Use them as a natural dye for your hair, paper, fabric and wood.

咖啡渣还是天然染色剂，可以用于头发，纸张，纺织品和木制品染色。

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In this paper, a natural hair dye is studied, which mainly contains organic compound of plant without toxic lead and phenylamine sensitizer.

针对传统染发剂的毒性及刺激性，本文研制一种不含有毒铅，不含苯胺类致敏物，而含属于植物构分的有机化合物的天然型染发。

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I like the beauty of natural health, so I do not like chemical hair dye.

我喜欢自然健康的美丽，因此，我没有将白发染成其他颜色。

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