Azo dyes, processes for their preparation and their use

Abstract

Azo dyes of the formula ##STR1## in which R.sub.1, R.sub.2, R.sub.3, R.sub.4 and R.sub.5 independently of one another are hydrogen, C.sub.1 -C.sub.4 alkyl, C.sub.1 -C.sub.4 alkoxy or halogen, R.sub.6 is hydrogen or C.sub.1 -C.sub.4 Alkyl, X is --C.sub.1 -C.sub.4 alkylene-O--C.sub.1 -C.sub.4 alkyl and Y is hydrogen; unsubstituted or hydroxy- or C.sub.1 -C.sub.4 alkoxy-substituted C.sub.1 -C.sub.8 alkyl, C.sub.2 -C.sub.4 -alkonoyl or C.sub.1 -C.sub.4 alkoxycarbonyl; a radical of the formula --CH.sub.2 --CH.dbd.CH.sub.2 ; C.sub.1 -C.sub.4 alkylsulfonyl; or unsubstituted or C.sub.1 -C.sub.4 alkyl-, C.sub.1 -C.sub.4 alkoxy- or halogen-substituted phenylsulfonyl, produce dyeings with good fastness properties on fibre materials containing nitrogen or containing hydroxyl groups.

Dependencies are inferred from the claim text.