| 摘要 |
Provided are a reactive dyestuff composition which is excellent in overall fastness and leveling property, and expresses deeper color with little contamination onto other fibers, and a method for dyeing fiber, particularly cellulose based fiber using the same. The reactive dyestuff composition comprises 30-90 wt% of at least one dyestuff component having a structure represented by the formula (1) and 1-50 wt% of at least one dyestuff component having a structure represented by the formula (2). In the formulae (1) and (2), each of R1, R2, R3, R4 and R5 is hydrogen, a C1-C4 alkyl, a C1-C4 alkoxy, -SO3H or acetylamino; each of Y1, Y2 and Y3 is vinyl or a radical of the formula -CH2-CH2-Q (where, Q is -Cl, -Br, -F, -OSO3H, -SSO3H, -OCO-CH3, -OPO3H2, -OCO-C6H5, -OSO2-(C1-C4 alkyl) or -OSO2-N(C1-C4 alkyl)2); and A is a C1-C6 alkyl. |
