Black dye mixtures of fiber-reactive azo dyes, methods for their preparation and use thereof for dyeing hydroxy-and/or carboxamido-containing fiber material

A dye mixture comprising a disazo dye conforming to the general formula (1),

• and one or more monoazo dyes conforming to the general formula (2).
• and a dye of the general formula (3),
• wherein
• Y is in each instance, independently of one another, vinyl or is ethyl which is substituted in the μ-position by a substituent which can be eliminated by the action of an alkali, fanning the vinyl group, thiosulfato, sulfato, elkmnoyloxy of 2 to 5 carbon atoms, phosphate, sulfobenzoyloxy and p-toluylsulfonyloxy;
• M is hydrogen or an alkali metal,
• R1 is hydrogen methyl, or methoxy;
• R2, R3, R4, R5, R6 has one of the meanings of R1
• L1 is a fiber-reactive group of the formulae (4a), (4b), (4c), (4d), (4e), (4f), or (4g)
• where
• Q is chloro, fluoro, cyanamido, hydroxy, alkoxy of 1 to 4 carbon atoms phenoxy, sulfophenoxy, pyridino, carboxypyridino, carbamoylpyridino or a group of the general formulae (5a) or (5b).
• in which
• R7 is hydrogen, alkyl of 1 to 4 carbon atoms, alkoxy of 1 to 4 carbon atoms, sulfoalkyl of 1 to 4 carbon atoms phenyl which may be substituted 1 to 2 substituents selected from the group consisting of chlorine, bromine, methyl, ethyl, methoxy, sulfo, acetamido, ureido and carboxy;
• R8 has one of the meanings of R7;
• R9 and R10 have one of the meanings given for R7 or (5a) is a group of the general formula (6)
• in which
• T is methylene, oxygen, sulfur, sulfo, NR11 or a chemical bond
• R11, R12 have one of the meanings of R7
• W is arylene, alkylene or alkylene-arylene, each unsubstituted or substituted, wherein the alkylene moieties being those of 1 to 6 carbon atoms, or being of 2 to 6 carbon atoms, if interrupted by a hetera group, arylene, the substituents of said arylene being 1 or 2 substituents selected from the group consisting of alkyl of 1 to 4 carbon atoms, alkoxy of 1 to 4 carbon atoms, carboxy, sulfo and chlorine;
• Y is defined as above and,
• m,n,o,p is 0 or 1
• W2 has one of the meanings of W1
• L2, L has one of the meanings of L1.