发明名称 |
SAFETY FEATURE FOR PROTECTING A DOCUMENT AGAINST COUNTERFEIT |
摘要 |
The invention relates to a security element for security paper for banknotes and the like having both aesthetic and anti-counterfeitable qualities. The invention comprises a security element for wholly or partially embedding in security paper comprising an elongate strip of a light transmitting polymeric substrate. The substrate bears a reflective metallic layer on at least one surface thereof in the form of a design. The design comprises at least one repeating geometric pattern of which one of more of the frequency, instantaneous amplitude and/or maximum amplitude of the pattern varies along the length of the element and design having at least one non-linear boundary. |
申请公布号 |
PL335888(A1) |
申请公布日期 |
2000.05.22 |
申请号 |
PL19980335888 |
申请日期 |
1998.03.31 |
申请人 |
DE LA RUE INTERNATIONAL LTD |
发明人 |
ISHERWOOD ROLAND;HASLOP JOHN MARTIN |
分类号 |
B41M3/14;B42D15/00;D21H21/42 |
主分类号 |
B41M3/14 |
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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