Method of forming a unitized absorbent product with a density gr

Details Method of forming a unitized absorbent product with a density gr Method of forming a unitized absorbent product with a density gr

1994-11-07

1999-06-29

Maki, Steven D.

Plastic and nonmetallic article shaping or treating: processes

Forming articles by uniting randomly associated particles

Stratified or layered articles

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

Patent

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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A.A. Burgeni and C. Kapur, "Capillary Sorption Equilibria in Fiber Masses," Reprinted from Textile Research Journal, vol. 37, No. 5, May, 1967.

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