Abstract: A method of producing easily densified high bulk fibers that have adhered particulates. The high bulk fibers have hydrogen bonding or coordinate covalent bonding functionalities, and a binder is applied to the fibers to bind the particles to the fibers. The binder has a functional group that forms a hydrogen bond or a coordinate covalent bond with the particles, and a functional group that forms a hydrogen bond with the fibers. A substantial portion of the particles that are adhered to the fibers are adhered in particulate form by hydrogen bonds or coordinate covalent bonds to the binder, and the binder is in turn adhered to the fibers by hydrogen bonds. Fibers containing particles bound by this method are easily densified.

Abstract: A highly absorbent and flexible cellulosic pulp board comprising a perf-embossed cellulosic pulp board which has incorporated therein a hydrophilizing and softening effective amount of a debonding agent wherein the density of the board is in the range of about 0.1 to 1.0 g/cc and its method of making and method of use in disposable absorbent products.

Abstract: An applicator is disclosed for inserting a substance into a body cavity. The applicator is especially useful for inserting a catamenial tampon into a woman's vagina. The applicator includes a tubular member formed from at least one layer of paper which has an exterior surface. The tubular member is capable of holding the substance which is to be inserted. The exterior surface of the tubular member is coated with a water-insoluble coating which is comprised of from between about 95 to about 98 percent by weight of a polymeric material and from between about 2 to about 5 percent by weight of a slip agent. The coating provides the tubular member with a dry coefficient of kinetic friction ranging from between about 0.35 to about 0.56 and a wet coefficient of kinetic friction ranging from between about 0.78 to about 1.06. These low dry and wet coefficient of kinetic friction values facilitate insertion of the applicator into the body cavity.

Abstract: The present invention encompasses flushable compositions and flushable products, such as flushable personal hygiene articles, flushable medical, hospital and surgical supplies, and flushable household wipes and packaging material that have sufficient wet tensile strength for their intended use, particularly prolonged or extended use, in the presence of body waste fluids, but which disintegrate and disperse in the presence of ordinary tap water so as to be flushable in a conventional toilet and disposable in municipal or private sewage systems without obstructing or clogging the toilet or sewage system.

Abstract: An absorbent paper comprising a base layer, which is obtained by paper-sheeting a material containing a highly bulky cellulose fiber, and a surface layer being located on the base layer, which is obtained by paper-sheeting a material containing a highly bulky cellulose fiber, is disclosed. Further, an absorbent article wherein the absorbent paper is used as an absorbent is also disclosed.

Abstract: Chitosan absorbent is prepared by reacting pulverized chitosan suspended as a powder in an organic solvent with an acid and then isolating solid chitosan-acid reaction product.

Abstract: Fibres which have an increased specific surface area and improved absorption properties, preferably intended for use in the form of fluff pulp in absorption articles such as diapers, incontinence guards, etc., in which the fibres present a porous layer of hydrophilic chemicals anchored on the fibre surface; a method of producing such fibres, their use in absorption articles and an absorption material which includes the fibres.

Abstract: Individualized, esterified high lignin content cellulosic fibers containing intrafiber C.sub.2 -C.sub.9 polycarboxylic acid ester perform unexpectedly better in absorbent applications than lower lignin content esterified fibers from the same furnish.

Abstract: New polysaccharide esters are disclosed, and more precisely esters of acidic polysaccharides chosen from the group formed by carboxymethylcellulose, carboxymethyl starch and carboxymethylchitin. These new esters and some esters of the type already known are useful as medicaments, for the manufacture of pharmaceutical and cosmetic preparations, in the field of biodegradable plastic materials and, therefore, for the manufacture of medical, surgical and sanitary articles, as well as numerous other industrial sectors in the place of acidic polysaccharides now in common use.

Abstract: A topsheet for use in body fluid absorptive articles is so improved that collapse and clogging of liquid passages therein may be reliably avoided. The topsheet includes an upper sheet, provided with skin-contacting areas and liquid passages, and a lower sheet provided with skin-non-contacting areas, areas welded to the liquid passages, and exposed areas. The exposed areas are welded to each of the liquid passages around lower openings thereof so as to protect the liquid passage against collapse and clogging. The exposed areas define a skin-contacting surface which rises up into each of the liquid passages without extending above the upper surface of the skin-contacting areas. The upper sheet cooperates with the lower sheet to define cavities extending in the direction of the topsheet thickness.

