrous material of absorbent cores 50, perhaps can comprise and 50 one-tenth whole discrete layers of absorbent cores.

Absorbent cores 50 can also comprise integument 100, so that help to keep the globality (seeing Fig. 8 and 9) of fibre core.This integument 100 can comprise the cellulose chiffon or by synthetic polymer filament form spunbond, melt and spray or the web material (or fabric) of sticking comb, polymer filaments such as polypropylene, polyethylene, polyester or analog, perhaps natural polymer silk such as staple fibre or Cotton Gossypii.

Best, the thickness of absorbent cores 50 is less than about 45mm.The scope of the thickness of absorbent cores 50 can be from about 4mm to about 40mm.To about 30mm, preferred scope is to about 20mm from about 6mm to preferred thickness range from about 5mm.Thickness is that (removing elastomeric element) measures with Mitutoyo Digamatic indicator on the square sample of 4 inches (102mm) level and smooth nothing button, uses the acrylic acid resin platen of diameter 3 inches (76mm) and the pressure that assembly produces 0.05 psi.

Absorbent cores 50 should have enough big liquid capacity, restrains about 1500 ejections that restrain to absorb about 100.Absorbent cores 50 preferably should have certain capacity (describing below), and its thickness provides fluffy and not flexible cooperation so preferably less than about 25mm.Absorbent cores 50 should have an appointment 200 restrain about 1000 the gram total capacities.Preferably, absorbent cores 50 should have at least about 300 the gram but be not more than 800 the gram total capacities.More preferably absorbent cores 50 should have an appointment 400 restrain about 600 the gram total capacities.

The absorption of using underwear 12 stops the total capacity of composite members 46 and outer housing 13 definite absorbent cores 50.Saturated reserve capacity is that what to absorb clothes is exactly the variable of total absorptive capacity of underwear 12 in this description.Saturated reserve capacity is determined as follows.The underwear of testing 12, its water content is weighed to it less than about 7% percentage by weight, as following description, is immersed in a large amount of saline solutions under room temperature (about 23 ℃) then.Allowing material be immersed in the solution kept 20 minutes.From saline solution, take out underwear 12 after 20 minutes, be put into and use Teflon ^TM(this net is in the New York on the screen cloth of the glass fibre that 0.25 inch perforate is arranged that applies, this guarantor's Tai Kaonike Plastics Company (Taconic PlasticsInc. each other, pelersburg N.Y.) on sale, then this sieve plate is placed in the vacuum tank, topped with softish elastomeric material.In vacuum tank, take out the vacuum 5 minutes of 3.5 kPas (0.5 pounds/square inch).And then the underwear 12 of weighing.The dry weight that the wet weight (after adding vacuum) of underwear 12 is deducted underwear 12 just can be determined to want test material to keep fluidic total amount, to keep fluidic gram number report saturated retention capacity.

Saline solution is the sodium chloride solution of about 0.9% (percentage by weight).Suitable product is S/P ^TMThe blood salt (Certified Blood Saline) of card is arranged, on sale from (McGaw Park.illinois) the Baxter Diagnostics in park, Meccah, Illinois.

Stop in the structure of composite members 46 in absorption, keep out the infiltration that often runs into by making liquid barrier layer 48 under the condition of wearing, liquid barrier layer 48 can hinder liquid stops composite members 46 by absorption motion.By any known method in the prior art, as to absorbent cores 50 coateds or on absorbent cores 50, fix the impermeable material of independent liquid, can make to absorb that to stop that composite members 46 becomes liquid impermeable.Liquid barrier layer 48 can comprise impermeable paper web of thin liquid or plastic film, as polyethylene, polypropylene, polrvinyl chloride or materials similar.Another kind is, liquid barrier layer 48 can comprise appropriate structuring and be arranged to make it that non woven fibre paper web of low permeability for liquids is arranged.Also having a kind of is that liquid barrier layer 48 can comprise stacked or laminated material, as the composite members of heat-adhesive plastic films and nonwoven web.Also having liquid barrier layer 48 is to comprise that liquid is impermeable, but but at film or the foam of normally wearing permeate water steam under the condition.More preferably, liquid barrier layer 48 has steam permeable speed to be at least about 1000 gram/m by Unite States Standard test method ASTM E96-92 measurement ²/ day.The example of a suitable film is 39.4 gram/rice ²Microporous membrane, produce by Mitsui company, sell (ConsolidatedThermoplastics (CT)) by unified thermoplastic company, trade mark is ESPOIR ^_N-TAF-CT.

Liquid barrier layer 48 wishes to comprise a kind of material, its formation or be processed into and make it have the liquid impermeability.Another kind is, liquid barrier layer 48 can comprise liquid permeable material and other suitable device (not shown), as stopping the relevant fluid impermeable layer of composite members 46 (or absorbent cores 50), can flow out liquid and absorb the motion generation resistance that stops composite members 46 (or absorbent cores 50) with absorption.Liquid barrier layer 48 can comprise the laminate of material or two-layer or the multilayer material of monolayer.The suitable material of liquid barrier layer 48 comprises thermoplastic film, Woven fabric, supatex fabric, film, weaves and/or supatex fabric, foam or analog.For example, that liquid barrier layer 48 can comprise is thin, the impermeable basically nethike embrane of fluid or plastic film, as polyethylene, polypropylene or materials similar.48 1 kinds of suitable materials of liquid barrier layer are 0.028 millimeter polyethylene films that (mm) is thick, have the embossed pattern of the dim tone of system, and have carried out sided corona treatment in both sides.Term as used herein " fluid impermeable " or " liquid is impermeable " are to describe one deck or laminate device, fluid or liquid are being generally perpendicular under the common service condition on this layer or the planar direction of laminate as urine, will can not pass through this layer or laminate at the contact point of fluid (or liquid).

When the absorption at underwear 12 stops on the composite members 46 when discharging takes place, need liquid barrier layer 48 to prevent the shove clothes of outside of liquid.Liquid barrier layer 48 is positioned at the inboard of crotch area 18 inside and outside covers 13, and by the impermeable film of liquid, forms as polyethylene.Only use film (not having outer housing 13) will feel heat and uncomfortable, can not have enough durability to withstand during wearer's the dress of prolongation.Absorbent cores 50 can be associated with liquid barrier layer 48, can have also and can not have elastic characteristic.

Absorption stops that composite members 46 comprises liquid barrier layer 48, the permeable top flat layer 49 of fluid (or liquid) of fluid impermeable basically, and it overlaps on the outer housing 13 (sees Fig. 1 a, 8 and 9).Absorbent cores 50 is interposed between liquid barrier layer 48 and the top flat layer 49 (sees Fig. 1 a, 8 and 9).Wish that liquid barrier layer 48 and top flat layer 49 are more longer and wideer than absorbent cores 50.Design top flat layer 49 makes its location towards the wearer, is called towards body surface 16.On the contrary, design liquid barrier layer 48 makes it be positioned to coat towards outer housing 13 and wearer, is called the surface 23 towards clothing.

Absorbent cores 50 comprises the various materials that are fit to absorb and keep urine, menstruation, blood or other bodily exudates.Absorbent cores 50 can comprise various natural or synthetic absorbing materials, the mixture of meltblown fibers, wood pulp cellulose, regenerated cellulose or cotton fiber, paper pulp and other fibers of handling as cellulose fibre, surfactant, or analog.A kind of such material is to become material altogether, and it is made up of the mixture of cellulose fiber peacekeeping synthetic polymeric fibers.Absorbent cores 50 also can comprise increases its absorbefacient compositions, and as the organic or inorganic high-absorbent material of 0-95% (weight), they generally can absorb at least about 15 times, wishes to reach the water greater than 25 times of weight own.Various suitable high-absorbent materials are described in the United States Patent (USP) 4 that was presented to people (Kellenberger) such as khellin's Burger on October 13rd, 1987,699, No. 823 and JIUYUE in 1992 were presented to 5 of khellin's Burger (Kellenberger) on the 15th, 147, in No. 343, they are hereby expressly incorporated by reference.High-absorbent material is on sale in each commercial distribution company, as Dow Chemical Company (Dow Chemical Company), Hoechst CelaneseCorporation, with Allied Colloids, Inc. absorbent cores 50 also can comprise thin layer or receive or Distribution Layer, so that help to keep fibrous absorber or transmit fluidic globality.

