发明名称 Security element with flip-flop color change effect and magnetic properties and method for producing
摘要 In a security printing process, e.g. for bank notes, credit cards or financial instruments, the document incorporates an element consisting of a number of adjacent layers (I, R, M). The layers include a color interference layer (I) and a magnetic layer (M). A reflective layer (R) is especially located between the color shift interference layer (I) and magnetic layer (M). The magnetic layer and reflective layers take the form of patterns, signs or code. The reflective layer incorporates a mirror image legend. The reflective and magnetic layers incorporate a code. An Independent claim is given for manufacture of the invented product.
申请公布号 EP1470001(B1) 申请公布日期 2008.12.24
申请号 EP20030708064 申请日期 2003.01.17
申请人 GIESECKE & DEVRIENT GMBH 发明人 HEIM, MANFRED
分类号 B42D25/00;G02B5/18;G02B5/28;G02B5/32;G03H1/02;G06K19/06 主分类号 B42D25/00
代理机构 代理人
主权项
地址