发明名称 Counterfeit prevention paper and manufacturing method thereof
摘要 The present invention relates to a counterfeit prevention paper and manufacturing method thereof, and more particularly to currency, securities, official document and several certificates, etc. The counterfeit prevention paper according to the present invention comprises a paper and a thermopaint layer which is formed on a paper and is discolored according to a temperature. The counterfeit prevention paper according to the present invention can detect easily a counterfeit by an unaided eye. Also, a function for preventing a counterfeit is not copied by a counterfeit device, thus the counterfeit prevent paper according to the present invention can improve a reliability of various official documents and several certificates, etc.
申请公布号 US8105977(B2) 申请公布日期 2012.01.31
申请号 US20080189074 申请日期 2008.08.08
申请人 KIM KUK-HWAN;CHOI YANG-KYU;YARIMAGA OKTAY;PARK HYUN GYU;KIM TAE WON;JUNG YUN KYUNG;KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY 发明人 KIM KUK-HWAN;CHOI YANG-KYU;YARIMAGA OKTAY;PARK HYUN GYU;KIM TAE WON;JUNG YUN KYUNG
分类号 B41M5/26 主分类号 B41M5/26
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