COMPOSITION OF REACTIVE DYESTUFFS AND METHODS FOR DYEING FIBER USING THE SAME

摘要

A reactive dyestuff composition is provided to produce deep black color when applied to a fiber material, to ensure excellent fastness against washing, sunlight, swear, and hydrochloric acid, and to exhibit good dyeing levelness. A reactive dyestuff composition comprises 30-99wt% of at least one dye component having a structure represented by the following formula 1, and 1-50wt% of at least one dye component having a structure represented by the following formula 2. In the formulae, each of R1, R2, R3, R4, R8, and R15 is independently hydrogen, sulfo, acetylamino, methyl, or methoxy, R5 is a hydrogen, hydroxyl, or carboxyl group, each of R6 and R7 is independently amino, hydroxy, or alkoxy, X is carbon or nitrogen(wherein, if X is nitrogen, then n is 0 or 1, or if X is carbon, then n is 1 or 2), and each of Y1, Y2, Y3, and Y4 is independently a vinyl group or -CH2-CH2-Q group(wherein, Q is a leaving group removable under an alkali condition).