是一些可溶于油脂，蜡或其它有机溶剂而不溶于水的染料。按其化学结构主要分为偶氮染料，芳甲烷染料与醌亚胺染料等。此种染料具有良好的染料品性。
结果表明，油溶性染料分子中，取代基团的吸电性强，不对称性大，取代基含脂肪链短的，其漂白性能好。
Relationship between bleaching property nd molecular structure of yellow, magenta and cyan oil soluble dyes for silver-dye-bleach photography were studied.
对于油溶性好的染料，则可用萃取进行染料的回收，而用电泳萃取方法进行溶剂再生。
For the high distribution coefficient dyestuffs, they could be recovered from their dilute solutions by solvent extraction, while the loaded solvent could be re generated by electro extraction.
应用推荐