| 摘要 |
Dyestuff of the formula <IMAGE> (1) wherein FB=the radical of a dyestuff B/B'=a bridge member X=CH=CH2 or CH2CH2-Y Y=a radical which can be eliminated under alkaline conditions and R, R1 and R2=H or C1-C4-alkyl, which is unsubstituted or substituted by halogen, hydroxyl, cyano, C1-C4-alkoxy, carboxyl, sulpho or sulphato and wherein R1-R2 can also represent a C1-C4-alkylene unit, Hal=F, Cl or Br, A=a direct bond or an aliphatic, cycloaliphatic or mixed aromatic-aliphatic bridge member, which can optionally contain hereto atoms, selected from N, O, S or SO2, and wherein the radical -NR1-A-NR2- can also be <IMAGE> and Z=a reactive group produce, on naturally occurring and synthetic materials containing OH groups and amide group, dyeings and prints with good general fastness properties, in particular good wet-fastness properties, coupled with a good build-up capacity and a high fixing yield.
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