Invention Grant
- Patent Title: Production process for self-dispersible pigment, self-dispersible pigment, ink, ink cartridge and ink jet recording method
- Patent Title (中): 自分散颜料，自分散颜料，油墨，墨盒和喷墨记录方法的生产工艺
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Application No.: US14748354Application Date: 2015-06-24
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Publication No.: US09403989B2Publication Date: 2016-08-02
- Inventor: Taiki Watanabe , Koichi Suzuki , Ryuji Higashi
- Applicant: CANON KABUSHIKI KAISHA
- Applicant Address: JP Tokyo
- Assignee: Canon Kabushiki Kaisha
- Current Assignee: Canon Kabushiki Kaisha
- Current Assignee Address: JP Tokyo
- Agency: Fitzpatrick, Cella, Harper & Scinto
- Priority: JP2014-133785 20140630
- Main IPC: C09D11/322
- IPC: C09D11/322 ; C09C3/08 ; C09D11/324 ; B41J2/175
Abstract:
The invention provides a production process for a self-dispersible pigment, including a step of bonding a functional group containing a hydrophilic group to a particle surface of a pigment by causing a compound represented by the following general formula (1) (R1 is a halogen atom, R2 is an alkali metal, R3 is a single bond, —CO—, —CONH— or —SO2—, and R4 is a group having at least one of an aliphatic group and an aromatic group and being substituted with a hydrophilic group such as a carboxylic acid group) to react with the particle surface of the pigment:
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Information query
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