Polymeric dyes that comprise (a) segments that render the dyes soluble or dispersible in hydrocarbon solvents and (b) segments that impart color. The polymeric dyes can be introduced into hydrocarbon solvents or formed in hydrocarbon solvents to form stable colored dispersions, which can be used as toners for electrophotography. In these toners, the polymeric dye contains macromeric moieties that render the polymeric dye dispersible in hydrocarbon solvents. The polymeric dye may contain either a charge-directing chelating moiety or a surface-release promoting moiety or both of these moieties.
聚合
染料由(a)使
染料在烃类溶剂中可溶或可分散的片段和(b)赋予颜色的片段组成。聚合
染料可以引入到烃类溶剂中或在烃类溶剂中形成稳定的有色分散液,可用作电子摄影的色调剂。在这些色调剂中,聚合
染料包含使聚合
染料在烃类溶剂中分散的大分子基团。聚合
染料可以包含电荷引导螯合基团或表面释放促进基团或这两种基团。