A kind of suitable absorbent cores 50 is described among Fig. 8 with decomposing, and it comprises fluid storage layer 51 and receives/Distribution Layer 52.Fluid storage layer 51 has two parts.First receives the part (not shown) that the fluidic capacity of higher per unit area is arranged.479GSM (gram/square metre) fine hair and 260GSM SAP are arranged.Receive part will urinate and the center of user area of isolation.The second portion (not shown) has the capacity of lower per unit area, and 215GSM fine hair and 117GSM SAP are arranged.

Receive/Distribution Layer 52 be arranged on the fluid storage layer 51 towards absorbent cores 50 towards body surface 16, so that help to slow down and spread the fluid surge that may be incorporated into absorbent cores 50.Receive/Distribution Layer 52 can comprise the polyester fiber by 40% 6 daniers (denier), can buy by Hoechst Celanese Corporation, with 60% 3 danier polypropylene, polyethylene sheath core bicomponent fibers, the gas-pervious sticking comb net that the admixture that can buy from Chisso Corporation is formed, its total basic weight restrains in about 120 gram scopes about 50.Several in addition receiving/dispensing materials is described in the United States Patent (USP) 5 that was presented to people (D.Proxmi re) such as D. Proulx rice on March 9th, 1993,192, No. 606, the United States Patent (USP) 5 that was presented to people (Ellis) such as Ellis on January 23rd, 1996,486, No. 166, the United States Patent (USP) 5,490 that was presented to people (Ellis) such as Ellis on February 13rd, 1996, No. 846, be presented on April 23rd, 1996 in Chinese Lignum Rhamnellae people's (Hanson) No. 5,509,915, the United States Patent (USP); These disclosures are hereby expressly incorporated by reference.Illustrated receiving/Distribution Layer 52 is orthogonal, the about 191mm of its length, and the about 45mm of width.Receive/Distribution Layer 52 its size and dimension as disclosed can stop composite members 46 and change by absorbent cores 50 and absorption.

In other embodiments of the present invention, absorption stops that composite members 46 comprises the absorbent cores 50 of monolayer.Absorbent cores 50 comprises the material that is fit to absorb and keep urine, menstruation, blood or other bodily exudates.Absorbent cores 50 can comprise various natural or synthetic absorbing materials, as meltblown fibers, wood pulp cellulose, regenerated cellulose or the cotton fiber that cellulose fibre, surfactant were handled, and the admixture of paper pulp and other fibers, or similar material.A kind of such material is common moulding material, and it is made up of the mixture of cellulose fiber peacekeeping synthetic polymeric fibers.Absorbent cores 50 also can comprise increases its absorbefacient various compositions, 0-95% percentage by weight organic or inorganic high-absorbent material for example, and they generally can absorb at least about 15 times, wish to be higher than the water of 25 times of their own wts.Suitable high-absorbent material is described in the United States Patent (USP) 4 that was presented to people (Kellenberger et al) such as khellin's Burger on October 13rd, 1987,699, No. 823, JIUYUE in 1992 were presented to the United States Patent (USP) 5 of khellin's Burger (Kellenberger) on the 15th, 147, in No. 343, they are inserted here as a reference.High-absorbent material is on sale from each commercial distribution company, as Dow Chemical Company (Dow Chemical Company), Hoechst Celanese Corperation and Allied Colloids, Inc.

12 1 kinds of suitable absorbent cores 50 of underwear are to decompose the ground explanation in Fig. 9, and it comprises fluid storage layer 51.Fluid storage layer 51 comprises the about 470 gram wood pulp celluloses of airlaid and the mixture of about 305 gram high-absorbent materials, and high-absorbent material is to be interposed in or to be wrapped between the 19 gram cellulose chiffons (integument 100).Fluid storage layer 51 wishes to carry out embossing with the positive knurling rolls of coupling.Typical absorbent cores 50 is configured as hourglass shape.Its length is between 17 inches (430mm) and 21 inches (530mm), and its width is between 2.5 inches (64mm) and 3.5 inches (120mm).Absorbent cores 50 wishes gauge is arranged less than about 20mm, particularly less than about 10mm.

Top flat layer 49 is made up of the material of fluid penetrable, so fluidic waste material may also have semisolid refuse, can stop that composite members 46 (perhaps absorbent cores 50) absorbs by arriving absorbent cores 50 and being absorbed.The top flat layer 49 that is fit to can comprise nonwoven web, by the synthetic polymer silk or fibrous spunbond, melt and spray or sticking comb paper web, synthetic fibres and polypropylene, polyethylene, polyester or similar material, the film that also comprises perforation, or paper web or natural polymer silk or fiber, as staple fibre or Cotton Gossypii.In addition, can handle top flat layer 49 to help fluidic transmission with surfactant.In a specific embodiment, top flat layer 49 comprises non-woven spunbond paper web, is made up of the two component silks of sheath core, and 50% polyethylene and 50% polypropylene are arranged, and it has about 20 grams of basic weight/every square metre (being called for short gsm).Fabric is to carry out surface treatment with surfactant, surfactant is at the connection carbonization 2 and Plastics Company (the Union Carbide Chemical and PlasticCompany Inc. on sale in Connecticut, USA Danbury city, of Danbury, Connecticut, U.S.A.), registered trade mark is TRITON X-102.As used herein like that, term " fabric " " refer to that all are weaved, knitting and non-woven fibrous webs.Term " nonwoven web " refers to the material roll lining that difference is weaved or knitting technology forms.

The width of the crotch part 18 between crotch elastomeric element 37 and 39 should be enough wide, so that between the lateral edges 17 and 19 of crotch part 18, hold absorbent cores 50, make absorbent cores 50 can not hinder crotch elastomeric element 37 and 39, and finally can not influence lower limb elastomeric element 32,33,34 and 35.This allows crotch elastomeric element 37 and 39 to shrink and the side of tension crotch, with the wall of top flat layer 49 and liquid barrier layer 48 form barrel-shaped so that keep the ejection of health to make it can not from goods, spill the people dress different with being fit to more size.

The width of crotch part 18 should be too wide makes and seems somewhat too fat to move or uncomfortable, but suitable width between crotch elastomeric element 37 and 38 at least about 2.5 inches (64mm).Width is favourable at about 2.5 inches (64mm) in the scope of about 6.0 inches (152mm).The general width range of crotch part 18 between crotch elastomeric element 37 and 39 is at about 3.5 inches (89mm) to about 5 inches (127mm).Best, Ding Yi width is about 4.25 inches (108mm) like this.

Crotch part 18 is wider than the width of absorbent cores 50 at least about 0.25 inch (6mm).Crotch part 18 is wider than absorbent cores 50 about 0.25 inch (6mm) to about 4 inches (102mm).Crotch part 18 generally is wider than absorbent cores 50 about 0.5 inch (13mm) to about 3 inches (76mm), and more common is to about 2 inches (51mm) from about 0.5 inch (13mm).Preferred each crotch elastomeric element 37 and 39 wide about 0.2 inch (5mm) are to about 0.8 inch (20mm).More preferably, each crotch elastomeric element 37 and 39 width are about 0.2 inch (5mm) to about 0.4 inch (10mm).The overall width of crotch part 18 comprises the width between crotch elastomeric element 37 and 39, and crotch elastomeric element 37 and 39 width and crotch elastomeric element 37 and 39 outsides are to the width of the hem material at the edge of leg opening 28 and 30.

Preferably, the hem material on the edge of the leg opening 28 outside lower limb and crotch elastomeric element 32,33,34,35,37 and 39 and 30 is less than about 0.5 inch (13mm).More preferably, hem material is less than about 0.125 inch (3mm).Wish most it is on the edge of leg opening 28 and 30, to remove hem material.

Absorption stops that the width dimensions of composite members 46 is to determine according to the width of crotch part 18.The width of composite members 46 is the width of the crotch part 18 between crotch elastomeric element 37 and 39 at least.Preferably width equals the width of crotch part 18.

