Thin absorbent core made from folded absorbent laminate
First Claim
1. An absorbent article comprising:
- a liquid permeable topsheet with an opening positioned so as to allow for passage of a bowel movement from an intended user through the topsheet;
a backsheet; and
an absorbent core positioned between the topsheet and the backsheet;
wherein said absorbent core comprises a longitudinally C-folded absorbent laminate, said absorbent laminate comprising an upper layer, a lower layer, and an absorbent layer positioned between the upper and lower layers;
wherein said C-folded absorbent laminate is folded to include a central channel area, two side marginal areas, a front edge and a back edge and wherein said two side marginal areas are C-folded at least once, forming two side folded areas and a central channel area, said central channel providing free volume wherein said free volume provides for containment of bowel movements which have passed though the opening in said topsheet, and provides for containment of liquid temporarily until the liquid can be absorbed by the absorbent laminate.
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Accused Products
Abstract
A disposable absorbent garment comprising a topsheet, a back-sheet and an absorbent core disposed between the topsheet and backsheet is disclosed. The absorbent core is formed from a folded laminated comprising three layers, including an upper layer, a lower layer and a central fibrous layer including from about 50 to about 95 percent by weight superabsorbent polymer and about 5 to about 50 percent by weight stabilization additives. The upper and lower layers comprise tissue, airlaid fluff pulp synthetic non-woven fibrous layers. The central fibrous layers is adhesively bonded to both the upper and lower layers, all layers together assisting to maintain the dry and wet integrity of the absorbent core. Folding of the thin absorbent laminate provides an absorbent core that can handle large doses of urine. The folded structure provides a central channel that provides free volume for temporary liquid storage, isolation and containment of bowel movements, and increases the surface area of laminate available for liquid absorption. The absorbent garment thus formed is very thin, lightweight and economical.
171 Citations
33 Claims
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1. An absorbent article comprising:
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a liquid permeable topsheet with an opening positioned so as to allow for passage of a bowel movement from an intended user through the topsheet;
a backsheet; and
an absorbent core positioned between the topsheet and the backsheet;
whereinsaid absorbent core comprises a longitudinally C-folded absorbent laminate, said absorbent laminate comprising an upper layer, a lower layer, and an absorbent layer positioned between the upper and lower layers;
whereinsaid C-folded absorbent laminate is folded to include a central channel area, two side marginal areas, a front edge and a back edge and wherein said two side marginal areas are C-folded at least once, forming two side folded areas and a central channel area, said central channel providing free volume wherein said free volume provides for containment of bowel movements which have passed though the opening in said topsheet, and provides for containment of liquid temporarily until the liquid can be absorbed by the absorbent laminate. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33)
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Specification