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1. (WO2013114929) WATER-BASED INK COMPOSITION AND IMAGE FORMATION METHOD

Pub. No.:    WO/2013/114929    International Application No.:    PCT/JP2013/050373
Publication Date: Fri Aug 09 01:59:59 CEST 2013 International Filing Date: Sat Jan 12 00:59:59 CET 2013
IPC: C09D 11/00
B41J 2/01
B41M 5/00
Applicants: FUJIFILM CORPORATION
富士フイルム株式会社
Inventors: NAKANO Ryoichi
中野 良一
SHIMOHARA Norihide
下原 憲英
Title: WATER-BASED INK COMPOSITION AND IMAGE FORMATION METHOD
Abstract:
Provided is a water-based ink composition that offers excellent ejection performance when an image is to be recorded by an inkjet process, offers excellent adhesion of the recorded image onto a recording medium without any landing interference, and makes it possible to obtain a favorably water-resistant, high-quality recording image. A water-based ink composition, comprising: (A) a polymer that has an SP value of 18.6 to 20 and contains 5-45%, by mass, of repeating units (a1) having a hydrophilic group; (B) a pigment; (C) water; and (D) an organic solvent represented by general formula (I).