Absorption stops that the whole length of composite members 46 should suitably stretch the two ends of crossing absorbent cores 50, so that help to prevent that liquid surge is by these points when sleeping or being seated.This total length is at least about 12 inches (305mm), and the longitudinal centre line A-A along underwear 12 stretches above crotch part 18 like this.Another kind is that length should be more typically at about 15 inches (381mm) in the scope of about 23 inches (584mm) at about 12 inches (305mm) in the scope of about 30 inches (762mm).The common scope of length is about 17 inches (432mm) to about 21 inches (533mm).Preferably the length of composite members 46 is about 19 inches (483mm).

The absorption that stretch to surpass crotch part 18 stops the width of composite members 46, and the width with crotch part 18 is identical at least.Absorption outside crotch part 18 stops that the width of composite members 46 can narrow down, but may damage the inhibition to leaking.The general absorption stops that the width of composite members 46 is wider than crotch part 18.To about 12 inches (305mm), another kind is to about 10 inches (254mm) from about 4 inches (102mm) to the width that the absorption that stretch to surpass crotch part 18 stops composite members 46 from about 2.5 inches (64mm).Common scope is to about 9 inches (229mm) from about 7 inches (178mm).Preferred width is about 8 inches (203mm).

The present invention plans have various forms of absorptions to stop composite members 46.A kind of preferred composite members has the shape of non-rectangle, stops composite members 46 as the absorption of hourglass or I-girder shape, and it provides widely at the buttocks of finished product underwear 12 and hides.Another preferably absorbs the embodiment that stops composite members 46 is the rectangle that round end is arranged.Substantially orthogonal absorption stops that composite members 46 (as hourglass shape) is to be more preferably, because it can be in the end squarely, so that provide more smooth exterior surface at the back side of underwear 12, provides the cooperation of more comfortable body contour simultaneously again.

With reference to figure 1a-c, 2a-b, 3 and 6, the waist of trousers portion elastomeric element of expression 22 is topped bodyside liner 80.Bodyside liner 80 comprises non-woven or other flexible materials, is used to contact wearer's skin.Below with more detailed description bodyside liner 80.In other embodiment, the part of waist elastic members 22 can be absorbed and stop that composite members 46 is topped at least.With reference to figure 3 and 4, the lower limb elastomeric element 32,33,34 and 35 of expression is topped by bodyside liner 80.In Fig. 1 b, the crotch elastomeric element 37 and 39 of expression is interposed between top flat layer 49 and the liquid barrier layer 48.In other embodiments, crotch elastomeric element 37 and 39 can be interposed between outer housing 13 and the liquid barrier layer 48.Stop the size and dimension of composite members 46 according to absorption, the lower limb elastomeric element 32,33,34 and 35 of at least a portion can be absorbed and stop that composite members 46 is topped.

With reference to figure 5 and 7, waist elastic members 21 is topped by waist lining 26 in another embodiment of expression.Waist elastic members 21 also can be topped by bodyside liner 80.With reference to figure 5 and 7, the leg elastic members 32 of expression and 34 topped by shank lining 38.Stop the size and dimension of composite members 46 according to absorption, a leg elastic members 32,33,34 and a part of 35 can be absorbed and stop that composite members 46 is topped at least.In Fig. 1 a, the crotch part elastomeric element 37 and 39 of expression is absorbed and stops that composite members 46 is topped, is sandwiched between outer housing 13 and absorption stops between the composite members 46 as crotch part elastomeric element 37 and 39.With reference to figure 7, the waist elastic members 22 of expression is topped by bodyside liner 80.Bodyside liner 80 comprises non-woven or other flexible materials, is used to contact wearer's skin.In other embodiment, can be absorbed to small part waist elastic members 22 and to stop that composite members 46 is topped.

80 couples of wearers of bodyside liner have and are obedient to and sensation of softness.Bodyside liner 80 can be the porous chips of any soft flexibility, and it is a fluid permeable, allows liquid to penetrate into its thickness, or impermeable, stops liquid to penetrate into its thickness.The bodyside liner 80 that is fit to can be made by far-ranging various materials, for example natural fiber (as Pilus Caprae seu Ovis or cotton fiber), synthetic fibers (as, polyester or polypropylene fibre), or by the combination of natural fiber and synthetic fibers, or the combination of the plastic foil of netted foam and perforation.

There are many manufacturing technologies can be used for making bodyside liner 80.For example bodyside liner 80 can be woven or non-woven paper web or sheet, for example by the synthetic polymer silk, as polypropylene, polyethylene, polyester or similar material form spunbond, melt and spray or the paper web of sticking comb or the paper web of natural polymer silk such as staple fibre or Cotton Gossypii.Sticking comb paper web can be heat bonding or spray with binding agent with the well-known device of the personage who is familiar with fabric technology.The woven spunbond paper web of bodyside liner 80 right and wrong that is fit to.Ideal bodyside liner 80 is paper web of wired bonding patterns of knitting of spunbond polypropylene nonwoven.The spunbonded materials that is fit to is being positioned at the Rosewell of the Georgia State (Roswell, Kimberly-Clark Corporation GA.) (Kimberly-Clark Corporation) on sale.To about 2.0osy, another kind is about 0.6osy to the weight of bodyside liner 80 from about 0.3 ounce/every square yard (osy).The bodyside liner 80 of underwear can be printed, painted or ornamental embossing.The size in the hole of bodyside liner 80 can be easy to allow air, antiperspirant gas, sweat pass through, and this is because the ventilative property of material.Bodyside liner 80 embossing or bore a hole and become to extend in discrete slit or hole on its length selectively.

Leg opening 28 and 30 position and shape are very important, so that avoid at wearer's crotch and inguinal region is too tight and the buttocks that obtains to be fit to topped, and prevent that underwear from turning forward, and promptly tilt like this, and the relative back waist edge of front waist edge is downward-sloping.Fig. 1 explanation cooperates and the topped most preferred design of buttocks shank.Crossing that the leading edge 72 of leg opening 28 and 30 and 74 curve shape cooperate the dress of underwear 12 can be influential.If curve is too dark, underwear 12 will move downwards and backward, cause the back height degree of short Attacking Midfielder, increase and make the buttocks hypertrophy of underwear 12.This causes, and underwear 12 seems to tilt when wearing, and seems inhomogeneous around wearer's waist, causes along the leading edge 72 and 74 of leg opening 28 and 30 and feels nervous the comfortableness when reducing to wear.

Leg opening 28 and 30 structure are very important to the good function of underwear 12.When as Fig. 1 a underwear 12 being set level, leg opening 28 and 30 rear portion 82 and 84 back edge 76 and 78 major part (at least 51%) be the straight substantially line segment of each self-forming preferably.More preferably, leg opening 28 and 30 rear portion 82 and 84 back edge 76 and 78, the length of whole rear portion 82 and 84 at least about 70% length θ on, be linear substantially.Leg opening 28 and 30 rear portion 82 and 84 back edge 76 and 78 straightway θ should constitute acute angle with the longitudinal centre line A-A of underwear 12.The angle [alpha] that the centrage A-A of best line segment θ and underwear 12 constitutes is between about 45 ° to about 89 °, and is preferred between about 55 ° to about 87 °, most preferred between about 61 ° to about 76 °.If the rear portion 82 of leg opening 28 and 30 and 84 back edge 76 and 78 are defined as shallow curve (at least 6 inches of the radiuses of curve), along Curve selection 2 points, any is positioned at the about 25% of length of a curve, and another point location is in about 75% of length of a curve.Determine the α angle that the centrage A-A with underwear 12 constitutes with the sideline between 2 o'clock.As disclosed, back edge 76 and 78 and longitudinal centre line form acute angle and will reduce moving and pack of absorbent cores 50 in use, guarantee to be fit to preferably body contours and comfortable dress.Such angle helps underwear 12 to cut the bottom of buttocks, improvement cooperates and the minimizing leakage should be appreciated that because leg elastic members 34 and 35 follows back edge 78 and 76 respectively closely, so can be regarded as description leg elastic members 34 and 35 with reference to back edge 78 and 76.

