| 摘要 |
PROBLEM TO BE SOLVED: To provide line pattern latent image printed material in which neither the presence nor the contents of its latent images can visually be confirmed.SOLUTION: In a printed material with its printing part disposed on base material, the printing part has both line pattern-shaped background pixels and line pattern-shaped latent image pixels, direction of the line pattern forming the background pixels is the same as that of the line pattern forming the latent image pixels, the pitch of the line pattern forming the background pixels and the pitch of the line pattern forming the latent image pixels are mutually formed out of alignment, and further the printed material has noncontinuous part in which the background pixels or the latent image pixels are in the same line pattern direction, and the background pixels or the latent image pixels are unconnected to each other. |
