MXPA00012979A - Directionally preferential waste passage member for use with disposable absorbent article - Google Patents

Abstract

The present invention provides an absorbent article having a first waist region, an opposed second waist region, a crotch region disposed between the first waist region and the second waist region. The absorbent article preferably comprises a liquid impervious backsheet material, an absorbent core and a directionally preferential waste passage member. The waste passage member has a body facing surface and an opposed garment facing surface, at least a portion of the body facing surface of the waste passage member including a soluble material capable of dissolving when contacted by bodily exudates so as to permit the bodily exudates to pass through the waste passage member in a direction generally away from the wearer's skin. At least a portion of the garment facing surface of the waste passage member includes a barrier material which resists penetration by the bodily exudates in a direction opposite from the first direction. The waste activated barrier member is preferably disposed in at least a portion of the crotch region of the absorbent article.

Description

PIRECCONICALLY PREFERENTIAL WASTE PASSING MEMBER TO BE USED WITH DISPOSABLE ABSORBENT ARTICLE FIELD OF THE INVENTION The present invention relates to a directionally preferential waste passage member that can be used separately or in combination with absorbent articles such as diapers, adult incontinence products, sanitary napkins, and the like to reduce air pollution. 0 skin from the waste discharged from the body. More particularly, the invention relates to absorbent articles-disposable which include one or more waste stream members that allow the exudates of the body to pass through the vessel or in a direction, but in the same direction. dare! stringe ei? t, w? m¡er; ?? e exudates through! member or members in the reverse direction. I > BACKGROUND OF THE INVENTION The main function of absorbent articles such as diapers and trusses for adult incontinence is to prevent body exudates from staining, or wetting or otherwise contaminating clothes or other items such as sheets, which may be in contact with the body. the user. In recent years, disposable diapers, such as those disclosed in U.S. Patent No. 5,151,092 issued to Bueli and others, have become very popular and have generally replaced the durable fabric absorbent articles because of its convenience and reliability. However, despite the effectiveness of these disposable absorbent articles, the exudates of! body often continue to leak or are stored in the diaper in such a manner that the exudates stain and / or irritate the user's skin. Additionally, exudates from the body frequently aggressively adhere to the skin, increasing the difficulty of cleansing and increasing the likelihood of chronic residual contamination. The undesirable effects of leakage and / or inappropriate containment, difficult cleaning, and / or residual contamination of the skin are especially evident with respect to fecal material deposited in the diaper. The fecal eses contained in a diaper can damage the wearer's skin during the time and the faecal stools that escape from the diaper almost invariably present dirty, unpleasant cleaning. In this way, several attempts have been made to add characteristics of the diapers such as barriers, cavities, spacers, transverse barriers and the like to limit the movement of the matena! fecal through the supepor sheet and / or to better confine the fecal material within the pa. However, these attempts have generally been unsuccessful because of their cost and complexity. Several attempts have also been made for rop. Rotate suppressor sheets with large openings through which bodily waste can pass without resistance (An example of an opening in an article applied to ascorns is disclosed in Japanese Patent Application open to the public No. HEI-2- 31756, filed on July 22, "S998 and pub each February 1, 1990) - However, these modalities are difficult to use because in order to provide any benefit, the person seeking care must align proper way Opening with the anus and / or the urethra of the user. This is a particularly difficult task when placing the diaper on an active child or when fitting a garment to oneself. In addition, the opening must in some way be maintained in an appropriate position during all the time the diaper is worn to be effective. Accordingly, it would be desirable to provide an element that helps to maintain fecal eschar and other exudates from the body away from the skin of the user. In addition, it would be advantageous to provide an inexpensive disposable absorbent article with the ability to minimize negative effects. of the fecal eses and other corporal waste on the user or the person who procures the care. It would also be advantageous to provide an article that can be used in combination with an absorbent article, which allows body exudates to pass in one direction but resist their passage in the opposite direction. It would also be desirable to provide a barrier sheet that can be used in combination with the disposable article that provides an opening through which a barrier is disposed. can pass the body exudates where necessary in response to body exudates that are expelled from the body. Finally, it would be advantageous to provide said barrier sheet that is capable of being dissolved by the body exudates that move away from the skin, but resisting the passage of these exudates back into the skin. 3REVE DESCRIPTION OF J ^ rWE CjO -, A disposable article having a waist region, a second region of opposite waist, and a crotch region disposed between the first region of the waist and the second region of belt. The absoibent article preferably comprises: a backsheet material impervious to liquid; a directionally preferential waste passage member and an absorbent core disposed between the backsheet and the waste passage member. The waste passage member preferably includes a blade having a body-facing surface and a surface that gives the opposite garment, at least a portion of the surface that faces the body of the waste passage member including a material Soluble enough to dissolve when placed in contact with body exudates to allow body exudates to pass through the waste passage member. At least a portion of the surface that gives the garment of the waste passage member preferably includes a barrier material that resists penetration of body exudates. The waste passage member is preferably disposed in at least a portion of the crotch region of! absorbent article.

BRIEF DESCRIPTION OF THE DRAWINGS Although the description concludes with the claims that point out in a particular way and claim differently the exposed matter that is considered as the present invention, it is believed that the description will be better understood from the following descriptions which are taken in combination with the accompanying drawings, in which similar designations are used to designate substantially identical elements. Figure 1 is a plan view of a honeycomb including one embodiment of the present invention, Figure 2 is a cross-sectional view of one embodiment of the present invention shown as it would be configured in a user. plan view of a modality of the directionally preferential waste passage member of the present invention Figure 4 is a cross-sectional view of a directionally wasteful waste passage member shown in Figure 2. Figure 5 is a view in transverse section of an alternative embodiment of a directionally preferential waste passage member Figure 6 is a plan view of an alternative embodiment of the present invention.

Figure 7 is a partial, enlarged view of a mode of the directionally wasteful waste passage member; of the present invention.

DETAILED DESCRIPTION OF THE INVENTION As used herein, the term "absorbent article" refers to the devices that absorb and contain exudates of! body, and more specifically, refers to devices that are placed against or close to the user's body to absorb and contain the various exudates discharged from the body. AND! term "exudates" and "body wastes" are used herein to mean urine, faeces, blood, mucous, pus, oils and combinations of these and other substances - discharged from the human body. The term "disposable" is used herein to describe absorbent articles that are not generally intended to be washed or restored or reused in another way as an absorbent article (ie, they are intended to be discarded afterwards). of simple use and, most likely, to be recycled, combated or otherwise discarded in an environmentally compatible way.) (As used here, the "arranged" term is used to imply that a The element or elements of the diaper is formed (attached and placed) in a particular place or position as a unitary structure with other diaper elements or as a separate element joined to another diaper element., the term "united" encompasses configurations by which one element is directly insured to the other element by fixing the element directly to! another elemente, and configurations by which an element scan indirectly secured to another element by fixing the element to a member or intermediate members which in turn is fixed to the other element.) A "unitary" absorbent article refers to absorbent articles that they are formed of separate parts joined together to form a coordinated entity such that they do not require separate manipulated parts '-al', "« <• as a separate bra and liners. A preferred embodiment of an absorbent article of the present invention is the unitary disposable absorbent article, diaper 20, shown in Figure 1. As used herein the term "diaper" refers to an absorbent article generally worn by infants and incontinent persons around the lower torso. The present invention is also applicable to other absorbent and non-absorbent articles such as incontinence briefs, incontinence undergarments, absorbent inserts, diaper liners and liners, feminine hygiene garments such as tampons, catamenial pads and interlabial devices. , cleaning cloths, mechudos, bandages and similar. Figure 1 is a plan view of the diaper 20 of the present invention in a flattened state, with parts of the structure being cut away to show the construction of the cloth more carefully! 20. The portion of the cloth * 20 that gives the user is oriented towards e! observer. As shown in Figure 1, the diaper 2.0 preferably comprises a topsheet 24 permeable to! liquid: a posterior sheet 2f > waterproof liquid; an absorbent core 28. which is preferably positioned between at least a portion of the topsheet 24 and the backsheet 26; panels lateral 30; Elasticized folds for leg 32; an elastic feature for the waist 34; and a generally designated fastening system 40. The diaper 20 is shown in IB Figure 1 to have a front waist region 36, a posterior region of the waist. 39 opposite the front waist region 36 and a crotch region 37 located between, the front waist region and the rear waist region. The periphery of the diaper 20 is defined by the outer edges of the diaper 20, in which the longitudinal edges 50 run generally parallel to the longitudinal center line 100 of the diaper 20 and the end edges 52 run between the longitudinal edges 50 generally parallel to each other. the lateral centerline 110 of the diaper 20.

