发明名称 ELECTROSTATIC CHARGE IMAGE DEVELOPING TONER
摘要 PROBLEM TO BE SOLVED: To provide a toner which adapts to a low-temperature fixing system while retaining cleanability, has good anti-offset properties, and causes neither contamination of a fixing device nor stain of an image. SOLUTION: In the electrostatic charge image developing toner obtained by dissolving or dispersing at least a prepolymer comprising a modified polyester resin, a compound which extends or crosslinks with the prepolymer, and a colorant in an organic solvent, bringing the resulting solution or dispersion into a crosslinking reaction and/or an extension reaction in an aqueous medium, and removing the solvent from the resulting dispersion, a fluorine compound represented by formula (1) is contained, one or more kinds of inorganic fine particles are further contained, and a charge amount of the toner after mixing with the inorganic fine particles is reduced by≥10% as compared with a charge amount of the matrix toner. In the formula (1), R<SP>1</SP>-R<SP>4</SP>each denotes a 1-12C alkyl; X denotes CO or SO<SB>2</SB>; Y denotes an anion; n denotes a positive integer; and m denotes a positive integer. COPYRIGHT: (C)2005,JPO&NCIPI
申请公布号 JP2004280022(A) 申请公布日期 2004.10.07
申请号 JP20030075149 申请日期 2003.03.19
申请人 RICOH CO LTD 发明人 UMEMURA KAZUHIKO;MOCHIZUKI MASARU;IWAMOTO YASUTAKA;SUGIURA HIDEKI;ASAHINA YASUO;NAKAYAMA SHINYA;SAKATA KOICHI;UCHIUMI TOMOKO
分类号 G03G9/08;G03G9/087;(IPC1-7):G03G9/08 主分类号 G03G9/08
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