Dye mixtures comprising 1:2 chromium complex dyes, and 1:2 chromium complex dyes

A dye mixture which comprises at least one 1:2 chromium complex dye of the formula (1) ##STR59## in which R.sub.1 is hydrogen or nitro,

• Ka is a cation and
• R.sub.2 is hydrogen, C.sub.1 -C.sub.4 alkyl or C.sub.1 -C.sub.4 alkoxy.
• R.sub.3 is C.sub.2 -C.sub.4 hydroxyalkoxy or a C.sub.1 -C.sub.4 alkoxy radical bonded in the 4-position, together with at least one 1:2 chromium or 1:2 cobalt complex dye of two identical or two different azo compounds from the group consisting of compounds of the formulae (2), (3) and (4) ##STR60## in which R.sub.6, R.sub.7, R.sub.8, R.sub.9, R.sub.10, R.sub.11, R.sub.12, R.sub.13 and R.sub.14 independently of one another are hydrogen, C.sub.1 -C.sub.4 alkyl, C.sub.1 -C.sub.4 alkoxy, C.sub.2 -C.sub.4 alkanoylamino, halogen, sulfo, hydroxyl, nitro or sulfamoyl, or N--C.sub.1 -C.sub.4 alkylsulfamoyl which is unsubstituted or further substituted in the alkyl part by hydroxyl or C.sub.1 -C.sub.4 alkoxy, or together with at least one 1:2 cobalt complex dye of the formazan compound of the formula (5) ##STR61## in which R.sub.15 and R.sub.16 independently of one another are hydrogen or C.sub.1 -C.sub.4 alkyl which is unsubstituted or substituted by hydroxyl or C.sub.1 -C.sub.4 alkoxy,
• m is the number 1,2 or 3 and the phenyl radicals of the compound of the formula (5) contain no further substituents or are further substituted by C.sub.1 -C.sub.4 alkyl, C.sub.1 -C.sub.4 alkoxy, C.sub.2 -C.sub.4 alkanoylamino. C.sub.1 -C.sub.4 alkylsulfonyl, C.sub.1 -C.sub.4 hydroxyalkylsulfonyl, halogen, sulfo, hydroxyl, carboxyl or nitro,
• or together with at least one anthraquinone dye of the formula (6) ##STR62## in which Y.sub.1 is C.sub.1 -C.sub.4 alkyl;
• phenyl which is unsubstituted or substituted by C.sub.1 -C.sub.4 alkyl, C.sub.1 -C.sub.4 alkoxy, halogen or sulfo;
• phenyl-C.sub.1 -C.sub.8 alkyl, in which the phenyl radical contains no further substituents or is substituted by C.sub.1 -C.sub.4 alkyl, C.sub.1 -C.sub.4 alkoxy, halogen, sulfo, benzoylaminomethyl, chloroacetyl aminomethyl or acryloylaminomethyl;
• cyclohexyl which is unsubstituted or substituted by C.sub.1 -C.sub.4 alkyl or sulfobenzyl;
• or 1,2,3,4-tetrahydronaphthyl which is substituted by sulfo, and
• Z.sub.1 is defined as above for Y.sub.1, or is a radical of the formula ##STR63## in which R.sub.17 is hydrogen, C.sub.1 -C.sub.4 alkyl, C.sub.1 -C.sub.4 alkoxy or halogen and
• R.sub.18 is chloroacetylaminomethyl or acryloylaminomethyl.