The chassis 22 of the diaper 20 comprises the main body of the diaper 20. The chassis 22 comprises at least a portion of the absorbent core 28 and preferably an outer covering layer including the topsheet 24 and the backsheet 26 If the absorbent article comprises a separate fastener and liner, the chassis 22 generally comprises the fastener and the liner. (For example, the fastener may comprise one or more layers of material to form the outer cover of the article and the torso may comprise an absorbent assembly that includes a top sheet, a back sheet, and an absorbent core. The fastener and / or the liner may include a fastener that is used to retain the place to the liner throughout the time of use.) For the unitary absorbent articles, the chassis 22 comprises the main structure of the diaper with other features added to form the composite structure of! Diaper Although the top sheet, 24, back sheet 2 and chassis 22 can be assembled in a variety of well-known configurations, the preferred layouts of the cloth are described! in the United States text, 3,880,003, entitled "Lateral portions, contraband for cloth, throw it away", which was copied to Kenneth B. Buell. January 14, 1975: / in United States Patent No. 5 151, 092 issued to Buel! on September 9, 1992; and in U.S. Patent No. 5,221, 274 issued to Buell on June 22, 1993; U.S. Patent No. 5,554,145 entitled "Absorbent Article With Extendable Waist Feature Of Film Weave In The Form Of Elastic Multiple-Zone Structure" Which Was Issued To Roe and oíros on September 10, 1996; U.S. Patent No. 5,569,234 entitled "Stretchless Underpants" which was issued to Buell et al. on October 29, 1996; U.S. Patent No. 5,580.41 entitled "Null waste method for manufacturing side panels for absorbent articles" which was issued to Nease et al. on December 3, 1996; and the patent application of the United States of America No. of Sene 08 / 915,471 entitled "Absorbing article with extensible side panels in multiple directions" filed on August 20, 1997 in the name of Robles et al .; each of which are incorporated by reference herein. The backsheet 26 is generally that part of the diaper 20 positioned adjacent the garment-facing surface 45 of the absorbent core 28, which prevents the exudates absorbed and contained therein from staining. the articles that can make contact with the diaper 20, such as sheets and undergarments. In preferred embodiments, the backsheet 26 is impervious to liquids (eg, urine) and comprises a thin plastic film such as a thermoplastic film having a thickness of about 0.012 mm to about 0.051 mm. Suitable backsheet films include those manufactured by Tredegar Industries inc. of Terre Haute, IN and sold under loc. Commercial names X1530 &, X10962 and X10964. Other suitable materials of the back sheet may include ios • breathable materials which allow vapors to escape from the diaper 20 pieces that prevent exudates from passing through the back sheet. Illustrative materials can include materials such as woven, woven, non-woven wefts. , composite materials such as nonwoven webs, film coated, and microporous films such as are manufactured by Mitsui Toatsu Co., of Japan under the designation ESPOIR NO and by EXXON Chemical Co., of Bay City, TX, under the designation EXXAIRE. Suitable breathable composites comprising polymer blends are available from Clopay Corporatiop? Cincinnati, OH under the name HYTREL mixes P18-3097. These respirable composites are described in greater detail in PCT Application No. WO 95/16746, published June 22, 1995 in the name of E.l. DuPont and in co-pending United States patent application Serial No. 08 / 744,487 filed on November 6, 1996 on behalf of Curro Other respirabie backsheets including non-woven webs and apertured films are described in U.S. Patent No. 5,571,096 issued to Dobrin et al. On November 5, 1996. Each of these references is hereby incorporated by reference here. The backsheet 26, or any portion thereof, may be elastically extensible in one or more directions. In a modality, to later sheet 26 may comprise a film web in the form of structural elastic ("SELF"). A film web in the form of a structural elastic is an extensible material exhibiting an elastic behavior in the direction of elongation without the use of additional elastic materials. The SELF frame includes a deformable network having at least two contiguous, distinct and different regions. Preferably, one of the regions is configured in such a way that it will exhibit resistance forces sn response to an applied axial elongation. in a direction parallel to a predetermined axis before a substantial portion of the other region develops significant resistance forces to the applied elongation. At least one of Sa regions'. Fill a surface path length that is greater than that of the other region as measured substantially parallel to the predetermined axis while the material! It is in a non-stressed condition. The region exhibiting the greater surface path length includes one or more deformations that extend beyond! plane of the other region. The SELF screen exhibits at least two stages of controlled resistance forces significantly different from the elongation at or along at least one predetermined axis when subjected to an elongation applied in a direction parallel to the predetermined axis. The SELF plot exhibits first resistance forces to the applied elongation until e! The elongation of the weft is sufficient to cause a substantial portion of the region having the largest surface length to enter the plane of the applied elongation, after which the SELF frame exhibits second additional elongation resistance forces. The total forces of resistance to elongation are greater than the first forces of resistance to elongation provided by the first region. SELF webs suitable for the present invention are more fully described in U.S. Patent No. 5,518,801 entitled "Weft Materials Exhibiting Elastic Behavior," which was issued to Chappell, and others on 21 May 1996, which is incorporated herein by reference. In the alternate embodiments, the backsheet 26 may comprise elastomeric films, foams, filaments, or combinations of these or other suitable materials with non-woven materials or synthetic films The backsheet 25 can be bonded to H top sheet 24, a. absorbent core 28 or any other element of diaper 20 by any means of attachment known in the art. For example, the fixation means may include a continuous uniform adhesive layer, a layer of adhesive with pailon, or separate layers of coats, coils or adhesive. Ur preferred fixation measurement) comprises a flamingo network of adhesive -Je open pattern ..-. Erpc is disclosed in the patent of the States? No. 4,673,986, entitled "Sale of food for the containment of waste", which was issued to Mmetoia and others on March 1986. Other suitable fixing means include various lines of adhesive filaments which are spun. in a spiral pattern, as illustrated by the apparatus and methods shown in U.S. Patent No. 3,911, 173 'issued to Sprag? e, Jr. on October 7, 1975; United States patent Ho. 4J85,996 issued to Ziecker, and others on November 22, 1978; and in U.S. Patent No. 4,842,666 issued to Werenicz on June 27, 1989. Each of these patents is incorporated herein by reference. The adhesives that have been found to be satisfactory are given by H.B. Alternatively, the fixing means may comprise heat bonds, pressure joints, ultrasonic joints, mechanical dynamic joints, or any other means suitable fixation or combinations of these fixation means as are known in the art. The topsheet 24 is preferably positioned adjacent the body surface 47 of the absorbent core 28 and may be attached to it and / or to the backsheet 26 by any means of attachment known in the art. Suitable fixation means were described above with respect to the means for attaching the backsheet 26 to other elements of! diaper 20. In a preferred embodiment of the present invention, the topsheet 24 and the backsheet 26 are directly bonded together at some sites and are indirectly joined together at other sites by attaching directly to other elements of the diaper 20. The sheet upper 24 is preferably docile, gentle in feel, and non-irritating to the wearer's skin. In addition, at least a portion of the top sheet 24 is permeable to the liquid, allowing liquids to easily penetrate through its core. A suitable top sheet 24 can be manufactured from a wide range of materials, such as porous foams; reticulated foams; plastic films with openings; or woven or nonwoven webs of natural fibers (eg, wood or cotton fibers), synthetic fibers (e.g., polyester or polypropylene fibers), or. a combination of natural and synthetic fibers. If the absorbent assemblies include fibers, the fibers may be spun bonded, carded, wet-laid, melt-blown, hydroentangled, or otherwise processed as is known in the art. A suitable top sheet 24 comprising a polypropylene fiber web of cut length is manufactured by Veratec, Inc., a division ofI ternaiionaí Paper Company of Walpole, Massachusetts under the designation P-8. Suitable top sheets of formed film are described in U.S. Patent No. 3,929,135, entitled "Absorption structures having tapered capillaries", which was issued to Thompson on December 30, 1975, United States Patent. No. 4,324,246 entitled "Disposable absorbent article having a stain resistant top sheet", which was issued to Mullane, et al. On April 13, 1982; U.S. Patent No. 4,342,314 entitled "Resilient plastic weft exhibiting properties in the form of fibers" which was issued to Radel. and others on August 3, 1982; United States Patent No. 4,463,045 entitled "Macroscopically expanded three-dimensional plastic weft that exhibits a non-glossy visible surface and a fabric-like impression to the touch", which was issued to Ahr, and others on July 31, 1984; and in U.S. Patent No. 5,006,394"Multilayer Polymer Film" issued to Baird on April 9, 1991. Other suitable top sheets 30 are made in accordance with the patents of the United States.

