申请人:SEIKO EPSON CORPORATION
公开号:EP0911374A1
公开(公告)日:1999-04-28
An ink set is disclosed which comprises at least a black ink, a yellow ink, a magenta ink, and a cyan ink, each of the inks comprising at least a colorant, a water-soluble cationic polymer having a primary amino group in its molecule, and water, the colorant consisting of a coloring material(s) classified into categories of anthraquinone, indigoid, phthalocyanine, carbonium, quinoneimine, methine, quinoline, nitro, nitroso, benzoquinone, naphthoquinone, naphthalimide, and perinone coloring materials. This ink set can realize a full-color image having both good waterfastness and lightfastness. The coloring materials falling within the above categories, even when added, to the ink, in combination with a highly reactive polyallylamine having a primary amino group, can realize an image having good lightfastness while maintaining high waterfastness derived from the addition of the polyallylamine. Further, these colorants are not decomposed upon being attacked by the primary amino group of the polyallylamine and has excellent storage stability.
本发明公开了一套墨水,它至少包括黑色墨水、黄色墨水、品红色墨水和青色墨水,每种墨水至少包括着色剂、分子中含有伯氨基的水溶性阳离子聚合物和水、着色剂包括蒽醌类、靛蓝类、酞菁类、羰基类、醌亚胺类、甲胺类、喹啉类、硝基类、亚硝基类、苯醌类、萘醌类、萘亚胺类和过醌类着色材料。这套油墨可实现具有良好耐水性和耐光性的全彩色图像。属于上述类别的着色剂即使添加到油墨中,与具有伯氨基的高活性聚烯烃胺结合使用,也能实现具有良好耐光性的图像,同时还能保持因添加聚烯烃胺而产生的高耐水性。此外,这些着色剂在受到聚烯丙基胺的伯氨基攻击时不会分解,并具有出色的储存稳定性。