Abstract: Absorbent structures are disclosed which contain specific, relatively, narrow, particle size distributions of superabsorbent hydrogel-forming materials in relatively high concentrations. The absorbent structures of the present invention are useful in disposable absorbent articles such as diapers, adult incontinence pads, and the like. The absorbent articles of the present invention comprise a liquid pervious topsheet, a liquid impervious backsheet joined to the topsheet, and an absorbent core positioned between the topsheet and backsheet. At least a portion of the absorbent core comprises between about 25% and about 90% by weight particles of substantially water-insoluble, absorbent hydrogel-forming, polymer material formed by solution polymerization methods. The particles of the hydrogel-forming, polymer material are of such size that at least about 80% of the particles, by weight, will pass through a U.S. Standard 50 mesh sieve with 297 micron openings and be retained on a U.S.

Abstract: Absorbent structures are disclosed which contain a particulate material composition. The particulate material composition comprised specific, relatively narrow, particle size distributions of superabsorbent hydrogel-forming material particles formed by solution polymerization methods and mixed with inorganic powders. The particles of superabsorbent material are of such size that at least about 70% of said particles, by weight, will pass through a U.S. Standard 50 mesh sieve with 297 micron openings and be retained on a U.S. Standard 170 mesh sieve with 88 micron openings when said particles are tested according to the Sieving Test described herein. The inorganic powder, such as amorphous silica, is intermixed with the particles of superabsorbent material in amount of between about 0.1 to about 5 parts per 100 parts of the particles of superabsorbent material. The absorbent structures of the present invention are useful in disposable absorbent articles such as diapers, adult incontinence pads, and the like.

Abstract: A continuous process for manufacturing absorbent pads is disclosed which comprises providing a fibrous web material and applying a fluid absorbent cover and a fluid impermeable barrier layer thereto in situ. In preferred embodiments, the pads are securable to fluid-protected surfaces by means of an adhesive on the barrier layer's outer surface.

Abstract: A reusable pad for the absorption, dispersion and retention of a liquid comprises an interior layer of hydrophobic material for receiving the liquid, a median layer consisting of a non-woven web of carded and cross-laid viscose rayon fibres and an outer layer of substantially waterproof polyurethane film. The fibres of the median layer have a cross-section of substantially rigid multilimbed configuration. The web is stitchbonded to form a cohesive layer for dispersing and absorbing the liquid. The web is stitchbonded with a thread under medium tension whereby uniform absorption characteristics are retained throughout said web. The interior layer, median layer and outer layer are joined to form a pad of unitary construction and capable of being washed for reuse.

Abstract: A polymeric composition specifically adapted to absorb blood and other proteinaceous fluids and having repeating units, said polymeric composition comprising pendant neutralized carboxyl groups (salts) and pendant carboxyl groups. The polymeric composition is characterized in that the ratio of pendant neutralized carboxyl groups to pendant carboxyl groups is within the range of from about 1:9 to about 9:11, at least about 20 mole percent of the repeating units comprise a pendant neutralized carboxyl group or a pendant carboxyl group, and at least about 50 percent of the pendant neutralized carboxyl groups have been neutralized with a potassium or lithium base.

Abstract: A fluid-absorbing article for personal use, such as a diaper or incontinence pad utilizing a core component having a plurality of contiguous zones comprising(a) a zone of vulnerability arranged within said core component for maximum potential exposure to wetting and(b) a plurality of intermediate zones in direct or indirect fluid receivable relation from the zone of vulnerability in areas of reduced potential exposure to initial wetting; the corresponding core component; and a method for increasing fluid receptivity and fluid storage efficiency plus reduced rewet characteristics of core components by use of intermediate zones as described.

Abstract: A reusable diaper pad is disclosed for the absorption, dispersion and retention of a liquid. The pad comprises an interior layer of hydrophobic material for receiving the liquid, a median layer consisting of non-woven webs of carded and cross-laid viscose rayon fibres having a cross-section of substantially rigid multilimbed configuration with the webs being stitchbonded to form a cohesive layer for dispersing and absorbing the liquid and an outer layer of a substantially waterproof polyurethane film. The interior layer, median layer and outer layer are joined to form a pad of unitary construction and capable of being washed for reuse.

