A trisazo compound represented by the following formula (1) in the free acid form:
wherein Q¹ is a phenylene group, Q² is a phenyl or naphtyl group, one of the A and B is a hydroxy group and the other is an amino group, K is 1 or 2, one of m and n is 1 and the other is 0, X and Y independently of one another are each -OR¹, -SR², -NR³R⁴ or
wherein R¹, R², R³ and R⁴ independently of one another are each a hydrogen atom, an alkyl, phenyl or naphthyl group; r is 1 or 2; and Z is -CH₂-, -O-, -SO₂- or -NR⁵- wherein R⁵ is a hydrogen atom or C₁-C₄ alkyl group;
a method for dyeing fiber material, paper or leather by using the trisazo compound;
and an ink which contains the trisazo compound and which is excellent in storage stability and can give a clear black printed image having excellent water resistance and light fastness.
游离酸形式的下式(1)所代表的三唑类化合物:
其中 Q¹ 为亚苯基,Q² 为苯基或
萘基,A 和 B 中的一个为羟基,另一个为
氨基,K 为 1 或 2,m 和 n 中的一个为 1,另一个为 0,X 和 Y 各自独立地为-OR¹、-SR²、-NR³R⁴ 或
其中 R¹、R²、R³ 和 R⁴ 各自独立地为氢原子、烷基、苯基或
萘基;r 为 1 或 2;以及 Z 为 -CH₂-、-O-、-SO₂- 或 -NR⁵- 其中 R⁵ 为氢原子或 C₁-C₄ 烷基;
一种使用三唑化合物对纤维材料、纸张或皮革进行染色的方法;
以及一种含有三唑化合物的油墨,该油墨具有极佳的储存稳定性,可印制出清晰的黑色图像,并具有极佳的耐
水性和耐光性。