发明申请
US20060100311A1 Aqueous ink, ink-jet recording method, ink cartridge, recording unit, ink-jet recording apparatus and image forming method
有权
水墨,喷墨记录方法,墨盒,记录单元,喷墨记录装置和图像形成方法
- 专利标题: Aqueous ink, ink-jet recording method, ink cartridge, recording unit, ink-jet recording apparatus and image forming method
- 专利标题(中): 水墨,喷墨记录方法,墨盒,记录单元,喷墨记录装置和图像形成方法
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申请号: US11313785申请日: 2005-12-22
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公开(公告)号: US20060100311A1公开(公告)日: 2006-05-11
- 发明人: Yui Tokuda , Miko Sanada , Yoshihisa Takizawa , Masashi Ogasawara , Tomonari Watanabe , Takashi Imai , Yasuhiro Nito , Tetsu Iwata , Shinichi Hakamada , Sadayuki Sugama
- 申请人: Yui Tokuda , Miko Sanada , Yoshihisa Takizawa , Masashi Ogasawara , Tomonari Watanabe , Takashi Imai , Yasuhiro Nito , Tetsu Iwata , Shinichi Hakamada , Sadayuki Sugama
- 申请人地址: JP 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: JP Tokyo
- 优先权: JP2004-189906 20040628; JP2004-189910 20040628; JP2004-190554 20040628
- 主分类号: C09D11/00
- IPC分类号: C09D11/00 ; C09D11/02
摘要:
Disclosed is an aqueous ink comprising at least water, a plurality of water-soluble organic solvents and a coloring material. The coloring material is a pigment, and, it contains a pigment particle having at least one ionic group bonded to a surface of the pigment particle directly or via another atomic group. The plurality of water-soluble organic solvents have a good medium or good mediums for the pigment and a poor medium or poor mediums for the pigment. The poor medium does not solvate perfectly or substantially the pigment. The ionic group undergoes perfectly or substantially no ionic dissociation in the poor medium. Also, among the respective Ka values of the plurality of water-soluble organic solvents as determined by the Bristow method, the Ka value of the poor medium is maximum.