Abstract: The invention concerns an absorbent material consisting of one or several layers permeable to liquids and an absorbing body having a high absorption and retention capacity for aqueous liquids, characterized by a structure consisting of a wrapper 1 made of a formed-fabric-type of material of an organic polymer, an intermediate tissue layer 2 made of an organic polymer, an absorbing body 3 composed of chemical pulp and an absorbent for aqueous liquids and a binder stabilizing the wrapper as well as the use of said absorbent materials for the production of absorbent bodies, inlays and pads.The invention also concerns a structure comprising such an absorbent material in combination with a wrapper impermeable to liquids.

Abstract: A substantially hydrophobic and biodegradable laminar cellulose-base material consisting of a cellulose-base woven fabric treated with a reaction agent emulsified with a cationic starch and water together with a retention agent is disclosed. Novel assemblies of disposable goods useful for collecting corporal fluids excreted by human body are also disclosed.

Abstract: In a product including at least a first layer of fibers, the layer residing in a thickened, shortened microundulated state as a result of longitudinal micro-compressive treatment, the layer is characterized by being shortened at least 20% of its original length in the direction of treatment, there being at least 10 microundulations per inch in the layer in the direction of the treatment, the compressed-together relationship achieved by the treatment being substantially preserved in said product with adjacent microundulations in said layer residing with their sides abutting one another. The microundulated layer is shape-retentive and has stored mechanical energy capable, under activating conditions, to cause the product to expand. Products, and a method of producing such products, are also described. The products include superabsorbent assemblages, tampons, pads, cushions and liquid distributing and storage articles.

Abstract: An envelope having flexible water-permeable or porous walls contains a quantity of particulate water-insoluble hydrogel. The quantity of hydrogel in the envelope is such that, when the hydrogel is fully swollen at 20.degree. C., its volume is at least 66%, preferably at least 100%, of the maximum non-stretched internal volume of the envelope. Thus, the envelope according to the invention is limp and floppy under dry conditions but in a wet environment the hydrogel absorbs water and swells accordingly causing the envelope to swell and take on a more rigid configuration. The envelope is particularly useful for the administration of sustained release pharmaceutically or veterinarily active ingredients. Thus the limp dry envelope may for example be rolled up for introduction through the throat but will swell up and therefore be retained in the stomach for sustained release of the active ingredient therein.

Abstract: An absorbent composite of the type comprising a porous matrix of fibers and a superabsorbent material dispersed among the interfiber spaces (pores) wherein the superabsorbent material exhibits the ability to absorb greater than about 24 milliliters of a saline solution per gram of superabsorbent material under an applied restraining force of at least about 21,000 dynes/square centimeter provided that, when in the form of discrete particles, at least about 50% of said superabsorbent material has a size greater than the median pore size of the matrix when wet.

Abstract: A process is disclosed for bonding blends of cellulosic fluff pulp and fusible synthetic pulp or fiber having a melting point less than 250.degree. C., by high-speed dielectric heating. The process works in the absence of any dielectric sensitizing material, but requires the resulting blend have a density between 0.005 and 0.50 g/cc so that the blend can be bonded in less than 15 seconds. The process is useful for producing disposable baby diapers, adult incontinence products and feminine pads.

Abstract: Absorbent retentive pulp is described which is capable of retaining good absorbency even after having been highly compressed. The pulp is produced by mixing a microfibrillated pulp slurry with a cross-linking agent followed by freeze drying.

Abstract: A wound dressing is provided herein for systemic administration of a physiologically- or biologically-active agent by controlled release of the agent into such wound. The wound dressing includes a substrate in the form of a fabric or cloth, at least a portion of which is cellulosic, which has been chemically modified to convert hydroxyl groups in the cellulosic portion to ionic-adsorbing sites. An ionic form of a physiologically- or biologically-active agent, namely an antibacterial agent, an antifungal agent, an analgesic agent, a tissue healant agent, a local anesthetic agent, an antibleeding agent, an enzyme or a vasoconstrictor is adsorbed in that substrate. Ionic bonds hold that agent temporarily to the substrate for controlled release therefrom in proportion to the amount of exudate in contact with the substrate. The ionic bonds are formed by adsorbing that agent on that substrate at room temperature.

