发明名称 |
SECURITY PAPER, PRODUCTION METHOD THEREOF AND SECURITY DOCUMENT PRODUCED FROM SAME |
摘要 |
The invention consists in a security paper, as well as the security document obtained with it and the manufacturing process thereof, that combines the security elements called windowed thread with the high contrast single-tone watermark technique. In order to carry out this invention, we make use of the recesses created to cover the thread in the areas where it is visible, which exhibit a greater accumulation of fibres and are therefore opaque areas in the final paper, to insert therein the electrotype or high contrast single-tone watermarks. |
申请公布号 |
PT2275602(E) |
申请公布日期 |
2014.05.27 |
申请号 |
PT20090717020T |
申请日期 |
2009.03.06 |
申请人 |
FABRICA NACIONAL DE MONEDA Y TIMBRE - REAL CASA DE LA MONEDA |
发明人 |
VICENTE GARCIA JUEZ;CARLOS GARCIA CUADRADO |
分类号 |
D21H21/42;D21F1/44;D21H21/48 |
主分类号 |
D21H21/42 |
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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