| 发明名称 | Toner, developer, and image forming apparatus | ||
| 摘要 | A toner including a crystalline polyester and an amorphous polyester is provided. When the binder resin is extracted from the toner with tetrahydrofuran to obtain an extracted solution, and the extracted solution is heated to remove the tetrahydrofuran and obtain a deposit, the deposit contains spherical domains of the crystalline polyester having an average particle diameter of 7.0 μm or less. | ||
| 申请公布号 | US9377707(B2) | 申请公布日期 | 2016.06.28 |
| 申请号 | US201514631136 | 申请日期 | 2015.02.25 |
| 申请人 | Ricoh Company, Ltd. | 发明人 | Miyakoshi Ryo;Asahina Daisuke;Moriya Yoshihiro;Sekiguchi Satoyuki;Hirokawa Yuya |
| 分类号 | G03G9/08;G03G9/087 | 主分类号 | G03G9/08 |
| 代理机构 | Oblon, McClelland, Maier & Neustadt, L.L.P | 代理人 | Oblon, McClelland, Maier & Neustadt, L.L.P |
| 主权项 | 1. A toner, comprising: a binder resin, including a crystalline polyester; andan amorphous polyester, wherein when the binder resin is extracted from the toner with tetrahydrofuran to obtain an extracted solution, and the extracted solution is heated to remove the tetrahydrofuran and obtain a deposit, the deposit contains spherical domains of the crystalline polyester having an average particle diameter of 7.0 μm or less. | ||
| 地址 | Tokyo JP | ||