Abstract: A combination of hot melt and water-based adhesives (solution resin or latex) is particularly advantageous for bonding fibers together to form a layer and for bonding that layer to an adjoining layer. The water-based adhesive, which need not be crosslinkable, provides fiber-to-fiber bonding through the layer of fibers, while the hot melt adhesive bonds the layer of fibers to the adjoining layer. In preferred embodiments, the layer of fibers is moisture absorbent and formed of wood pulp, cotton, rayon, or cellulose triacetate fibers (possibly with the addition of a small amount of thermoplastic fibers to increase bulk); the fibers can be reprocessed fibers of irregular lengths; the water-based adhesive is a latex, non-crosslinkable adhesive; the adjoining layer is permeable to moisture and made of a nonwoven polyolefin, rayon, polyester, or blend thereof; a moisture-barrier layer (e.g.

Abstract: A fibrous web having an enhanced capacity for water absorption is produced by impregnating an absorbent fabric with a polymer or copolymer capable of forming by cross-linking an absorbent polymer or copolymer and subsequently heating the treated fabric effecting cross-linking of the polymer to form an absorbent polymer. The product may comprise a non-woven fibrous web or mat having a water-insoluble binder on one surface and a cross-linked hydrophilic polymer or copolymer on its opposite surface.

Abstract: Deodorant bedding of this invention comprises wadding having a first fiber retaining metal complex having oxidation-reduction power and a second fiber retaining metal ion. Therefore, foul smelling substances are oxidized by the metal complex and adsorbed by metal ion complex exchange reaction, and then the bedding will be deodorized.

Abstract: A disposable, absorbent diaper comprising a topsheet, a liquid impervious backsheet associated with the topsheet, and an absorbent core disposed between the topsheet and the backsheet, wherein the absorbent core has a dusting layer of mechanical pulp fibers, a continuous primary layer of mechanical pulp fibers containing from about 8% to about 60%, on a total primary layer dry weight basis, of discrete particles of polymeric gelling material, and a water-permeable core reinforcing layer disposed between the dusting layer and the primary layer. The mechanical pulp fibers, preferably chemithermomechanical pulp fibers, have an average fiber length of at least about 1.9 mm and are in a highly disintegrated condition.

Abstract: An elastomeric nonwoven absorbent web is provided. The web comprises a nonwoven fibrous matrix of elastomeric melt-blown small diameter fibers and absorbent staple fibers or absorbent particulate material, wicking staple fibers, and bulking staple fibers dispersed throughout the matrix. This web is particularly useful in an absorbent elastomeric wound dressing. The wound dressing has a fluid permeable, compliant, low adherency wound contacting layer, an intermediate conformable, fluid-absorbent element, i.e., the elastomeric nonwoven absorbent web, and a soft, compliant cover layer.

Abstract: The present invention provides absorbent articles, such as disposable diapers, which utilize a particular type of stiffened cellulose fibers and a particlar type and form of polymeric gelling agent particles to enhance the absorbency characteristics of such articles. In these articles, the gelling agent material, combined in particulate form of a certain size with stiffened cellulose fiber material, is primarily placed in a lower fluid storage layer of the absorbent core of the article. Such a fluid storage lower layer of the absorbent core is placed underneath an upper, generally larger, fluid acquisition/distribution layer which also contains stiffened cellulose fibers and gelling agent particles of a certain size. This lower fluid storage layer is generally positioned toward the front of the absorbent article. Absorbent articles of this type can be fashioned into especially thin, compact, nonbulky diapers.

Abstract: A method of increasing the absorbency of cellulosic fibers by treating the cellulosic fibers with an aqueous acid solution having a pH value of no more than 4. The treatment is carried out for a time sufficient to obtain the desired absorbency. Optionally, the aqueous acidic solution treatment can be preceded or succeeded by a hot water treatment to further increase the absorbency of the cellulosic fibers. The cellulosic fibers find particular application in nonwoven articles that require high absorbency, i.e., diapers, tampons, medical sponges, etc.

Abstract: Adsorbent retentive pulp is described which is capable of retaining good adsorbency even after having been highly compressed. The pulp is produced by subjecting a microfibrillated pulp slurry to pore generation with pore generating particles and to cross-linking with a cross-linking agent.

Abstract: Individualized, stiffened, twisted cellulosic fibers and absorbent structures made from such fibers. The fibers have an average dry fiber twist count of at least about 4.5 twist nodes per millimeter, an average wet fiber twist count of at least about 0.5 twist nodes per millimeter less than the dry fiber twist count, and a water retention value of between about 28% and about 50%. Preferably the fibers have an average wet fiber twist count of at least about 3.0 twist nodes per millimeter and an isopropyl alcohol retention value of less than about 30%.

