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Title:
INK COMPOSITION FOR INKJET RECORDING, METHOD FOR PRODUCING PRINTED MATTER, AND PRINTING METHOD
Document Type and Number:
WIPO Patent Application WO/2015/129744
Kind Code:
A1
Abstract:
The present invention provides an ink composition for inkjet recording with which high-speed printing is possible while maintaining the quality of printed matter. Provided is an ink composition for inkjet recording containing a coloring material, a binder resin, and an organic solvent, said ink composition being characterized in that: the binder resin includes at least an acrylic resin (A) and a copolymer (B) having a hydroxyalkyl (meth)acrylate-derived structural unit, a structural unit represented by belowmentioned general formula (I), and a structural unit represented by belowmentioned general formula (II), wherein the content ratio, by mass, between the acrylic resin (A) and the copolymer (B) is (A)/(B) = 25/75-70/30, inclusive; the organic solvent includes at least a polyalkylene glycol dialkyl ether and a cyclic ester, wherein the content of the cylic ester is 3-10 parts by mass, inclusive, per 100 parts by mass of the ink composition, and the content of ethylene glycol alkyl ether acetate is at most 5 parts by mass per 100 parts by mass of the ink composition. (The symbols in general formula (I) and general formula (II) are as set forth in the description.)

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Inventors:
OOGAKI MEGUMI (JP)
YOSHIMITSU SHINICHI (JP)
WATANABE KATSUMI (JP)
OKA RYOHEI (JP)
ISHIMA YUKIKO (JP)
IWASAWA KARUNA (JP)
Application Number:
PCT/JP2015/055386
Publication Date:
September 03, 2015
Filing Date:
February 25, 2015
Export Citation:
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Assignee:
DNP FINE CHEMICALS CO LTD (JP)
International Classes:
C09D11/30; B41J2/01; B41M5/00
Foreign References:
JP2013177597A2013-09-09
JP2009227813A2009-10-08
JP2007204718A2007-08-16
JP2008260944A2008-10-30
Other References:
See also references of EP 3112428A4
Attorney, Agent or Firm:
KISHIMOTO, Tatsuhito et al. (JP)
Kishimoto Expert (JP)
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