Cationic dyestuff的用法和样例：
例句
- Graft dyeing by reactive dye and cationic dye is the direction of development of silk dyeing.
活性染料和阳离子染料的接枝染色是丝绸染色的发展方向。 - In the discontinuous deweighting process, the cationic deweighting promoter absorbed onto the fabric leads to protracted dyeing of cationic dyestuffs, so it should be avoided.
实践证明，应采用间歇式碱减量机减量，避免采用减量促进剂，以防止减量时阳离子型促进剂吸附在织物上，造成染色时对阳离子染料的缓染。
