| 发明名称 |
TONER AND DEVELOPER |
| 摘要 |
A toner is provided. The toner includes particles each including a binder resin and a release agent. When the toner is analyzed by a flow particle image analyzer while limiting:
1) a particle diameter analysis range to 1.985 (μm)≦equivalent circle diameter (number based)<200.0 (μm);2) a particle shape analysis range to 0.200≦circularity≦1.000; and3) the number of limited particles satisfying the conditions 1) and 2) to from 4,800 to 5,200, an average circularity Rave. satisfies an inequation 0.960≦Rave.≦0.980, a mode particle diameter θmax satisfies an inequation 4.0 (μm)≦θmax≦6.0 (μm), and the number of particles having a particle diameter equal to or less than 0.75 times the mode particle diameter θmax and a circularity equal to or more than 0.980 is 1.0% or less of the number of the limited particles. |
| 申请公布号 |
US2015241804(A1) |
申请公布日期 |
2015.08.27 |
| 申请号 |
US201514626113 |
申请日期 |
2015.02.19 |
| 申请人 |
TAKAHASHI Satoshi;MORIYA Yoshihiro;INOUE Ryota;ISHIKAWA Masahiko;YAMAGUCHI Tatsuki |
发明人 |
TAKAHASHI Satoshi;MORIYA Yoshihiro;INOUE Ryota;ISHIKAWA Masahiko;YAMAGUCHI Tatsuki |
| 分类号 |
G03G9/08;G03G9/087 |
主分类号 |
G03G9/08 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. A toner, comprising:
particles, each including:
a binder resin; anda release agent, wherein when the toner is analyzed by a flow particle image analyzer while limiting:1) a particle diameter analysis range to 1.985 (μm)≦equivalent circle diameter (number based)<200.0 (μm);2) a particle shape analysis range to 0.200≦circularity≦1.000; and3) the number of limited particles satisfying the conditions 1) and 2) to from 4,800 to 5,200,
an average circularity Rave. satisfies an inequation 0.960≦Rave.≦0.980, a mode particle diameter θmax satisfies an inequation 4.0 (μm)≦θmax≦6.0 (μm), and the number of particles having a particle diameter equal to or less than 0.75 times the mode particle diameter θmax and a circularity equal to or more than 0.980 is 1.0% or less of the number of the limited particles. |
| 地址 |
Kanagawa JP |
