REACTIVE DYES, PROCESS FOR PREPARING THEM AND THEIR APPLICATION IN THE TEXTILE INDUSTRY

摘要

The invention relates to the dyestuff industry. It relates to reactive dyes of formula: /P P QN (R) -E 1 -N = NDN = N-E2 where Q represents a radical reactive with respect to cellulose, R represents an atom hydrogen or a C1-4 alkyl radical optionally substituted by OH, CN, SO3 H or OSO3 H, E1 represents an optionally substituted 1,4-phenylene or 1,4-naphthylene radical, D represents a 2,5- radical disulfo-1,4-phenylene and E2 represents an optionally substituted 1-N-phenylaminonaphthyl radical. These dyes are preferred for dyeing cellulosic textile materials.