发明授权
- 专利标题： Toner for developing electrostatic images containing aromatic hydroxycarboxylic acid and metal compound of the aromatic hydroxycarboxylic acid
- 专利标题（中）： 用于显影含有芳族羟基羧酸的静电图像和芳族羟基羧酸的金属化合物的调色剂
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申请号： US640077申请日： 1996-04-30
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公开(公告)号： US5747209A公开(公告)日： 1998-05-05
- 发明人: Tsuyoshi Takiguchi , Kenji Okado , Masaaki Taya , Ryoichi Fujita , Makoto Kanbayashi , Kohji Inaba , Wakashi Iida , Kazunori Kato , Tetsuya Ida , Shinya Yachi
- 申请人： Tsuyoshi Takiguchi , Kenji Okado , Masaaki Taya , Ryoichi Fujita , Makoto Kanbayashi , Kohji Inaba , Wakashi Iida , Kazunori Kato , Tetsuya Ida , Shinya Yachi
- 申请人地址： JPX Tokyo
- 专利权人： Canon Kabushiki Kaisha
- 当前专利权人： Canon Kabushiki Kaisha
- 当前专利权人地址： JPX Tokyo
- 优先权： JPX7-131189 19950502; JPX8-123921 19960423
- 主分类号： G03G9/083
- IPC分类号： G03G9/083 ; G03G9/087 ; G03G9/09 ; G03G9/097 ; G03G9/00
摘要：
A toner for developing electrostatic images is formed of toner particles comprising (a) a binder resin, (b) a colorant or magnetic material, (c) an aromatic hydroxycarboxylic acid (A), and (d) a metal compound of the aromatic hydroxycarboxylic acid (A). The aromatic hydroxycarboxylic acid (A) and the metal compound of the aromatic hydroxycarboxylic acid (A) are contained in a weight ratio of 1:99 to 10:90. As a result of co-inclusion of a small amount of the aromatic hydroxycarboxylic acid (A) in addition to the metal compound thereof, the resultant toner is provided with a quick chargeability in a low humidity environment and an improved level of triboelectric charge in a high humidity environment, presumably because of the stabilization effect of the small amount of the aromatic hydroxycarboxylic acid (A) on the metal compound thereof.