REACTIVE DYE COMPOUNDS

摘要

Reactive dye compounds having formula (I), wherein D is a chromophore; X and Y are independently selected from SR', Cl, Br, or F, wherein R' is selected from: H, Cl-C4 alkyl, (CH2)nCOOH, (CH2)nCONH2, (CH2)nSO3H, (CH2)nCOOM, (CH2)nPO3H, (CH2)nOH, (CH2)nSSO3<->, (CH2)nNR"2, (CH2)nN<+>R"3, PhSSO3<->, PhSO3H, PhPO3H, PhNR"2, PhN<+>R"3, -CN, SO3<->, (CH2)2CH(SH)R"(CH2)3COOH, -CH2CHOHCH2SH, and (1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12), -CH2CH2NH2. n is an integer in the range of 1 to 4 wherein within the same molecule n is not necessarily the same integer; and M is a cation of alkaline earth metal, alkali metal, NH4<+> or NR"3<+>. L is a linking moiety; Z is a nitrogen containing heterocycle selected from pyridone, quinoxaline or pyrimidone; provided that at least one of X or Y is SR' and esters and salts thereof. The reactive dye compounds of the present invention provide improved wash fastness of dye on hair and less colour fade over time.