Abstract: Individualized, crosslinked fibers made by (a) defibrating moistened, cellulosic fibers and at least partially drying the fibers under substantially unrestrained conditions, i.e., in the substantial absence of interfiber bonds (b) contacting the fibers with a crosslinking agent, (c) reacting the crosslinking agent with the fibers in the substantial absence of interfiber bonds, to form intrafiber crosslink bonds, (d) subjecting the fibers, while in a moistened condition, to a second defibration step, and then at least partially drying the fibers under substantially unrestrained conditions.

Abstract: A process for making individualized, crosslinked fibers having low levels of residual crosslinking agent. The fibers are made by contacting the fibers with a crosslinking agent; reacting the crosslinking agent with the fibers to form intrafiber crosslink bonds in the substantial absence of interfiber bonds; and washing the fibers with an alkaline solution.

Abstract: A process for making wet-laid structures containing individualized, stiffened fibers. The wet-laid structures are obtained by: providing a slurry containing individualized, crosslinked fibers; depositing the slurry of fibers on a foraminous forming wire; directing at least one stream of fluid upon the fibers such that the fluid disperses flocculations of fibers and also inhibits the formation of additional flocculations of the fibers; and setting the fibers into a sheeted form while the fibers are in a substantially unflocculated condition. The step of setting the fibers into sheeted form may be performed by pressing the fibers against the forming wire with a screened roll, such as a cylindrical Dandy Roll. Preferably, a plurality of streams of fluid having sequentially decreasing volumetric flow rates are directed upon the fibers. The individualized, stiffened fibers may also be mixed with conventional, stiffened fibers or highly refined, stiffened fibers while in slurry form.

Abstract: Airlaid fibrous webs having a primary layer having discrete particles of absorbent gelling material dispersed through at least a portion of the web airlaid over a dusting layer of essentially hydrophilic fiber material. The dusting layer acts to block the passage of particles injected in the stream of fibers forming the primary layer so as to minimize equipment plugging problems and the loss of particles or fibers through the foraminous forming element and to provide a more efficient absorbent core.

Abstract: Superabsorbent synthetic fibers are prepared by a method wherein segments of synthetic fibers are coated with a solution of (a) a hydrophilic, uncomplexed polymer and (b) a complexing agent, and the coated fibers are fluff or flash dried causing the polymer to complex and to form a superabsorbent coating on the synthetic fibers in situ.

Abstract: Individualized, crosslinked fiber, and process for making such fibers. The individualized, crosslinked fibers have between about 0.5 mole % and about 3.5 mole % crosslinking agent, calculated on a cellulose anhydroglucose molar basis, reacted with fibers in the form of intrafiber crosslink bonds, wherein the crosslinking agent is selected from the group consisting of C.sub.2 -C.sub.8 dialdehydes, C.sub.2 -C.sub.8 dialdehyde acid analogues having at least one aldehyde functionality, and oligomers of such C.sub.2 -C.sub.8 dialdehydes, and dialdehyde acid analogues. Preferably, the crosslinking agent is glutaraldehyde, and between about 0.75 mole % and about 2.5 mole % crosslinking agent react to form the intrafiber crosslink bonds. The individualized crosslinked fibers are useful in a variety of absorbent structure applications.

Abstract: An absorbent article comprising a base sheet of fluid impervious material, a top sheet of fluid pervious non-woven material, and an absorbent pad disposed between the top sheet and the base sheet. The top sheet is secured to the base sheet along the periphery thereof. The absorbent pad has a central portion and two side panels folded under the top sheet and over the central panel. A binder secures the side panels to the central panel to render the central panel more absorbent.

Abstract: In a method for bonding a nonwoven web of cellulosic fibers by depositing a polymeric binder on the web, the improvement comprising(1) pretreating the cellulosic fibers by depositing up to about 10 wt % of an adhesion-promoting compound which demonstrates adhesion to cellulosic fibers of at least 200 g as measured by a cellophane laminate test, and(2) depositing on the pretreated cellulosic fibers and amount of an overcoat binder polymer sufficient to provide a bonded self-sustaining web.

Abstract: Fungicidally active cellulosic textile compositions, or articles of manufacture, which can be placed in contact with infected human skin, or worn for the treatment and cure of skin diseases. A fungicidally active phenolic compound, drug, or medicinal, is bonded to cellulose or cellulose-containing materials, or finished articles of clothing, notably e.g., socks, rendering these materials useful for the treatment and cure of skin diseases caused by fungi infections over the infected skin areas with which they are in contact. These materials, as bandages or finished articles of clothing, can be washed, dried, and reused over-and-over without addition of a fresh drug, for effective continuing treatment of a skin disease.

