| 摘要 |
An ink composition and ink set makes a change of image color due to exposure to light incapable of being easily perceived. The ink composition and ink set for an inkjet printer which prints a color image by using three inks of yellow, magenta and cyan colors has features that each of the three colored inks have CIELab hue angles which move in the same direction (clockwise direction or counter-clockwise direction). Accordingly, the ink composition and ink set can maintain the color balance to the maximum even if the ink is faded due to light, thereby preserving the high quality color image for a long period.
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