发明名称 |
BILL INTO WHICH SAFETY FILAMENT IS BURIED AND MANUFACTURE AND INSPECTION METHOD THEREOF |
摘要 |
<p>In order to increase the protection of security documents such as ban notes, etc., against forgery, security threads are embedded in the document which have at least two areas extending in the longitudinal direction of the thread and differing in their physical properties. The thread is preferably a coextruded multicomponent synthetic thread whose individual components contain additives such as dyes or fluorescent substances and/or particles having electrical or magnetic properties. The testing of the authenticity of the security thread is directed toward the presence of these additives and their mutual geometrical distribution in certain areas of the security thread.</p> |
申请公布号 |
JPS61152494(A) |
申请公布日期 |
1986.07.11 |
申请号 |
JP19850287624 |
申请日期 |
1985.12.20 |
申请人 |
GAO GES AUTOM ORG MBH |
发明人 |
BUITEITSUHI KAURE;JIYURUGEN MORU;GERUHARUTO SHIYUBUENKU;GERUHARUTO SHIYUTENTSUERU |
分类号 |
B43L13/00;B41M3/14;B42D15/00;B42D25/355;D21H21/48;G06K19/10;G06T1/00;G07D7/12 |
主分类号 |
B43L13/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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