United States Nos. 4,609,518 and 4,629,643 which were issued to Curro et al. On September 2, 1986 and December 6, 1986, respectively, and both of which are incorporated herein by reference. These are formed by The P'octer. & Gamble Company of Cinc.nnati, Ohio, as ORI-WEAVF "and by Tredegar Corporation of Terre Haute, Indiana as" CLIFF-1"" Preferably, the topsheet 24 is made of a hydrophobic material or is treated to be hydrophobic to In order to isolate the user's skin from the liquids contained in the absorbent core 28. If the top sheet 24 is made of a hydrophobic material. preferably at least the top surface of the topsheet 24 is treated to be hydrophilic in such a way that it will transfer the liquids through the top sheet more quickly. This decreases the likelihood that the exudates will flow out of the topsheet 24 instead of being drawn through the topsheet 24 and be absorbed by the absorbent core 28. The topsheet 24 can be made hydrophilic by treating it with a surfactant or incorporating a surfactant into the upper sheet. Suitable methods for treating the topsheet 24 with a surfactant include atomizing the material of the topsheet 24 with the surfactant and immersing the material in the surfactant. A more detailed discussion of this treatment and the hydrophilic capacity is contained in U.S. Patent No. 4,988,344 entitled "Absorbent articles with multi-layer absorbent layers" issued to Reising, et al. On January 29, 1991 and in the patent. No. 4,988,345 entitled "Absorbent articles with fast-absorbing absorbent cores" issued to Reising on January 29, 1991. A more detailed discussion of some suitable methods for incorporating the surfactant into the top sheet can be found in US Pat. Compulsory registration of invention of the United States No. H1670, published on lo. July 1997 in the name of Aziz and others. Each of these references is hereby incorporated by reference. Alternatively, the top sheet 24 may include an apertured film or film that is hydrophobic. This can be achieved by eliminating the hydrophilization treatment step. of the production process and / or application of a hydrophobic treatment to the top sheet, such as a polytetrafluoroethylene compound such as SCOTCMGUARD "or a hydrophobic lotion composition, as described below In these embodiments it is preferred that the openings be sufficiently large to allow the penetration of aqueous fluids such as urine without significant resistance. Any portion of the topsheet 24 may be coated with a lotion as is known in the art Examples of suitable lotions include those described in the US patent. United States No. 5,607,760 entitled "Disposable absorbent article having a top sheet with lotion containing an emollient and a polyol polyester immobilizing agent" which was issued to Roe on March 4, 1997; U.S. Patent No. 5,609,587 entitled "Diaper having a topsheet with lotion comprising a polyester polyol emollient and an immobilizing agent" which was issued to Roe on March 11, 1997; patent of the States No. 5,635,191 entitled "Diaper having an upper sheet with lotion containing a polysiloxane emollient" which was issued to Roe on June 3, 1997, and in United States Patent No. 5,643,588 entitled "Diaper having a upper leaf with lotion "which was issued to Roe and others the 1st. July 1997. The lotion may work alone or in combination with another agent such as the hydrophilization treatment described above. The topsheet may also include or be treated with antibacterial agents, some examples of which are disclosed in PCT Publication No. WO 95/24173 entitled "Amphibole-containing absorbent agent articles" on the top sheet for odor control which was published on behalf of Johnson on September 14, 1995. In addition, top sheet 24, back sheet 26 or any portion of the top sheet or the back sheet may be finished in highlight and / or dull to provide an appearance The absorbent core 28 may comprise: any absorbent material that is generally capable of compressing, capable of constituting, non-irritating to the skin, cell and layer, of absorbing and re-absorbing liquids such as opna Other certain body exudates The absorbent core 28 can be manufactured in a wide , 'fit of sizes and shapes (for example, rectangular, df- hourglass, e- \ form "of" T ", asymmetric, etc.) and can comprise a wide variety of liquid absorbent materials commonly used in disposable diapers and other absorbent articles such as crushed wood pulp, which is generally referred to as air felt. Examples of other suitable absorbent materials include crushed cellulose wadding; blown polymers in the molten state, including coform; chemically hardened, modified or crosslinked cellulosic fibers, tissue, including tissue envelopes and tissue laminates; absorbent foams; absorbent sponges; superabsorbent polymers; absorbent materials of geiication; or any other matter! known absorbent or combinations of materials.

The configuration and construction of the absorbent core 28 may also be varied (eg, the core or absorbent cores or other absorbent structure or structures may have zones with variable gauge, a hydrophilic gradient, a superabsorbent gradient, or acquisition zones with lower average density and lower average basis weight, or may comprise one or more layers or structures, however, the total absorbent capacity of the absorbent core 28 must be compatible with the design load and intended use of the diaper 20. Illustrative absorbent structures for use as Absorbent assemblies are described in U.S. Patent No. 4,610,678 entitled "High Density Absorbing Structures" issued to Weisman et al. on September 9, 1986; U.S. Patent No. 4,673,402 entitled "Absorbent Articles with Layered Cores. doubles "issued to Weisman and others on June 16, 1987; United States patent No. 4,834,735 entitled "High Density Absorbing Members That Acquire Acquisition Zones with Lower Density and Lower Weight" issued to Alerpany and other May 30, 1989; United States patent No • 4,888,231 entitled "Absorbent core having a disintegrating layer" issued to Angstadt on December 19, 1989; U.S. Patent No. 5,137,537 entitled "Absorbent structure having individual wood pulp cellulose fibers crosslinked with polycarboxylic acid" which was issued to Herron et al. on August 11, 1992; and in the United States patent No. 5,147,345 entitled "Absorbent Articles with High Efficiency for Incontinence Management" * issued to Young et al. On September 15, 1992, U.S. Patent No. 5,342,338 entitled "Disposable Absorbent Item for Low Viscosity Thermal Material" issued <to Roe on August 30, 1994; U.S. Patent No. 5,260.34 'entitled "Absorbent foam materials for aqueous body fluids and article" absorbers containing these materials "issued to DesMa'air" and others on November 9, 1993; No. 5,387,207 entitled "Thin absorbing foam materials until they are wetted for aqueous body fluids and the process for making them" issued to Dyer et al. on February 7, 1995; United States of America No. 5,625,222 entitled "Absorbent foam materials for aqueous fluids made from high internal phase emulsions having high water-to-oil ratios" issued to DesMarais et al. On July 22, 1997. Each of these patents are incorporated herein by reference.The diaper 20 may also comprise at least one elastic waist feature 34 that helps provide improved fit and containment. Elastic waist measurement 34 is generally intended to expand and contract elastically to dynamically adjust to the waist of the user. The elastic waist feature 34 preferably extends ai mer < You, ong? tudina! rpente towards .-. out from at least one waist belt 62! absorbent core 28- and form yenfirally by at least a portion of the end edge 52 of the cloth 20. The disposable blades are frequently constructed to have two elastic waist characteristics, one placed in the first waist region 36 and one placed in the second waist region 38. In addition, although the elastic waist feature 34 or any of its constituent elements may comprise one or more separate elements attached to the diaper 20, the elastic waist feature 34 may be constructed as an extension of other elements of the diaper 20, such as the backsheet 26, the topsheet 24, or both of the backsheet 26 and the top sheet 24. The elastic waist feature 34 may be constructed in a number of different configurations including those described in U.S. Patent No. 4,515,595 issued to Kievit et al. on May 7, 1985; U.S. Patent No. 4,710,189 issued Lash on December 1, 1987; paten-e v «-from the United States No. 5,151, 092 issued to Buell on September 9, 1992; and in United States Patent No. 5,221, 274 issued to Buell on June 22, 1993.

Other suitable waist configurations may include waist covering features such as those described in U.S. Patent No. 5,026,364 issued to Robertson on June 25, 1991 and in U.S. Patent No. 4,816,025 issued to Foreman on March 28, 1989. All of the aforementioned references are incorporated herein by reference. The diaper 20 may also include a fastening system 40. The fastening system 40 preferably maintains the first waist region 36 and a second waist region 38 in a lapped configuration to provide lateral tension around the circumference of the diaper. 20 to retain the diaper 20 on the wearer.

