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1. (WO2018021120) PROCESS FOR PRODUCING PIGMENT DISPERSION

Pub. No.:    WO/2018/021120    International Application No.:    PCT/JP2017/026147
Publication Date: Fri Feb 02 00:59:59 CET 2018 International Filing Date: Thu Jul 20 01:59:59 CEST 2017
IPC: C09D 17/00
B01F 17/52
B01J 13/00
B41J 2/01
C09B 43/16
C09B 67/20
C09B 67/46
C09D 11/322
C09D 11/326
B41M 5/00
Applicants: FUJIFILM CORPORATION
富士フイルム株式会社
Inventors: NAGATA Yoshiaki
永田 美彰
HAYASHI Shinya
林 慎也
OMURA Kazufumi
小村 和史
FURUKAWA Kazushi
古川 和史
TATEISHI Keiichi
立石 桂一
Title: PROCESS FOR PRODUCING PIGMENT DISPERSION
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.