Yellow reactive dye composition comprising at least two ((1,3,5-triazin-2-ylaminophenyl)azo)napthalene-(di-/tri)sulfonic acid fibre reactive monoazo dyes.

摘要

A reactive dye composition which has excellent build-up property and which reveals a high fixing ration in the dark color range is new. A reactive dye composition comprises: (1) a first compound which is: (i) a compound of formula (I): (2) a second compound, which is not identical to the one above, and which is: (i) a compound of formula (I) as defined above; or its sa or (ii) a compound of formula (II): (iii) a compound of formula (III): For formula (I): R1 = ureido, alkylcarbonylamino, optionally substituted with a 1-4C alkyl group or 2-4C alkenyl group; or an optionally substituted phenylcarbonylamino group; R2,R3 = H or a 1-4C, optionally substituted, alkyl group; B1, B2 = an optionally substituted phenylene or naphthylene group; m = 1 or 2; n = 0 or 1, providing m+n = 2 or 3; and Y1, Y2 = -CH2CH2L group; where: L = a leaving group activated by alkali, a vinyl group or -CH2CH2OH, providing that at least one of Y1 and Y2 is not -CH2CH2OH; or a salt thereof; For formula (II): R4 = ureido; alkylcarbonylamino, optionally substituted with a 1-4C alkyl group or 2-4C alkenyl group; or optionally substituted phenylcarbonylamino; R5, R6 = H or a 1-4C, optionally substituted, alkyl group; B3, B4 = an optionally substituted phenylene or naphthylene group; m2 = 1 or 2 n2 = 0 or 1, providing m2+n2 = 2 or 3; and Y3, Y4 = a leaving group activated by alkali, or a vinyl group or a salt thereof; For formula (III): R7 = as for R4 above; R8 = R5 or R6 above; B5 = as for B3 or B4 above; m3, n3 = as for m2 and n2 above; Y5 = as for Y3or Y4above. Independent claims are made for the following: (1) a method for dyeing or printing a cellulose fiber material, which comprises applying a reactive dye composition to the material; and (2) a cellulose fibre material dyed or printed using a reactive dye composition.