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Title:
SOLID SOLUTION OF QUINACRIDONE AND INK COMPOSITION CONTAINING SAME
Document Type and Number:
WIPO Patent Application WO/2019/202939
Kind Code:
A1
Abstract:
The problem to be solved by the invention is to provide a quinacridone pigment which is suitable for use in ink-jet inks, etc., has a clear yellowish hue, and has excellent storage stability. The pigment is a quinacridone solid-solution pigment which comprises at least C.I. Pigment Violet 19 and C.I. Pigment Red 122, and is characterized in that in analysis by X-ray diffractometry, the ratio of the intensity of a diffraction peak at a diffraction angle 2θ of 14.8±0.2° to the intensity of a diffraction peak at a diffraction angle 2θ of 11.9±0.2° is 1.20 or less.

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Inventors:
MATSUMURA KENTAROU (JP)
HIGUCHI YUKIKO (JP)
OOTAKE HIDEHIRO (JP)
Application Number:
PCT/JP2019/013575
Publication Date:
October 24, 2019
Filing Date:
March 28, 2019
Export Citation:
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Assignee:
DAINIPPON INK & CHEMICALS (JP)
International Classes:
C09B48/00; C09B67/20; C09B67/52; C09D11/02; C09D11/322
Domestic Patent References:
WO2016208292A12016-12-29
Foreign References:
JP2013528668A2013-07-11
JPH10219166A1998-08-18
JP2006096927A2006-04-13
JP2013223958A2013-10-31
JP2002146224A2002-05-22
JPH1149998A1999-02-23
JP2000281930A2000-10-10
JP2000248189A2000-09-12
Other References:
See also references of EP 3786236A4
Attorney, Agent or Firm:
OGAWA Shinji (JP)
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