Azo dye mixtures and their use
AssigneeCiba-Geigy Corporation
InventorsJean-Marie Adam, Peter Sutter, Francine Casi
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Abstract
The invention relates to dye mixtures consisting of (a) 0-100% by weight of at least one dye mixture comprising a compound of the formula ##STR1## and a compound of the formula ##STR2## (b) 0-100% by weight of at least one dye mixture comprising a compound of the formula ##STR3## and a compound of the formula ##STR4## in which the variables are as defined in the claims and the sum of (a) and (b) is 100% by weight. The dye mixtures according to the invention are suitable for dyeing or printing hydroxyl-containing or nitrogen-containing fibre materials and give dyeings or prints having good all-round fastness properties.
Claims12
A dye mixture consisting of
- (a) 0-100% by weight of at least one dye mixture consisting essentially of a compound of the formula ##STR28## in which K.sub.1 and K.sub.2 independently of one another are each the radical of a coupling component of the benzene or naphthalene series or of the heterocyclic series,
- X.sub.1 and X.sub.2 are each independently of the other a bridging member of the formula --SO.sub.2 --O--, --SO.sub.2 --N(R.sub.9)--, --COO-- or --CO--N(R.sub.10)-- in which R.sub.9 and R.sub.10 independently of one another are each hydrogen or C.sub.1 -C.sub.4 alkyl,
- R.sub.1, R.sub.2, R.sub.3, R.sub.4, R.sub.5, R.sub.6, R.sub.7 and R.sub.8, independently of one another are each hydrogen, C.sub.1 -C.sub.6 alkyl, C.sub.1 -C.sub.4 alkoxy, halogen, sulfo, unsubstituted or halogen-substituted C.sub.2 -C.sub.4 alkanoylamino or an unsubstituted or halogen-substituted group --NHCO--C.sub.2 -C.sub.4 alkylene and Y.sub.1 is a direct bond, straight-chain or branched C.sub.1 -C.sub.6 alkylene or C.sub.5 -C.sub.8 cycloalkylene, and a compound of the formula ##STR29## in which K.sub.3 independently is as defined above for K.sub.1 ;
- X.sub.3 independently is as defined above for X.sub.1 ;
- R.sub.11, R.sub.12, R.sub.13 and R.sub.14 independently of one another are each as defined above for R.sub.1, and R.sub.15 is C.sub.1 -C.sub.12 alkyl, C.sub.5 -C.sub.8 cycloalkyl or halogen, in which the dye mixture of the dyes of formulae (1) and (2) contain at least one sulfo group, and wherein the dyes of formulae (1) and (2) are present in a weight ratio of 1:99 to 99:1, and
- (b) 0-100% by weight of at least one dye mixture consisting essentially of a compound of the formula ##STR30## in which R.sub.16, R.sub.17, R.sub.18 and R.sub.19 independently of one another are each hydrogen, C.sub.1 -C.sub.6 alkyl, C.sub.1 -C.sub.4 alkoxy, halogen, unsubstituted or halogen-substituted C.sub.2 -C.sub.4 alkanoylamino or an unsubstituted or halogen-substituted group NHCO--C.sub.2 -C.sub.4 alkylene and Y.sub.2 is a direct bond, straight-chain or branched C.sub.1 -C.sub.6 alkylene or C.sub.5 -C.sub.8 cycloalkylene, and a compound of the formula ##STR31## in which R.sub.20 is as defined above for R.sub.16, and R.sub.21 is C.sub.1 -C.sub.12 alkyl, C.sub.5 -C.sub.8 cycloalkyl, C.sub.2 -C.sub.4 alkanoylamino or benzoylamino, and wherein the dyes of formulae (3) and (4) are present in a weight ratio of 1:99 to 99:1;
- with the proviso that the sum of (a) and (b) is 100% by weight.
Dependencies are inferred from the claim text.