发明授权
US08449097B2 Aqueous pigment dispersion, ink composition, and image forming method
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水性颜料分散体，油墨组合物和成像方法
- 专利标题： Aqueous pigment dispersion, ink composition, and image forming method
- 专利标题（中）： 水性颜料分散体，油墨组合物和成像方法
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申请号： US12889424申请日： 2010-09-24
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公开(公告)号： US08449097B2公开(公告)日： 2013-05-28
- 发明人: Naoko Nishimura , Misato Sasada , Tomoko Kuwabara
- 申请人： Naoko Nishimura , Misato Sasada , Tomoko Kuwabara
- 申请人地址： JP Tokyo
- 专利权人： FUJIFILM Corporation
- 当前专利权人： FUJIFILM Corporation
- 当前专利权人地址： JP Tokyo
- 代理机构： SOLARIS Intellectual Property Group, PLLC
- 优先权： JP2009-221362 20090925; JP2010-212854 20100922
- 主分类号： B41J2/01
- IPC分类号： B41J2/01
摘要：
An aqueous pigment dispersion including: (A) a pigment; (B) a dispersion polymer having a neutralization degree of from 50% to 90% and a solubility of from 0.2 g to 0.8 g per 5 ml of water (25° C.), and containing an acidic group and a hydrophobic structural unit (a) having an aromatic ring linked via a linking group to an atom included in a main chain, a content ratio of the aromatic ring being from 10% by mass to less than 20% by mass based on a total mass of the polymer; and (C) a water-based liquid medium.
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