发明名称 |
Toner used for electrophotography |
摘要 |
In toner 1 containing a binder resin 2, wax particles 3 and a coloring agent, the wax particles 3 are designed so that the ratio of major axis/minor axis is set in the range of 1.4 to 4.0 and so that the major axis L is not more than 6.0 mu m. Moreover, the melt index of the binder resin ranges from 5.0 to 11.0, and the dielectric loss tangent (tan delta ) is not more than 5.0. This arrangement prevents the wax particles 3 inside the toner 1 or at the toner 1 surface layer from exposing to or sticking out of the toner 1 surface, thereby making it possible to provide a superior offset-reducing property during the fixing process and electrophotographing toner that can reduce wax contamination on the surface of the toner-bearing body.
|
申请公布号 |
US6103439(A) |
申请公布日期 |
2000.08.15 |
申请号 |
US19980060500 |
申请日期 |
1998.04.15 |
申请人 |
SHARP KABUSHIKI KAISHA |
发明人 |
OGAWA, SATOSHI;NAGAHAMA, HITOSHI;MORINISHI, YASUHARU;IMAFUKU, TATSUO;OHUCHI, TAKEAKI;ISHIDA, TOSHIHISA;NAKAMURA, TADASHI |
分类号 |
G03G9/08;G03G9/087;(IPC1-7):G03G9/097 |
主分类号 |
G03G9/08 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|