Black reactive dye compsn. suitable for discharge printing e.g. on cotton - contains bis:sulphato-ethyl-sulphonyl-phenyl-azo-amino-naphthol-di:sulphonic acid and mono:azo reactive dyes

摘要

Black reactive dye compsn. contains: (a) the black disazo reactive dye 2,7-bis(4-(2-sulphatoethylsulphonyl)phenylazo)-8-amino-1-hydroxynaphthalene-3,6-disulphonic acid or formula (I); (b) a monoazo reactive dye of formula (II); and (c) monoazo reactive dye(s) of formula (III) and/or (IV); X = -CH=CH2 or -CH2CH2W; W = a labile gp.; Y = H, OH, NH2 or amino deriv.; P, Q = H, Me, Et, n-Pr, NH2 or amino deriv.; and Z = Me, Et, n-Pr or COOH.