| 发明名称 |
ELECTROSTATIC CHARGE IMAGE DEVELOPING TONER |
| 摘要 |
An electrostatic charge image developing toner includes a plurality of toner particles. Each of the plurality of toner particles includes a toner core and a shell layer covering the toner core. The shell layer contains a thermosetting resin. A content ratio of a toner component insoluble in tetrahydrofuran is at least 90 mass % relative to mass of the toner. Melt viscosity of the toner at 75° C. is at least 1.0×104 Pa·s and no greater than 1.0×105 Pa·s. The thermosetting resin is preferably a melamine resin or a urea resin. The toner core preferably contains a binder resin, and the binder resin has a softening point (Tm) of at least 85° C. and no greater than 95° C. |
| 申请公布号 |
US2017010552(A1) |
申请公布日期 |
2017.01.12 |
| 申请号 |
US201515120715 |
申请日期 |
2015.02.10 |
| 申请人 |
KYOCERA DOCUMENT SOLUTIONS INC. |
发明人 |
SUMIOKA Sho |
| 分类号 |
G03G9/093;G03G9/09;G03G9/08 |
主分类号 |
G03G9/093 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. An electrostatic charge image developing toner comprising a plurality of toner particles, wherein
each of the plurality of toner particles includes a toner core and a shell layer covering the toner core, the shell layer contains a thermosetting resin, a content ratio of a toner component insoluble in tetrahydrofuran is at least 90 mass % relative to mass of the toner, and melt viscosity of the toner at 75° C. is at least 1.0×104 Pa·s and no greater than 1.0×105 Pa·s. |
| 地址 |
Osaka-shi JP |