Leg opening 28 and 30 front portion 86 and 88 leading edge 72 and 74 major part (at least 51%) have length β, are preferably formed as straight line.More preferably, leg opening 28 and 30 leading edge 72 and 74 length β are linear in the length of the front portion 86 of leg opening 28 and 30 and 88 at least about 70% basically.30 forward leading edge 72 of leg opening 28 and 74 substantially linear section β should with the centrage angulation x of underwear 12, this angle is between about 62 ° to about 99 °, and is preferred between about 74 ° to about 91 °, most preferably about 85 °.As disclosed, leading edge 72 and 74 and centrage constitute angle, can reduce moving and pack of absorbent cores 50 in use, guarantee to adapt to preferably body contours and comfortable dress.If the leading edge 72 and 74 of the front portion 86 of leg opening 28 and 30 and 88 is confirmed as shallow curve (radius of curve is at least 6 inches), along Curve selection 2 points, any is positioned at the about 25% of length of a curve, and another point location is in about 75% of length of a curve.Determine the x angle that the centrage with underwear 12 constitutes with the line between 2 o'clock.Although can use leading edge 72 and 74 to constitute 90 °, angle at least less times greater than or can make underwear 12 that comfortable cooperation is arranged when the motion less than 90 °.Should be appreciated that because leg elastic members 32 and 33 follows leading edge 72 and 74 respectively closely, so can be regarded as description leg elastic members 32 and 33 with reference to leading edge 72 and 74.

Similarly, the shape of crotch part 18 curves is important.The lateral edges 17 of crotch part 18 and 19 major part have the length ∑, are preferably formed as curve (arc).If (particularly the locating) that curve is too shallow or straight in the end of crotch elastomeric element 37 and 39, may feel tight in the inguinal region of inside, so with cooperating of underwear 12 gap is not being arranged because underwear 12 is not followed the profile of wearer's lower limb, thereby is causing leakage.There is the preferred narrow crotch width of shallow curve also may reduce topped to buttocks.In order to compensate such reducing, the back leg edge 76 and 78 on rear portion 82 and 84 is preferably regulated downwards, increases the α angle.The lateral edges 17 of crotch part 18 and 19 and the rear portion 82 and 84 of leg opening 28 and 30 between curve should a bit begin in the front a little of the centrage B-B of underwear 12, see Fig. 1 a.This allows back leg elastomeric element 34 and 35 can be positioned under the lower limb of buttocks, and help to prevent underwear 12 when walking to arch.The curve crotch part ∑ that this means leg opening 28 and 30 is whole centrage B-B towards underwear 12.Should be appreciated that because crotch elastomeric element 37 and 39 follows edge 17 and 19 respectively closely reference edge 17 and 19 can be regarded as describes leg elastic members 37 and 39.

Can design the edge that leg elastic members 32,33,34 and 35 follows the absorbent cores 50 outside crotch part 18 closely, leg elastic members 32,33,34 and 35 is moved away absorbent cores 50, it is few that 50 pairs of leg elastic members of absorbent cores 32,33,34 and 35 functions are interfered, and can provide around leg opening 28 and 30 better liner effects.In addition, when expanding when absorbent cores 50 absorbing bodily ejections, localized like this leg elastic members 32,33,34 and 35 can keep better with wearer's health contact and with its similar shape.

In preferred embodiments, waist and leg elastic members 22,32,33,34 and 35 difference (with comprising waist elastomeric element 21 in some embodiments) are being connected on the underwear 12 by the prior art known devices under the general extended state, be interposed between outer housing 13 and the bodyside liner 80, this device comprises that ultrasound wave is bonding, heat/pressure is bonding or binding agent is bonding.Crotch elastomeric element 37 and 39 is interposed in liquid barrier layer 48 and absorbs stop between the top flat layer 49 of composite members 46.Crotch elastomeric element 37 and 39 generally under extended state by the prior art known devices, comprise that ultrasound wave is bonding, heat/pressure is bonding or binding agent is bonding to connect.The material category that is suitable as elastomeric element is extensive, including, but not limited to elasticity or stiff rare gauze of elastica thigh, line rubber, flat rubber, elastic webbing, film type rubber, polyurethane and lactoprene, banded lactoprene or foamed polyurethane or formation.(commodity are called LYCRA to suitable material for Wilmington, E.I.Du Pont Company Delaware) (Dupont Company) sale by the Wilmington city that is positioned at the Delaware State ^_Every elastomeric element structurally can be single, polybasic or compound before becoming an integral body with underwear 12.

In another embodiment, part 22,32,33,34,35,37 and 39 comprises that in some embodiments waist elastomeric element 21 is connected on the underwear 12 by the prior art known devices respectively in waist, lower limb and the crotch elasticity under general extended state, be interposed between outer housing 13 and the bodyside liner 80, this device is bonding as ultrasound wave, heat/pressure is bonding or binding agent is bonding.The material category that is suitable as elastomeric element is extensive, including, but not limited to elasticity or stiff rare gauze of elastica thigh, line rubber, flat rubber, elastic webbing, film type rubber, polyurethane and lactoprene, banded lactoprene or foamed polyurethane or formation.The material that is fit in the Wilmington city that is positioned at the Delaware State (Wilmington, (Dupout Company) is on sale in E.I.Du Pont Company Delaware), commodity are called LYCRA ^_Every elastomeric element structurally can be single, polybasic or compound.

1 inch (25mm) to 10 inches (254mm) wide (perpendicular to the A-A as shown in Figure 1a) that have an appointment of the forward and backward body of the part portion 14 and 15 of waist elastic members 22 arranged.More common is, have the forward and backward body of the part portion 14 and 15 of elastomeric element 22 in the waist have an appointment 3 inches (76mm) to about 8 inches (203mm) wide.More common is, width range from about 6 inches (152mm) to about 7.5 inches (191mm).In certain embodiments, wish between forward and backward body portion 14 and 15, to change the width of waist elastic members 22.If narrower part that waist elastic members 22 is arranged in body portion 14 and 15, the scope of width is between about 1 inch (25mm) to about 8 inches (203mm), more common arrives between about 6 inches (152mm) at about 3 inches (76mm), prevailing between about 4 inches (102mm) to about 5.5 inches (140mm).About 100% be applied with waist elastic members 22 to about 400% state under in elongation, more common is in elongation about 150% to about 300%, and prevailing is to extend about 200% to about 275%.Underwear 12 can be constructed like this, makes the tension force of waist elastic members 22 in portion of predecessor 14 different values can be arranged with the warp tension ratio of waist elastic members 22 in back body portion 15.

Waist elastic members 22 can comprise line, thigh, band, band, film, elastic non-woven thing or composite members.Line, thigh, band or band can be many, also can be used as composite members and are applied with.The scope of number of flexure strip that comprises waist elastic members 22 is from 1 to about 100, and is more common from about 10 to about 40, prevailing from about 15 to about 35.Preferably, when waist elastic members 22 is line, with 15 to 40 lines as waist elastic members 22, between the line distance separating from about 0.0625 inch (1.6mm) to about 2 inches (51mm), more preferably from about 0.0625 inch (1.6mm) to about 0.5 inch (13mm), most preferably separate about 0.25 inch (6mm).Although by the average elastomeric material of tight spacing, as line, be placed on and can make the outward appearance of underwear 12 beautiful in the waist elastomeric material 22, the distance between each elastic material sheet can change.Can be applied in such variation in front and back waist edge part 44 and 45, make it to produce the outward appearance of belt.

In preferred embodiments, elastica can be made by any suitable elastomeric material.A kind of suitable material is spandex (Spandex), as LYCRA ^_Line is positioned at Wilmington, Delaware State city, and (Wilmington, (Dupont) is on sale in E.I.Du Pont Company Delaware).The waist elastic members 22 that is fit to includes the line of dtex (decitex) (gram/ten thousand metres) about 100 to about 1200, more common from about 470 to about 940 line, prevailing from about 620 to about 740 line, waist elastic members 22 comprise about 15 to about 35 such lines.Use binding agent 74 waist elastic members 22 is bonded on outer housing 13 and the bodyside liner 80, use current known technology usually to melt and spray or the pattern of vortex applies binding agent.Preferably 74 of binding agents are applied on the waist elastic members 22.The binding agent that is fit to for example comprises Fingley H2096 hotmelt, be positioned at Mil Wo Ji city, the state of Wisconsin (Milwaukee, WI) Ato Findley Adhesives company is on sale.

