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Title:
GREENISH BLUE PIGMENT, COLORANT COMPOSITION CONTAINING SAID PIGMENT, AND IMAGE RECORDING MATERIAL
Document Type and Number:
WIPO Patent Application WO/2013/015180
Kind Code:
A1
Abstract:
The purpose of the present invention is to develop a blue pigment applicable to various image recording methods, said blue pigment being capable of resolving the faults of a conventional phthalocyanine blue pigment in the formation of images and fulfilling a greenish blue color which has high saturation and excellent clearness, brightness, dispersibility, hue, tinting strength and so on. The purpose can be achieved by a greenish blue pigment which contains a pigment that is represented by general formula (I) and that exhibits a greenish blue hue with high saturation. In general formula (I), the number (m) of substituent phthalimidomethyl groups satisfies the relationship 1.0 ≤ m ≤ 5.0 and the number (n) of substituent sulfone groups (R1) satisfies the relationship 0.05 ≤ n ≤ 1.0.

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Inventors:
TSUCHIYA KOJI (JP)
AOBA MASAHIKO (JP)
MATSUMOTO KENJIRO (JP)
TAMAKI TAKESHI (JP)
Application Number:
PCT/JP2012/068264
Publication Date:
January 31, 2013
Filing Date:
July 19, 2012
Export Citation:
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Assignee:
DAINICHISEIKA COLOR CHEM (JP)
TSUCHIYA KOJI (JP)
AOBA MASAHIKO (JP)
MATSUMOTO KENJIRO (JP)
TAMAKI TAKESHI (JP)
International Classes:
C09B47/24; B41J2/01; B41M5/00; C09B67/20; C09B67/46; C09D11/00; G02B5/20; G02B5/22
Foreign References:
US3589924A1971-06-29
US2761868A1956-09-04
JP2002080745A2002-03-19
JPS58203455A1983-11-26
JP2003147224A2003-05-21
JP2008248112A2008-10-16
JPS58203455A1983-11-26
JP2002080745A2002-03-19
JP2009151162A2009-07-09
JP2009173800A2009-08-06
US3589924A1971-06-29
US2761868A1956-09-04
JPH06100787A1994-04-12
JPH02175770A1990-07-09
Other References:
See also references of EP 2735591A4
Attorney, Agent or Firm:
KONDO Rieko et al. (JP)
Kondo Toshihide child (JP)
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Claims:



 
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