发明名称 |
Developing agent and method for producing developing agent |
摘要 |
The method for producing a developing agent according to the invention contains subjecting the toner material dispersion liquid to mechanical shearing to make the granular mixture into fine particles, thereby providing a dispersion liquid containing fine particles having a smaller particle diameter than a particle diameter of the granular mixture. The toner material dispersion liquid is subjected to mechanical shearing under a temperature of a glass transition point Tg of the binder resin or more and a pressure of 10 MPa or more, and the resulting dispersion liquid containing the fine particles is depressurized with two or more stages while maintaining the temperature of a glass transition point Tg of the binder resin or more and then cooled to a temperature of a glass transition point Tg of the binder resin or less. |
申请公布号 |
US8227167(B2) |
申请公布日期 |
2012.07.24 |
申请号 |
US20090500085 |
申请日期 |
2009.07.09 |
申请人 |
ITOU TSUYOSHI;AOKI TAKAYASU;URABE TAKASHI;NODA YASUHITO;UDO MOTONARI;ARAKI SATOSHI;IKUTA MASAHIRO;HARA TAKAFUMI;MATSUMOTO ASUMI;KABUSHIKI KAISHA TOSHIBA;TOSHIBA TEC KABUSHIKI KAISHA |
发明人 |
ITOU TSUYOSHI;AOKI TAKAYASU;URABE TAKASHI;NODA YASUHITO;UDO MOTONARI;ARAKI SATOSHI;IKUTA MASAHIRO;HARA TAKAFUMI;MATSUMOTO ASUMI |
分类号 |
G03G9/08 |
主分类号 |
G03G9/08 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|