The fastening system 40 preferably comprises tape tabs and / or ganzno and pzo grab components, although other known fastening means are generally acceptable. Some of the illustrative fastening systems are disclosed in US Pat. No. 3,848,594 entitled "Disposable diaper tape fastening system" issued to Buell et al. November 19, 1974; U.S. Patent No. B1 4,662,875 entitled "Absorbing Article" issued to Hirotsu et al. on May 5, 1987; U.S. Patent No. 4,846,815 entitled "Disposable diaper having an improved fastening device" issued to Scripps on July 11, 1989; U.S. Patent No. 4,894,060 entitled "Disposable cloth with improved hook fastener portion" issued to Nestegard on January 16, 1990; U.S. Patent No. 4,946,527 entitled "Pressure-sensitive adhesive fastener and method for making the same" issued to Battreli on August 7, 1990; and in the above-referenced U.S. Patent No. 5,151,092 issued to Buell on September 9, 1992; and in United States Patent No. 5,221, 274 issued to Buell on June 22, 1993. The fastening system may also provide a means to maintain the article in a disposal configuration as described in U.S. Patent No. 4,963,140 issued to Robertson et al. On October 16, 1990 Each of these patents are incorporated herein by reference. In alternative embodiments, opposite sides of the garment may be sewn or welded to form a pant. This allows e! item is used as a diaper of stretching type, such as a training pant. The diaper 20 may also comprise side panels 30. The side panels 30 may be elastic or extensible to provide a comfortable and contour fit initially initially comfortable fitting diaper 20 to the user and holding this adjustment throughout the time of use even after that the diaper 20 has been loaded with the exudates since the elasticized side panels 30 allow the sides of the cloth! 20 expand and contract. The side panels 30 can also promote a more effective application of the diaper 20 because. tpc'ujc if 'a person who places the year pulls a pane! Lateral eSastif: cadc 30 rná'- lefcs ^ that the other during the application, the p-.vial 20"auto-adjust" during e! use. Although the diaper 20 of the present invention preferably has the side panels 30 disposed in the second waist region 38, the cloth can be provided! 20 with side panels 30 arranged in a first waist region 36 or both of the first waist region 36 and the second waist region 38. The side panels 30 can be constructed in any of the appropriate configurations. Examples of diapers with elasticized side panels are disclosed in United States Patent No. 4,857,0678, entitled "Disposable diaper having straightened ears" issued to Wood, et al. On August 15, 1989; United States Patent No. 4,381, 781 issued to Sciaraffa, and others on May 3, 1983; U.S. Patent No. 4,938,753 issued to Van Gompel, and others on July 3, 1990; the hereinabove referred to United States Patent No. 5,151,092 issued to Buell on September 9, 1992; and in United States Patent No. 5,221, 274 issued to Buell on June 22, 1993, United States Patent No. 5,669,897 issued to LaVon, and others on September 23, 1997 entitled "Absorbent articles that provide a sustained dynamic adjustment "; U.S. Patent Application Serial No. 08 / 155,048 entitled "Absorbent Article with Extendable Side Panels in Multiple Directions" filed on November 19, 1993 in the name of Robles, et al .; each of which are incorporated herein by reference. AND! diaper 20 preferably also includes leg cuffs 32 that provide improved fluid containment and other body exudates. Leg bends can also be referred to as leg bands, side flaps, barrier folds, or elastic bungees. The patented United States Nc. 3,860,003 discloses a disposable diaper that provides a collapsible opening for the leg having a side flap and one with more elastic members to provide a leg elasticized (a fold of ompaquetaduta). U.S. Patent Nos. 4,308, 178 and 4,909,803 issued to Aziz and others on February 28, 1983 and December 20, 1990, respectively, describe diapers ds? Echabies cji. have fins, elasticized "upright" (barrier folds) that improve the containment of leg regions. U.S. Patent Nos. 4,695 278 and 4,795,454 issued to Law on September 22, 1987 and Dragoo on September 3, 1987. In 1989, respectively, they describe disposable diapers that have double folds, including packing folds and barrier folds. In some embodiments, it may be desirable to treat all or a portion of the leg folds with a lotion, as described above. The embodiments of the absorbent article of the present invention may also include cavities or pockets to receive and contain separating debris that provide voids for waste, barriers to imitate the movement of waste within the article, compartments or voids that accept and contain waste materials. waste deposited in the diaper, and the like, or any of the combinations thereof. Examples of cavities or pouches and separators for use in absorbent products are described in U.S. Patent No. 5,514,121 issued to Roe et al. On May 7, 1996, entitled "Diaper having an expulsion separator"; U.S. Patent No. 5,171,236 issued to Dreier et al. on December 15, 1992, entitled "Disposable absorbent article having core spacers"; U.S. Patent No. 5,397,318 issued to Dreier on March 1, 1995, entitled "Absorbent Article Having a Pocket or Bag Fold"; U.S. Patent No. 5,540,671 issued to Dreier on July 30, 1996, entitled "Absorbing article having a cavity fold with an apex"; and PCT sc. WO 93/25172 published December 3, 1993, entitled "Separators for use in hygienic absorbent articles and disposable absorbent articles having said separator"; and e.i U.S. Patent No. 5,306,266 entitled fci. "Flexible separators for use in disposable absorbent articles" issued to Froeland on April 26, 1994. Examples of compartments or voids are disclosed in U.S. Patent No. 4,968,312, entitled "Disposable diaper with fecal compartment", issued to Khan on November 6, 990; U.S. Patent No. 4,990,147, entitled "Absorbent Article with Elastic Lining to 0 Isolation of Waste Material", issued to Free'and on February 5, 1991, U.S. Patent No. 5,62,840, entitled "Disposable Parallels" issued to Holt et al. on November 5, 1991, and in U.S. Patent No. 5,269,755 entitled "upper sheets of three sections for disposable absorbent articles and disposable absorbent articles having these upper sheets of 5 three sections", issued to Freeland et al. on December 14, 1993. Examples of suitable transverse barriers are described in U.S. Patent No. 5,554,142 entitled "Absorbent article having pa multiple cross section of effective height "issued on September 10, 1996 in the name of Dreier et al .; PCT patent WO 94/14395 entitled "Absorbent article having an upright transverse partition" published July 7, 1994 in the name of Freeland, et al., and in United States Patent No. 5,653,703"Absorbent article having a partition angular cross section ", issued on August 5, 1997 to Roe, and others. In the preferred embodiments of the present invention, the absorbent article 20 includes a directionally preferential waste passage member 60 or "waste passage member" 60. The waste passage member 60 is intended to assist in reducing the amount of faeces, urine and other body wastes discharged by a user which come into contact with or contaminate the user's skin. Contact and contamination of the foot! reduced results from the body exudates passing through the waste passage member 60 away from > the skin. The waste passage member then acts as a bairn for the waste to pass back through its thickness towards the user. Specifically, the waste passage member 60 preferably has a surface that faces the body 62 and a surface that gives the opposite garment 64. At least a portion of the body-facing surface 62 includes one or more soluble materials 66 that are capable of being dissolved by substances commonly found in human or mammalian body waste. Preferably, the water-soluble substances comprised in the body-facing surface 62 are capable initially of providing the structural integrity of the waste passage member 60. Upon excretion, the body waste dissolves a portion of the waste passage member 60. thus eliminating the structural integrity of at least a portion of! waste passage member 60, preferably in the region of the contact between the waste and the waste passage member 60, allowing passage of the waste. Various properties of body discharges can trigger or initiate the dissolution of material 66, including but not limited to, moisture, pH, enzymes, temperature, pressure, chemicals (e.g., salts, proteins) and the like. The dissolution of the waste passage member 60 allows the body exudates to pass through the thickness of the waste passage member in a direction away from the foot! of the user. In addition, at least a portion of the surface that gives the garment 64 of! Waste passage member 60 preferably includes a barrier material 70 that resists wetting and / or penetration by body exudates. Therefore, once the exudates have passed through the waste passage member? 