| 摘要 |
<p>PURPOSE:To provide a sign panel made difficult in forgery/falsifying and also made easy to discriminate forgery/falsifying by forming the sign panel into a double-layered structure. CONSTITUTION:A sign panel is constituted of a first sign panel base material 12 having a desired printing pattern 16 formed on the writing surface thereof, a second sign panel base material 13, the first adhesive layer 14 provided between the first and second sign panel base materials 12, 13 and mutually bonded to both base materials 12, 13 in an interlaminar releasable manner and the second adhesive layer 15 provided to the surface opposite to the first adhesive layer 14 of the second sign panel base material 13. Since the sign panel itself is made difficult to release and a part of the first or second sign panel base materials remains on the other one when the sign panel is ready to be released, it is impossible to release the first and second sign panel base materials without damaging both of them.</p> |
