| 发明名称 | Electrophotographic toner | ||
| 摘要 | An electrophotographic toner contains an electron donating color developable agent, an electron accepting color developing agent, and a polyester resin binder which is a polyester resin obtained by polycondensation of a carboxylic acid component and an alcohol component and has a crosslinked structure formed of a crosslinking component including at least either one of a trivalent or higher valent carboxylic acid and a trihydric or higher hydric alcohol, and is decolorized by heating. | ||
| 申请公布号 | US9164408(B2) | 申请公布日期 | 2015.10.20 |
| 申请号 | US201113093142 | 申请日期 | 2011.04.25 |
| 申请人 | TOSHIBA TEC KABUSHIKI KAISHA | 发明人 | Aoki Takayasu;Imamiya Koji;Itou Tsuyoshi |
| 分类号 | G03G9/093;G03G9/08;G03G9/087;G03G9/09 | 主分类号 | G03G9/093 |
| 代理机构 | Foley & Lardner LLP | 代理人 | Foley & Lardner LLP |
| 主权项 | 1. An electrophotographic toner, which is decolorable with heat, comprising an electron donating color developable agent, an electron accepting color developing agent, a temperature control agent, and a binder resin which is a polyester resin obtained by polycondensation of a carboxylic acid component and an alcohol component and has a crosslinked structure formed of trimellitic acid contained in the binder resin in an amount of from 3 to 15 wt % of the total weight of the binder resin, wherein at least the electron donating color developable agent, the electron accepting color developing agent, and the temperature control agent are microencapsulated in a same microcapsule, and wherein the toner has a toluene insoluble content of 15% by mass or more and 40% by mass or less of the total weight of the binder resin. | ||
| 地址 | Tokyo JP | ||