发明名称 |
A METHOD OF MANUFACTURE AND OF VERIFICATION OF A SECURITY PAPER |
摘要 |
The part of the security thread exposed in the window has a matt non-reflective appearance and closely matches in colour a portion of the surface surrounding the window, whereby when the thread is viewed in reflected light in the visible spectrum the exposed part of the security thread is unobtrusive. The thread 11 may comprise a substrate 20 with a metallic layer 21 covered by a matt pale yellow coating 22, the yellow coating comprising a luminescent material. |
申请公布号 |
EP0988157(B1) |
申请公布日期 |
2002.09.18 |
申请号 |
EP19980925816 |
申请日期 |
1998.06.03 |
申请人 |
DE LA RUE INTERNATIONAL LIMITED |
发明人 |
KNIGHT, MALCOM, R., M.;REID, DUNCAN, HAMILTON;BRATCHLEY, ROBIN;NUTTON, ANDREW |
分类号 |
B42D15/10;B42D15/00;B44F1/12;G01N21/84;G07D7/12 |
主分类号 |
B42D15/10 |
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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