| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an ink set having extremely high image durability, an ink cartridge, and an inkjet recording ink cartridge. <P>SOLUTION: The ink set is composed of ink compositions of the three primary colors of cyan, magenta and yellow and, in addition, at least one ink composition except the three primary colors, and each ink composition comprises at least a dye, and at least one of the above ink compositions of the three primary colors comprises at least one polymer selected from the group consisting of an oxidation-resistant polymer, an association promoting polymer, and an aminic polymer which have a mass average molecular weight of ≥3,000, and the content of the above polymer present in the ink composition comprising the least amount of the above polymer in the ink compositions of the three primary colors is more than any content (including 0) of the above polymer present in the at least one ink composition other than the above ink compositions of the three primary colors. <P>COPYRIGHT: (C)2006,JPO&NCIPI |
