申请人:SUMITOMO CHEMICAL COMPANY, LIMITED
公开号:EP0481449A2
公开(公告)日:1992-04-22
An ink composition for ink jet recording, which contains a water-soluble dye, an organic solvent and water, in which the dye is represented by the formula (1) as shown in the state of free acid:
D - (SO₂CH₂CH₂SO₃H)m (1)
wherein D represents a dye residue selected from the group of monoazo and polyazo dyes, their complexes with Cr, Fe, Co and Cu, copper and nickel phthalocyanine dyes, anthraquinone dyes, dioxazine dyes, and formazane complex dyes, and m represents an integer of 1, 2, 3 or 4, and which is superior in its stability during preservation and while being used, thermal stability, image clearness, water resistivity, light fastness, etc.
一种用于喷墨记录的墨水组合物,它含有一种水溶性染料、一种有机溶剂和水,其中染料由式(1)表示,如游离酸状态所示:
D - (SO₂CH₂CH₂SO₃H)m (1)
其中 D 代表一种染料残留物,选自单偶氮和多偶氮染料、它们与 Cr、Fe、Co 和 Cu 的络合物、铜和镍酞菁染料、蒽醌染料、二噁嗪染料和甲臢嗪络合物染料,m 代表 1、2、3 或 4 的整数,并且在保存和使用过程中的稳定性、热稳定性、图像清晰度、耐水性、耐光牢度等方面更优越。