In the embodiment that comprises waist elastomeric element 21, waist elastomeric element 21 wide about 0.625 inch (1.6mm) is to about 2 inches (51mm).More common is, front and rear body portion 14 and 15 front and back waist edge part 44 and 45 have waist elastomeric element 21 respectively, its wide about 0.25 inch (6mm) to about 1.5 inches (38mm).More common is, width range from 0.5 inch (13mm) to about 1 inch (25mm).Waist elastomeric element 21 is to apply under about 300% state in elongation about 150%, and more common is to apply under about 275% state in elongation about 175%, and prevailing is to apply under about 250% state in elongation about 200%.

Waist elastomeric element 21 can comprise line, thigh, band, film, elastic non-woven thing or composite members.Line, thigh, band or band can be a plurality of and can be used as composite members and apply.The scope of number of elastic material sheet that comprises waist elastomeric element 21 is from 1 to about 20, and is more common from 2 to about 10, more common from 2 to 8, and prevailing from 2 to about 6.Best, when waist elastomeric element 21 is line, use 3 to 6 lines as waist elastomeric element 21, be separated by between line from about 0.0625 inch (1.6mm) to about 1.5 inches (38mm), more preferably from about 0.0625 inch (1.6mm) to about 0.25 inch (6mm), most preferably separate about 0.125 inch (3mm).

Line can be made by any suitable elastomeric material.A kind of suitable material is spandex (Spandex), for example LYCRA ^_Line, (Wilmington, (Dupont) is on sale in E.I.Du Pont Company Delaware) to be positioned at Wilmington, Delaware State city.The waist elastomeric element 21 that is fit to includes the line of dtex (decitex) (gram/ten thousand metres) from about 100 to about 1200, more common is from about 470 to about 940 line, prevailing is from about 620 to about 940 line, and waist elastomeric element 21 comprises about 5 to about 10 such lines.Use binding agent 74 waist elastomeric element 21 is bonded on outer housing 13 and bodyside liner 80 or the waist lining 26, use current known technology usually to melt and spray or the pattern of vortex applies binding agent.Preferably 74 of binding agents are applied on the waist elastomeric element 21.The binding agent that is fit to for example comprises the FindleyH2096 hotmelt, and it is on sale from the AtoFindley Adhesives company in Mil Wo Ji city, the state of Wisconsin (Milwaukee).

Lower limb elastomeric element 32,33,34 and 35 width from about 0.0625 inch (1.6mm) to about 1 inch (25mm), more common is from about 0.25 inch (6mm) to about 1 inch (25mm), and prevailing is to about 0.75 inch (18mm) from about 0.25 inch (6mm).Lower limb elastomeric element 32,33,34 and 35 is to apply under about 300% state from about 100% in elongation, more common is to apply under about 275% state from about 175% in elongation, and prevailing is to apply under about 250% state from about 200% in elongation.

Lower limb elastomeric element 32,33,34 and 35 can comprise line, thigh, band, band, film, elastic non-woven thing or composite members.Line, thigh, band or band can be a plurality of, and can be used as composite members and apply.The number that comprises the elastic material sheet of lower limb elastomeric element 32,33,34 and 35, its scope be from about 1 to about 6, and more common is from about 2 to about 5, and prevailing is from about 3 to about 4.Best, when lower limb elastomeric element 32,33,34 and 35 is line, use 1 to 6 line as lower limb elastomeric element 32,33,34 and 35, distance between the line from about 0.625 inch (1.6mm) to about 0.5 inch (13mm), more preferably from about 0.0625 inch (1.6mm) to about 0.25 inch (6mm), most preferably separate about 0.125 inch (3mm).

Line can be made by any suitable elastomeric material.A kind of suitable material is spandex (Spandex), for example LYCRA ^_Line, (Wilmington, (Dupont) is on sale in E.I.Du Pont Company Delaware) to be positioned at the Wilmington city of the Delaware State.The lower limb elastomeric element 32 that is fit to, 33,34 and 35 include the line of dtex (decitex) (gram/ten thousand metres) from about 470 to about 1200, more common is from about 620 to about 1000 line, prevailing is from about 740 to about 940 line, and lower limb elastomeric element 32,33,34 and 35 comprises about 3 to 6 such lines.Use binding agent 74 lower limb elastomeric element 32,33,34 and 35 is bonded to outer housing 13 and bodyside liner 80, absorbs and stop on composite members 46 or the lower limb lining 38, use current known technology usually to melt and spray or the pattern of vortex applies this binding agent.Preferably 74 of binding agents are applied to lower limb elastomeric element 32,33,34 and 35.The binding agent that is fit to for example comprises Findley H2096 hotmelt, and the Ato Findley Adhesives company that is positioned at Mil Wo Ji city, the state of Wisconsin (Milwaukee) is on sale.

Crotch elastomeric element 37 and 39 width from about 0.0625 inch (1.6mm) to about 1 inch (25mm), more common is to about 1 inch (25mm) from about 0.25 inch (6mm), prevailing is to about 0.75 inch (18mm), as 0.5 inch (13mm) from about 0.25 inch (6mm).Crotch elastomeric element 37 and 39 is to apply under about 300% state from about 100% in elongation, and more common is applies under about 275% state from about 150% in elongation, prevailingly applies under about 250% state from about 200% in elongation.

Crotch elastomeric element 37 and 39 can comprise line, thigh, band, band, film, elastic non-woven thing or composite members.This line, thigh, band or band can be a plurality of, and can be used as composite members and apply.The number that comprises the elastic material sheet of crotch elastomeric element 37 and 39, its scope are from 1 to about 6, and more common is from 2 to about 5, and prevailing is from 3 to about 4.Best, when crotch elastomeric element 37 and 39 is line, can use 1 to 6 line as crotch elastomeric element 37 and 39, between the line at a distance of from about 0.0625 inch (1.6mm) to about 0.5 inch (13mm).More preferably from about 0.0625 inch (1.6mm) to about 0.25 inch (6mm), most preferably separate about 0.125 inch (3mm).

Line can be made by any suitable elastomeric material.A kind of suitable material is spandex (Span dex), for example LYCRA ^_Line, (Wilmington, (Dwpont) is on sale in E.I.Du Pont Company Delaware) from the Wilmington city that is positioned at the Delaware State.The crotch elastomeric element 37 and 39 that is fit to includes the line of dtex (decitex) (gram/ten thousand metres) from about 470 to about 1200, more common is from about 620 to about 1000 line, prevailing is from about 740 to about 940 line, and crotch elastomeric element 37 and 39 comprises about 3 to 6 such lines.Crotch elastomeric element 37 and 39 is bonded to outer housing 13 to application binding agent 74 and absorption stops composite members 46 or lower limb lining 38, uses current known technology to apply this binding agent with the pattern of fusion-jet type vortex usually.Preferably 74 of binding agents are applied to crotch elastomeric element 37 and 39.The binding agent that is fit to for example comprises Findley H2096 hotmelt, and the Ato Findley Adhesives company that is positioned at Mil Wo Ji city, the state of Wisconsin (Milwaukee) is on sale.

In one embodiment, in order to provide the cooperation of being close to body around leg opening 28 and 30, with the side of pulling on crotch part 18, so that shake blue structure around absorbent cores 50 formation, be about 200% under about 250% state in elongation, lower limb elastomeric element 32,33,34 and 35 is applied on the outer housing 13.Crotch elastomeric element 37 and 39 is interposed between liquid barrier layer 48 and the top flat layer 49 under the state of elongation about 200%.Be preferably in when applying elastomeric element, foreleg elastomeric element 32 extends different degree with 33 with back leg elastomeric element 34 and 35, and is applied on the outer housing 13.In one embodiment, foreleg elastomeric element 32 and 33 elongation are lacked than back leg elastomeric element 34 and 35.

In another embodiment, the side that body cooperates and pull on crotch part 18 of being close to around leg opening 28 and 30 is provided, so that shake blue structure around absorbent cores 50 formation, be about 200% under about 250% the state in elongation, with lower limb elastomeric element 32,33,34 and 35 and crotch elastomeric element 37 and 39 be applied on the outer housing 13.Be preferably in when applying elastomeric element, foreleg elastomeric element 32 extends different degree with 33 with back leg elastomeric element 34 and 35, and is applied on the outer housing 13.In one embodiment, foreleg elastomeric element 32 and 33 elongation are lacked than back leg elastomeric element 34 and 35.

