| 发明名称 | Electrostatic latent image developing toner | ||
| 摘要 | An electrostatic latent image developing toner includes a plurality of toner particles each including a toner core and a shell layer. The shell layer includes a plurality of first shell particles and a plurality of second shell particles. The first shell particles cover the toner core at a coverage of at least 25% and no greater than 50%. The second shell particles additionally cover the toner cores at a coverage of at least 5% and no greater than 30%. An SP value of the toner core is greater than an SP value of the first shell particles. The SP value of the first shell particles is greater than an SP value of the second shell particles. | ||
| 申请公布号 | US9639018(B2) | 申请公布日期 | 2017.05.02 |
| 申请号 | US201615163293 | 申请日期 | 2016.05.24 |
| 申请人 | KYOCERA Document Solutions Inc. | 发明人 | Miyamoto Hidetoshi |
| 分类号 | G03G9/093;G03G9/08;G03G9/087 | 主分类号 | G03G9/093 |
| 代理机构 | Studebaker & Brackett PC | 代理人 | Studebaker & Brackett PC |
| 主权项 | 1. An electrostatic latent image developing toner comprising a plurality of toner particles each including a toner core and a shell layer that covers a surface of the toner core, wherein the shell layer includes a plurality of first shell particles and a plurality of second shell particles, the first shell particles cover the surface of the toner core, the second shell particles additionally cover the toner core covered with the first shell particles, the first shell particles have a coverage (CF) that satisfies a following expression (1), the second shell particles have a coverage (CS) that satisfies a following expression (2), and a solubility parameter (SPT) of the toner core, a solubility parameter (SPF) of the first shell particles, and a solubility parameter (SPS) of the second shell particles satisfy a following expression (3): 25%≦CF≦50% (1)5%≦CS≦30% (2)SPT>SPF>SPS (3). | ||
| 地址 | Osaka JP | ||