Dyeing additives

Details Dyeing additives Dyeing additives

1974-04-22

1976-05-18

Jacobs, Lewis T.

Bleaching and dyeing; fluid treatment and chemical modification

Treatment of hides, skins, feathers and animal tissues

Depilating

8 73, 8172R, 8177AB, D06P 504

Patent

active

039574334

ABSTRACT:
Dyeing shaped articles made of polyacrylonitrile, copolymers or blends thereof, with cationic dyestuffs characterised in that the dyeing is carried out in the presence of a quaternary ammonium compound of the formula: ##EQU1## wherein R.sup.1, R.sup.2 and R.sup.3 represent alkyl or alkenyl groups and R.sup.4 represents an alkyl group or hydrogen, at least one of said groups R.sup.1, R.sup.2, R.sup.3 and R.sup.4 having at least eight and not more than eighteen carbon atoms and the remainder from 1 to 4 carbon atoms, X represents an anion, Y represents hydrogen or methyl and n is zero or an average of from 1-30.

REFERENCES:
patent: 3764262 (1973-10-01), Hildebrand et al.

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