colorant

例句：

1. 1.The artist uses various colorants to create the vibrant colors in his paintings.
   这位艺术家使用各种着色剂来创作他画作中鲜艳的颜色。
2. 2. The scientist discovered a new type of colorant that could be used for printing.
   这位科学家发现了一种新的着色剂，可以用来印刷。
3. 3. The dyes used in this colorant are environmentally friendly and biodegradable.
   这种着色剂中使用的染料是环保且可生物降解的。