NOVEL AZO COMPOUND OR SALT, INK COMPOSITION CONTAINING SUCH AZO COMPOUND, AND COLORED MATERIAL
申请人:NIPPON KAYAKU KABUSHIKI KAISHA
公开号:EP1837377A1
公开(公告)日:2007-09-26
[Method for solving the problems]
The present invention relates to an azo compound represented by the following Formula (1) in free acid form or a salt thereof,
(wherein, D represents a residual group of aromatic ring or heterocyclic diazo components, R1 represents a hydrogen atom, a C1 to C4 alkyl group or a trifluoromethyl group, R2 represents a hydrogen atom, a cyano group or a carbamoyl group, R3, R4, R5 and R6 may be the same or different respectively and each represents a hydrogen atom, a C1 to C4 alkyl group substituted by a sulfonic acid group or a carboxyl group) and an ink composition characterized by comprising the same, and said composition is excellent in storage stability, exhibits orange color by itself and hue with highly vividness when used for inkjet recording, provides strong fastnesses such as light fastness and ozone fastness of a recorded article, and is suitable for inkjet recording.
本发明涉及一种以游离酸形式或其盐形式表示的偶氮化合物,其由以下式(1)表示,
(其中,D代表芳香环或杂环偶氮组分的残基,R1代表氢原子、C1到C4烷基或三氟甲基,R2代表氢原子、氰基或氨基甲酰基,R3、R4、R5和R6可以分别相同或不同,每个代表氢原子、由磺酸基或羧基取代的C1到C4烷基)以及由此组成的油墨组合物,所述组合物在储存稳定性方面表现出色,单独呈橙色,并在用于喷墨记录时具有高度生动的色调,提供了记录物品的耐光性和耐臭氧性等强大的牢固性,并适用于喷墨记录。