申请人:Mitsubishi Chemical Corporation
公开号:EP1522559A1
公开(公告)日:2005-04-13
A water-soluble complex dye capable of forming an image having light resistance, ozone resistance and high saturation; a water-based recording fluid, particularly an ink jet recording fluid, employing such a dye; and an ink jet recording method, are presented.
A water-soluble complex dye comprising an azo compound represented by the following formula (1) or its tautomer, and transition metal ions; a water-based recording fluid, particularly an ink jet recording fluid, containing such a dye; and an ink jet recording method employing such a recording fluid.
In the formula (1), A1 is a 5- to 7-membered hetero monocyclic group containing three or four hetero atoms among the ring forming atoms, or a condensed heterocyclic group containing such a hetero monocyclic group and may have an optional substituent, but it represents a group which does not have a hydroxyl group at a position adjacent to the carbon bonded to the azo group; ring X1 represents a condensed hetero ring containing a 6-membered hetero ring, said 6-membered hetero ring being a group bonded to the azo group, and may have an optional substituent; and each of R1 and R2 which are independent of each other, is a hydrogen atom or a monovalent substituent.
本发明提出了一种能够形成具有耐光性、耐臭氧性和高饱和度图像的水溶性复合染料;一种采用这种染料的水基记录液,特别是喷墨记录液;以及一种喷墨记录方法。
一种水溶性络合染料,包含由下式(1)或其同分异构体表示的偶氮化合物和过渡金属离子;一种含有这种染料的水基记录液,特别是喷墨记录液;以及一种采用这种记录液的喷墨记录方法。
在式 (1) 中,A1 是在成环原子中含有三个或四个杂原子的 5 至 7 元杂单环基团,或含有这种杂单环基团的缩合杂环基团,并可具有任选取代基,但它代表在与偶氮基团键合的碳相邻位置上不具有羟基的基团;环 X1 代表含有 6 元杂环的缩合杂环,所述 6 元杂环是与偶氮基键合的基团,可具有任选的取代基;以及 R1 和 R2 中的每一个彼此独立,是氢原子或单价取代基。