| 摘要 |
The invention relates to water-insoluble quinophthalone dyestuffs of the formula <IMAGE> in which T represents W-Ar or <IMAGE> and Ar denotes aryl, W denotes oxygen, sulphur or N-R, R denotes hydrogen or alkyl, A denotes alkylene, O R1 denotes alkyl or aryl, R2 denotes hydrogen or alkyl, X denotes halogen, alkyl, alkoxy, nitro or acylamino, Y denotes hydrogen or halogen, Z denotes hydrogen, alkyl or halogen and N DENOTES A NUMBER FROM 0 TO 3 The new dyestuffs and their mixtures are distinguished by good affinity to polyester fibres and good general fastness properties.
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