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US 5,356,403 AGranted
Absorbent structure comprising a fibrous matrix having dual z-directional gradient
AssigneeKimberly-Clark Corporation
InventorsMichael J. Faulks, Daniel R. Schlinz
Life of this patent
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Abstract
Disclosed is an absorbent structure containing a fibrous matrix having a dual Z-directional gradient wherein the concentration of high-absorbency material decreases from a first planar surface of the fibrous matrix to the opposed second planar surface, while the density of the fibrous matrix increases from said first major planar surface to the second planar surface. Also disclosed is an absorbent article containing such an absorbent structure.
Claims53
An absorbent structure, said absorbent structure comprising:
- a fibrous matrix having a first one-half comprising a first major planar surface, and a second one-half comprising a second opposed major planar surface, said first one-half and said second one-half of said fibrous matrix containing a high-absorbency material, said fibrous matrix being characterized in that the first one-half of said fibrous matrix containing said first major planar surface comprises a greater concentration of high-absorbency material and has a lower average density than the second one-half of said fibrous matrix containing said second major planar surface and wherein said first one-half of said fibrous matrix comprises from about 20 to about 95 weight percent of said high-absorbency material based on a total weight of the fibrous matrix and high-absorbency material present in said first one-half of the fibrous matrix.
An absorbent article, said article comprising:
- an outer cover;
- a liquid-permeable bodyside liner;
- and
- an absorbent structure located between said outer cover and said bodyside liner, said absorbent structure comprising:
- a fibrous matrix having a first one-half comprising a first major planar surface, and a second one-half comprising a second opposed major planar surface, said first one-half and said second one-half of said fibrous matrix containing a high-absorbency material, the fibrous matrix being characterized in that the first one-half of said fibrous matrix containing said first major planar surface comprises a greater concentration of high-absorbency material and has a lower average density than the second one-half of said fibrous matrix containing said second major planar surface and wherein said first one-half of said fibrous matrix comprises from about 20 to about 95 weight percent of said high-absorbency material based on a total weight of the fibrous matrix and high-absorbency material present in said first one-half of the fibrous matrix.
2 more elements
The absorbent article according to claim 20 wherein said second half of said fibrous matrix comprises from about 5 to about 50 weight percent of said high-absorbency material based on a total weight of the fibrous matrix and high-absorbency material present in said second one-half of the fibrous matrix.
An absorbent structure, said absorbent structure comprising:
- a fibrous matrix having a first one-half comprising a first major planar surface, and a second one-half comprising a second opposed major planar surface, said first one-half and said second one-half of said fibrous matrix containing a high-absorbency material, said fibrous matrix being characterized in that the first one-half of said fibrous matrix containing said first major planar surface comprises a greater concentration of high-absorbency material and has a lower average density than the second one-half of said fibrous matrix containing said second major planar surface and wherein said first one-half of said fibrous matrix has a density of from about 0.01 to about 0.2 grams per cubic centimeter.
An absorbent structure, said absorbent structure comprising:
- a fibrous matrix having a first one-half comprising a first major planar surface, and a second one-half comprising a second opposed major planar surface, said fibrous matrix containing a high-absorbency material, said fibrous matrix being characterized in that the first one-half of said fibrous matrix containing said first major planar surface comprises a greater concentration of high-absorbency material and has a lower average density than the second one-half of said fibrous matrix containing said second major planar surface and wherein said second one-half of said fibrous matrix comprises from about 5 to about 50 weight percent of said high-absorbency material based on a total weight of the fibrous matrix and high-absorbency material present in said second one-half of the fibrous matrix.
An absorbent article, said article comprising:
- an outer cover;
- a liquid-permeable bodyside liner;
- and
- an absorbent structure located between said outer cover and said bodyside liner, said absorbent structure comprising:
- a fibrous matrix having a first one-half comprising a first major planar surface, and a second one-half comprising a second opposed major planar surface, said first one-half and said second one-half of said fibrous matrix containing a high-absorbency material, the fibrous matrix being characterized in that the first one-half of said fibrous matrix containing said first major planar surface comprises a greater concentration of high-absorbency material and has a lower average density than the second one-half of said fibrous matrix containing said second major planar surface and wherein said first one-half of said fibrous matrix has a density of from about 0.01 to about 0.2 grams per cubic centimeter.
2 more elements
An absorbent article, said article comprising:
- an outer cover;
- a liquid-permeable bodyside liner;
- and
- an absorbent structure located between said outer cover and said bodyside liner, said absorbent structure comprising:
- a fibrous matrix having a first one-half comprising a first major planar surface, and a second one-half comprising a second opposed major planar surface, said fibrous matrix containing a high-absorbency material, the fibrous matrix being characterized in that the first one-half of said fibrous matrix containing said first major planar surface comprises a greater concentration of high-absorbency material and has a lower average density than the second one-half of said fibrous matrix containing said second major planar surface and wherein said second one-half of said fibrous matrix comprises from about 5 to about 50 weight percent of said high-absorbency material based on a total weight of the fibrous matrix and high-absorbency material present in said second one-half of the fibrous matrix.
2 more elements
Dependencies are inferred from the claim text.