Results prove that the degree of decoloring varies decreasingly with the dye structure in the(following) sequence: azo dyes, anthraquinone dyes, metal complex dyes, and cationic dyes.
结果表明,脱色的难易程度从染料结构看,依次为偶氮型、蒽醌型>金属络合型>半菁阳型。
2
The cationicdye may be chosen from azo dyes, azomethine dyes, methine dyes and xanthene dyes.