Patent ID: 7060114

Claim:
A reactive dye mixture comprising one or more dyes of the formula (I) and one or more dyes of the formula (II) or one or more dyes of the formula (III) wherein: at least one of D 1 and D 2 is a group of the formula (1) wherein R 1 is hydrogen, (C 1 –C 4 )-alkyl, aryl or a substituted aryl radical; R 2 and R 3 are independently are 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; and D 1 or D 2 may be a phenyl group of the formula (5) 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 ; and D 1 or D 2 may be a naphthyl group of the formula (6) 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 and D 4 independently have one of the meanings of D 1 or D 2 or each a group of the formula (7) or (8) wherein R 22 and R 23 independently have one of the meanings of R 2 and R 3 ; R 21 is hydrogen, (C 1 –C 4 )-alkyl, unsubstituted or (C 1 –C 4 )-alkyl-substituted phenyl, (C 1 –C 4 )-alkoxy-substituted phenyl, sulfo-substituted phenyl, halogen-substituted phenyl or carboxyl-substituted phenyl; and Z 21 is a heterocyclic reactive radical, and Z is as defined above; R 24 , R 25 and R 26 are each independently (C 1 –C 4 )-alkyl or (C 1 –C 4 )-hydroxyalkyl; B − is the equivalent of an anion; R 31 , R 32 and R 33 are independently hydrogen, (C 1 –C 4 )-alkyl, (C 1 –C 4 )-alkoxy, carboxyl, halogen, (C 1 –C 4 )-alkylcarbonylamino, benzoylamino, ureido; Z 31 has one of the meanings of Z 21 ; a, b and c are independently 0 or 1; f and r are independently 0, 1 or 2; and t is 0, 1, 2 or 3; when A is a group of the general formula (4), R 1 is aryl or substituted aryl; and the reactive dye of the general formula (I) contains at least one —SO 2 -Z group.