| 摘要 |
<p>PROBLEM TO BE SOLVED: To obtain an antiforgery paper with high forgery difficulty with an electrophotographic copying machine or the like and suitable for printing negotiable paperbonds by incorporating paper base with threads laminated an optical functional layer, a multi-layer thin film, a printed layer or the like. SOLUTION: This antiforgery paper is obtained by following steps: threads are prepared by laminating an optically functional layer or a multi-layer thin film on a thread base material consisting of a transparent polymer resin film or laminating a printed layer or partially applying a metal layer on one side of the base material and, then, laminating a protective layer or laminating an adhesive layer at least on one side and cutting the resultant film linearly with constant width, the threads are incorporated with a paper layer so as to be partially exposed front and behind of paper and the antiforgery paper is obtained by composing the paper layers overlapping a part or whole of exposed threads.</p> |
