YELLOW DYE MIXTURE CONTAINING AZO DYE REACTIVE WITH WATER-SOLUBLE FIBER, AND ITS USE

PROBLEM TO BE SOLVED: To obtain a dye mixture comprising a yellow dye for dyeing with reduced photochromism, by mixing plural types of monoazo dyes at a specific ratio. SOLUTION: One or more dyes having formulas I or II or a combination thereof are blended with one or more dye having formulas III, IV or V or a combination thereof at a molar ratio of 70:30-30:70. In the formulas, M is H or an alkali metal; D is benzene or naphthalene: Y1 is vinyl or ethyl in which the β position is substd. with an alkali-eliminatable substitutent; Z is a halopyrimidine, a dichloroquinoxalin or a halotriazine; Z0 is formula VI; B0 is H, a direct bonding, an alklene, an alkenylene or an alkylene-phenylene- alkylene; R is amino or a (substd.) alkyl; R1, R4 and R7 are each H, an alkyl, an alkoxy or sulfo; R2 and R5 are each methyl or carboxyl; R6 is H, sulfo, carboxyl, an alkyl or an alkoxy; R3 is H, a halogen, an alkyl or an alkoxy; (m) is 1-3; and (n) is 1-2.