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Disable Dyes In Direct Dyes
Apr 24, 2018

Direct dyes are a large number of dyes used in cellulose fibers. Among the first 118 banned dyes in Germany, there are 77 direct dyes, accounting for 65%. Among them, 72 direct dyes are synthesized from three derivatives such as benzidine and two methyl diphenyl amine as intermediates, and 36 direct dyes with biphenyl amine as intermediates, and the yield is almost 50% of the total output of direct dyes. According to statistics, in recent years, the Direct Dyestuffs of China's production of direct dyes are 37, accounting for 62.7% of the total number of direct dyes produced in China.

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