| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide latent image printed matter having such excellent image change effects that first significant information is observed under normal light and second significant information is made visible when light is reflected strongly. <P>SOLUTION: The latent image printed matter is obtained by layering: a first image formed by using an ink having the color different from that of a base material; and a second image which is layered on the first image and formed from a transparent or translucent ink having color flip-flop properties. The first image has a first information area, which is formed by arraying a plurality of first elements at a first pitch in a first direction and constitutes the first significant information. The second image has: a solid area formed by solid printing; and a second information area which is formed by arraying a plurality of second elements, comprising white voids in the solid area, at the first pitch in the first direction and constitutes the second significant information. When being observed under diffusely reflected light, the first significant information is made visible, and when being observed under regularly reflected light, the second significant information is made visible. <P>COPYRIGHT: (C)2013,JPO&INPIT |