0. these are kept away from the skin of the user by the strength properties of the barrier matepal 70 in at least the portion of the member of <- waste stream 60 not initially dissolved by waste The waste passage member 60 may copied, ender any suitable absorbent material or absorbent or non-absorbent materials and may take any number of configurations. For example, any portion of! Waste passage member 60 may include a film, a weft, a canvas, a mesh, a foam, a laminate of these or other structures, and the like. In one embodiment, at least a portion of the waste passage member 60 includes only the soluble material 66. In another embodiment, the waste passage member 60 includes insoluble elements such as fibers, filaments, or the like, which are held together by the matter! 66. (As used herein, the term "insoluble" refers to materials that do not dissolve when contacted by body waste or other material that is intended to dissolve the soluble member to waste. 66) In these modalities , the dissolution of the soluble material 66 allows the structure of the waste passage member 60 to disintegrate (ie, the insoluble elements are no longer held together by the soluble material 66). In still other embodiments, the waste passage member 60 includes a crosslinked insoluble member 86, an example of which is shown in Figure 7. (As used herein, "crosslinked" materials refer to any of the materials that include interstices, openings, holes or spaces extending through the thickness of the material in any repeated or non-repeating pattern. The interstices are not limited to any particular size or shape.) The cross-linked insulating member 86 includes interstices 88 or openings through which body waste can pass. In the present invention, at least some of the interstices 88 preferably have a soluble material 66 disposed therein. Therefore, when material waste is exposed to the body! Soluble 66 disposed within the interstices 88 dissolves and opens the interstices 86 for the passage of! body wastes Some or all of the interstices 88 may also include a substance resistant to wastage 68 to prevent body waste from passing through the interstices to the skin of the body. user. Reticulated structures suitable for use with the soluble material 66 include apertured films, canvases, non-woven and woven wefts, foams, and the like. In any embodiment, the material or materials 66 can be readily accessible to the exudates deposited on the surface that faces the body 62 of the waste passage member 60. Suitable water-soluble materials include, but are not limited to, alcohol. "Inyl, cellulose materials, starches, polyvinylaniline, polyacrylamide, alginates, water-soluble alkyd compositions, and derivatives of coughs. Some examples of suitable polyvinyl alcohol films are available from Hoechst AG, Frankfurt, Germany, under the trade names of "ALCAM" and "AQUAFILM". In preferred embodiments, the film may be between about 0.001 and about 0.5 mm thick and is preferably about 0.05 and about 0.08 mm thick. However, any part of the waste passage member 60 may have a different thickness and / or composition to provide the desired properties including, but not limited to strength, breathability, opacity and dissolution rate. The soluble material 66 described above can optionally be sensitive to pH. As used herein, the term "pH sensitive" refers to materials that are insoluble in certain ranges of pH, but soluble in another. As such, the soluble material 66 may have a pH threshold. The "pH threshold" of a soluble material is the pH at which the material changes from soluble to insoluble or vice versa. For example, the soluble material 66 can be substantially soluble at pH less than 6 but soluble at a higher pH 6. In this way, the pH threshold of that material is a pH of 6. In the preferred embodiments of the present invention, the The pH threshold of the soluble material is preferably between about 5 and about 9, and preferably between about 5.5 and about 8.5, although others are contemplated. pH thresholds. The change in pH may be the cause or action for the dissociation. of the soluble material 66, c this can also be used to help increase or decrease the dissolution rate of the waste passage member 60. Therefore, the operation of the waste passage member 60 can be varied depending on factors such as the type and amount of waste deposited on the item. Soluble, pH sensitive, illustrative materials are known in the art and include but are not limited to, polyacrylamides, derivatives of phthalate, formalized gelatin, shellac, keratin, cellulose derivatives, (e.g., oxidized cellulose), and derivatives of polyacrylic acid. Other preferred soluble pH sensitive materials include cellulose acetate phthalate, vinyl acetate, polyvinyl acetate phthalate, hydroxypropyl methyl cellulose phthalate, and polymethacrylate mixed with acrylic acid and acrylic ester copolymers. Still other soluble materials, sensitive to pH, are described in European publication EP 612520 A2 entitled "pH-driven osmotic discharge delivery device", the disclosure of which is incorporated herein by reference. An exemplary pH soluble film can be produced by applying to a surface a thin layer of an acetone solution of about 4.8% by weight of polymethyl methacrylate (PMMA) such as "V920" (available from Rohm Haas Co., of Philadelphia, PA) and 19.0% by weight of "EUDRAGIT S-100" (a pH-sensitive material available from Creanova, Inc. of Somerset, NJ), dry the solution until it forms a film and remove the film from the surface . Of course, the ratio of EUDRAGIT S-100 to PMMA V920 can be varied, for example, from about 95: 5 to about 40:60 or as desired. It is believed that this film has a pH threshold of about 6.5 to 7.5, above what it is! the film is soluble in water and below which the film is substantially insoluble. An alternative pH sensitive film can be produced using an acetone solution comprising about 1.8% by weight of cellulose acetate such as 398-10 available from Eastman Chemical Co. of Kingsport, TN and about 4.2% by weight of acetate phthalate. of cellulose such as CD-910 available from FMC Corp. of Chicago,! L. This film is believed to have a pH threshold of approximately pH from 6.0 to about 7.0. As noted above, the ratios of the ingredients of the composition can be varied as desired, but preferably are between about 95: 5 to about 40:60. The soluble material 66 can also be sensitive to the salt concentration (eg, more soluble around either the high or low ionic strengths.) As such, the soluble material 66 can have a salt concentration threshold (i.e. ionic) The "salt concentration threshold" of a soluble material is the concentration of salt at which the material changes from soluble to insoluble or vice versa For example, in preferred embodiments soluble material 66 may be substantially insoluble in water distilled (ie the salt concentration is essentially zero), but soluble in salt-containing water, therefore, the threshold of the salt concentration of that material is above zero.The illustrative materials with this type of sensitivity of solubility at the salt concentration include polyvinyl alcohol materials such as those described in U.S. Pat. Nos. 4,258,849 and 4,245,744, both incorporated herein by reference. Alternatively, the soluble material 66 can be soluble in distilled water, but insoluble in the presence of water containing ions. Illustrative materials with alternative dependence on salt concentration include crown ethers available from Fluka of Buchs, Switzerland such as Benzo 15-Crown-5 (Catalog No. 12335), Benzo 15-Crown-6 (Catalog No. 12338), 15-Crown-5 (Catalog No. 28123), and 15-Crown-6 (Catalog No. 28125). Preferably, these crown ethers are entangled to allow the formation of a crystalline base film. The change in the concentration of sa! I could be the cause or the drive for the dissolution of matter! soluble 66 or this one íamb? ér. can be • unified to help increase or decrease the rate of dissolution of waste passage member 60. In this way, the functioning of the member of. Waste passage 60 can be varied depending on factors such as the type and amount of waste deposited on the article. Soluble material 66 can also be temperature sensitive (eg, more soluble at either low or high temperatures). As such, a soluble material 66 may have a temperature threshold. The "temperature threshold" of a soluble material is the temperature at which the material changes from insoluble (or a solid) to soluble (or at least partially liquid) or vice versa. For example, in preferred embodiments the soluble material 66 can be substantially soluble (ie, solid) in cold water (eg, below 35 ° C), but soluble (ie, at least partially liquid) in hot water . Therefore, the temperature threshold of that material is 35 ° C. Illustrative materials that undergo a transition from solid to liquid with the temperature increase include waxes, gelatin and pectins. Alternatively, the soluble material 66 can be soluble in cold water, but insoluble at warmer temperatures. Illustrative materials with this alternative