Absorbent structures containing superabsorbent material and web of wetlaid stiffened fibers
AssigneeThe Procter & Gamble Company
InventorsGerald A. Young, Danny R. Moore, Jeffrey T. Cook
Life of this patent
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Abstract
Absorbent structures having a wetlaid fluid acquisition/distribution layer with an average dry density of less than about 0.30 g/cc, an average density upon wetting with 1.0% NaCl aqueous solution of less than about 0.20 g/cc, and an average dry basis weight from about 0.001 to about 0.10 g/cm.sup.2 ; and a fluid storage layer positioned beneath the aquisition/distribution layer comprising at least about 15% superabsorbent material. The fluid acquisition/distribution layer comprises from about 50% to 100% chemically stiffened cellulosic fibers and from 0% to about 50% binding means.
Claims23
An absorbent article for acquisition, distribution, and storage of bodily fluids, said article comprising:
- (a) a fluid pervious topsheet;
- (b) a fluid impervious backsheet affixed to said topsheet;
- and
- (c) an absorbent core disposed between said topsheet and said backsheet, said absorbent core having:
- (i) a wetlaid fluid acquisition/distribution layer having an average dry density of less than about 0.30 g/cc, an average density upon saturation with 1.0% NaCl aqueous solution, on a dry weight basis, of less than about 0.20 g/cc, and an average dry basis weight of from about 0.001 to about 0.10 g/cm.sup.2, said acquisition/distribution layer comprising from about 50% to 100%, dry weight basis, chemically stiffened cellulosic fibers and from 0% to about 50%, dry weight basis, of a binding means;
- and
- (ii) a fluid storage layer, positioned beneath said acquisition/distribution layer relative to said topsheet, comprising at least about 15%, by weight of said storage layer, of superabsorbent material and from 0% to about 85% of a carrier means for said superabsorbent material;
- said fluid acquisition/distribution layer having a top surface area which is from about 15% to about 95% of the top surface area of said fluid storage layer.
An absorbent structure for acquisition, distribution, and storage of bodily fluids, said article comprising:
- (i) a wetlaid fluid acquisition/distribution layer having an average dry density of less than about 0.30 g/cc, an average density upon saturation with 1.0% NaCl aqueous solution, on a dry weight basis, of less than about 0.20 g/cc, and an average dry basis weight of from about 0.001 to about 0.10 g/cm.sup.2, said acquisition/distribution layer comprising from about 50% to 100%, dry weight basis, chemically stiffened cellulosic fibers and from 0% to about 50%, dry weight basis, of a binding means;
- and
- (ii) a fluid storage layer, positioned beneath said acquisition/distribution layer relative to said topsheet, comprising at least about 15%, by weight of said storage layer, of superabsorbent material and from 0% to about 85% of a carrier means for said superabsorbent material;
- said fluid acquisition/distribution layer having a top surface area which is from about 15% to about 95% of the top surface area of said fluid storage layer.
Dependencies are inferred from the claim text.