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.

本文从度学理说明三意义,并详细性染料及散染料三合成和筛选则。

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

颜加法混和三为红、绿、蓝,减法混和三则是它们补,即:青、品红和黄,染料三是后者。