发明名称 |
ELECTROPHOTOGRAPHIC TONER |
摘要 |
<p>PROBLEM TO BE SOLVED: To provide a toner of high image quality for which toner cleaning is easy at the time of cleaning by a blade cleaning system or the like and an electrostatic charge image on an image carrier such as a photoreceptor is faithfully reproduced in underwater granulated toner by a small particle size polymerization method or the like. SOLUTION: A toner composition containing a colorant and a denatured polyester resin reactive with active hydrogen is dissolved or dispersed in an organic solvent to form a dissolved material or a dispersed material. The dissolved material or the dispersed material is brought into a reaction with a cross linking agent and/or a stretching agent in an aqueous solvent, a solvent is removed from an obtained dispersed liquid to obtain resin particles containing a colorant. The electrophotographic toner is characterized in that it is made of resin particles in which the average circularity is 0.920 to 0.960.</p> |
申请公布号 |
JP2003140377(A) |
申请公布日期 |
2003.05.14 |
申请号 |
JP20010338437 |
申请日期 |
2001.11.02 |
申请人 |
RICOH CO LTD |
发明人 |
YAMADA HIROSHI;YAMASHITA YUJI;WATANABE SHINKO;SUGIYAMA KOSHIN;YAGI SHINICHIRO;TOMITA MASAMI;EMOTO SHIGERU;MINAMITANI TOSHIKI;TAKIGAWA TADAO |
分类号 |
G03G9/08;G03G9/087;(IPC1-7):G03G9/08 |
主分类号 |
G03G9/08 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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