Chemical dyes and organic pigments 染料与有机颜料化学工
Leather Chemical Dyes 皮革化工染料
Superficial Chemical Dyes 皮毛化工染料
chemical hair dyes 化学染发剂
The main idea here is that synthetic chemical dyes replaced textile dyes.
其主要想法是合成化学染料代替纺织染料。
The indigo plant was highly valued until the discovery of chemical dyes in the 19th century.
在19世纪发现化学染料之前，靛蓝一直被高度重视。
Textile dyes, such as indigo, were mostly of plant origin until the advent of synthetic chemical dyes.
在合成化学染料出现之前，诸如靛蓝之类的纺织染料主要来源于植物。
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