Title:
PROCESS FOR PRODUCING PIGMENT DISPERSION
Document Type and Number:
WIPO Patent Application WO/2018/021120
Kind Code:
A1
Abstract:
A process for producing a pigment dispersion which comprises
a step (A) in which a composition comprising a pigment, a polymeric dispersant, a water-soluble organic solvent, and water is obtained and
a step (B) in which the pigment contained in the composition obtained in the step (A) is dispersed with a dispersing machine to obtain a pigment dispersion,
the pigment comprising a compound represented by the general formula (1) given in the description, a tautomer thereof, or a salt of either,
the polymeric dispersant being a polymer having repeating units represented by the general formula (2-1) given in the description and repeating units represented by the general formula (2-2) given in the description, and
the water-soluble organic solvent being at least one compound selected from among glycerin, ethylene glycol, diethylene glycol, triethylene glycol, polyethylene glycol, 1,3-propanediol, 1,4-butanediol, 1,2-hexanediol, and diglycerol.
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Inventors:
NAGATA YOSHIAKI (JP)
HAYASHI SHINYA (JP)
OMURA KAZUFUMI (JP)
FURUKAWA KAZUSHI (JP)
TATEISHI KEIICHI (JP)
HAYASHI SHINYA (JP)
OMURA KAZUFUMI (JP)
FURUKAWA KAZUSHI (JP)
TATEISHI KEIICHI (JP)
Application Number:
PCT/JP2017/026147
Publication Date:
February 01, 2018
Filing Date:
July 19, 2017
Export Citation:
Assignee:
FUJIFILM CORP (JP)
International Classes:
C09D17/00; B01J13/00; B41J2/01; C09B43/16; C09B67/20; C09B67/46; C09D11/322; C09D11/326; C09K23/52; B41M5/00
Domestic Patent References:
| WO2012011500A1 | 2012-01-26 | |||
| WO2013018680A1 | 2013-02-07 | |||
| WO2009110557A1 | 2009-09-11 |
Foreign References:
| JP2012177110A | 2012-09-13 | |||
| JP2012012503A | 2012-01-19 | |||
| JP2012012505A | 2012-01-19 | |||
| JP2014162875A | 2014-09-08 | |||
| JP2011057732A | 2011-03-24 |
Attorney, Agent or Firm:
KOH-EI PATENT FIRM, P.C. et al. (JP)
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