Mixtures of fibre reactive dyes production and use thereof

A dye mixture comprising at least one dye of the formula (I),

• wherein
• V1-1 represents vinyl sulfone or ethyl sulfone, substituted in the β-position by an alkali-eliminable substituent;
• V1-2 and V1-3 independently represent hydrogen or —SO3M;
• V1-4 represents hydrogen, —SO3M, vinyl sulfone or ethyl sulfone, substituted in the β-position by an alkali-eliminable substituent;
• V1-5 represents hydrogen, (C1-C4)-alkyl, (C1-C4)-alkoxy, —SO3M, bromine or chlorine;
• V1-6 represents hydrogen, (C1-C6)-alkyl, —COOM, —COO—(C1-C4)-alkyl;
• M represents hydrogen, an alkali metal, ammonium or the equivalent of an alkaline earth metal ion;
• and at least one further dye either of the formula (II)
• where
• R2-1 to R2-4 independently represent hydrogen, —SO3M, (C1-C4)-alkyl or —COOR2-5;
• W2 represents —NR2-6D2;
• R2-5 and R2-6 independently represent hydrogen or (C1-C4)-alkyl;
• D2 represents one of the following groups:
• V2-1 and V2-2 independently represent hydrogen, —SO3M, vinyl sulfone or ethyl sulfone, substituted in the β-position by an alkali-eliminable substituent;
• V2-3 and V2-5 represent vinyl sulfone or ethyl sulfone, substituted in the β-position by an alkali-eliminable substituent;
• V2-4 and V2-6 independently represent hydrogen or —SO3M;
• and
• Hal represents halogen;
• and M is as defined above;
• or of the formula (III)
• where
• W3-1 and W3-2 independently represent hydrogen, (C1-C4)-alkyl, (C1-C4)-alkyl, substituted by —OSO3M or represent one of the following groups:
• D3-1 and D3-2 independently represent one of the following groups:
• V3-1 and V3-12 independently represent hydrogen, —SO3M, vinyl sulfone or ethyl sulfone, substituted in the β-position by an alkali-eliminable substituent;
• and
• n represents 1, 2, 3 or 4;
• and M and Hal are each as defined above;
• wherein the dye of the general formula (III) when V3-1 to V3-12 independently represent hydrogen or —SO3M contains at least one structural element of the formula
• where Hal is as defined above;
• or of the general formula (IV)
• where
• Y4-1 represents the group of the formula
• Y4-2 has the same meanings as Y4-1 or represents one of the following groups:
• W4 represents vinyl sulfone or ethyl sulfone, substituted in the β-position by an alkali-eliminable substituent or —NR4-1 D4;
• D4 represents one of the following groups:
• V4-1 to V4-4 and V4-9 to V4-10 independently represent hydrogen or —SO3M;
• R4-1 represents hydrogen, methyl or ethyl;
• V4-5 to V4-7 independently represent hydrogen, —SO3M, vinyl sulfone or ethyl sulfone, substituted in the β-position by an alkali-eliminable substituent;
• and
• V4-8 represents vinyl sulfone or ethyl sulfone, substituted in the β-position by an alkali-eliminable substituent;
• and
• and M is as defined above.