首先用偶合组分上带n -羟乙基官能团的偶氮染料为原料经丙烯酰化反应，得到发色单体。

First, the azo dye with N-hydroxyethyl functional group in coupling components is taken as the raw material to have acryloyl reaction, to obtain hair color monomer.

youdao

首先用偶合组分上带n -羟乙基官能团的偶氮染料为原料经丙烯酰化反应，得到发色单体。

First, the azo dye with N-hydroxyethyl functional group in coupling components is taken as the raw material to have acryloyl reaction, to obtain hair color monomer.

youdao