Process for dyeing filaments of acrylic polymer

Details Process for dyeing filaments of acrylic polymer Process for dyeing filaments of acrylic polymer

1973-11-12

1976-03-16

Welsh, M. J.

Bleaching and dyeing; fluid treatment and chemical modification

Chemical modification of textiles or fibers or products thereof

Treating textiles or fibers from synthetic resin or natural...

8 17, 8177AB, 8177C, 264 78, D06P 370

Patent

active

039443868

ABSTRACT:
A process is disclosed for dyeing a bundle of dry-spun acrylonitrile polymer filaments before the solvent remaining after the spinning step has been extracted. The filaments having a water content of not over 30%, are subjected to a dye bath, and drawn while immersed in the bath at least 1.5.times. and are then washed to rinse them and to extract spinning solvent.

REFERENCES:
patent: 2774648 (1956-12-01), Mecco et al.
patent: 3111357 (1963-11-01), Wirth et al.

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