| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a security thread which has a simple structure and bright glossiness. <P>SOLUTION: The security thread is formed by forming a metallic glossy thin film layer partially on one surface of a transparent base material, laminating and interfacing a black or dark magnetic layer having the same shape as the metallic glossy thin film layer on the metallic glossy thin film layer, and laminating an ultraviolet fluorescence emission layer on the magnetic layer. <P>COPYRIGHT: (C)2012,JPO&INPIT |