dependence on temperature include NIPAM (n-isopropylacrylamide), available from Jarchem Industries of Newark, NJ: The change in temperature may be the cause or the driver for the dissolution of the soluble material 66, or it may also be used to help increase or decrease the rate of dissolution of the waste passage member. In this way, the operation of the waste passage member 60 can be varied depending on factors such as the lipo and amount of waste deposited on the article. In an alternative embodiment, the dissolution of the soluble material 66 can be triggered by the enzyme activity. For example, an enzyme present in the article can effect a pH change in combination with the hydrolysis of! Coconut body waste instead promotes dissolution of soluble member 66 (eg, a mixture of urease and urea releases ammonia resulting in an increase of μH) Alternatively, as shown in Figure 4, a hydrolysis substrate 84 capable of Hydrolyzed by the fecal enzymes may be disposed on or adjt to the surfthat f the body 62 of the waste passage member 60. When the fecal enzymes hydrolyze the hydrolysis substrate 84, a pH change results which can drive the dissolution of matter! soluble 66. Suitable hydrolysis substrates include keratin, collagen, starch, and triglycerides, urea and other known substrates for enzymes commonly found in faeces. Enzymes found in body waste that can effect pH change in the waste or when contacted with the hydrolysis substrate 84 disposed on the waste passage member 60 include, but are limited to, proteases, lipases, ureases and similar. In other embodiments, the activity of the enzyme can effect other chemical or mechanical changes in any portion of the waste passage member 60 so that the waste passage member 60 can allow the passage of body waste. In any case, e! The pH change resulting from the enzyme activity can not only drive the solution, but also help to increase or decrease the rate of dissolution of the waste passage member 60. In still another embodiment, the passage member of waste 60 can comprise a degradable material with enzyme 82 which provides structural integrity to waste passage member 60 until it is hydrolyzed by an enzyme present in the body waste. For example, at least a portion of the waste passage member 60 may comprise a collagen or binder film (or both proteinus material) that provides structural integrity to the waste passage member 60. When hydrolyzed by the proteases found on fecal eses, such as trypsin, chymotnpsin and the like, the structure of the degradable substance with the enzyme 82 loses its integrity and thus allows the passage of body waste in at least one direction away from the user's skin. At least a portion of the garment-facing surf64 of the waste passage member 60 preferably also includes a bath material 70. As distinguished by forethought, the barrier material 70 is intended to prevent body waste that has passed through the waste passage member 60 move back through the waste passage member 60 and contaminate the foot! of the user. Therefore, the barrier member 70 can include any material or materials that resist, repel or completely block the passage of body waste to the wearer's skin. The material or barrier materials 70 may be disposed on all or any portion of the garment surf64 of the waste passage member 60. In addition, the barrier material or materials 70 may be incorporated in the waste passage member 60 or may be added separately to any other portion of the waste passage member 60. Some non-limiting examples of the barrier materials include silicone oils or silicone waxes, coatings of polyterefluoroethylene, waxes and oil-based oils such as petroleum, silicone polymers, and the like. These barrier materials may be provided by any known means in the form of liquid, solid, or semi-solid oils, waxes, powders, fibers and the like, or in any other structures or substances capable of providing the barrier properties. Examples of suitable barrier materials include silicon oils that are available from Dow Coming, Midland, Ml, under any commercial designations # 200, # 749, and / ÍV'01 and Dow Corning silicone waxes such as # 2503. Additional suitable sweeteners include any of the compositions for the care of pioi or its ingredients, described below. The level of coating of these silicone oils has been found to be suitable within the range of 0 0 1 to 1 g / cm 2. For example, a # 1401 Dow Corning oil can be applied to a surface of a PVA film at an added level of 0.06 g / cm2, and then allowed to air dry for three days to form an adequate barrier. In addition to the barrier material or materials 70, the waste passage member 60 may include one or more body adhesion compositions 80 that act to retain the waste passage member 60 adjacent to the user's skin. These body adhesion compositions 80 may be integral with the material forming the waste passage member 60 or may be separate materials arranged directly or indirectly on all or any portion of the waste passage member 60. In a preferred embodiment, as shown in Figure 5 , the body adhesion composition 80 is disposed on a portion of the surface facing the body 62 of the waste passage member 60. In the especially preferred embodiments, the body adhesion composition 80 is disposed adjacent to at least one portion of the peripheral edge 85 of the waste passage member 60. However, modalities are contemplated where the composition The adhesion to the body 80 is located away from the peripheral edges 85. The body adhesion composition 80 may be disposed on the waste passage member 60 in any pattern or configuration including, but not limited to, lines, strips, dots and The body adhesion composition 80 can include any one or more substances capable of releasably adhering to the wearer's skin. In addition, the body adhesion composition 80 may be in the form of a gel, lotion, film, weft or the like. Examples of suitable body-adhesion compositions include adhesives, gelatin, petrolatum, waxes such as silicone or petroleum waxes, oils such as silicone or petroleum-based oils, foot care compositions! or ingredients thereof, as described below and the like, suitable adhesives include, but are not limited to, hydrogel or hydrocolloid adhesives such as acrylic-based polymer adhesives, and the like. (Some illustrative hydrogel and / or hydrocolloid adhesives are disclosed in United States Patent Nos. 4,231,369, 4,593,053, 4,699,146, 4,738,257, and 5,726,250, each of which is hereby incorporated by reference). The adhesives may also include any "medical adhesive" that is compatible for use with the biological tissue, such as the skin. Medical acrylic adhesives suitable for use as the skin adherent compositions 80 include adhesives available from Adhesive Research, Inc., of Glen Rock, PA, under the designations MA-46, MA-312, "MTTM", high MVTR adhesive, and AS-17. Rubber-based medical adhesives, such as the Adhesive SB-2 Research Inc. may also be adequate. Other illustrative adhesives include the Dow Corning medical adhesive (Type B) available from Dow Corning, Midland, Ml., "MEDICAL ADHESIVE" from Hollister Inc., of Libertyville, IL; 3M adhesives Nos. 79, 76, 77 and -90 available from 3M Corp. of St. Paul, MN; and "MATISOL" liquid adhesive available from Ferndale Laboratories of Ferndale, Ml. Other medical adhesives are described in U.S. Patent Nos. 4,078,568; 4,140,155; 4,192,785; 4,393,080, 4,505,976; 4,551, 490; 4,768,503 and the polyacrylate and polymethacrylate hydrogel adhesives are described in U.S. Patent Nos. 5,614,586 and 5,674,275; the disclosure of each of which is incorporated herein by reference. Still another illustrative adhesive comprising polyvinyl pyrroiodone and a multifunctional amide containing polymer is disclosed in WO 94/13235A1. (The disclosure of each of these references is incorporated herein by reference). The alternative means of accession to! a., which can be used instead of or in addition to those described above, occluding static electricity, suction and the like. In any case, it is preferred that the composition adherent to the body 80 allow these vapors to pass (e. to say breathe "1 tea compatible with the skin and benevolent in the same way with skin id In the preferred modalities as described in European co-pending applications Nos. 97110730.5 and 97120336.9 (both of which are incorporated by reference here), the Removal of the adherent composition to the body of the skin is relatively painless.In these embodiments, the composition of body adhesive or body adherent has an elastic modulus at a temperature of 3 ° C abbreviated C37 and a viscous modulus at a temperature of 37 ° C of G "¿, - The adhesive also has a dynamic elastic behavior defined as? G'37 which is the difference of G'37 at a frequency of 100 rad / sec and of G'3 at a frequency of 1 rad / sec and a viscous dynamic behavior? G'37 which is the difference of G "37 at a frequency of 100 rad / sec and of G" 37 at a frequency of 1 rad / sec. In addition, the body adhesive preferably leaves the following conditions.

