发明公开
EP1484648A2 Carrier for use in electrophotographic developers, developer prepared by using the carrier and method for forming image
审中-公开
Entwickler,Entwickler und Bildherstellungsverfahren的Trägerfürelektrophotographische
- 专利标题: Carrier for use in electrophotographic developers, developer prepared by using the carrier and method for forming image
- 专利标题(中): Entwickler,Entwickler und Bildherstellungsverfahren的Trägerfürelektrophotographische
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申请号: EP04253342.2申请日: 2004-06-04
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公开(公告)号: EP1484648A2公开(公告)日: 2004-12-08
- 发明人: Kamikoriyama, Yoichi c/o Mitsui Mining & Smelting , Suzuoka, Kenji c/o Mitsui Mining & Smelting Co Ltd , Nakashima, Takashi c/o Mitsui Mining & Smelting , Kinoshita, Kazuya c/o Mitsui Mining & Smelting , Sato, Yuji c/o Powdertech Co., Ltd. , Kobayashi, Hiromichi c/o Powdertech Co., Ltd. , Gondo, Takeshi c/o Powdertech Co., Ltd. , Hikichi, Takashi c/o Powdertech Co., Ltd.
- 申请人: Mitsui Mining & Smelting Co., Ltd , Powdertech Co., Ltd.
- 申请人地址: 11-1, Osaki 1-chome, Shinagawa-ku Tokyo JP
- 专利权人: Mitsui Mining & Smelting Co., Ltd,Powdertech Co., Ltd.
- 当前专利权人: Mitsui Mining & Smelting Co., Ltd,Powdertech Co., Ltd.
- 当前专利权人地址: 11-1, Osaki 1-chome, Shinagawa-ku Tokyo JP
- 代理机构: Calamita, Roberto
- 优先权: JP2003158860 20030604
- 主分类号: G03G9/10
- IPC分类号: G03G9/10 ; G03G9/113
摘要:
Provided are a carrier for electrophotography developers prepared with generating a slight amount of byproducts such as water, alcohol, etc, which carrier is free from release of a magnetic powder, has excellent mechanical strength and durability, and good environmental stability, and further can restrain occurrence of toner spent condition and has favorable fluidity and excellent capability of imparting charging to a toner, a two-component developer comprising the carrier and a method for forming an image using the developer.
The carrier for electrophotography developers of the invention comprises a magnetic powder dispersed binder resin, the binder resin material comprises (A) a polysiloxane compound having an epoxy group as a functional group and (B) a polysiloxane compound having a group capable of ring-opening addition reaction with the epoxy group of the polysiloxane compound (A), and the binder resin is a silicone resin prepared by curing with ring-opening addition reaction of the epoxy resin.
The developer of the invention comprises the carrier for electrophotography developers and the toner particle.
The method for forming an image according to the invention comprises developing a static latent image by the developer with an alternating electric field.
The carrier for electrophotography developers of the invention comprises a magnetic powder dispersed binder resin, the binder resin material comprises (A) a polysiloxane compound having an epoxy group as a functional group and (B) a polysiloxane compound having a group capable of ring-opening addition reaction with the epoxy group of the polysiloxane compound (A), and the binder resin is a silicone resin prepared by curing with ring-opening addition reaction of the epoxy resin.
The developer of the invention comprises the carrier for electrophotography developers and the toner particle.
The method for forming an image according to the invention comprises developing a static latent image by the developer with an alternating electric field.
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