发明名称 |
Sikkerhedsprodukt, en film og en fremgangsmåde til fremstilling af et sikkerhedsprodukt |
摘要 |
The present invention provides in a first aspect a method of manufacture of a security product suitable for use with security articles including security paper such as that used for banknotes, wherein a magnetic metal (10) is deposited on a film of polymeric substrate as the substrate passes through a solution containing the magnetic metal, and a preparatory operation is carried out on a surface of the substrate prior to immersion of the substrate in the solution, characterised in that the preparatory operation ensures that magnetic metal (10) is deposited on the substrate in a chosen pattern such that when the security product is produced from the film by cutting the film, the magnetic metal (10) on the security thread has a specific pattern and provides both a visual discernible security feature and a magnetically detectable security feature. The present invention provides in a second aspect a security product for security paper such as banknotes, the security thread comprising a polymeric substrate, catalytic material covering at least a portion of one surface of the polymeric substrate, and a layer of electrolessly deposited magnetic metal (10) covering at least a portion of the catalytic material with a depth in the range 0.01-3.0 mu m. |
申请公布号 |
DK0773872(T3) |
申请公布日期 |
1999.06.28 |
申请号 |
DK19950927043T |
申请日期 |
1995.07.28 |
申请人 |
PORTALS LIMITED |
发明人 |
KNIGHT, MALCOLM ROBERT MURRAY;REID, DUNCAN HAMILTON;HARRISON, JEFFREY ALFRED |
分类号 |
B42D15/00;B44F1/12;D21H;D21H21/42;D21H27/00;G07D7/00;G07D7/04;(IPC1-7):B42D15/00 |
主分类号 |
B42D15/00 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|