Metallised security element

Details Metallised security element Metallised security element

2011-03-15

2011-03-15

Pritchett, Joshua L (Department: 2872)

Optical: systems and elements

Diffraction

From grating

C359S576000, C359S002000

Reexamination Certificate

active

07907339

ABSTRACT:
The invention concerns a security element (11) in the form of a multi-layer film body, a security document having such a security element and a process for the production of such a security element. The film body on a carrier film (10) has a release layer (20), a protective lacquer layer (21), a replication lacquer layer (22) with relief structures (25, 26), a metal layer (23) and an adhesive layer (24). A first relief structure (25) has a depth-to-width ratio of >0.5, whereby the metal layer (23) is more transparent in the region of the first relief structure (25). A second relief structure (26) has a low depth-to-width ratio whereby the metal layer (23) is less transparent or is opaque in the region of the second relief structure (26).

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