| 摘要 |
Process for the dyeing and printing of textile materials made from polymers or copolymers of acrylonitrile by using dyestuffs of the general formula WHEREIN R1, R2, and R3 each stands for a hydrogen atom or an optionally substituted lower alkyl group, Z represents a carboxylic ester group, Q stands for an aromatic or heterocyclic radical bound or not bound to the benzene nucleus b, X represents an anion, and wherein each benzene nucleus a or b or the radical Q may optionally be substituted by non-ionic substituents, and which dyeings and prints show very clear and brilliant shades and have good fastness properties.
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