Additive mixture ofcolortrichroism is red,green and blue,subtractive mixture,as its complementary colors,is cyan,ma genta and yellow,thatis the dyestuff trichroism.

颜的加法混和红、绿、蓝,减法混和的则是们的补,即:青、品红和黄,染料的是后者。

Based on the colorimetry mechanism,the meaning oftrichroism is studied,as well as the synthetic and selecting principles of trichroism ofreactive and disperse dyes in particular.

本文从度学理说明意义,并详细论述活性染料及分散染料的合成和筛选则。