Title:
INK, INK CARTRIDGE, AND INK JET RECORDING METHOD
Document Type and Number:
WIPO Patent Application WO/2013/168408
Kind Code:
A1
Abstract:
The present invention provides an ink that can achieve image characteristics for recording an image having excellent optical density, bleeding resistance, and white blur resistance and also can achieve reliability that provides excellent sticking resistance to a recording head. The ink is one for ink jet containing a first pigment and second pigment. The first pigment is a self-dispersible pigment to a surface of a particle of which a first functional group containing a phosphonic acid group is bonded. The second pigment is a self-dispersible pigment to a surface of a particle of which a second functional group not containing a phosphonic acid group but containing an anionic group other than the phosphonic acid group, and further containing another atomic group is bonded. The introduced amount of the functional group of the second pigment is 0.25 mmol/g or more.
Inventors:
NAGAI SOUICHI (JP)
OGASAWARA MASASHI (JP)
GOUDA KEIGO (JP)
FUJIOKA FUMIAKI (JP)
YASUDA AKIKO (JP)
OGASAWARA MASASHI (JP)
GOUDA KEIGO (JP)
FUJIOKA FUMIAKI (JP)
YASUDA AKIKO (JP)
Application Number:
PCT/JP2013/002934
Publication Date:
November 14, 2013
Filing Date:
May 07, 2013
Export Citation:
Assignee:
CANON KK (JP)
International Classes:
C09D11/00; B41J2/01; B41M5/00
Domestic Patent References:
| WO2007053564A2 | 2007-05-10 |
Foreign References:
| JP2012052097A | 2012-03-15 | |||
| JP2000198955A | 2000-07-18 |
Other References:
None
Attorney, Agent or Firm:
ABE, Takuma et al. (30-2 Shimomaruko 3-chome, Ohta-k, Tokyo 01, JP)
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