Laser Transfer of Security Features
OwnerSylke Klein, Klaus-Christian Ullmanninventors
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Abstract
The present invention relates to a process for increasing the counterfeiting protection of high-value products, documents of value and security documents by means of uncopyable security features which are transferred into the respective material with the aid of laser technology.
Claims18
Process for the flexible and individual labelling of products, documents of value and security documents with counterfeiting- and copy-proof features, characterised in that uncopyable security features are incorporated into a layer system and transferred into or onto the product, document of value or security document by means of laser radiation.
Support-film system comprising at least four layers lying one on top of the other, where the first layer is a support film (1) which is transparent to laser light, to which an energy-absorber layer (2) which is sensitive to laser light is applied, subsequently the detachment layer (3), optionally a sealing layer (4), the inscription medium (5) and optionally an adhesive layer (6) as the final layer is applied, characterised in that the inscription medium comprises uncopyable security features.
Support-film system comprising at least three layers lying one above the other, where the first layer is a support film (7) which is transparent to laser light and comprises one or more energy absorbers which are sensitive to laser light, subsequently the detachment layer (3), optionally a sealing layer (4), the inscription medium (5) and optionally an adhesive layer (6) as the final layer, characterised in that the inscription medium contains uncopyable security features.
Dependencies are inferred from the claim text.