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(11) | EP 0 093 009 A3 |
| (12) | EUROPEAN PATENT APPLICATION |
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| (54) | Sheet element having a reflective anti-counterfeiting device and manufacture thereof |
| (57) The present invention provides a method for the manufacture of a sheet element 1
having a reflective anti-counterfeiting device 2 and in particular provides a method
for the manufacture of a security document. The method comprises the steps of applying
a continuous band of a foil material in the form of a repetitive pattern to a portion
of the surface of the sheet element and overprinting at least a part of the foil material
with a security tint 3. The present invention envisages the use of hot foil stamping or a similar method such as a transfer process to apply a metallic foil or similarly reflective film on to a surface of the material to be used for printing a security document. The present invention provides security documents having improved protection against counterfeiting and is particularly applicable to the manufacture of bank notes. |