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31. 发明授权

US4304830A Toner additives 失效
标题翻译：调色剂添加剂
公开(公告)号：US4304830A
公开(公告)日：1981-12-08
申请号：US111620
申请日：1980-01-14
申请人： Steven B. Bolte , Robert J. Gruber , Richard F. Koehler, Jr. , Edward W. Connors
发明人： Steven B. Bolte , Robert J. Gruber , Richard F. Koehler, Jr. , Edward W. Connors
IPC分类号： G03G9/097 , G03G9/107 , G03G9/113 , G03G9/10
CPC分类号： G03G9/09758 , G03G9/1075 , G03G9/1138
摘要： This invention is directed to positively charged toners comprised of a resin, a colorant, and an additive possessing an anion, and more specifically, an alkyl pyridinium compound and its corresponding hydrate, of the formulas ##STR1## wherein A is an anion, which in a preferred embodiment is selected from halides such as fluoride, chloride, bromide, or iodide; sulfate, sulfonate, nitrate borate, and phosphate; R is a hydrocarbon radical containing from about 8 to about 22 carbon atoms and preferably from 12 to 18 carbon atoms. An important embodiment of the present invention is directed to a process for rapidly charging (or admixing) uncharged dry electrostatographic toner, containing the alkyl pyridinium compounds of the above formulas, subsequent to its addition to previously charged developer, whereby the uncharged toner particles acquire a charge within a period of from about 1 minute to about 5 minutes. The toners of this invention are useful for developing images of high quality in an electrostatographic imaging system.
摘要翻译：本发明涉及由具有阴离子的树脂，着色剂和添加剂组成的带正电荷的调色剂，更具体地，其中A是阴离子的式“IMAGE”的烷基吡啶鎓化合物及其相应的水合物，其中优选的实施方案选自卤素如氟化物，氯化物，溴化物或碘化物; 硫酸盐，磺酸盐，硝酸硼酸盐和磷酸盐; R是含有约8至约22个碳原子，优选12至18个碳原子的烃基。本发明的一个重要实施方案涉及一种用于在加入到预先装入的显影剂中之后快速装入（或混合）含有上述式的烷基吡啶鎓化合物的不带电的干燥静电色谱调色剂的方法，由此不带电荷的调色剂颗粒获得在约1分钟至约5分钟的时间内充电。本发明的调色剂可用于在静电图像成像系统中显影高质量图像。

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