Invention Grant
- Patent Title: Inkjet recording ink
- Patent Title (中): 喷墨记录油墨
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Application No.: US13033466Application Date: 2011-02-23
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Publication No.: US08388125B2Publication Date: 2013-03-05
- Inventor: Taketoshi Okubo , Atsuhito Yoshizawa , Shoji Koike
- Applicant: Taketoshi Okubo , Atsuhito Yoshizawa , Shoji Koike
- Applicant Address: JP Tokyo
- Assignee: Canon Kabushiki Kaisha
- Current Assignee: Canon Kabushiki Kaisha
- Current Assignee Address: JP Tokyo
- Agency: Canon U.S.A. Inc., IP Division
- Priority: JP2010-039064 20100224
- Main IPC: G01D11/00
- IPC: G01D11/00

Abstract:
An inkjet recording ink having a surface tension of 34 mN/m or more is provided. The inkjet recording ink contains an anionic self-dispersion pigment having an anionic functional group, a salt, and a water-soluble compound having a hydrophilicity/hydrophobicity coefficient of 0.26 or more. The ink contains a larger amount of cesium ion than the amount of the anionic functional group. The hydrophilicity/hydrophobicity coefficient is defined by equation (A).
Public/Granted literature
- US20110205285A1 INKJET RECORDING INK Public/Granted day:2011-08-25
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