| 摘要 |
PROBLEM TO BE SOLVED: To provide a simple color image forming sheet capable of obtaining a color image by one operation. SOLUTION: A color image forming sheet 10 has two color regions A1, A2. Both color regions are composed of hue bands of the three primary colors of cyan, magenta and yellow arranged parallel in predetermined order. The printing densities of hues, the widths of the bands and the arranging pitches of them are equal. The ground colors of both color regions are same. The bands of both color regions are mutually parallel and the stripes of adjacent color regions are different in phase and the bands of the color regions A1, A2 are formed so that the positions of the bands of the same color are mutually different with respect to the direction crossing the longitudinal direction of the bands at a right angle. A cover means is adapted to the color image forming sheet 10. By the mixture of the hues of the parts not covered with the cover means, the color regions A1, A2 are observed as mutually different hues. By using one kind of the cover means, different hues can be expressed on the color regions A1, A2 on one color image forming sheet 10. |
