Absorbent structure containing individualized,...

Details Absorbent structure containing individualized,... Absorbent structure containing individualized,...

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01

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252/28, 2/98.04

B01J 20/24 (2006.01) A61L 15/28 (2006.01) A61L 15/60 (2006.01) D04H 1/64 (2006.01) D06M 13/192 (2006.01) D21C 9/00 (2006.01)

Patent

CA 2029014

Disclosed are absorbent structures containing individualized, crosslinked fibers. The individualized, crosslinked fibers preferably have a C2 - C9 polycarboxylic acid crosslinking agent reacted with the fibers in the form of intrafiber crosslink bonds. Preferably, the crosslinking agent is citric acid, and between about 0.5 mole % and about 10.0 mole % crosslinking agent react to form the intrafiber crosslink bonds. Also preferably, the absorbent structures have actual dry densities greater than their corresponding equilibrium wet densities, and expand upon wetting. The absorbent structures may also contain hydrogel-forming material.

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