| abstract |
Reactive dyes of formula (I), wherein Q1 and Q2 are each independently of the other hydrogen or unsubstituted or substituted C1-C4alkyl, D1 is the radical of a diazo component, which is itself a mono- or dis-azo dye or contains such a dye, D2 has the same definition as D1 or is a radical of formula (II), wherein (Q3)0-3 denotes from 0 to 3 identical or different substituents selected from the group halogen, C1-C4alkyl, C1-C4alkoxy, carboxy and sulfo and Z1 is a radical of formula -SO2-Y (3a), -NH-CO-(CH2)m-SO2-Y (3b), -CONH-(CH2)n-SO2-Y (3c), -NH-CO-CH(Hal)-CH2-Hal (3d) or -NH-CO-C(Hal)=CH2 (3e), Y is vinyl or a -CH2-CH2-U radical and U is a group that is removable under alkaline conditions, m and n are each independently of the other the number 2, 3 or 4, and Hal is halogen, are suitable for dyeing cellulosic or amide-group-containing fibre materials. |