Title:
AQUEOUS INKJET INK COMPOSITION
Document Type and Number:
WIPO Patent Application WO/2020/071055
Kind Code:
A1
Abstract:
The present invention addresses the problem of providing an aqueous inkjet ink composition which exhibits excellent ejection stability during the time of high gap, antifouling properties, adhesion, dryability, rubbing resistance and ejection stability even if printed on a non-absorbing medium, while having excellent storage stability. As a solution for the problem, the present invention provides an aqueous inkjet ink composition which contains a pigment, an alkali-soluble resin, a polyolefin resin emulsion, a basic compound, an aqueous medium and a surfactant, and which is configured such that: the alkali-soluble resin has a glass transition temperature of 40-100°C; the polyolefin resin emulsion has an average particle diameter of 5-300 nm; the solid content of the polyolefin resin emulsion is 0.5-5.0% by mass of the aqueous inkjet ink composition; and the surfactant contains at least an acetylene diol-based surfactant.
Inventors:
SATO YOICHI (JP)
KONISHI HIROYUKI (JP)
MORIYASU KAZUKI (JP)
KONISHI HIROYUKI (JP)
MORIYASU KAZUKI (JP)
Application Number:
PCT/JP2019/035205
Publication Date:
April 09, 2020
Filing Date:
September 06, 2019
Export Citation:
Assignee:
SAKATA INX CORP (JP)
International Classes:
C09D11/38; B41J2/01; B41M5/00; C09D11/322
Domestic Patent References:
| WO2015111644A1 | 2015-07-30 | |||
| WO2005116147A1 | 2005-12-08 |
Foreign References:
| JP2016176016A | 2016-10-06 | |||
| JP2011026545A | 2011-02-10 | |||
| JP2011094082A | 2011-05-12 | |||
| JP2011074336A | 2011-04-14 | |||
| JP2015137318A | 2015-07-30 |
Other References:
See also references of EP 3862398A4
Attorney, Agent or Firm:
YAMADA Yasuyuki et al. (JP)
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