| 摘要 |
PROBLEM TO BE SOLVED: To provide an anticounterfeit printed matter requiring anticounterfeit or duplication prevention of valuable certificates such as bank notes, stock certificates and bonds, various certificates, important documents, and the like.SOLUTION: An anticounterfeit printed matter includes a visible image and at least one invisible image. In more details, the anticounterfeit printed matter includes at least a visible image observable in a visible light, and an invisible image observed by superposing a discrimination tool on the printed matter, by regularly forming a plurality of units having an invisible image element formed by a general coloring material, a concealment element making an invisible image invisible in a visible image, and a visible image element. |
