摘要 |
PURPOSE: Provided is a reactive black dye composition excellent in the fastness of washing and the fastness of sunlight, which has excellent stability in an alkali dyebath when dyeing cellulose fiber and rayon fiber and low contamination to other fiber when mix-dyeing. CONSTITUTION: The reactive black dye composition comprises 55-95wt% of a dye compound represented by the formula(I), 2-40wt% of a dye compound represented by the formula(II) or (III), and 5-43wt% of a dye compound represented by the formula(IV) or (V). In the formula, X is a group capable of esterification by substitution, A is chloro or fluoro, R1 and R2 are independently hydrogen, methyl, ethyl, methoxy, ethoxy, and n is an integer of 0-2.
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