发明名称 TONER AND DEVELOPER
摘要 PROBLEM TO BE SOLVED: To provide a toner superior in the dispersibility of a coloring agent and the charging properties, and to provide a developer that contains the toner. SOLUTION: The toner is obtained at least by the emulsification or dispersal in an aqueous solvent and comprises a binding resin, a coloring agent, and a dispersant that disperses the coloring agent. The binding resin contains 50 wt.% or higher and 100 wt.% or lower of a polyester resin, and the surface of the coloring agent is acid-processed. The acid number value of the dispersant is 0-30 mg KOH/g, and the amine valuer of the dispersant is 1-100 mg KOH/g. COPYRIGHT: (C)2007,JPO&INPIT
申请公布号 JP2006293304(A) 申请公布日期 2006.10.26
申请号 JP20060000765 申请日期 2006.01.05
申请人 RICOH CO LTD 发明人 OKI MASAHIRO;WATANABE SHINKO;INOUE RYUTA;EMOTO SHIGERU;YAMADA MASAHIDE;SAITO AKINORI;SUGIYAMA KOSHIN;WATANABE YOICHIRO
分类号 G03G9/087;G03G9/08;G03G9/09 主分类号 G03G9/087
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