发明授权
US08034521B2 Toner for developing electrostatic charge image, image forming method and image forming apparatus
失效
用于显影静电荷图像，图像形成方法和图像形成装置的调色剂
- 专利标题： Toner for developing electrostatic charge image, image forming method and image forming apparatus
- 专利标题（中）： 用于显影静电荷图像，图像形成方法和图像形成装置的调色剂
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申请号： US12343025申请日： 2008-12-23
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公开(公告)号： US08034521B2公开(公告)日： 2011-10-11
- 发明人: Shinichi Kuramoto , Shinji Ohtani
- 申请人： Shinichi Kuramoto , Shinji Ohtani
- 申请人地址： JP Tokyo
- 专利权人： Ricoh Company, Ltd.
- 当前专利权人： Ricoh Company, Ltd.
- 当前专利权人地址： JP Tokyo
- 代理机构： Oblon, Spivak, McClelland, Maier & Neustadt, L.L.P.
- 优先权： JP2007-339336 20071228
- 主分类号： G03G9/087
- IPC分类号： G03G9/087
摘要：
To provide a toner for developing an electrostatic charge image, the toner containing at least a colorant obtained by reacting a polymer with a basic dye, wherein the polymer contains 10 mol % or more of a monomer unit having any one of a sulfonic acid group, a sulfonic acid salt group, a sulfuric acid group and a sulfuric acid salt group as a constitutional unit, and the toner is obtained by forming a toner composition liquid containing at least the colorant into oil droplets in an aqueous medium, and solidifying the oil droplets into solid particles.
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