Process for spin dyeing polymers or copolymers of acrylonitrile

Details Process for spin dyeing polymers or copolymers of acrylonitrile Process for spin dyeing polymers or copolymers of acrylonitrile

1981-12-14

1983-05-10

Clingman, A. Lionel

Bleaching and dyeing; fluid treatment and chemical modification

Gelled fiber-dyeing process or product

8489, 8655, 8927, 524 92, 524 93, 524 94, 524 95, 524 99, 260154, 260155, 260156, 260157, 260158, 260159, 264 78, C09B 4410, D06P 360

Patent

active

043828019

ABSTRACT:
The invention relates to a process for spin dyeing polymers of acrylonitrile or copolymers containing predominantly acrylonitrile, which process comprises adding to the spinning solution a monocationic dye salt of the formula ##STR1## wherein D is the group of atoms necessary to close a 5-membered heterocyclic ring containing two N-atoms, or to close a 6-membered heterocyclic ring, which rings may optionally contain fused benzene rings, or is the group of atoms necessary to close a benzthiazole ring, and Q is the radical of a carbocyclic or heterocyclic aromatic coupling component, and R.sub.1 is alkyl, aralkyl or aryl. The yellowish-red transparent fibres obtained have excellent fastness properties.

REFERENCES:
patent: 4051084 (1977-09-01), Kuhlthau et al.
patent: 4160643 (1979-07-01), Gresory

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