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Title:
PIGMENT COMPOSITION, ACTIVE-ENERGY-RAY-CURABLE OFFSET INK, AND METHOD FOR MANUFACTURING PIGMENT COMPOSITION
Document Type and Number:
WIPO Patent Application WO/2021/124744
Kind Code:
A1
Abstract:
The present invention addresses the problem of providing a pigment composition that has good emulsion fluidity in particular while exhibiting high coloring power when used in an ink.　This pigment composition includes a co-lake monoazo pigment of Ca and Sr, and 5.0-20 mass% of an inorganic carbonate. In the co-lake monoazo pigment, the mass ratio of Ca and Sr is preferably 10:90-90:10. The inorganic carbonate is preferably calcium carbonate or magnesium carbonate. This pigment composition is preferably used for an active-energy-ray-curable offset ink.

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Inventors:
YOSHIDA TAKUYA (JP)
MIYASHITA KOSUKE (JP)
KAMON YOSHITO (JP)
KUDO ARATA (JP)
Application Number:
PCT/JP2020/042182
Publication Date:
June 24, 2021
Filing Date:
November 12, 2020
Export Citation:
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Assignee:
DAINIPPON INK & CHEMICALS (JP)
International Classes:
C09B63/00; C09B67/20; C09D11/037
Domestic Patent References:
WO2009081850A12009-07-02
WO2013035776A12013-03-14
Foreign References:
JP2018193453A2018-12-06
JP2018083864A2018-05-31
JPS6322868A1988-01-30
JP2006089608A2006-04-06
JP2008075057A2008-04-03
Attorney, Agent or Firm:
OGAWA Shinji (JP)
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