Value document and embossing foil for the production thereof
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United States of America Patent
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Jan 24, 1995
Grant Date -
N/A
app pub date -
Feb 12, 1993
filing date -
Feb 29, 1992
priority date (Note) -
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Abstract
A value document and an embossing foil for the production thereof comprise a security feature in the form of a combination of a magnetic layer and a security layer which has an optical-diffraction effect. The security layer structure that has the optical-diffraction effect is provided with a reflective metal layer. To prevent damage to the reflective metal layer by particles of the magnetic layer, the metal layer is made of suitably resistant metal and/or a barrier layer is provided between the metal layer and the magnetic layer.
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