发明授权
US4822707A Positively chargeable toners for use in dry type electrophotography
comprising a blue dye lake charge control agent
失效
用于干式电子照相术的可积极调色剂,包括蓝色染料色谱柱电荷控制剂
- 专利标题: Positively chargeable toners for use in dry type electrophotography comprising a blue dye lake charge control agent
- 专利标题(中): 用于干式电子照相术的可积极调色剂,包括蓝色染料色谱柱电荷控制剂
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申请号: US756521申请日: 1985-07-18
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公开(公告)号: US4822707A公开(公告)日: 1989-04-18
- 发明人: Satoru Inoue , Akio Matsui
- 申请人: Satoru Inoue , Akio Matsui
- 申请人地址: JPX Tokyo
- 专利权人: Ricoh Co., Ltd.
- 当前专利权人: Ricoh Co., Ltd.
- 当前专利权人地址: JPX Tokyo
- 优先权: JPX59-157251 19840730
- 主分类号: G03G9/08
- IPC分类号: G03G9/08 ; C08K5/18 ; C09B11/12 ; G03G9/09 ; G03G9/097
摘要:
The present invention provides a positively chargeable for use in dry type electrophotography that contains, as a charge controlling agent, a lake (blue pigment) of a compound represented by the general formula: ##STR1## [Wherein, R.sub.1, R.sub.2, R.sub.3, R.sub.4, R.sub.5 and R.sub.6 are H, CnH.sub.2 n+1(n is an integer of 1-5) or ##STR2## These R.sub.1 -R.sub.6 may be the same or different].
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