G'37 (1 rad / sec) is the range from about 1500 Pa to about 20,000 Pa, preferably from about 1500 Pa to about 15,000 Pa, most preferably from about 3000 Pa to about 10,000 Pa.

G "37 (1 rad / sec) is the range from about 100 Pa to about 15,000 Pa, preferably from about 100 Pa to about 10000 Pa, most preferably 300 Pa to about 5000 Pa. F F, 3 (1 rad / sec ). / G'V (1 rad / sec) is the interval from about 3 to about 30.

The ratio G'37 (100 rad / sec) - G "37 (100 rad / sec) 0 G'37 (1 rad / sec) - G"; (1 rad / sec) It is not less than about 0 5, preferably within! range of about 0.7 to 3, most preferably in the range of about 1 to 1 8.

Any of the ratio of? G'37 / G'37 (1 rad / sec) is not greater than about 1.5, preferably not greater than about 0.8, or? G'3 is not greater than about 10000 Pa, preferably less than 5000 Pa, most preferably less than 2000 Pa, or both. The value of the ratio G'37 / G "or 7 at least for the frequency range of about 1 rad / s to 100 rad / s should preferably be 3.3 or more, more preferably about 5 or more, most preferably about 10 or more. while not exceeding about 50, preferably about 30, in any part within the frequency range., To obtain the desired characteristics, the composition adhering to the cupola may comprise: from 0 to 20%, preferably from 5 to 15%, by weight of a substantial macromolecular polymer or a mixture of these substances soluble or able to swell in the plasticizer or plasticizers mentioned below. As non-limiting examples such macromolecular or polymeric substances may be nalural and / or synthetic such as natural gums or derivatives "such as natural gums and gelatins, their derivatives and alginates, polyacrylics, polyvinyl alcohol, polyethylene oxide, polyvinylpyrrolidone (PVP) or polyvinyethers , its copolymers and derivatives, cellulose derivatives, thermoplastic eiastomers of block copolymer and eetirene block copolymer preferably and most preferably the hydrogenated grades styrene / ethylene / butylene / styrene (SEBS), styrene / isoprene / styrene (SIS), and Styrene / ethylene-propylene / styrene (SEPS) In addition, preferred body adhesive compositions can comprise from 45 to 99.5% by weight, preferably from 51 to 99.5% by weight, of a plasticizer or a mixture of plasticizers, which are liquid at room temperature.As non-limiting examples, plasticizers can be water, various alcohol oles (as in particular glycerol), glycols and their ethers, polyglycols, liquid polybutenes, esters such as phthalates, adipates, stearates, palmiiaios. sebacatos, or miristalos, synthetic natural oils such as vegetable oils, mineral oils, or combinations thereof. In addition, the body adhesive may include from 0% to 50% by weight of the composition, preferably from 0% to 600% by weight of the polymeric macromolecular substance of a tackifier resin whose main scope is to make the Tg especially on topics based on synthetic polymers. Also, preferred body adhesives may include from 0 to 10% and more preferably from 0 to 5% by weight of substances to facilitate and "gel" the gel and the process of forming the rite of piastiizative. Hydrophilic or hydrophobic liquids, these can be for oily systems, for example, for C8 to C22, their metal salts and their polyoxo derivatives, derivatives of lanolin, silica, bentonite, montilonite and their nervados. pohainides, waxes or mixtures thereof Common additives known in the art as preservatives, antioxidants, anti-ultraviolet rays, pigments, mineral fillers, rheology modifiers and the like may also be comprised in amounts of up to 10% each. When chemical bonds are formed in the system, a binding agent may be present preferably in amounts of up to 5% by weight. Ei chemical entanglement may also be formed by neutr mutual alisation of polymers that have different functionalities as in the reaction between acidic polyacrylics and polysaccharides.

The skin care compositions that can be used in accordance with, with, or the place of adherenid compositions to the body include the Category I assets as defined by the U.S. Federal Food and Drug Administration (FDA) about Skin Protective Pharmaceutical Products for Sale and Human Use, which include acíuamelele, allantoïd, aluminum hydroxide gel, calamine, cocoa butter, dimethicone, cod liver oil (in combination), kaolin glycerin, petrolatum, lanolin, mineral oil, shark liver oil, white petrolatum, iron, topical starch, zinc acetate, zinc carbonate, zinc oxide and the like. Other potentially useful materials are Category III assets as defined by the U.S. Federal Food and Drug Administration on Skin Protective Pharmaceutical Productions for Sale and Human Use which include: derivatives of live priming cell, aldtoxa, aluminum tice, micrcporous cellulose, eoiecalcifero! colloidal oats, cysteine hydrochloride, dexpananol, balsam oil from Peru, hydrocyanates from raceme.it} ., sodium onate, vitamin A and the like. Many of the skin care ingredients cited in the FDA monograph are currently used in commercially available skin care products, such as Ointment A and D®, VASELINA® Jeily Pellelate, DESITIN® Diaper Urticaria Ointment and Ointment of Daily Care, Talc for Babies GOLD BOND® Medicated, AQUAPHOR® Crystallizing Ointment, Lotion. Infant BABY MAGIC®, Johnson's Children's Lotion, Cream for JOHNSON'S ULTRA SENSITIVE® babies, lip balms, etc. Other skin care compositions are described in detail in US Patent No. 5,643,588, US Patent No. 5,607,760, US Patent No. 5, 609, 587, and Patent. North American No.5,635.19. The descriptions of each one of these countries are incorporated in the présenle by reference.

The skin care compositions may also include (chemical faecal modification chemicals), pH control agents, enzyme inhibitors, antimicrobials, oior absorbing agents (such as cyclodextrins and activated charcoal), or animicocrobals. Examples of the enzyme inhibitors include proiease inhibitors (e.g., hexamidine derivatives), lipase inhibitors (e.g., eryaceine), urease inhibitors, and the like. Cillic acid is an example of a suitable proton donor pH control agent. In a preferred embodiment, a skin care composition comprising about 57% by weight of petrolatum, about 42% by weight of styryl alcohol, and about 1% by extract of aloe to an external 1 cm of the skin member is apiea. waste step 60 to an added level of approximately 5 mg / cm2. FIGS. 1 and 2 show a preterm embodiment of the present invention wherein the waste passage member 60 is permanently attached to an absorbent article, such as a diaper 20. Although the waste passage member 60 can be located If part is inside or on the diaper 20, it is preferably located such that at least a portion of the waste passage member 60 is disposed in the crotch region 37. It is also preferred that the waste passage member 60 be disposed such that at least a portion of the waste passage member 60 will be in intimate contact with the wearer's skin during use. Therefore,. the waste passage member 60 may be located adjacent the surface that faces the body 47 of the core 28. If the diaper 20 includes a top sheet, the waste passage member 60 is preferably located on top of, or toward outside, the upper sheet 24 and towards the body of the user. This configuration will ensure that the topsheet 24 does not interfere with the movement of the body waste through the waste passage member. 60. Alternatively, the waste passage member 60 may be insulated beneath the topsheet 24 or enwrap the topsheet and the core 28 or other underlining. In other embodiments, the waste passage member 60 may be an integral part of the topsheet 24 or any other part of the diaper, such as the folds, a transverse barrier, a cavity feature or the like. In any case, it may be preferable to configure the waste passage member 60 so that it is separated from the underlying structure of the diaper 20 by a gap and / or separation member or member. A recess 90, such as the recess shown in Figure 2, can increase the efficiency of the waste passage member 60, and thus the diaper 20, by providing a site where waste can be stored and / or immobilized away from the waste. the skin of the user. The recess 90 can be created by any known element or means including resilient or reclining members that accrete the waste passage member 60, or separation members. { including those mentioned above) that piopo.'cionan a structure that physically separates parts of the diaper 20. It may also be desirable to d leave- at least v < The portion of the waste passage member 60 is secured to an underlying structure of the diaper 20 in at least a portion of the crotch region 37. As noted above, the waste passage member 60 may be disposed at any part within diaper 20 and may be integral with or be attached to any portion thereof, as the sheet exceeds 24. In a preferred embodiment as shown in Figure 1, the waste passage member 60 is a separate element of the upper sheet 24 and is disposed outwardly of the upper sheet 24, towards the user's skin during use. The waste passage member 60 extends from the first cinching region 36, through the crotch region 37 to the second waist region 38. Preferably, the waste passage member 60 is attached around its peripheral edges 85, most preferably in at least one of the waist regions. As shown in Fig. 2, the waste passage member 60 may be attached to an underlying structure of the diaper 20 as the first cinientation region 36 and the second cinching region 38. In other embodiments, the passage member of waste 60 can form, be joined to, or be integral with, one or more of the leg barrier folds, a transverse barrier. 5 cavities for waste or any other element or structure of the diaper 20. In any case, it is preferred that the waste passage member 60 be disposed in such a way that at least a portion of the limb is located adjacent the urethra anus and / or vagina! user while wearing the diaper. If the waste passage member 60 is attached to any part of the box 20, it can be attached to the underlying structure of the diaper continuously or in an intent manner. In addition, the waste passage member 60 may be permanently attached or it may be attached by hand or detached by the same time! 20 The permanent permanent means of bonding confine, but do not limit c- adhesive heat, pressure, sound laser, eleciromíigoétic union, combinations of the -i? - same or any other known means of connection. Suitable disinfectable and resurfactable media include, but are not limited to, hook and loop eners, adhesives, clips, clips, magnetic bonds, electrostatic joints, and the like. The waste passage member 60 may change to comprise one or more openings, slots, grooves, perforations and / or weakened regions to assist penetration by the waste material. In addition, the dissolution rate of the soluble material 66 can be improved by reducing the strength or thickness of the material! soluble 66 or increasing its effective surface area (i.e., chopping, slagging, punching, or spreading) Other known mechanical and / or chemical modifications may be made to the waste passage member 60 to provide any other desired property, including but not limited Resistance, breathability, adhesion, penetration, feel and aesthetics It may also be desirable to provide some or all of the waste passage member 60 with elasticity or extension characteristics. For example, the waste passage member 60 may include elastics that collect (shorten) the waste passage member 60 and pull it close to the wearer's skin during use. The elastic material can provide elasticity at all times or only before or after certain mechanical or chemical inputs. For example, the waste passage member 60 may include water-activated heat-shrinkable elastic elements which collect or gather the waste passage member 60 after being subjected to heat or water, respectively. Thus, embodiments are contemplated wherein the waste passage member 60 lies flat along the topsheet 24 if present, the core 28 or other underlying structure until used or until the user excretes body waste on the body. which active a! elasíómero and shorten the miernbi: >; waste passage 60. Alternatively, the waste passage member 60 may also include an eiastomeric or extencible material or may be processed to provide similar styling characteristics. Suitable means for providing elastic stretch characteristics to non-elastic materials are described in the aforementioned U.S. Patent No. 5,518,801, which is incorporated by reference herein. In an alternative embodiment for the disposable absorbent article described herein, the waste passage member 60 can be a separate embodiment that can be used with or independent of the containment article such as a cloth, adult incontinence device, towel sanitary, diaper cover, or similar. As shown in Figures 3 and 5, the waste passage member 60 may comprise a simple material having a body surface 62 and a second garment 64. As described above, at least a portion of the surface of body 62 preferably includes a material wasted to body waste 66. That is, at least a portion of body surface 62 will dissolve when placed in contact with certain body wastes to allow waste to pass through the waste passage member. 60 away from the user's skin. With the above-described embodiments, by at least a portion of the garment surface 64, includes a barrier material 70 which will be used in the present invention. resists or prevents the movement of waste back through the waste passage member 60 towards the wearer's skin. If it is not integrated into an article such as a diaper, it is important that the waste passage member 60 has some means by which it maintains itself in close proximity to the user's body. Although known media, strips, strips, or other media may be used, it is preferred that the waste passage member 60 include a body adherent composition 80, as described above. The composition adhering to the body 80 can be disposed anywhere on the waste passage member 60. In the preferred embodiments, the composition adhering to the body 80 is selectively disposed on the body surface 62 to allow the Waste passage member 60 is adhered securely, a. body at the desired site (eg, around the anus and / or ureira) without substantially obscuring the solubility of the soluble material 66. The waste passage member 60 can be of any shape and / or size. In the preferred embodiments, as shown in Figures 3 and 5, the waste passage member 60 may be generally rectangular or generally in the form of an hourglass. However, you will hear forms including, but not limited to: circles, ovals, squares, íriápgulos y. Similar. Other more complex shapes allowing the waste passage member 60 to fit snugly to different parts of the body, such as the anus, urethra or vagina, are also contemplated. In a preferred embodiment, the waste passage member 60 is reclangular and has dimensions of approximately 10 cm x approximately 30 cm. The waste passage member 60 also includes another configuration or adjustment feature such as elastics, slits, three-dimensional configuration, and the like. In addition, the waste passage member 60 may include fasteners for attaching the waste passage member 60 to articles such as diapers, incontinence garments, undergarments and the like. These fasteners may include, but are not limited to, buttons, closures, cinias, hook and loop fasteners, pressure fasteners, buckles, and other fasteners. Although the particular embodiments of the present invention have been illustrated and described, it would be obvious to those skilled in the art that other changes and modifications can be made without departing from! espiriíu and scope the invention., Therefore it is intended to protect in the appended claims and these changes and modifications that are within the scope of this invention.

