| 摘要 |
Azo compounds of low solubility in water and having the formula WHEREIN R1 is chloro, bromo, cyano or acyl, R2 is cyano or nitro, R3 is alkyl or aryl optionally substituted with nonwater solubilizing substituents, and R7 is alkylene of two to four carbon atoms. These compounds are highly suitable as disperse dyes for dyeing and printing fibres, yarns and textiles whice consist of or contain synthetic or semi-synthetic organic substances of high molecular weight and hydrophobic character. The dyeings obtained are outstandingly fast to light, sublimation and wet treatments.
|
