New electrostatographic toners and developers are provided containing novel charge control agents comprising ester-containing quaternary pyridinium salts having the structure: ##STR1## wherein R.sub.1 is alkyl or aryl, X is CH.sub.2n, Y is hydrogen, alkyl, alkoxy or halogen, Z.crclbar. is an anion and n is an integer from 2 to 6. Such ester-containing quaternary pyridinium salts also cause toner particles containing them to display lower fusing temperatures and improved adhesion indexes.
提供了新的静电成像色调粉和开发剂,其中包含具有以下结构的酯基季
铵盐的新型电荷控制剂:## STR1 ## 其中R1是烷基或芳基,X是CH2n,Y是氢,烷基,烷氧基或卤素,Z.crclbar.是阴离子,n是从2到6的整数。这种含酯基的季
铵盐还会导致含有它们的色调粒子显示出较低的熔合温度和改善的附着指数。