Process for coloring fibers with water-insoluble polyfluoro azo

Details Process for coloring fibers with water-insoluble polyfluoro azo Process for coloring fibers with water-insoluble polyfluoro azo

1975-11-04

1977-08-23

Schofer, Joseph L.

Bleaching and dyeing; fluid treatment and chemical modification

Treatment of hides, skins, feathers and animal tissues

Tanning

260152, 260157, 260163, 260186, 260190, 260191, C09B 2700, D06P 102

Patent

active

040437515

ABSTRACT:
Process for coloration of synthetic or artificial fibers with water-insoluble dyes stuffs of the formula: ##STR1## IN WHICH R represents hydrogen, alkyl or alkoxy, R.sub.1 represents hydrogen, chlorine, alkyl, alkoxy or acylamino or a diene grouping linked to the benzene nucleus to form a naphthalene nucleus, R.sub.2 represents hydrogen, alkyl, hydroxyalkyl or cyanoethyl, n represents 2, B represents an aromatic radical, m is 0 or 1 and A represents a benzene or heterocyclic radical, the residues A and B being unsubstituted or substituted by substituents which do not give rise to an acid dissociation.

REFERENCES:
patent: 2516106 (1950-07-01), Dickey
patent: 2516302 (1950-07-01), Dickey
patent: 2516303 (1950-07-01), Dickey
patent: 3017421 (1962-01-01), Cohen

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