发明授权
US09239530B2 Toner for forming electrostatic image, developer, process cartridge, and image forming apparatus
有权
用于形成静电图像,显影剂,处理盒和成像装置的调色剂
- 专利标题: Toner for forming electrostatic image, developer, process cartridge, and image forming apparatus
- 专利标题(中): 用于形成静电图像,显影剂,处理盒和成像装置的调色剂
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申请号: US14025128申请日: 2013-09-12
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公开(公告)号: US09239530B2公开(公告)日: 2016-01-19
- 发明人: Daisuke Asahina , Hiroshi Yamashita , Masana Shiba , Tsuyoshi Sugimoto , Yukari Fukuda , Rintaro Takahashi
- 申请人: Daisuke Asahina , Hiroshi Yamashita , Masana Shiba , Tsuyoshi Sugimoto , Yukari Fukuda , Rintaro Takahashi
- 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, McClelland, Maier & Neustadt, L.L.P.
- 优先权: JP2012-204162 20120918
- 主分类号: G03G9/087
- IPC分类号: G03G9/087 ; G03G9/08
摘要:
To provide a toner, which contains a colorant, a binder resin, and a releasing agent, wherein the toner satisfies the following (a) to (c): (a) the toner contains at least a polyester resin as the binder resin; (b) the toner has Tg1st of 25° C. to 50° C.; and (c) the toner has a TMA compressive deformation rate (TMA %) of 10% or lower at 50° C. under a condition having relative humidity of 70%, wherein the Tg1st is glass transition temperature of the toner for first heating, as the toner is measured by a DSC system (a differential scanning calorimeter).
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