A new synthetic strategy for industrially important deep-shade disperse azo dyes was presented in this study. The key procedure is to prepare stable solid diazonium salts of weakly basic amines in the absence of concentrated sulfuric acid. Diazotization by tert-butyl nitrite in ethylacetate was allowed to proceed in the presence of equivalent 1,5-naphthalenedisulfonic acid as stabilizer of diazonium
DISPERSE DYE COMPOSITION, DISPERSE DYE AND PREPARATION METHOD AND USE THEREOF
申请人:ZHEJIANG RUNTU CO., LTD.
公开号:US20160312403A1
公开(公告)日:2016-10-27
A disperse dye composition, disperse dye and preparation method and use thereof. The disperse dye is suitable for fabrics, particularly for dyeing and printing of dacron and blended fabrics thereof.