Title:
PIGMENT COMPOSITION AND PRINTING INK
Document Type and Number:
WIPO Patent Application WO/2019/003693
Kind Code:
A1
Abstract:
The purpose of the present invention is to provide a dioxazine violet pigment composition having an excellent dispersion stability, and more specifically, to provide a dioxazine violet pigment composition by which the suppression of thickening is achieved in practical use even in any one among (1) a viscosity over time as a base ink when used for printing ink, and (2) a viscosity when the base ink is diluted with ethyl acetate or varnish. To achieve the purpose, the present invention provides a pigment composition characterized by containing a dioxazine violet pigment (C. I. pigment violet 23) and a polyvalent metal inorganic salt.
Inventors:
KIKUCHI HIROMASA (JP)
OSHIUMI ISAO (JP)
IGAWA NOBUO (JP)
OSHIUMI ISAO (JP)
IGAWA NOBUO (JP)
Application Number:
PCT/JP2018/019053
Publication Date:
January 03, 2019
Filing Date:
May 17, 2018
Export Citation:
Assignee:
DAINIPPON INK & CHEMICALS (JP)
International Classes:
C09B19/00; C09B67/20; C09D11/037; C09D17/00
Foreign References:
| JPS63146966A | 1988-06-18 | |||
| JP2011162662A | 2011-08-25 | |||
| JP2010531251A | 2010-09-24 | |||
| JP2015010144A | 2015-01-19 | |||
| JPS5817167A | 1983-02-01 | |||
| JP2009292991A | 2009-12-17 | |||
| JP2010083997A | 2010-04-15 | |||
| JPH0598178A | 1993-04-20 |
Other References:
See also references of EP 3647374A4
Attorney, Agent or Firm:
OGAWA Shinji (JP)
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