An absorbent core is provided including a substrate that performs at least one fluid handling function. At least a portion of at least one region of the substrate has been modified by aperturing, calendering, coating, creping, heating, printing stretching, or a combination thereof to impart at least
An absorbent core is provided including a substrate that performs at least one fluid handling function. At least a portion of at least one region of the substrate has been modified by aperturing, calendering, coating, creping, heating, printing stretching, or a combination thereof to impart at least one different fluid handling function. The substrate is folded to provide a plurality of panels wherein at least a portion of one panel corresponds to at least a portion of the modified region of the substrate. An absorbent article including the absorbent core and a process for making the absorbent core are also disclosed.
대표청구항▼
1. An absorbent core comprising: a substrate which is folded upon itself to provide a plurality of panels, wherein the substrate is folded to provide an absorbent core having a cross-sectional configuration selected from the group consisting of an “e”-shape, a “z”-shape, a sigma-shape and an accordi
1. An absorbent core comprising: a substrate which is folded upon itself to provide a plurality of panels, wherein the substrate is folded to provide an absorbent core having a cross-sectional configuration selected from the group consisting of an “e”-shape, a “z”-shape, a sigma-shape and an accordion-shape;the substrate performing a first fluid handling function;at least one portion of at least one panel performing only a second fluid handling function different from the first fluid handling function;wherein the at least one portion of at least one panel further comprises a modifying material comprising a binding agent which is an absorbent adhesive composition of an in situ neutralizable binder composition. 2. The absorbent core of claim 1, wherein the substrate comprises a material selected from the group consisting of nonwoven webs, woven webs, knitted fabrics, cellulosic tissue sheets, plastic films, foams, stranded composites, elastomer net composites and combinations thereof. 3. The absorbent core of claim 1, wherein the first and second fluid handling functions are selected from the group consisting of body waste barrier, distribution, feces containment, feces modification, intake, lock-up, menses containment, menses modification, odor control, retention, and skin treatment. 4. The absorbent core of claim 1, wherein the at least one portion of at least one panel comprises apertures. 5. The absorbent core of claim 1, wherein the at least one portion of at least one panel has a higher density than another portion of the substrate. 6. The absorbent core of claim 1, wherein the substrate is folded such that at least a portion of the modifying material is enclosed within the absorbent core. 7. The absorbent core of claim 1, wherein the in situ neutralizable binder composition includes a copolymer of an unneutralized polyacid and a polyamine binder material. 8. The absorbent core of claim 7, wherein the copolymer of an unneutralized polyacid comprises a material selected from the group consisting of poly(acrylic acid), poly(methacrylic acid), poly(maleic acid), carboxymethyl cellulose, alginic acid, poly(aspartic acid), and poly(glutamic acid). 9. The absorbent core of claim 7, wherein the polyamine binder material comprises a material selected from the group consisting of poly(vinylamine), a polyethylenimine, a poly(vinylguanidine), a poly(allylamine), a poly(allylguanidine), a poly(lysine), a poly(arginine), a poly(histidine), a poly(dialkylaminoalkyl (meth)acrylamide), and copolymers containing lysine, arginine or histidine. 10. The absorbent core of claim 7, wherein the substrate is folded such that the copolymer of an unneutralized polyacid and the polyamine binder material are brought together in such a manner to provide a macro bipolar absorbent film. 11. The absorbent core of claim 1 further comprising an absorbent material having an absorbent capacity of at least about 7 grams 0.9 weight percent saline per gram absorbent material. 12. The absorbent core of claim 11, wherein the absorbent material comprises a superabsorbent material selected from the group consisting of crosslinked forms of sodium polyacrylate, sodium polymethacrylate, polyacrylamide, carboxymethyl cellulose, grafted starch, poly(sodium aspartate), poly(vinyl amine), poly(dimethyldiallyl amine), chitosan salt, and/or poly(ethylene imine) and combinations thereof. 13. The absorbent core of claim 11, further comprising an attachment mechanism for securing the absorbent material to the substrate, the attachment mechanism selected from the group consisting of physical bonds, chemical bonds and combinations thereof. 14. An absorbent article comprising: an absorbent core having a substrate which is folded upon itself to provide a plurality of panels; wherein the substrate is folded to provide an absorbent core having a cross-sectional configuration selected from the group consisting of a “z”-shape, a sigma-shape and an accordion-shape;the substrate performing a first fluid handling function;at least one portion of at least one panel performing only a second fluid handling function different from the first fluid handling function;wherein the at least one portion of at least one panel further comprises a modifying material comprising a binding agent which is an absorbent adhesive composition of an in situ neutralizable binder composition. 15. The absorbent article of claim 14, wherein the article is an absorbent garment. 16. The absorbent article of claim 14, wherein the article is a medical garment. 17. The absorbent article of claim 14, wherein the article is selected from the group consisting of wipes, tissues, sweat pads, head mats, and bed pads. 18. The absorbent article of claim 15, wherein the absorbent garment comprises: a bodyside liner;a garment-side cover; andthe absorbent core positioned between the bodyside liner and the garment-side cover. 19. The absorbent article of claim 15, wherein the absorbent garment has an average thickness of about 6.4 millimeters or less. 20. The absorbent core of claim 14, wherein the first and second fluid handling functions are selected from the group consisting of body waste barrier, distribution, feces containment, feces modification, intake, lock-up, menses containment, menses modification, odor control, retention, and skin treatment.
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