| 摘要 |
Cationic styryl dyestuffs of the formula <IMAGE> in which A1 is an alkyleneoxy or alkyleneamino radical, D1 is a direct bond or divalent radical, An is an anion, and the terminal phenyl ring is unsubstituted or substituted by CN, alkyl or alkoxy. The compounds are suitable for dyeing, enscribing and printing paper for dyeing and printing synthetic fibres, especially made of polyacrylonitrile, acid-modified polyesters or polyamides. |
