摘要 |
<p>[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 triazo compound represented by the following formula (1)
or a salt thereof. (1) [In the formula (1), R 1 and R 2 each independently represents hydrogen, carboxy, sulfo, hydroxy, a C 1-4 alkyl, G 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.).]</p> |
申请人 |
NIPPON KAYAKU KABUSHIKI KAISHA |
发明人 |
MATSUI, TAKAHIKO;OHNO, HIROAKI;YONEDA, TAKASHI;KAWAIDA, YOSHIAKI;SHIRASAKI, YASUO |