Title:
ACTIVE RAY-CURABLE INKJET INK SET AND INKJET RECORDING METHOD
Document Type and Number:
WIPO Patent Application WO/2019/123564
Kind Code:
A1
Abstract:
The present invention addresses the problem of providing: an active ray-curable inkjet ink set which is composed of a white ink and a colored ink, and which enables the achievement of an inkjet image that has excellent adhesion and excellent rubbing resistance; and an inkjet recording method which uses this active ray-curable inkjet ink set. An active ray-curable inkjet ink set according to the present invention is characterized by being composed of a white ink and a colored ink, each of which contains at least a photopolymerizable compound and a photopolymerization initiator. This active ray-curable inkjet ink set is also characterized in that: the white ink additionally contains titanium oxide; the colored ink additionally contains a colorant; the (mass) ratio of the content of the photopolymerization initiator in the white ink to the content of the photopolymerization initiator in the colored ink, namely (white ink)/(colored ink) is within the range of 0.10-0.90; and the content of the photopolymerization initiator in the white ink relative to the total mass of the ink is within the range of 0.3-2.7% by mass.
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Inventors:
YAMAGUCHI GO (JP)
IKEDA MASASHI (JP)
IKEDA MASASHI (JP)
Application Number:
PCT/JP2017/045700
Publication Date:
June 27, 2019
Filing Date:
December 20, 2017
Export Citation:
Assignee:
KONICA MINOLTA INC (JP)
International Classes:
C09D11/38; B41M5/00; C09D11/322; C09D11/40
Domestic Patent References:
| WO2016098678A1 | 2016-06-23 |
Foreign References:
| JP2003251935A | 2003-09-09 | |||
| JP2009263599A | 2009-11-12 | |||
| JP2011218794A | 2011-11-04 | |||
| JP2009041015A | 2009-02-26 | |||
| JP2001220526A | 2001-08-14 | |||
| JP2001310937A | 2001-11-06 | |||
| JP2005255821A | 2005-09-22 | |||
| JP2005255821A | 2005-09-22 | |||
| JP2005126507A | 2005-05-19 | |||
| JP2010111790A | 2010-05-20 |
Other References:
"MedChem Software", August 1991, MEDICINAL CHEMISTRY PROJECT, POMONA COLLEGE
"Chem Draw Ultra", April 2003, CAMBRIDGESOFT CORPORATION
C. HANSCHA. LEO: "Substituent Constants for Correlation Analysis in Chemistry and Biology", 1969, JOHN WILEY & SONS
"Organic Materials for Imaging", 1993, BUNSHIN PUBLISHING COMPANY, pages: 187 - 192
See also references of EP 3730559A4
"Chem Draw Ultra", April 2003, CAMBRIDGESOFT CORPORATION
C. HANSCHA. LEO: "Substituent Constants for Correlation Analysis in Chemistry and Biology", 1969, JOHN WILEY & SONS
"Organic Materials for Imaging", 1993, BUNSHIN PUBLISHING COMPANY, pages: 187 - 192
See also references of EP 3730559A4
Attorney, Agent or Firm:
KOYO INTERNATIONAL PATENT FIRM (JP)
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