Have three section elastomeric elements surround each leg opening 28 and 30 (three section elastomeric elements comprise foreleg elastomeric element 32 and 33, back leg elastomeric element 34 and 35 and crotch elastomeric element 37 and 39) embodiment in, foreleg elastomeric element 32 and 33 and the elongation of crotch elastomeric element 37 and 39 be less than back leg elastomeric element 34 and 35.Best foreleg elastomeric element 32 and 33 and crotch elastomeric element 37 and 39 elongations about 200%, and back leg elastomeric element 34 can have better dress to cooperate with about 250% 3 the section elastomeric element system of 35 elongations with different tension force, inguinal region is felt nervous less, and the pack of the crotch part 18 that is caused by the higher contraction of leg elastic members is fewer.Back leg elastomeric element 34 and 35 helps to keep the buttocks of underwear 12 can not make absorbent cores 50 stable not convergent beams in use because motion produces creep under higher elongation, and pack often causes that the dress of leakage and underwear 12 is uncomfortable.

There are being three section elastomeric elements to surround in the embodiment of each leg opening 28 and 30, crotch elastomeric element 37 and 39 movable part can be overlapping with the movable part of lower limb elastomeric element 32,33,34 and 35, (represent such configuration with crotch elastomeric element 39 and lower limb elastomeric element 32 and 35) as representing among Fig. 1 a.Crotch and lower limb elastomeric element 32,33,34,35,37 and 39 and the movable part of waist elastomeric element 21 and waist elastic members 22 be defined as a part that goods 10 is applied the elastomeric element of contractility.

In Fig. 1 a, represent three another kind of configurations that the section elastomeric element surrounds each leg opening 28 and 30, wherein the movable part of the overlapping lower limb elastomeric element 34 of the movable part of crotch elastomeric element 37 but the movable part of not overlapping lower limb elastomeric element 33.This just forms gap 90 in the elastomeric element of encirclement leg opening 30 in portion of predecessor 14.The size range in gap 90 be from about 3 inches (76mm) to about 0.125 inch (3mm), more common from about 2 inches (51mm) to about 0.25 inch (6mm), prevailing from about 1 inch (25mm) to about 0.5 inch (13mm).

Gap 90 makes the dress of underwear 12 more comfortable, reduce because lower limb elastomeric element 32 and 33 and crotch elastomeric element 37 and 39 in use with some body shape and size and movable may cause binding or abrasive sensation arranged.In addition, preceding lower part of the body portion 42 is smoother, and more distinguished underwear 12 is provided.

Three section elastomeric elements of expression surround in the another kind of configuration of each leg opening 28 and 30 in Figure 16, the movable part of the overlapping lower limb elastomeric element 32 of the movable part of crotch elastomeric element 39 wherein, but the movable part of not overlapping lower limb elastomeric element 35.This just forms gap 92 in the elastomeric element of encirclement leg opening 28 in back body portion 15.The size range in gap 92 be from about 3 inches (76mm) to about 0.125 inch (3mm), more common from about 2 inches (51mm) to about 0.25 inch (6mm), prevailing from about 1 inch (25mm) to about 0.5 inch (13mm).

Gap 92 makes the dress of underwear 12 more comfortable, reduce because lower limb elastomeric element 34 and 35 and crotch elastomeric element 37 and 39 in use with some body shape and size and movable may cause binding or abrasive sensation arranged.In addition, back lower part of the body portion 43 is smoother, and more distinguished underwear 12 is provided.

Three section elastomeric elements of expression surround in the another kind of configuration of each leg opening 28 and 30 in Fig. 1 b, and wherein the movable part of crotch elastomeric element 37 is not overlapping with the movable part of lower limb elastomeric element 33 and 34.This just forms gap 90 and 92 respectively in the elastomeric element that surrounds leg opening 28 and 30 respectively in forward and backward body portion 14 and 15. Gap 90 and 92 size range be from about 3 inches (76mm) to about 0.125 inch (3mm), more common from about 2 inches (51mm) to about 0.25 inch (6mm), prevailing from about 1 inch (25mm) to about 0.5 inch (13mm).

Gap 90 and 92 makes the dress of underwear 12 more comfortable, reduce because lower limb elastomeric element 32,33,34 and 35 and crotch elastomeric element 37 and 39 in use with some body shape and size and movable may cause binding or abrasive sensation arranged.In addition, back lower part of the body portion 43 is smoother provides more distinguished underwear 12.

Have two section elastomeric elements surround (see Fig. 2 a) leg opening 28 and 30 (two section elastomeric elements comprise foreleg elastomeric element 32 and 33 and back leg elastomeric element 34 and 35) embodiment in, foreleg elastomeric element 32 and 33 elongation are less than back leg parts 34 and 35.Preferably foreleg parts 32 and 33 elongations are about 200%, back leg elastomeric element 34 and 35 elongations about 250%.Two section elastomeric element systems can have better dress to cooperate with different tension force, and inguinal region is felt nervous less, and is fewer by crotch part 18 packs that the higher contraction of leg elastic members causes.Back leg elastomeric element 34 and 35 helps to keep the buttocks of underwear 12 can not make absorbent cores 50 stable not convergent beams in use because motion produces creep under higher elongation, and pack often causes that the dress of leakage and underwear 12 is uncomfortable.

Three section elastomeric elements of expression surround in another configuration of each leg opening 28 and 30 in Fig. 1 c, and wherein the movable part of lower limb elastomeric element 32 is not overlapping with the movable part of lower limb elastomeric element 35.This is just in portion of predecessor 14, back body portion 15 or at the top of forward and backward body portion 14 and 15 leg opening 28 among both, surrounds in the elastomeric element of leg opening 28 and forms gap 102.The size range in gap 102 be from about 3 inches (76mm) to about 0.125 inch (3mm), more common from about 2 inches (51mm) to about 0.25 inch (6mm), prevailing from about 1 inch (25mm) to about 0.5 inch (13mm).Gap 102 makes the dress of underwear 12 more comfortable, avoid since lower limb elastomeric element 32,33,34 and 35 in use with some body shape and size and movable may cause binding or abrasive sensation arranged.In addition, owing to eliminated " V shape groin line " on the top of wearer's lower limb, gap 102 provides more distinguished underwear 12.

There are being two section elastomeric elements to surround in the embodiment of each leg opening 28 and 30, lower limb elastomeric element 32 and 33 movable part can be overlapping with the movable part of lower limb elastomeric element 34 and 35, (represent such configuration with lower limb elastomeric element 32 and lower limb elastomeric element 35) as representing among Fig. 2 a.

In Fig. 2 a, represent that two section elastomeric elements surround in the another kind of configuration of each leg opening 28 and 30, wherein the movable part of lower limb elastomeric element 33 is not overlapping with the movable part of lower limb elastomeric element 34.This just forms gap 94 in the elastomeric element of encirclement leg opening 30 in portion of predecessor 14.The size range in gap 94 be from about 3 inches (76mm) to about 0.125 inch (3mm), more common from about 2 inches (51mm) to about 0.25 inch (6mm), prevailing from about 1 inch (25mm) to about 0.5 inch (13mm).

Gap 94 makes the dress of underwear 12 more comfortable, avoid since lower limb elastomeric element 32,33,34 and 35 in use with some body shape and size and movable may cause binding or abrasive sensation arranged.

Two section elastomeric elements representing in Fig. 2 a surround in another configuration of each leg opening 28 and 30, and wherein the movable part of lower limb elastomeric element 32 is not overlapping with the movable part of lower limb elastomeric element 35.This just forms gap 104 in portion of predecessor 14, back body portion 15 or forward and backward body portion 14 and 15 among both in the top of leg opening 28 surrounds the elastomeric element of leg opening 28.The size range in gap 104 be from about 3 inches (76mm) to about 0.125 inch (3mm), more common from about 2 inches (51mm) to about 0.25 inch (6mm), prevailing from about 1 inch (25mm) to about 0.5 inch (13mm).Gap 104 makes the dress of underwear 12 more comfortable, reduce since lower limb elastomeric element 32,33,34 and 35 in use with some body shape and size and movable may cause binding or abrasive sensation arranged.In addition, owing to eliminated " V shape groin line " on the top of wearer's lower limb, gap 104 provides more distinguished underwear 12.

