Process for continuously dyeing in the gel state fiber material

Details Process for continuously dyeing in the gel state fiber material Process for continuously dyeing in the gel state fiber material

1982-10-14

1984-05-01

Clingman, A. Lionel

Bleaching and dyeing; fluid treatment and chemical modification

Gelled fiber-dyeing process or product

8539, 8657, 8927, C09B 1110, D06P 141

Patent

active

044459041

ABSTRACT:
A process for the continuous dyeing of fiber material of one or more acid-modified polymers or copolymers of acrylonitrile in the gel state, said fiber material having been produced by wet spinning from a spinning solution containing one or more organic solvents, which process comprises dyeing the fiber material with a solution of a carbinol base or anhydro base of a carboxyl- or sulfo-free N-arylated triarylmethane dyestuff, a carboxyl- or sulfo-free N-arylated diarylindolylmethane dyestuff, a carboxyl- or sulfo-free N-arylated diaryloxazine dyestuff, a carboxyl- or sulfo-free N-arylated diarylxanthene dyestuff, or a carboxyl- or sulfo-free N-arylated diarylazine dyestuff in a dye bath containing water and the organic spinning solvent or solvents.

REFERENCES:
patent: 3787182 (1974-01-01), Eigenmann et al.
patent: 4020037 (1977-04-01), Hahnke et al.
patent: 4059403 (1977-11-01), Wolf et al.
patent: 4266940 (1981-05-01), Blackburn et al.

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