Mixture of fiber reactive dye compounds and dyeing method using the same

A fiber-reactive dye mixture, comprising

• (i) one or more reactive dyes represented by Formula 1, and
• (ii) one or more reactive dyes represented by Formula 2:
• wherein:
• R1 is hydrogen, or C1-C4 alkyl which may be substituted or unsubstituted with hydroxyl, sulfo, sulfato or carboxyl group;
• R2, R3, R4 and R5 are independently hydrogen, C1-C4 alkyl, C1-C4 alkoxy, C2-C4 alkanoylamino, ureido, sulfamoyl, halogen, sulfo or carboxyl group;
• Y1 is a substituent group of Formula 3a, 3b or 3c:
• wherein R6, R7 and R9 are independently hydrogen, or C1-C4 alkyl which may be substituted or unsubstituted with hydroxyl, sulfo, sulfato, or carboxyl group;
• R8, R10 and R11 are independently hydrogen, C1-C4 alkyl, C1-C4 alkoxy, C2-C4 alkanoylamino, ureido, sulfamoyl, halogen, sulfo or carboxyl group;
• and A1 and A2 are independently a vinyl group or a radical of —CH2—CH2-Q, wherein Q is a leaving group that can be removed under alkaline conditions, for example —Cl, —Br, —F, —OSO3H, —SSO3H, —OCO—CH3, —OPO3H2, —OCO—C6H5, —OSO2-C1-C4 alkyl or —OSO2N(C1-C4 alkyl), preferably —OSO3H;
• X1 and X2 are independently a substituent group of Formula 3a, 3b or 3c, which is an N-heterocyclic group capable of further containing halogen, hydroxyl, 3-carboxypyridine-1-yl, 3-carbamoylpyridin-1-yl, C1-C4 alkoxy group, C1-C4 alkylthio group, unsubstituted or substituted amino group, or a hetero atom;
• and
• Z1, Z2 and Z3 are independently as defined for A1 and A2.