Integrated absorbent structures with density and liquid affinity

Details Integrated absorbent structures with density and liquid affinity Integrated absorbent structures with density and liquid affinity

1995-06-08

1996-12-31

Theisen, Mary Lynn

Plastic and nonmetallic article shaping or treating: processes

Forming articles by uniting randomly associated particles

Stratified or layered articles

264518, B27N 304

Patent

active

055891179

ABSTRACT:
There is provided by this invention a least three integrated regions, each region having wherein the density and fluid affinity of the composite continuously increases from top to bottom thereby facilitating effective fluid transport and efficient utilization of storage capacity. An additional layer of SA and tissue may be provided to the absorbent product to provide an absorbent structure with dry feel and low stain. Methods of forming integrated, multi-layered absorbent composites and structures comprising at least three regions wherein each region has distinct density and fluid affinity gradients and wherein the density and fluid affinity of the composite continuously increases from top to bottom, are also provided herein.

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patent: 4699823 (1987-10-01), Hellenberger et al.
patent: 4834735 (1989-05-01), Alemany et al.
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patent: 5134007 (1992-07-01), Reising et al.
patent: 5143680 (1992-09-01), Molnar et al.
patent: 5294478 (1994-03-01), Wanek et al.

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