Use of 1-amino-2,7-di-5'-((2'-chloro-4'-substituted amino-1,3,5- triazin- 6-ylamino)-2'-sulfophenylazo-8-hydroxynaphthalene-3,6- disulfonic acids for dyeing and printing

摘要

Compound of the formula ##STR1## in which both groups --NR.sub. 1 R.sub. 2 are identical;PPR.sub.1 is C.sub.2-4 alkyl, substituted by one or two hydroxy groups and salts thereof,P PR.sub.2 is hydrogen, C.sub.2-4 hydroxyalkyl or --CH.sub.2 CH.sub.2 CN, provided that when R.sub.2 is --CH.sub.2 CH.sub.2 CN then R.sub.1 can only be --CH. sub.2 CH.sub.2 OCH.sub.2 CH.sub.2 OH,PPand mixtures of such compounds, which compounds are in free acid or salt form, and are useful for dyeing or printing hydroxy group- or nitrogen- containing organic substrates, especially leather and textiles containing or consisting of natural or synthetic polyamides or of natural or regenerated cellulose; the most preferred substrate is textile material containing or consisting of cotton.