Claims (17)

1. * CLAIMS 1. An absorbent article having a first region of cinientation, a second region of opposite cinientation, a region of the crotch disposed between the first region of the waist and the second region of the waist, the absorbent article comprising: a backsheet material impervious to liquid; the absorbent article characterized in that the article includes a directionally preferential waste passage member having a surface that gives the body and a surface that gives the garment .syllable, by at least a portion of the ^) Surface that gives the body of the waste passage member directionally 7 < This includes a soluble material capable of dissolving when placed in contact with exudates from the body to allow exudates from the body to pass; through the directional waste passage member, in a first direction generally remote from the foot of the user, at least a portion of the surface i. GUIDES the garment to the waste passage member direcciopalmenta preference! including a barrier material that resists penetration of body exudates in a second direction generally opposite the first direction; the bsrre'a member activated by e! waste disposed in at least a portion of the crotch region of the absorbent article; and 0 an absorbent core disposed between the backsheet and the directionally preferential waste passage barrier member. The absorbent article according to claim 1, further including a top sheet disposed between at least one & portion of the directionally preferential waste passage member and at least a portion of the absorbent core. 3. The absorbent article according to any one of the preceding claims, further including a hollow located in the directionally preferred waste passage member and the absorbent core when the article is used. 4. The absorbent article according to any of the preceding claims, which further includes a spaced-apart member between the waste passage member, preferably preferentially, and the absorbent core, e < separation member separating at least a portion of the waste passage member directionally preferred from the absorbent core when the article is used. 5 An article for preventing exudates from the body from contacting the skin of a user, characterized in that the absorbent article is provided with a waste passage member; di 'preferentially «-tc? a' < Does the surface have a surface that gives the body and a surface that gives G 'an opposite garment, for at least a portion of the surface that it gives to the body of 1? Preferential directional waste passage embru, including a soluble material capable of dissolving when in contact with body exudates, degradable material by enzyme that degrades when contacted by enzymes found in body exudates to allow body exudates go through the waste management member's address preference! in the first direction generally away from the skin of the wearer, and at least a portion of the surface that gives the garment of the optionally preferential waste passage member including an urae material that resists the penetration of body exudates. in the second direction generally opposite the first direction. 6. The article according to any of the preceding claims, wherein the soluble material includes a water-soluble material, preferably selected from the group consisting of: polyvinyl alcohol, cellulose materials, starches, polyvinylaniline, polyacrylamide, alginic acid and alkyd compounds soluble in water, and derivatives thereof; or a material sensitive to salt concentration, preferably a crowned ether having a threshold at which the soluble material changes from insoluble to soluble, a temperature-sensitive material, preferably selected from the group consisting of: waxes, pectin or gelatine, which have a threshold at which the soluble material changes from being soluble to soluble. 7. The article according to any of the preceding claims, wherein the soluble material includes a film. 8. The article according to any of the preceding claims, wherein the soluble material includes a pH-sensitive material having a pH threshold at which the soluble material changes from insoluble to soluble. wherein the umbra of pH is between about 5.5 and about 8.5, the soluble material preferably being selected from the group consisting of: polyacrylamides. derivatives of phthalate ,. formalized gelatin, shellac, kerafina, cellulose derivatives, polyacrylic acid derivatives, and vinyl acetate. < The article according to claim 6 or 8, further including an enzyme disposed adjacent to the directionally preferential waste passage member which effects a change in temperature, salt concentration, pH in the article when brought into contact by body exudates to change the solubility of soluble material. 10. The article according to claim 6 or 8, which further includes a hydrolysis substrate arranged adjacent to the soluble material, the hydrolysis substrate effecting a change in temperature, salt concentration, pH in the article when hydrolyzed by Fecal enzymes to change the solubility of the soluble material. 11. The article according to any of the claims • precedents wherein the barrier material is selected from the group consisting of: silicones, oils, waxes, and compositions based on polytetrafluoroethylene 12. The article according to any of the preceding claims, further comprising a composition adherenle to the body arranged on or integral with the surface that gives the body of the directionally preferential waste passage member, the body adherent composition preferably selected from the group consisting of: gelatins, silicones, oils, waxes, hydrocolloid adhesives and hydrogel. 13. The article according to claim 12 wherein the body adherent composition is disposed adjacent to a portion of the surface that gives the body of the directional waste passage member directionally preferred. 14. The article according to any of the preceding claims, wherein the soluble material or the material degradable by the enzyme is located in such a way that it is adjacent to the anus or the urethra of the user when the patient is worn. 20 article. 15. The article according to any of the preceding claims, wherein the waste passage member directionally preferred! includes a crosslinked insoluble member having interstices, at least some of the interstices having the soluble material or the degradable material by the enzyme arranged 25 in there. 16. The article according to any of the preceding claims, wherein the directionally preferential waste passage member includes at least one slit, bore, perforation or a weakened region. 17. The article according to any of the preceding claims wherein at least a portion of the preferential waste passage member is elastically extensible.