CROSSLINKED ACRYLIC HYGROSCOPIC FIBER AND PROCESS FOR PRODUCING THE SAME

摘要

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.