Title:
AZO COMPOUND, INK COMPOSITION, RECORDING METHOD, AND COLORED BODY
Document Type and Number:
WIPO Patent Application WO2010109843
Kind Code:
A1
Abstract:
Provided is an azo compound for a black ink, which is very soluble in a vehicle wherein the primary component is water, remains stable with long-term storage of a highly concentrated aqueous solution and ink, has excellent recorded image fastness, particularly light resistance and ozone gas resistance, and is achromatic and imparts a high-quality black recorded image. Also provided is an ink composition containing the compound. The compound is an azo compound represented by formula (1) (1) a tautomer of the same, or a salt thereof. In formula (1), n is 1, and the like; R1 is a C1-C4 alkyl group, and the like; R2 is a cyano group, and the like; R3 and R4 are each independently a hydrogen atom, sulfo group, and the like; R5 through R7 are each independently hydrogen atoms, sulfo C1-C4 alkyl groups, C1-C4 alkyl groups, and the like; R8 is a sulfo group, and the like; R9 is a hydrogen atom, and the like; R10 is a C1-C4 alkylcarbonyl group, and the like; and R11 is a hydrogen atom, and the like.
Inventors:
MATSUI TAKAHIKO (JP)
KAJIURA NORIKO (JP)
KAJIURA NORIKO (JP)
Application Number:
PCT/JP2010/002027
Publication Date:
September 30, 2010
Filing Date:
March 23, 2010
Export Citation:
Assignee:
NIPPON KAYAKU KK (JP)
MATSUI TAKAHIKO (JP)
KAJIURA NORIKO (JP)
MATSUI TAKAHIKO (JP)
KAJIURA NORIKO (JP)
International Classes:
C09B31/28; B41J2/01; B41M5/00; C09D11/00
Domestic Patent References:
| WO2008096697A1 | 2008-08-14 | |||
| WO2009069279A1 | 2009-06-04 | |||
| WO2009136576A1 | 2009-11-12 | |||
| WO2009078253A1 | 2009-06-25 | |||
| WO2009136575A1 | 2009-11-12 |
Foreign References:
| JP2007517082A | 2007-06-28 | |||
| JP2006509068A | 2006-03-16 | |||
| DE2023295A1 | 1971-11-25 | |||
| DE2004488A1 | 1971-08-05 | |||
| JPS50126716A | 1975-10-06 |
Attorney, Agent or Firm:
SHOBAYASHI, Masayuki (JP)
Right wood Masayuki (JP)
Right wood Masayuki (JP)
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