Process for coloring fibers with water-insoluble polyfluoro azo dyestuffs
AssigneeProduits Chimiques Ugine Kuhlmann
InventorsJacques Pierre Edmond Pechmeze, Robert Frederic Michel Sureau
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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.
Claims4
Process for the coloration of fibers based on polyester, said process comprising coloring said fiber with a dyestuff of the formula:
- ##STR7## 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, B represents an aromatic radical, m is 0 or 1 and A represents a benzene or hetercyclic radical, the residues A and B being unsubstituted or substituted by substituents which do not give rise to an acid dissociation. --
Dependencies are inferred from the claim text.