| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an IC label for forgery prevention for, when the IC label for forgery prevention is peeled from an adherend by using heat or an organic solvent, easily judging that the IC label has been peeled from a normal article or the like by making the label itself tarnish or color, and for making it impossible to duplicate the label itself. <P>SOLUTION: This IC label 1 for forgery prevention is configured by forming an IC tag 5 on the back face of a label base material 2, and forming an adhesive layer 6 so that the IC tag 5 can be covered, wherein a heat detection layer 12 which tarnishes due to heat and a solvent coloring layer 3 which colors due to organic solvent are formed on the whole surface of the label base material 2, and a security function layer 7 for preventing duplication is formed at a portion of the surface side of the label base material 2. <P>COPYRIGHT: (C)2009,JPO&INPIT |
