Mixtures of fiber-reactive azo dyes, their preparation and their use

A dye mixture comprising

• one or more dye(s) of:
• formula (I)
• and
• one or more dye(s) of:
• formula (II)
• and optionally
• one or more dye(s) of:
• formula (IV)
• wherein
• D1 and D2 independent of one another is group of formula (1)
• wherein
• R1 and R2 independent of one another is hydrogen, (C1-C4)-alkyl, (C1-C4)-alkoxy, sulfo, carboxyl, amido or ureido,
• X1 is hydrogen or —SO2—CH═CH2,
• D3 and D4 independent of one another is a group of formula (1)
• wherein
• R1 and R2 independent of one another is hydrogen, (C1-C4)-alkyl, (C1-C4)-alkoxy, sulfo, carboxyl, amido or ureido,
• X1 is hydrogen or a group of the formula:
• —SO2—Z, wherein
• Z is hydroxyl, —CH═CH2 or —CH2CH2Z1, wherein
• Z1 is hydroxyl or a group which can be eliminated under the action of alkali,
• R200 is
• i) hydrogen,
• ii) C1-C6-alkyl, which is linear or branched and is unsubstituted or substituted by amino, (C1-C4)-alkylamino, hydroxyl, (C1-C4)-alkoxy, sulfo, halogen, carboxyl, acetamido or ureido,
• iii) phenyl, which is unsubstituted or substituted by (C1-C4)-alkyl, (C1-C4)-alkoxy, sulfo, halogen, carboxyl, acetamido or ureido;
• iv) amino, (C1-C4)-alkylamino, hydroxyl, (C1-C4)-alkoxy, sulfo, carboxyl, cyano, halogen, nitro, amido or ureido,
• R201 is a group of the formula:
• —N═N-D3,
• R* and R** independent of one another is hydrogen, (C1-C4)-alkyl, CO—(C1-C4-alkyl) or —CH2—SO3M,
• M is hydrogen, an alkali metal or one equivalent of an alkaline earth metal,
• and wherein the sum of weights of all dyes of formula (I) that are present in the dye mixture is at least 40% of the weight of the dye mixture—calculated on the basis of the sum of weights of all dyes according to formulae (I), (II) and (IV) that are present in the dye mixture.