Crosslinked acrylic moisture absorbing fibers and production...

Details Crosslinked acrylic moisture absorbing fibers and production... Crosslinked acrylic moisture absorbing fibers and production...

D - Textiles, Paper

06

M

D06M 13/338 (2006.01) D06M 11/63 (2006.01) D06M 11/76 (2006.01)

Patent

CA 2332143

A process which can yield a crosslinked acrylic hygroscopic fiber having sufficient performance with respect to moisture absorption/release and in which the amounts of chemicals (hydrazine, sodium carbonate, etc.) used for crosslinking and hydrolysis can be reduced and the time required for these treatments can be shortened. The process comprises crosslinking and hydrolyzing an acrylic fiber made of a polymer containing 1 to 5 wt.% comonomer units having an acid group.

L'invention concerne un procédé pouvant produire une fibre hygroscopique réticulée acrylique ayant un rendement suffisant du point de vue de l'absorption/libération d'humidité et dans laquelle les quantités d'agents chimiques (hydrazine, carbonate de sodium, etc) utilisées dans la réticulation et l'hydrolyse peuvent être réduites, et le temps requis pour ces traitements peut être raccourci. Le procédé consiste à réticuler et à hydrolyser une fibre acrylique constituée d'un polymère contenant 1 à 5 % en poids d'unités comonomères ayant un groupe acide.

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