Title:
NONAQUEOUS INKJET INK
Document Type and Number:
WIPO Patent Application WO/2018/066539
Kind Code:
A1
Abstract:
The present invention provides a nonaqueous inkjet ink which has excellent printing properties such as continuous ejection stability, while having good storage stability, and which is mainly suitable for printing on vinyl chloride substrates and enables the achievement of a printed material that has excellent gloss and endurance. One embodiment of the present invention provides a nonaqueous inkjet ink which contains an organic solvent, a pigment and a vinyl chloride-vinyl acetate copolymer resin, and which is characterized in that: the weight average absolute molecular weight (|Mw|) of the vinyl chloride-vinyl acetate copolymer resin is 20,000 to 40,000; the ratio of the weight average absolute molecular weight (|Mw|) to the number average absolute molecular weight (|Mn|), namely (|Mw|/|Mn|) is from 1.3 to 2.2 (inclusive); and the vinyl chloride-vinyl acetate copolymer resin is an emulsion polymerization product of a vinyl chloride monomer and a vinyl acetate monomer.
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Inventors:
ASAI TARO (JP)
YAMADA KOHEI (JP)
SASAKI HIROSHI (JP)
YAMADA KOHEI (JP)
SASAKI HIROSHI (JP)
Application Number:
PCT/JP2017/035925
Publication Date:
April 12, 2018
Filing Date:
October 03, 2017
Export Citation:
Assignee:
TOYO INK SC HOLDINGS CO LTD (JP)
TOYO INK CO LTD (JP)
TOYO INK CO LTD (JP)
International Classes:
C09D11/36; B41J2/01; B41M5/00; C09D11/322
Domestic Patent References:
| WO2016132640A1 | 2016-08-25 |
Foreign References:
| JP2016160419A | 2016-09-05 | |||
| JP2015067763A | 2015-04-13 | |||
| JP2005200469A | 2005-07-28 | |||
| JP2016121343A | 2016-07-07 | |||
| JP2008101203A | 2008-05-01 | |||
| JP2011178987A | 2011-09-15 |
Attorney, Agent or Firm:
MIYOSHI Hidekazu et al. (JP)
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