In the embodiment that single portion section elastomeric element (see figure 3) encirclement leg opening 28 and 30 (single portion section elastomeric element comprises lower limb elastomeric element 96 and 98) is arranged, lower limb elastomeric element 96 and 98 is to apply under about 300% condition in elongation about 100%, more common is to apply under about 175% to 275% the condition of elongation, and prevailing is to apply under about 250% condition in elongation about 200%.

Waist elastic members 22 is surrounded the body portion 14 and 15 of underwear 12 circumferentially, and independent action is with consistent with various body types and fat or thin profile phase.This provides in given buttocks size range smoothly, is close to and comfortable dress.In each embodiment of waist elastomeric element 21 is arranged, use has higher elongation, tighter spacing and the waist elastomeric element 21 of comparatively large cross-sectional area than waist elastic members 22, make underwear 12 at the waist that is run into and buttocks than round shape being arranged in the very loose scope and good waist cooperates.The elongation of waist elastic members 22 in front and rear body portion 14 and 15 can be different.

The waist elastic members 22 that is preferably in the portion of predecessor 14 is spaced apart with foreleg elastomeric element 32 and 33.Waist elastic members 22 in back body portion 15 is spaced apart with back leg elastomeric element 34 and 35.Distance range between waist elastic members 22 and leg elastic members 32,33,34 and 35 can be about 0.125 inch (3mm) to about 3 inches (76mm), more common from about 0.25 inch (6mm) to about 2 inches (51mm), more common from about 0.25 inch (6mm) to about 1.5 inches (38mm).Need not be identical size in portion of predecessor 14 with spacing in 15.But any one or the waist elastic members among both 22 can be respectively be connected with 35 with front or rear lower limb elastomeric element 32,33,34 in forward and backward body portion.In having each embodiment of waist elastomeric element 21, preferably waist elastic members 22 is spaced apart with waist elastomeric element 21 and lower limb elastomeric element 32,33,34 and 35.

But, any one or the waist elastic members among both 22 in front and rear body portion, can be connected with any one or both in waist elastomeric element 21 and the lower limb elastomeric element 32,33,34 and 35, wherein waist elastic members 22 is connected with 35 with part lower limb elastomeric element 32,33,34 at least.Very comfortablely to be worn in the buttocks scope be to about 45 inches (1143mm) from about 36 inches (914mm) to its size in underwear 12.In portion of predecessor 14 about 4 inches (102mm) are wide for its waist elastic members 22, and about 6.25 inches (159mm) are wide in the body portion 15 of back.Waist elastic members 22 can at a distance of from about 0.0625 inch (1.6mm) to about 0.5 inch (13mm).Preferably, waist elastic members 22 separates from about 0.0625 inch (1.6mm) to about 0.25 inch (6mm).Most preferably, waist elastic members 22 separates about 0.125 inch (3mm).

Absorption stops that composite members 46 stretches upwards towards waist opening 20 in portion of predecessor 14 and/or back body portion 15, is made itself and wearer's body-accommodating by waist elastic members 22 applied forces.From front and back lower part of the body portion 42 and 43 transition to front and back upper body 40 and 41 is very level and smooth like this.

In each embodiment of waist elastomeric element 21 is arranged, wish that waist elastomeric element 21 has than the bigger tension force of waist elastic members 22 per unit width in upper body 40 and 41, so that in the scope of waist to the buttocks ratio of various body shapes, provide the waist of being close to cooperate.In preferred embodiments, the tension force of waist elastomeric element 21 is consistent with the tension coordinating of waist elastic members 22, so that form the cooperation of being close to around waist opening 20, provides simultaneously from upper body 40 and 41 to the level and smooth transition of front and back waist edge part 44 and 45.But, the tension force and the LYCRA of waist elastomeric element 21 and waist elastic members 22 ^_The line number can be different.

In front and rear body portion 14 and 15, lower limb lining 38, waist lining 26 and/or top flat layer 49 can be expanded, so that the inside of topped forward and backward body portion 14 and 15.In another embodiment, lower limb lining 38, waist lining 26 and/or top flat layer 49 can not comprise center crotch part 18, stop composite members 46 topped these center crotch parts by being applied with to absorb.In body portion 14 and 15, absorb and stop that composite members 46 and lining 80 are overlapping, should be applied to composite members 46 lining 80 top of any existence so that contact with the wearer.But absorption stops that the lap of composite members 46 can be interposed between outer housing 13 and the bodyside liner 80.

To waist elastic members 22, lower limb elastomeric element 32,33,34 and 35 and each embodiments of crotch elastomeric element 37 and 39 are arranged, each elastomeric element 22,32,33,34,35,37 and 39 tensile following ranges are listed in the following table 1

Table 1

	Tolerance interval		Tolerance interval more		Tolerance interval
							Lower limit	The upper limit	Lower limit	The upper limit	Lower limit	The upper limit
Waist elastic members 22	10 grams	150 grams	30 grams	100 grams	45 grams	75 grams
Leg elastic members 32,33,34 and 35	20 grams	400 grams	80 grams	220 grams	120 grams	180 grams
Crotch elastomeric element 37 and 39	20 grams	400 grams	80 grams	220 grams	120 grams	180 grams

To waist elastomeric element 21, waist elastic members 22, lower limb elastomeric element 32,33,34 and 35 are arranged, crotch elastomeric element 37 and each embodiment of 39, each elastomeric element 21,22,32,33,34,35,37 and 39 tensile following ranges are listed in the following table II.

The table II

	Tolerance interval		Tolerance interval more		Tolerance interval
								Lower limit	The upper limit	Lower limit	The upper limit	Lower limit	The upper limit
Waist elastomeric element 21	30 grams	300 grams	50 grams	200 grams	100 grams	175 grams
							Waist elastic members 22	10 grams	150 grams	20 grams	100 grams	40 grams	60 grams
Lower limb elastomeric element 32,33,34 and 35	20 grams	400 grams	80 grams	220 grams	120 grams	180 grams
							Crotch elastomeric element 37 and 39	20 grams	400 grams	80 grams	220 grams	120 grams	180 grams

Waist elastomeric element 21, waist elastic members 22, crotch elastomeric element 37 and 39 and each tension force of lower limb elastomeric element 32,33,34 and 35 determine as follows.Each elastomeric element 21,22,32,33,34 and 35 is got 10mm sample wide and that 51mm is long to be tested.The tension force that illustrates in the II at table 1 and table is that the gram numerical table with every 10mm width shows.If the size of test specimen is with the wide variation of 10mm, the test data that obtains must be normalized into the 10mm width.In period 1 elongation 100%.Under indoor temperature and humidity, measure tension force.

Can form side seams 64 and 70 in the inboard or the outside of underwear 12, perhaps underwear 12 be formed flat latasuture, make underwear 12 seem to make fineness more, expose clothes inside by side seams 64 and 70 so that prevent.Selectively, the lateral edges 60,62,66 and 68 of front and rear body portion is not overlapping, but the also side direction of formation riglet stretches outwardly.Side seams 64 and 70 should be minimum on width, provides enough intensity simultaneously, so that can pull on and take off many times and not in the time and can tear and rupture 24 hours wear.Side seams that is fit to and sealing are described in the United States Patent (USP) 4 that JIUYUE in 1986 was presented to people (Strohbeen) such as Si Teluobin on the 9th, 610, No. 681, be presented to people's (Heran) such as He Lun 4 on January 10th, 1987,641, No. 381 and be presented to people's (Heran) such as He Lun 4,646 on March 3rd, 1987, in No. 362, they are hereby expressly incorporated by reference.

The lateral edges 64 and 70 of outer housing 13 seals by known devices in the prior art respectively., stitching bonding as ultrasound wave, heat/pressure binding or binding agent are bonding.The seam intensity of the maximum that can reach depends on the parameters that used material, adherent pattern, adherent width and processing are set: the time of staying, power and pressure.The general using ultrasound ripple of side seams that is fit to is bonding, so that reach the seam intensity that side seams 64 and 70 in use can not be torn and tear.

