TONER FOR ELECTROSTATIC CHARGE IMAGE DEVELOPMENT AND DEVELOPING AGENT FOR ELECTROSTATIC CHARGE IMAGE DEVELOPMENT,申请号JP20080243089-传众专利搜索

TONER FOR ELECTROSTATIC CHARGE IMAGE DEVELOPMENT AND DEVELOPING AGENT FOR ELECTROSTATIC CHARGE IMAGE DEVELOPMENT

申请公布号：JP2010072586(A)

申请号：JP20080243089

申请日期：2008.09.22

申请公布日期：2010.04.02

申请人：

FUJI XEROX CO LTD

发明人：MURAKAMI TAKESHI;IIDA YOSHIFUMI;SAITO YUTAKA;HASHIMOTO YASUAKI;YANO TOSHIYUKI

分类号：G03G9/08;G03G9/087

主分类号：G03G9/08

摘要：<P>PROBLEM TO BE SOLVED: To provide toner fixed at low temperature and providing stable high image quality over long term use. Ž<P>SOLUTION: This toner for electrostatic charge image development has negative electrostatic property and contains at least toner base particles and an external additive. The toner base particles contain at least a crystalline resin, a color material, and a mold releasing agent. This toner contains as the external additive one or more sorts of inorganic particles of positive electrostatic property with the volume average particle size of 80-200 nm and one or more sorts of metatitanic acid particles of negative electrostatic property to which surface processing of 50 mass% or more is performed with a surface treatment agent. The added mass ratio (metatitanic acid particles/inorganic particles) of the metatitanic acid particles of the negative electrostatic property in relation to the inorganic particles of the positive electrostatic property is 1.1 to 2.5. Ž<P>COPYRIGHT: (C)2010,JPO&INPIT Ž