Fibre-reactive formazan dyes containing beta -halogenethyl or vinylsulfonyl-alkanoylamino fiber-reactive groups

摘要

The fibre-reactive formazan dyes of the formula <IMAGE> (1) where X is C1-C4 alkyl, C1-C4 alkoxy, halogen, cyano or nitro, Y is beta -haloethyl or vinyl, m is 1, 2 or 3, n is 3 or 4, p is 0, 1 or 2 and q is 0 or 1, produce dyeings having good fastness properties on nitrogen-containing or hydroxyl-containing fibre materials.