Fiber-reactive copper complex disazo dyes

A dye of the formula (I)

• in which
• R1 and R2 independently of one another are hydrogen, (C1-C4)-alkyl, (C1-C4)-alkoxy, hydroxyl, sulfo, carboxyl, cyano, nitro, amido, or ureido or are a group of the formula —SO2—Z1, where
• Z1 is —CH═CH2, —CH2CH2G or hydroxyl, and
• G is hydroxyl or an alkali-detachable group;
• R3 is (C1-C4)-alkyl;
• (C1-C4)-alkyl substituted by sulfo, carboxyl, halogen, hydroxyl, amino or acetamido;
• phenyl;
• or phenyl substituted by (C1-C4)-alkyl, (C1-C4)-alkoxy, sulfo, halogen, carboxyl, acetamido or ureido;
• R4 is hydrogen or has one of the definitions of R3;
• f is 0 or 1;
• D1 is a group of the formula (1)
• in which
• R5 and R6 independently of one another are hydrogen, (C1-C4)-alkyl, (C1-C4)-alkoxy, hydroxyl, sulfo, carboxyl, cyano, nitro, amido, ureido or halogen;
• and
• X1 is hydrogen or a group of the formula —SO2—Z2, where Z2 has one of the definitions of Z1;
• D1 is a group of the formula (2)
• in which
• R7 and R8 independently of one another are hydrogen, (C1-C4)-alkyl, (C1-C4)-alkoxy, hydroxyl, sulfo, carboxyl, cyano, nitro, amido, ureido or halogen;
• and
• X2 has one of the definitions of X1;
• or
• D1 is a group of the formula (3)
• in which
• R9 and R10 independently of one another have one of the definitions of R5 and R6;
• R11 is hydrogen, (C1-C4)-alkyl, or phenyl which is unsubstituted or substituted by (C1-C4)-alkyl, (C1-C4)-alkoxy, sulfo, halogen or carboxyl;
• and
• Z3 is a group of the formula (4) or (5) or (6)
• in which
• V is fluorine or chlorine;
• U1 and U2 independently of one another are fluorine, chlorine or hydrogen;
• and
• Q1 and Q2 independently of one another are chlorine, fluorine, cyanamido, hydroxyl, (C1-C6)-alkoxy, phenoxy, sulfophenoxy, mercapto, (C1-C4)-alkylmercapto, pyridino, carboxypyridino or carbamoylpyridino, or are a group of the formula (7) or (8)
• in which
• R12 is hydrogen, (C1-C4)-alkyl, sulfo-(C1-C4)-alkyl, unsubstituted phenyl or phenyl which is substituted by (C1-C4)-alkyl, (C1-C4)-alkoxy, sulfo, halogen, carboxyl, acetamido or ureido;
• R13 and R14 independently of one another have one of the definitions of R12 or together form a group of the formula —(CH2)j— where j is 4 or 5, or a group of the formula —(CH2)2-E-(CH2)2—, in which E is oxygen, sulfur, sulfonyl or —N((C1-C4)-alkyl)-;
• W is unsubstituted phenylene;
• phenylene substituted by 1 or 2 substituents selected from the group consisting of (C1-C4)-alkyl, (C1-C4)-alkoxy, carboxyl, sulfo, chlorine, and bromine;
• unsubstituted naphthylene;
• naphthylene substituted by 1 or 2 sulfo groups;
• (C1-C4)-alkylene-arylene;
• (C1-C4)-alkylene-arylene which is interrupted by oxygen, sulfur, sulfonyl, —NH—, carbonyl, —CONH— or —CON(CH3)—;
• (C2-C6)-alkylene;
• (C2-C6)-alkylene which is interrupted by oxygen, sulfur, sulfonyl, —NH—, carbonyl, —CONH— or —CON(CH3)—;
• phenylene-CONH-phenylene;
• or phenylene-CONH-phenylene, where one or both phenylene groups are substituted each by 1 or 2 substituents selected from the group consisting of (C1-C4)-alkyl, (C1-C4)-alkoxy, hydroxyl, sulfo, carboxyl, amido, ureido, and halogen;
• and
• Z4 has one of the definitions of Z1;
• or
• D1 is a group of the formula (9)
• in which
• R15 is hydrogen, (C1-C4)-alkyl, aryl or an aryl substituted by one, two or three mutually independent groups from the selected from the group consisting of (C1-C4)-alkyl, (C1-C4)-alkoxy, hydroxyl, sulfo, carboxyl, amido, and halogen;
• R16 and R17 independently of one another are hydrogen, (C1-C4)-alkyl, (C1-C4)-alkoxy, hydroxyl, sulfo, carboxyl, cyano, nitro, amido, ureido or halogen;
• A is a group of the formula (10)
• in which
• R18 and R19 independently of one another are hydrogen, (C1-C4)-alkyl, (C1-C4)-alkoxy, hydroxyl, sulfo, carboxyl, cyano, nitro, amido, ureido or halogen;
• or
• A is a group of the general formula (11)
• in which
• R20 and R21 independently of one another are hydrogen, (C1-C4)-alkyl, (C1-C4)-alkoxy, hydroxyl, sulfo, carboxyl, cyano, nitro, amido, ureido or halogen;
• or
• A is a group of the formula (12)
• —(CR22R23)k— (12)
• in which
• k is an integer greater than 1 and
• R22 and R23 independently of one another are hydrogen, (C1-C4)-alkyl, (C1-C4)-alkoxy, hydroxyl, cyano, amido, halogen or aryl;
• and
• X3 has one of the definitions of X1;
• and
• M is hydrogen, an alkali metal or one equivalent of an alkaline earth metal;
• and the dye of the formula (I) comprises at least one fiber-reactive group selected from the group consisting of —SO2—Z1, —SO2—Z2 and Z3.