METHOD FOR PRODUCING AZO PIGMENT, PIGMENT DISPERSION, COLORING COMPOSITION, METHOD FOR PREPARING INK FOR INKJET RECORDING, COLORING COMPOSITION FOR COLOR FILTER, AND COLOR FILTER

Title:

METHOD FOR PRODUCING AZO PIGMENT, PIGMENT DISPERSION, COLORING COMPOSITION, METHOD FOR PREPARING INK FOR INKJET RECORDING, COLORING COMPOSITION FOR COLOR FILTER, AND COLOR FILTER

Document Type and Number:

Japanese Patent JP2011144298

Kind Code:

A

Abstract:

To provide an azo pigment and a pigment dispersion excellent in color characteristics, such as tinting power and hues, and also excellent in durability, such as light resistance.

This method for producing an azo pigment represented by general formula (1) includes: a step of preparing a solution (A) including an azo compound represented by general formula (1) and an acid or a base or a good solvent including an acid or a base; and a step of precipitating the azo pigment by mixing the solution (A) with a poor solvent, wherein G is a hydrogen atom, an aliphatic group, an aryl group, a heterocyclic group, an acyl group, an aliphatic oxycarbonyl group, a carbamoyl group, an aliphatic sulfonyl group, or an arylsulfonyl group.

Inventors:

AZUMA MASAHIRO
SETO NOBUO
JINBO YOSHIHIRO
TATEISHI KEIICHI

Application Number:

JP2010007532A

Publication Date:

July 28, 2011

Filing Date:

January 15, 2010

Export Citation:

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Assignee:

FUJIFILM CORP

International Classes:

C09B67/20; B41J2/01; B41M5/00; C09B29/20; C09B67/46; C09D11/00; C09D11/322; C09D11/324; C09D11/326; C09D11/38; G02B5/20; G02B5/22

Domestic Patent References:

JPS63158561A	1988-07-01
JPS63148267A	1988-06-21
JPH0427959A	1992-01-30
JPH0488349A	1992-03-23
JPH1036692A	1998-02-10
JPS481216B1
JP2007321106A	2007-12-13
JP2007197490A	2007-08-09
JPH09511278A	1997-11-11
JP2010159409A	2010-07-22
JP2011099060A	2011-05-19
JP2010047750A	2010-03-04
JP2010043256A	2010-02-25
JP2010085979A	2010-04-15

Foreign References:

GB1336898A

1973-11-14

Other References:

JPN6009051190; ＰＯＳＫＯＣＩＬ，Ｊ．　ｅｔ　ａｌ．: 'Ｓｏｍｅ　ｎｅｗ　ｔｒｉａｚｏｌｅ　ｄｙｅｓ' Ｃｈｅｍｉｃｋｙ　ＰｒｕｍｙｓｌＶｏｌ．３２，　Ｎｏ．６, 1982, ｐ．３００-３０７
JPN6009051188; ＳＥＢＥ，Ｉ．　ｅｔ　ａｌ．: 'Ｔｒｉａｚｏ　ｈｅｔｅｒｏｃｙｃｌｉｃ　ｄｉｓｐｅｒｓｅ　ｄｙｅｓ' Ｒｅｖｕｅ　Ｒｏｕｍａｉｎｅ　ｄｅ　ＣｈｉｍｉｅＶｏｌ．４１，　Ｎｏ．１１-１２, 1996, ｐ．９７１-９７７

Attorney, Agent or Firm:

Takeshi Takamatsu
Kiyozumi Yazawa

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