| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a forgery prevention sheet in which a pseudo thread is printed on a lower layer sheet and the pseudo thread is concealed by an upper layer sheet.SOLUTION: A forgery prevention sheet configured by using a pseudo thread 10 has such a multi-layer structure that an upper layer sheet 20 and a lower layer sheet 40 are laminated, the pseudo thread 10 is a print layer printed on at least one side of the upper layer sheet 20 and the lower layer sheet 40 and a printed pattern printed as the pseudo thread 10 can be viewed by seeing through the forgery prevention sheet.</p> |
