Orange dye mixtures of fiber-reactive azo dyes and use thereof for dyeing material containing hydroxy- and/or carboxamido groups

摘要

The dye mixture comprises monoazo dye stuffs in a weight ratio ranging within 75:25-25:75. The dye mixture comprises monoazo dye stuffs of formula (I) and monoazo dye stuffs of general formula (II) in a weight ratio ranging within 75:25- 25:75. D1,D2 = radical of benzene or naphthalene nucleus; R1 - R4 = H, methyl, ethyl, methoxy, ethoxy, sulfo or carboxy groups; Y1,Y2 = vinyl or ethyl substituted in beta position; M = H or alkali metal. when D1, D2 or both are benzene or naphthalene radical then R1-R4 = hydrogen, sulfo or carboxy groups, preferably hydrogen or sulfo. The alkali metal is lithium, sodium or potassium (disclosed). A substituent which is eliminated by the action of alkali is present in the beta position of vinyl or ethyl group. An Independent claim is also included for the dyeing process. The dye mixture is applied and fixed to a hydroxy or carboxamide content fiber material, by heating or using alkali.