Mixtures of reactive dyes and their use in a method for trichromatic dyeing or printing

Abstract

Dye mixtures, comprising at least one dye of formula and at least one dye from the group of formulae wherein B1, B2 and B3 are each independently of the others an organic bridging member, Q1 is C1-C4alkyl, halogen or a radical —SO2-Z, Q2 and Q3 are each independently of the other C1-C4alkoxy, Q4 is C1-C4alkoxy, C1-C4alkyl, halogen or sulfo Q5 is C1-C4alkoxy, C1-C4alkyl, C1-C4alkanoylamino, ureido, halogen or sulfo, R1, R2, R3, R4, R5, R6, R7, R8 and R9 are each independently of the others hydrogen or unsubstituted or substituted C1-C4alkyl, k and q are each independently of the other the number 0 or 1, n and p are each independently of the other the number 0, 1 or 2, m is the number 0, 1, 2 or 3, t is the number 1, 2 or 3, X1, X2, X3, X4, X5 and X6 are each independently of the others halogen, and T1, T2 and T3 are each independently of the others a non-fiber-reactive substituent or a fiber-reactive radical of formula wherein (R10)0-2 denotes from 0 to 2 identical or different substituents from the group halogen, C1-C4alkyl, C1-C4alkoxy and sulfo, Z is vinyl or a radical —CH2—CH2—U and U is a group removable under alkaline conditions, Q is a group —CH(Hal)-CH2-Hal or —C(Hal)=CH2, and Hal is halogen, are suitable especially for the dichromatic or trichromatic dyeing or printing of cellulosic fiber materials and yield dyeings or prints having good reproducibility and good all-round fastness properties.

Dependencies are inferred from the claim text.