Process for the production of space-dyed effects on acrylic yarn

Details Process for the production of space-dyed effects on acrylic yarn Process for the production of space-dyed effects on acrylic yarn

1975-09-23

1977-02-22

Kight, III, John

Bleaching and dyeing; fluid treatment and chemical modification

Treatment of hides, skins, feathers and animal tissues

Tanning

8 14, 8166, 8175, D06P 512, D06P 522

Patent

active

040090019

ABSTRACT:
A process for producing space-dyed acrylic yarns is disclosed, wherein an acrylic yarn containing at least 50% by weight of basic-dyeable acrylic fibers has up to 80% the length thereof contacted with a resisting amount of an aqueous solution of a preferably divalent metal cation at a pH of about 2.5 to about 8.0. The yarn is then bulked by steaming to fix the ion on the fibers, and thereafter the yarn is dyed, with at least one basic dye, and the treated areas of the yarn resist the basic dye to produce a space-dyed appearance.
The products of the present process may be used in knit and woven goods and the like whenever a space-dyed appearance is desired.

REFERENCES:
patent: 2336341 (1943-12-01), Bock et al.
patent: 3222118 (1965-12-01), Coleman
patent: 3869250 (1975-03-01), Wegmuller et al.
patent: 3926548 (1975-12-01), Moriyama et al.

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