Lateral edges 64 and 70 can have not stick portion in the outside of bonding zone, so that provide soft edge for each side seams 64 and 70.This not the width range of bonding part can be from 0 to about 13mm, preferred from about 1 to about 6mm, most preferred from about 2 to about 3mm.Another kind is that the width of whole seam (bonding part adds not bonding part) can be less than about 0.6 inch (15mm).If seam advanced to prune or cut to the outward flange of close bonding zone, can produce the edge of point along the edge of seam, the skin that it may hook clothes or stimulate the wearer.

Described the present invention like this in detail, will very clearly can carry out variations and modifications and can not deviate from aim of the present invention.Variation that plan is such with all and modification all are included in the category of the present invention, as following claim is defined.

Claims (43)

1. Single-use underpants, which include: a) an outer cover having front and rear body sections joined by a crotch section, said front and rear body sections joined together to form a waist opening and two leg openings; b) an absorbent barrier composite, associated with said crotch portion, having a liquid impermeable layer, a liquid permeable layer and an absorbent core; and c) the outer cover includes front leg elastics, rear leg elastics, and crotch elastics positioned around each of the leg openings to form a gather around each of the leg openings, waist elastics positioned around each of the leg openings around the location, around the front and rear body, so as to form the gathering of the front and rear body. 2. The disposable underpants of claim 1, wherein said absorbent barrier composite is substantially contiguous with an edge of the crotch portion. 3. The disposable underpants of claim 1, wherein said absorbent core comprises: pulp, superabsorbent material, meltblown fibers, adhesives, stabilizers, nonabsorbent fibers, foam, and mixtures thereof. 4. The disposable underpants of claim 2, wherein said absorbent core is selected from a group of materials comprising pulp, superabsorbent material, meltblown fibers, adhesives, stabilizers, non-absorbent permanent fibers, foams and their mixtures. 5. The disposable underpants of claim 1, wherein said absorbent barrier composite covers a portion of said front and rear body portions. 6. The disposable underpants of claim 1, wherein said absorbent core has a total absorbent capacity of at least 100 grams. 7. The disposable underpants of claim 5, wherein said absorbent core has a total absorbent capacity of at least 100 grams. 8. The disposable underpants of claim 6, wherein said absorbent core has a total absorbent capacity of from about 100 grams to about 1500 grams. 9. The disposable underpants according to claim 1, wherein said front leg elastics, rear leg elastics, crotch elastics, and waist elastics are bonded to the disposable underpants by an adhesive, The compound is applied directly to the elastic. 10. The disposable underpants of claim 1, wherein each leg opening includes a rear portion having a rear edge, and each said rear edge is substantially linear and forms a distance from the longitudinal centerline of said underpants. An angle of about 55° to about 87°. 11. The disposable underpants of claim 1, wherein each leg opening includes a front portion having a front edge, and each said front edge is substantially linear. and form an angle of about 62° to about 99° with the longitudinal centerline of the disposable underpants. 12. The disposable underpants of claim 10, wherein each leg opening includes a front portion having a front edge, and each said front edge is substantially linear and aligned with said disposable underpants. The longitudinal centerlines form an angle of from about 62° to about 99°. 13. The disposable underpants of claim 1, further comprising a waist elastic member positioned about said waist opening to form a gather around said waist opening. 14. The disposable underpants of claim 12, further comprising a waist elastic member positioned about said waist opening to form a gather around said waist opening. 15. The disposable underpants according to claim 13, wherein said waist elastic member has a tension greater than the tension per unit width of said waist elastic member. 16. The disposable underpants of claim 14, wherein said waist elastic member has a tension greater than the tension per unit width of said waist elastic member. 17. The disposable underpants of claim 15, wherein said rear leg elastics have a tension greater than the tension per unit width of said crotch elastics or front leg elastics. 18. The disposable underpants of claim 16, wherein said rear leg elastics have a tension greater than the tension per unit width of said crotch elastics or front leg elastics. 19. 17. The disposable underpants of claim 17, wherein said waist elastic members for said disposable underpants extend from said waist opening to said leg openings. 20. 18. The disposable underpants of claim 18, wherein said waist elastic members for said disposable underpants extend from said waist opening to said leg openings. twenty one. The disposable underpants of claim 17, wherein said waist elastics for said disposable underpants extend from said waist opening and are spaced from leg elastics by a distance of at least 0.25 inches. twenty two. The disposable underpants of claim 18, wherein said waist elastics for said disposable underpants extend from said waist opening and are spaced apart from leg elastics by a distance of at least 0.25 inches. twenty three. The disposable underpants of claim 22, wherein said front leg elastics and crotch elastics surrounding each leg opening define a gap between said front leg elastics and said crotch elastics. twenty four. The disposable underpants of claim 22, wherein said rear leg elastics and crotch elastics surrounding each leg opening define a gap between said rear leg elastics and said crotch elastics. 25． The disposable underpants of claim 23, wherein said rear leg elastics and crotch elastics surrounding each leg opening define a gap between said rear leg elastics and said crotch elastics. 26． The disposable underpants of claim 18, wherein said front leg elastics comprise a plurality of individual elastic strands, said rear leg elastics comprise a plurality of individual elastic strands, and said waist elastics comprise A plurality of individual elastic strands, the leg and waist elastic strands are spaced about 1 mm to about 13 mm apart. 27． The disposable underpants of claim 1, wherein said crotch portion is wider than said absorbent core. 28． 28. The disposable underpants of claim 28, wherein the width of said crotch portion is dimensioned to be at least about 6 mm wider than the width of said absorbent core. 29． 28. The disposable underpants of claim 28, wherein said crotch portion is at least about 102 mm wide. 30． Single-use underpants, which include: a) An outer cover having front and rear body parts connected by a crotch part, said front and rear body parts joined together to form a waist opening and two leg openings, wherein each leg opening includes a front part with a front edge and a rear part with a rear edge department; b) an absorbent barrier composite, associated with said crotch portion, having a liquid impermeable layer, a permeable layer and an absorbent core; c) the majority of said rear edge length of said rear portion of each said leg opening is linear, said linear portion forming an angle with the longitudinal centerline A-A of said panty of about 55° to about 87°; and d) the majority of said front edge length of said front portion of each said leg opening is linear, said linear portion forming an angle with the longitudinal centerline A-A of said panty of about 62° to about 99°. 31． The disposable underpants of claim 30, further comprising said outer cover comprising front leg elastics, rear leg elastics, and crotch elastics positioned about each of said leg openings to form each said leg opening. A gather around the opening, around which the waist elastic is positioned, surrounds the front and rear bodice to form the gather of the front and rear bodice. 33． 31. The disposable underpants of claim 31, further comprising a waist elastic member positioned about said waist opening to form a gather around said waist opening. 33． The disposable underpants according to claim 32, wherein the tension of said waist elastic member is greater than the tension per unit width of said waist elastic member. 34． The disposable underpants of claim 33, wherein the tension of said rear leg elastics is greater than the tension per unit width of said crotch elastics or front leg elastics. 35． 34. The disposable underpants of claim 34, wherein said waist elastic members extend from said waist opening to said leg openings for said disposable underpants. 36． 34. The disposable underpants of claim 34, wherein said waist elastics for said disposable underpants extend from said waist opening and are spaced apart from leg elastics by a distance of at least 0.25 inches. 37． The disposable underpants of claim 32, wherein said front leg elastics and crotch elastics surrounding each leg opening define a gap between said front leg elastics and said crotch elastics. 38． The disposable underpants of claim 32, wherein said rear leg elastics and crotch elastics surrounding each leg opening define a gap between said rear leg elastics and said crotch elastics. 39． 37. The disposable underpants of claim 37, wherein said rear leg elastics and crotch elastics surrounding each leg opening define a gap between said rear leg elastics and said crotch elastics. 40． The disposable underpants of claim 30, wherein said front leg elastics comprise a plurality of individual elastic strands, said rear leg elastics comprise a plurality of individual elastic strands, and said waist elastics comprise A plurality of individual elastic strands, the leg and waist elastic strands are spaced about 1 mm to about 13 mm apart. 41． The disposable underpants of claim 30, wherein said crotch portion is wider than said absorbent core. 42． 41. The disposable underpants of claim 41, wherein the width of the crotch portion is sized to be at least about 6 mm wider than the width of the absorbent core. 43． The disposable underpants of claim 41, wherein said crotch portion is at least about 102 mm wide.

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