| 发明名称 | Toner, developer, and image forming apparatus | ||
| 摘要 | To provide a toner for developing an electrostatic image, the toner including toner particles, wherein the toner particles contain: a non-crystalline resin A; and a crystalline resin, wherein the crystalline resin contains a crystalline resin C containing a urethane bond, or a urea bond, or both thereof, and wherein the toner particles each have a sea-island structure, where the resin C is dispersed in the non-crystalline resin on a cross-section of the toner particle. | ||
| 申请公布号 | US9366982(B2) | 申请公布日期 | 2016.06.14 |
| 申请号 | US201414274875 | 申请日期 | 2014.05.12 |
| 申请人 | Ricoh Company, Ltd. | 发明人 | Yamamoto Atsushi;Yamada Hiroshi;Hase Takamasa;Nagata Kohsuke |
| 分类号 | G03G9/087;G03G15/08;G03G9/08 | 主分类号 | G03G9/087 |
| 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: toner particles, wherein the toner particles contain: a non-crystalline resin; and a crystalline resin, wherein the crystalline resin contains a crystalline resin C containing a urethane bond, or a urea bond, or both thereof, wherein the toner particles each have a sea-island structure, where the resin C is dispersed in the non-crystalline resin on a cross-section of the toner particle, and wherein an aspect ratio of the resin C dispersed on the cross-section is from 1.2 to 2. | ||
| 地址 | Tokyo JP | ||