| 摘要 |
The mixture of monoazo dyestuffs containing at least different individual dyestuffs of the formula <IMAGE> wherein R1 is alkyl of 1 to 6 carbon atoms, cyclopentyl, cyclohexyl, fluoro, chloro, bromo, alkoxy of 1 to 4 carbon atoms or trifluoromethyl, R2 is alkyl of 1 to 3 carbon atoms and R3 and R4, independently of each other, are alkyl of 1 to 4 carbon atoms, is highly suitable for dyeing and printing hydrophobic materials.
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