Patent ID: 6962611

Claim:
A reactive dye mixture comprising one or more dyes of the formula (I) and one or more dyes of the formula (II) wherein: D 1 and D 2 are each a group of the formula (1) or formula (5) or formula (6) wherein R 1 is hydrogen, (C 1 -C 4 )-alkyl, aryl or a substituted aryl radical; R 2 and R 3 are independently hydrogen, (C 1 -C 4 )-alkyl, (C 1 -C 4 )-alkoxy, hydroxyl, sulfo, carboxyl, amido or halogen; and A is a phenylene group of the formula (2) wherein R 4 and R 5 are independently hydrogen, (C 1 -C 4 )-alkyl, (C 1 -C 4 )-alkoxy, hydroxyl, sulfo, carboxyl, amido or halogen; or a naphthylene group of the formula (3) wherein R 6 and R 7 are independently hydrogen, (C 1 -C 4 )-alkyl, (C 1 -C 4 )-alkoxy, hydroxyl, sulfo, carboxyl, amido or halogen; or a polymethylene group of the formula (4) —(CR 8 R 9 ) k — (4) wherein k is an integer greater than 1 and R 8 and R 9 are independently hydrogen, (C 1 -C 4 )-alkyl, (C 1 -C 4 )-alkoxy, hydroxyl, cyano, amido, halogen or aryl; and X 1 is hydrogen or a group of the formula —SO 2 —Z; wherein formula (5) is wherein R 10 and R 11 are independently hydrogen, (C 1 -C 4 )-alkyl, (C 1 -C 4 )-alkoxy, hydroxyl, sulfo, carboxyl, amido or halogen; and X 2 has one of the meanings of X 1 ; wherein formula (6) is wherein R 12 and R 13 are independently hydrogen, (C 1 -C 4 )-alkyl, (C 1 -C 4 )-alkoxy, hydroxyl, sulfo, carboxyl, amido or halogen; and X 3 has one of the meanings of X 1 ; Z is —CH═CH 2 , —CH 2 CH 2 Z 1 or hydroxyl, wherein Z 1 is hydroxyl or an alkali-eliminable group; and M is hydrogen, an alkali metal or one equivalent of an alkaline earth metal; D 3 has one of the meanings of D 1 or D 2 or is a group of the formula (7) wherein R 21 and R 22 independently have one of the meanings of R 2 and R 3 ; R 23 is hydrogen, (C 1 -C 4 )-alkyl, unsubstituted or (C 1 -C 4 )-alkyl-, (C 1 -C 4 )-alkoxy-, sulfo-, halogen- or carboxyl-substituted phenyl; and Z 21 is a fiber-reactive heterocyclic radical, and n is 1 or 2; and Y is hydroxyl or amino which is unsubstituted or substituted by (C 1 -C 4 )-alkyl or aryl; at least one of D 1 and D 2 is a group of the formula (1); when A is a group of the formula (4), R 1 is aryl or substituted aryl; and the reactive dye of the formula (I) contains at least one —SO 2 —Z group.