Reactive colorants, mixtures of reactive colorants and production and use thereof

摘要

Dyes of formula (1)whereinR1 and R2 are each independently of the other hydrogen or C1-C4alkyl, andD1 and D2 are each independently of the other a radical of formula (2) wherein(R3)0-3 denotes from 0 to 3 identical or different substituents selected from the group halogen, C1-C4alkyl, C1-C4alkoxy, carboxy, nitro and sulfo, andX1 is a radical of formula (3a), (3b), (3c), (3d), (3e) or (3f)or whereinY is halogen, T independently thereof has a meaning given for Y or is a non-fiber-reactive substituent or is a fiber-reactive radical of formula (4a), (4b), (4c), (4d) or (4e) whereinZ is vinyl or a radical -CH2-CH2-U and U is a group removable under alkaline conditions,Z' is a group -CH(Hal)-CH2-Hal or -C(Hal)=CH2,m and n are each independently of the other the number 2, 3 or 4, andHal is halogen,are suitable for dyeing a wide variety of fiber materials, especially cellulosic fiber materials, and yield dyeings having good allround properties.