Method of forming a unitized absorbent product with a density gr

Plastic and nonmetallic article shaping or treating: processes – Forming articles by uniting randomly associated particles – Stratified or layered articles

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156 622, 156 628, 264119, 264122, 264126, B32B 3120, D04H 142, D04H 144, D04H 154

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active

059165073

ABSTRACT:
A method of constructing multi-layer products for absorbing fluids is disclosed. In the methods of the present invention, two or more layers of materials chosen to vary in recovery are compressed such that an absorption gradient forms through the continuous intimately associated layers. A first layer preferably remains densified while a second layer "blooms" to form an open, absorptive layer, which acts as a reservoir, drawing absorbed fluids into the densified layer, where they are retained.

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