| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a counterfeit-prevented paper having an OVD (optical variable device) included in the paper by papermaking, and capable of imparting verification function without damaging the image of the OVD. <P>SOLUTION: The counterfeit-prevented paper has the OVD part 20 on a base material 10. The OVD part 20 is composed of a thread obtained by laminating an OVD layer 2 on a supporter 31, and cutting the laminate so as to have a narrow width, and included in the paper so that the supporter 31 side may present at the front surface side by the papermaking. The OVD layer 2 transmits light, and a verification functional layer 1 of an information pattern by which the verification can be carried out is formed by a fluorescent ink or the like between the supporter layer 31 and the OVD layer 2. <P>COPYRIGHT: (C)2005,JPO&NCIPI</p> |
