Process for preparing polycarboxylic acid crosslinked fibers...

Details Process for preparing polycarboxylic acid crosslinked fibers... Process for preparing polycarboxylic acid crosslinked fibers...

D - Textiles, Paper

06

M

8/93.25

D06M 13/192 (2006.01) D21C 9/00 (2006.01)

Patent

CA 2029025

Disclosed is a process for making individualized, crosslinked fibers which includes the steps of providing cellulosic fibers, contacting the fibers with a solution containing a C2-C9 polycarboxylic acid crosslinking agent, mechanically separating the fibers into substantially individual form, drying the fibers and reacting the crosslinking agent with the individualized fibers to form intrafiber crosslink bonds. Preferably, the crosslinking agent is citric acid, and preferably, between about 0.5 mole % and about 10.0 mole % of the crosslinking agent reacts to form the intrafiber crosslink bonds. The individualized, crosslinked fibers are useful in a variety of absorbent structure applications.

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