发明授权
- 专利标题: Electrostatic image developing toner
- 专利标题(中): 静电图像显影墨粉
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申请号: US13513044申请日: 2010-12-01
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公开(公告)号: US08835086B2公开(公告)日: 2014-09-16
- 发明人: Naohiro Watanabe , Naohito Shimota , Yasuaki Iwamoto , Masana Shiba , Satoshi Kojima
- 申请人: Naohiro Watanabe , Naohito Shimota , Yasuaki Iwamoto , Masana Shiba , Satoshi Kojima
- 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: JP2009-274985 20091202
- 国际申请: PCT/JP2010/071942 WO 20101201
- 国际公布: WO2011/068240 WO 20110609
- 主分类号: G03G9/08
- IPC分类号: G03G9/08
摘要:
An electrostatic image developing toner including: a binder resin; a colorant; and a wax, wherein the intensity ratio of an absorbance at 2,850 cm−1 derived from the wax to an absorbance at 828 cm−1 derived from the binder resin, represented by “absorbance derived from the wax/absorbance derived from the binder resin”, is in the range of 0.1 to 0.5, where the absorbances are measured by FTIR-ATR, and the intensity ratio serves as a value for determining the amount of the wax present within 0.3 μm in depth from surfaces of particles of the toner after the toner has been heated to 140° C. and then cooled, and wherein the toner has a storage elastic modulus of 5,000 Pa or greater at 140° C.
公开/授权文献
- US20120264043A1 ELECTROSTATIC IMAGE DEVELOPING TONER 公开/授权日:2012-10-18
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