US PATENT SUBCLASS 8 / 538
GELLED FIBER-DYEING PROCESS OR PRODUCT

Current as of: June, 1999
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8 /   HD   BLEACHING AND DYEING; FLUID TREATMENT AND CHEMICAL MODIFICATION OF TEXTILES AND FIBERS

538GELLED FIBER-DYEING PROCESS OR PRODUCT

DEFINITION

Classification: 8/538

GELLED FIBER-DYEING PROCESS OR PRODUCT:

(under the class definition) Subject matter relating to processes for dyeing gelled fibers and product thereof.

(1) Note. Usually gelling of fibers occurs during the spinning of polyacrylonitrile or viscose from an aqueous bath. Drying and heating hardens the fibers and they lose their ready internal accessibility to dyes.