Title:
WATER-SOLUBLE AZO COMPOUND OR SALT THEREOF, INK COMPOSITION, AND COLORED BODY
Document Type and Number:
WIPO Patent Application WO/2016/021730
Kind Code:
A1
Abstract:
The purpose of the present invention is to provide: a water-soluble yellow colorant (compound) that is highly-soluble in water, has excellent light fastness, and has excellent coloring properties such as saturation and print density; a yellow ink composition containing the yellow colorant, said composition being used in various recording applications, particularly ink jet recording; and a colored body that has been colored by the ink composition. Specifically disclosed is an azo compound represented by the formula (1a) or a salt thereof. (In the formula: A1, A2 and T each independently represent a water-soluble substituent; each Q independently represents a hydrogen atom, a halogen atom, a sulfo group, or the like; each R independently represents a halogen atom, a C1-4 alkoxy group, or the like; y represents 0 or 1, and z represents 0 or 1, where y + z = 1; x represents an integer from 2 to 4; and a and b represent the substitution positions of A1, A2, or R.)
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Inventors:
NAGATSUKA SHINYA (JP)
UMEDA MARIKO (JP)
MASEGI JUNYA (JP)
UMEDA MARIKO (JP)
MASEGI JUNYA (JP)
Application Number:
PCT/JP2015/072586
Publication Date:
February 11, 2016
Filing Date:
August 07, 2015
Export Citation:
Assignee:
NIPPON KAYAKU KK (JP)
International Classes:
C09B43/124; B41J2/01; B41M5/00; B41M5/50; B41M5/52; C09D11/00; C09D11/32
Domestic Patent References:
| WO2011122426A1 | 2011-10-06 |
Foreign References:
| JP2012167154A | 2012-09-06 | |||
| JP2004075767A | 2004-03-11 |
Attorney, Agent or Firm:
SHOBAYASHI, Masayuki (JP)
Right wood Masayuki (JP)
Right wood Masayuki (JP)
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