发明名称 |
TONER FOR ELECTROSTATIC IMAGE DEVELOPMENT |
摘要 |
Provided is a toner for electrostatic image development, having low-temperature fixability and long-term stable charge property and also having heat-resistant storage stability. The toner for electrostatic image development includes toner particles containing a binder resin. The binder resin has a domain-matrix structure in which a crystalline polyester resin is dispersed as a domain phase in a matrix phase formed of an amorphous vinyl polymer formed using at least a vinyl-based monomer. The amorphous vinyl polymer has a carboxy group concentration of not less than 0.2 mmol/g and not more than 1.0 mmol/g, and the crystalline polyester resin has an ester group concentration of not less than 0.1 mmol/g and not more than 7.1 mmol/g. |
申请公布号 |
US2014287354(A1) |
申请公布日期 |
2014.09.25 |
申请号 |
US201414215721 |
申请日期 |
2014.03.17 |
申请人 |
Konica Minolta, Inc. |
发明人 |
KAWAMURA Takaki;NAGASAWA Hiroshi;MATSUSHIMA Kaori;MATSUOKA Masahiro;SHIRAI Aya;AMEMIYA Taiki |
分类号 |
G03G9/087 |
主分类号 |
G03G9/087 |
代理机构 |
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代理人 |
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主权项 |
1. A toner for electrostatic imago development, comprising toner particles containing a binder resin, wherein
the binder resin has a domain-matrix structure in which a crystalline polyester resin is dispersed as a domain phase in a matrix phase composed of an amorphous vinyl polymer formed using at least a vinyl-based monomer, wherein the amorphous vinyl polymer has a carboxy group concentration of not less than 0.2 mmol/g and not more than 1.0 mmol/g, and the crystalline polyester resin has an ester group concentration of not less than 0.1 mmol/g and not more than 7.1 mmol/g. |
地址 |
Tokyo JP |