| 摘要 |
PROBLEM TO BE SOLVED: To provide an information hiding card which has a high forgery preventive effect. SOLUTION: The information hiding card comprises an information printing layer 2 formed in a specific area on a card substrate 1, a hiding layer 4 hiding the information printing layer 2, a peeling off layer 3 formed on the information printing layer 2 as a ground of the hiding layer 4 to make the hiding layer 4 peelable, and a woven pattern continuously piled up the peeling off layer 3 and the card substrate 1 around the peeling off layer 3 or a forgery preventive layer 5 printed with a full line pattern. By forming the area of the peeling off layer 3 less than the area of the hiding layer 4, the hiding layer 4 and the forgery preventive layer 5 in an area free of the peeling off layer 3 on the ground come to be left without being peeled off. Then, when an information concealing card is going to be forged, the remained forgery preventive layer 5 and the reformed forgery preventive layer 5 become discontinuous, and the information concealing card can be easily recognized as a forgery card. COPYRIGHT: (C)2007,JPO&INPIT |
