| 摘要 |
PROBLEM TO BE SOLVED: To obtain a reaction dye composition having excellent uniformity of each dye and low dependence on dyeing temperature, concentration of inorganic salt, bath ratio, etc. SOLUTION: This dye composition comprises reactive dyes of formula (I) [m1 is an integer of 1 to 3; R1 to R3 are each hydrogen, an alkyl or the like; R4 is hydrogen or the like; R5 to R6 are each hydrogen or an alkyl; U1 to U2 are each phenylene, an alkylene or the like; Y1 to Y2 are each a vinyl sulfone-based reactive group) and formula (VI) [R22 to R23 are each a halogen or pyridinio; R24 to R26 are each hydrogen or an alkyl; U5 is phenylene or a 2-6C alkylene; Y4 is a vinyl sulfone-based reactive group].
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