| 摘要 |
PROBLEM TO BE SOLVED: To provide a set of duplication sheets which is composed of an upper sheet and a lower sheet and enables visible information to appear on the invisible information emerging part of the lower sheet corresponding to the pressing part of the upper sheet, if this specified pressing part is pressed. SOLUTION: This set of duplication sheets consists of an upper sheet 2 stacked on a lower sheet 3 in separable manner, and has a specified part, on the back face of the upper sheet 2, which contains invisible information consisting of a character, numeral, symbol and pattern applied, in a mirror image form, using a coating liquid containing a color coupler microcapsule. In addition, an invisible information emerging part D formed of an applied color developer B is formed on a spot corresponding to the invisible information on the front face of the lower sheet 3. |
