Navy-blue dye mixtures of fiber reactive azo dyes

摘要

The present invention relates to dye mixtures comprising one or more disazo dyes conforming to the formula (1) and one or more monoazo dyes conforming to the formula (2) wherein R1, R2, R3, and R4, identical to or different from each other, are each hydrogen, methyl, ethyl, methoxy, ethoxy, sulfo or carboxy, R5, R6, R7 and R8, identical to or different from each other, are each hydrogen, methyl, ethyl, methoxy, ethoxy or sulfo, Y is in each instance independently of the others vinyl, beta -chloroethyl, beta -thiosulfatoethyl or beta -sulfatoethyl, a, b, c and d are the number 0 or 1, wherein at least one of b and c is the number 1 and wherein, if b is 1, a is 0 and if c is 1, d is 0, M is hydrogen or an alkali metal, Z1 and Z2 are independently selected from the fiber-reactive groups of the formulae (3a), (3b), (3c), (3d), and (3e). where Q is defined as given in claim 1, methods for preparing said dye mixtures and methods for dyeing and printing hydroxy-and/or carboxamido-containing fiber materials using said dye mixtures.