Reactive dye mixtures giving intense colors on hydroxy and carbonamide group-containing fibers in presence of reduced amounts of salts comprise sulfonated disazo dyes and sulfonated monoazo dyes

摘要

A reactive dye mixture comprises (A) a sulfonated disazo dye and (B) a sulfonated monoazo dye. A reactive dye mixture comprises: (A) a sulfonated disazo dye of formula (I); and (B) a sulfonated monoazo dye of formula (II); D1 and D2 = amidophenyl group of formula (III); R1 = H, 1-4C alkyl or optionally substituted aryl; R2 and R3 = H, 1-4C alkyl or alkoxy, OH, sulfo, carboxy, amido or halogen; A = phenylene group C6H2R4R5, a naphthylene group of formula (IV) or a polymethylene group -(CR8R9)k-; R4 - R7 = as for R2 and R3; R8 and R9 = as for R2 and R3 but with CN in place of sulfo and carboxy; k = 1 or higher ; X1 = H, SO2Z or a phenyl group C6H2R10R11X2; R10 and R11 = as for R2 and R3; X2 = as for X1 or a naphthyl group of formula (V); R12 and R13 = as for R2 and R3; X3 = as for X1; Z = CH:CH2, -CH2CH2Z1 or OH; Z1 = OH or an alkali-dissociatable group; M = H, an alkali metal or an alkaline earth metal equivalent; D3 = as for D1 and D2 or an aminosulfophenyl group of formula (VI); R21 and R22 = as for R2 and R3; R23 = H, optionally substituted 1-4C alkyl, 1-4C alkoxysulfo, halogen or carboxy-substituted phenyl ; Z21 = an N-heterocyclic fiber-reactive group of formula (VII) - (IX); V = F or Cl; U1 and U2 = H, F or Cl; Q1 and Q2 = Cl, F, cyanamido, OH, 1-6C alkoxy, phenoxy, sulfophenoxy, mercapto, 1-6C alkylmercapto, pyridino, carboxy- or carbamoyl-pyridino, -N((R2')(W-SO2Z) or -N((R3')((R4'); (R2') = H, 1-6C alkyl, sulfo(1-6C)alkyl or phenyl, the phenyl being optionally substituted by 1-4C alkyl or alkoxy, sulfo, halogen, carboxy, acetamido or ureido; (R3') and (R4') = as for (R2') or an aminophenyl group of formula (X) or form a cyclic system of formula -(CH2)DJ- or -(CH2)2-E-(CH2)2-; R24 - R26 = 1-4C alkyl or hydroxyalkyl; B = an anion equivalent such as hydrogensulfate, sulfate, F, Cl, Br, (di)hydrohenphosphate, PO4, OH or acetate; j = 4 or 5; E = O, S, sulfo,-N(R5'); R5' = 1-6C alkyl; W = phenylene (optionally once or twice substituted by 1-4C alkyl or alkoxy, carboxy, sulfo, Cl or Br), 1-4C alkylene-arylene, 2-6C alkylene (optionally interrupted by O, S, sulfo, amino, carbonyl or carbonamido), phenylene-CONH-phenylene (optionally substituted by 1-4C alkyl or alkoxy, OH, sulfo, carboxy, amido, ureido or halogen) or naphthylene (optionally substituted by 1 or 2 sulfo groups); n = 1 or 2; and Y = OH or amino optionally substituted by1-4C alkyl or aryl; and with the proviso that when A = -(CR8R9)k-, then R1 = optionally substituted aryl. An Independent claim is also included for preparation of the dye mixture.