Black dye mixtures of fiber-reactive AZO dyes and use thereof for dyeing material containing hydroxy- and/or carboxamido groups

A dye mixture comprising one or more reactive dyes of the general formula (I)

• 152
• and one or more reactive dyes of the general formula (II),
• 153
• where
• D1 and D2 each represent a group of the general formula (1)
• 154
• wherein
• R1 is hydrogen, (C1-C4)-alkyl, aryl or phenyl substituted by one, two or three independent groups selected from the group consisting of (C1-C4)-alkyl, (C1-C4)-alkoxy, hydroxyl, sulfo, carboxyl, amido and halogen;
• R2 and R3 are independently hydrogen, (C1-C4)-alkyl, (C1-C4)-alkoxy, hydroxyl, sulfo, carboxyl, amido or halogen;
• and
• A is a phenylene group of the general formula (2)
• 155
• where
• R4 and R5 are independently hydrogen, (C1-C4)-alkyl, (C1-C4)-alkoxy, hydroxyl, sulfo, carboxyl, amido or halogen;
• or A is a naphthylene group of the general formula (3)
• 156
• where
• R6 and R7 are independently hydrogen, (C1-C4)-alkyl, (C1-C4)-alkoxy, hydroxyl, sulfo, carboxyl, amido or halogen;
• or A is a polymethylene group of the general formula (4)
• —(CR8R9)k— (4)
• where
• k is an integer greater than 1 and
• R8 and R9 are independently hydrogen, (C1-C4)-alkyl, (C1-C4)-alkoxy, hydroxyl, cyano, amido, halogen or aryl;
• and
• X1 is hydrogen or —SO2—Z;
• or D1 and D2 each represent a phenyl group of the general formula (5)
• 157
• where
• R10 and R11 are independently hydrogen, (C1-C4)-alkyl, (C1-C4)-alkoxy, hydroxyl, sulfo, carboxyl, amido or halogen;
• and
• X2 has one of the meanings of X1;
• or D1 and D2 each represent a naphthyl group of the general formula (6)
• 158
• where
• R12 and R13 are independently hydrogen, (C1-C4)-alkyl, (C1-C4)-alkoxy, hydroxyl, sulfo, carboxyl, amido or halogen;
• X3 has one of the meanings of X1;
• Z is —CH═CH2, —CH2CH2Z1 or hydroxyl,
• where
• Z1 is hydroxyl or an alkali-detachable group;
• M is hydrogen or an alkali metal;
• D21 has one of the meanings of D1 or D2 or is a group of formula (7) or (8)
• 159
• where
• R22 and R23 have independently of one another one of the meanings of R2 and R3;
• R24 is hydrogen, (C1-C4)-alkyl, phenyl which is unsubstituted or substituted by (C1-C4)-alkyl, (C1-C4)-alkoxy, sulfo, halogen, carboxy;
• and
• Z22 is a group of the general formula (9) or (10) or formula (11)
• 160
• wherein
• V is fluorine or chlorine;
• U1 and U2 are independently of one another fluorine, chlorine or hydrogen;
• and
• Q1 and Q2 are independently of one another chlorine, fluorine, cyanamide, hydroxy, (C1-C6)-alkoxy, phenoxy, sulfophenoxy, mercapto, (C1-C6)-alkylmercapto, pyridino, carboxypyridino, carbamoylpyridino, or a group of the general formula (12) or (13)
• 161
• where
• R2′ is hydrogen, (C1-C6)-alkyl, sulfo-(C1-C6)-alkyl, phenyl which is unsubstituted or substituted by at least one of the following groups:
• (C1-C4)-alkyl, (C1-C4)-alkoxy, sulfo, halogen, carboxy, acetamido or ureido;
• R3′ and R4′ have independently of one another one of the meanings of R2′, or are a group of the general formula (8), or form a cyclic ring system, such as —(CH2)j— with being 4 or 5, or alternatively —(CH2)2—E—(CH2)2— with E being oxygen, sulfur, sulfo, —NR5′— with R5′ being (C1-C6)-alkyl;
• W is phenylene which is unsubstituted or substituted by 1 or 2 substituents selected from the group of (C1-C4)-alkyl, (C1-C4)-alkoxy, carboxy, sulfo, chlorine and bromine;
• or is (C1-C4)-alkylene-arylene;
• or (C2-C6)-alkylene, which is optionally interrupted by oxygen, sulfur, sulfono, amino, carbonyl or carbonamido;
• or is phenylene-CONH-phenylene which is unsubstituted or substituted by (C1-C4)-alkyl, (C1-C4)-alkoxy, hydroxyl, sulfo, carboxyl, amido, ureido or halogen, or naphthylene which is unsubstituted or substituted by one or two sulfo groups;
• and
• Z is as defined above;
• R25, R26 and R27 are independently (C1-C4)-alkyl or (C1-C4)-hydroxyalkyl;
• B− is an equivalent for an anion;
• R21 has one of the meanings of R24;
• Z21 is hydrogen, (C2-C6)-acyl, aroyl which is unsubstituted or substituted by (C1-C4)-alkyl, (C1-C4)-alkoxy, sulfo, carboxyl or halogen, or has one of the meanings of Z22;
• and
• n is 0 or 1;
• in the general formula (I) at least one of D1 and D2 is a group of the general formula (1), where, if A is a group of the general formula (4), R1 is aryl or substituted aryl and where the reactive dye of the general formula (I) contains at least one —SO2—Z group.