Reactive dyes of formula (1) wherein Q
1
and Q
2
are each independently of the other hydrogen or unsubstituted or substituted C
1
-C
4
alkyl, A is the radical of a monoazo, polyazo, metal complex azo, anthraquinone, phthalocyanine, formazan or dioxazine chromophore, X is halogen, 3- or 4-carboxypyridin-1-yl, or 3- or 4-carbamoylpyridin-1-yl, Y is vinyl or a radical —CH
2
—CH
2
—U and U is a group removable under alkaline conditions, and q is the number 1 or 2, are suitable for dyeing and printing cellulosic or amide-group-containing fibre materials.
式子(1)中的反应性
染料,其中Q1和Q2各自独立地是氢原子或未取代或取代的C1-C4烷基,A是单偶氮,多偶氮,
金属络合偶氮,
蒽醌,
酞菁,福马赞或二氧杂芥子嗪色团的基团,X是卤素,3-或4-羧基
吡啶-1-基,或3-或4-
氨基甲酰基
吡啶-1-基,Y是
乙烯或基团-
CH2- -U,U是在碱性条件下可去除的基团,q是数字1或2,适用于染色和印刷
纤维素或含酰胺基团的纤维材料。