Abstract: The present invention is a method of making a resilient hydrophilic cellulosic pulp particularly suitable for conversion into an absorbent fluff for products such as disposable diapers. The process involves treating a wet or partially dried cellulosic fiber web with an aqueous solution of a glycol and dialdehyde. Glyoxal and propylene glycol are preferred materials. These are desirable sprayed on a wet or only partially dried sheet at some convenient location on a conventional paper machine. This location is not critical, but a point about midway through the press section has given excellent results. The treated sheet is then dried conventionally. There is no need for the use of any catalysts or for a prolonged curing step at elevated temperatures. The products of the invention are characterized by a much increased absorbency rate and by a somewhat higher water holding capacity. The sheets also require less power for milling into a fibrous fluff.

Abstract: A process of making a liquid absorbing laminated structure comprising long lengths of absorptive tissues and an intermediate layer of absorptive particles is performed while the tissues are traveling in the direction of their lengths. A film of moistening liquid is transferred to a surface of a first tissue which is then supported in substantially horizontal position and showered with dry absorbent particles, which are rendered adhesive by absorption of the moistening liquid. A second tissue is superposed and the assembly is bonded together by passing it through the nip between a heated roller having a surface temperature of at least 110.degree. C. and a pressure roller. These rollers are pressed together at the nip by a pressure of at least 350 pounds per square inch and each has a surface hardness in excess of 90 Shore A Durometer.

Abstract: Absorbent articles containing both an acidic buffering agent and a non-toxic, non-irritating, non-volatile antimicrobial agent are disclosed. The acidic buffering agent is preferably also an absorbent gelling agent which can imbibe aqueous body fluids in addition to acting as a buffer. Such articles are especially suitable for maintaining the pH of urine and feces discharged into the article at value below about 7.5. This in turn helps to prevent or reduce diaper rash and control odor caused by the production of ammonia.

Abstract: The invention relates to a hydroexpansible composite material, the method of preparing same and a composition for implementing this method, as well as to the uses thereof. The composite material includes a solid flat support having, on at least one of its faces, a coating with a high proportion of a hydroexpansible polymer powder fixed to the support by means of a hydrosoluble binder, the coating being essentially formed of:95 to 55% by weight of hydroexpansible polymer powder;5 to 23% by weight of hydrosoluble binder; and0 to 22% by weight of surfactant.This hydroexpansible material may advantageously be used in medicine, surgery agriculture and especially as sealing agent in cables, particularly electric cables.FIG. 2 shows how, in a cable, this material (11, 13) forms a sealing ring (13) about the point of infiltration of the water, thus preventing its longitudinal propagation.

Abstract: Absorbent structures containing individualized, crosslinked fibers. The individualized, crosslinked fibers preferably have between about 0.5 mole % and about 3.5 mole % crosslinking agent, calculated on a cellulose anhydroglucose molar basis, reacted with the fibers in the form of intrafiber crosslink bonds, wherein the crosslinking agent is selected from the group consisting of C.sub.2 -C.sub.8 dialdehydes, C.sub.2 -C.sub.8 dialdehyde acid analogues having at least one aldehyde functionality, and oligomers of such C.sub.2 -C.sub.8 dialdehydes and dialdehyde acid analogues. More preferably, the crosslinking agent is glutaraldehyde, and between about 0.75 mole % and about 2.5 mole % crosslinking agent react to form the intrafiber crosslink bonds. Also preferably, the absorbent structures have actual dry densities greater than their corresponding equilibrium wet densities, and expand upon wetting. The absorbent structures may also contain hydrogel-forming material.

Abstract: An absorbent article comprises a surface sheet, an absorbent and a back sheet, a part or all, being not to contact the skin, of said back sheet having the below listed three requirements:(a) a coefficient of a kinetic friction against an acrylic resin plate is 1.5 or higher,(b) it is elastic so that it breaks at a length of 300 or larger percent based on the original length, and(c) a force to stretch it by 50 percent based on the original length is 100 kg/cm2 or larger.

Abstract: An absorbent article, such as a disposable diaper, is disclosed which includes a moisture permeable facing layer, a backing layer, and an absorbent layer disposed between said facing and backing layers and including at least one pocket containing a uniform admixture of discrete superabsorbent particles and discrete introfying particles.