Title:
PIGMENT DISPERSION INCLUDING AZO PIGMENT, AND AQUEOUS INK FOR INKJET RECORDING USING THE SAME
Document Type and Number:
Japanese Patent JP2011057732
Kind Code:
A
Abstract:
To provide an aqueous ink for inkjet recording which keeps a particle size of a pigment dispersion constant, suppresses generation of streaks and irregularities, and gives a uniform printed image even after long-term storage or exposure to high temperature.
The pigment dispersion of vinyl polymer particles includes following components A and B, wherein A is an azo pigment represented by general formula (1) having a specific structural formula with a nitrogen heterocycle, a tautomer thereof, salts thereof, hydrates thereof, or solvates thereof, and B is a vinyl polymer containing a structural unit having a nonaromatic-alicyclic group bonded to a polymer main chain through a linking group and a structural unit having a hydrophilic group.
Inventors:
TANAKA SHIGEAKI
TATEISHI KEIICHI
MORIMOTO KIYOSHI
TOJO KAORU
TATEISHI KEIICHI
MORIMOTO KIYOSHI
TOJO KAORU
Application Number:
JP2009205360A
Publication Date:
March 24, 2011
Filing Date:
September 04, 2009
Export Citation:
Assignee:
FUJIFILM CORP
International Classes:
B41J2/01; B41M5/00; C09B67/20; C09D11/00; C09D11/326; C09D11/38
Domestic Patent References:
| JP2007063520A | 2007-03-15 | |||
| JP2003277662A | 2003-10-02 | |||
| JP2009155605A | 2009-07-16 | |||
| JP2008150408A | 2008-07-03 | |||
| JP2008069325A | 2008-03-27 | |||
| JP2009179799A | 2009-08-13 | |||
| JP2009504832A | 2009-02-05 |
Attorney, Agent or Firm:
Takeshi Takamatsu
Kiyozumi Yazawa
Kiyozumi Yazawa
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