TRISAZO COMPOUND, INK COMPOSITION, AND COLORED OBJECT

Title:

TRISAZO COMPOUND, INK COMPOSITION, AND COLORED OBJECT

Document Type and Number:

WIPO Patent Application WO/2005/054374

Kind Code:

A1

Abstract:

[PROBLEMS] To provide: a black compound which is for use in ink-jet recording or writing utensils, is excellent in ozone resistance, light resistance, moisture resistance, and color rendering, and gives a recording fluid having satisfactory storage stability; and an ink composition containing the compound. [MEANS FOR SOLVING PROBLEMS] The black compound is a trisazo compound represented by the following formula (1) or a salt thereof. (1) [In the formula (1), R¹ and R² each independently represents hydrogen, carboxy, sulfo, hydroxy, a C_1-4 alkyl, C_1-4 alkoxy, or sulfo group optionally substituted by C_1-4 alkoxy, an optionally carboxylated C_1-4 alkoxy group, etc.; and A represents phenyl or naphthyl (provided that the phenyl and naphthyl groups may be substituted by halogeno, carboxy, sulfo, sulfamonyl optionally substituted by alkyl or phenyl, nitro, etc.).]

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Inventors:

MATSUI TAKAHIKO (JP)
OHNO HIROAKI (JP)
YONEDA TAKASHI (JP)
KAWAIDA YOSHIAKI (JP)
SHIRASAKI YASUO (JP)

Application Number:

PCT/JP2004/017556

Publication Date:

June 16, 2005

Filing Date:

November 26, 2004

Export Citation:

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Assignee:

NIPPON KAYAKU KK (JP)
MATSUI TAKAHIKO (JP)
OHNO HIROAKI (JP)
YONEDA TAKASHI (JP)
KAWAIDA YOSHIAKI (JP)
SHIRASAKI YASUO (JP)

International Classes:

B41J2/01; B41M5/00; B41M5/50; B41M5/52; C09B33/22; C09B69/04; C09D11/00; C09D11/322; C09D11/328; (IPC1-7): C09B33/22

Foreign References:

JP2003201412A	2003-07-18
JPS62109872A	1987-05-21

Other References: