| 摘要 |
Fibre-reactive chlorotriazine dyes of the formula <IMAGE> where the substituents R1, R2, R3, R4, D1 and D2 are each as defined in Claim 1, are obtained when aliphatic or aromatic diamines of the formula 11, 2,4,6-trichloro-s-triazine and amino-containing monoazo or nitroaryl dyes of the formula 13 and monoazo metal complex dyes of the formula 14 are reacted with one another. The individual condensation steps can be carried out in any order. The bis reactive dyes thus obtained are notable for high reactivity, a high degree of exhaustion and high fixation combined with good wash-off properties in respect of the unfixed portions and also for good fastness properties of the resulting dyeings. They are suitable in particular for dyeing and printing cellulose-containing material of fibrous structure. <IMAGE>
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