Title:
AZO COMPOUND, INK COMPOSITION, RECORDING METHOD, AND PIGMENT BODY
Document Type and Number:
WIPO Patent Application WO/2014/132926
Kind Code:
A1
Abstract:
The purpose of the present invention is to provide an azo compound represented by formula (1), a tautometer thereof, or a salt of either of these, as a pigment that, when recoding on special paper for inkjet use, has extremely outstanding anti-bronzing properties and moisture resistance, extraordinarily high printing density, outstanding color rendering properties, low color saturation, a high-grade black color phase, and outstanding colorfastness of various kinds, including (ozone) gas resistance and the like. Moreover, another purpose of the present invention is to provide an ink composition containing such a pigment, particularly a black ink composition for inkjet recording. In the formula, R1 represents a (C1-C4) alkyl group or the like, R2 represents a cyano group, R3 and R4 each independently represent a hydrogen atom, a sulfo group, or the like, R5 and R7 each independently represent a (C1-C4) alkylthio group, R6 and R8 each independently represent a (C1-C4) alkylcarbonylamino group, R9 represents a sulfo (C1-C4) alkoxy group, R10 represents a methyl group or the like, and R11-R13 each independently represent a hydrogen atom, a sulfo group, or the like.
Inventors:
ISHIGURO YASUAKI (JP)
ONODERA ANRI (JP)
ONODERA ANRI (JP)
Application Number:
PCT/JP2014/054348
Publication Date:
September 04, 2014
Filing Date:
February 24, 2014
Export Citation:
Assignee:
NIPPON KAYAKU KK (JP)
International Classes:
C09B35/50; B41J2/01; B41M5/00; B41M5/50; B41M5/52; C09D11/00
Domestic Patent References:
| WO2012081640A1 | 2012-06-21 | |||
| WO2008056626A1 | 2008-05-15 | |||
| WO2008096697A1 | 2008-08-14 |
Foreign References:
| JP2011026474A | 2011-02-10 |
Attorney, Agent or Firm:
SHOBAYASHI, Masayuki (JP)
Right wood Masayuki (JP)
Right wood Masayuki (JP)
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