Standardizable method for testing foil-substrate adherence

Karel J. Schell; Han Klinker; Rudolf L. van Renesse

doi:10.1117/12.462727

19 April 2002 Standardizable method for testing foil-substrate adherence

Karel J. Schell, Han Klinker, Rudolf L. van Renesse

Proceedings Volume 4677, Optical Security and Counterfeit Deterrence Techniques IV; (2002) https://doi.org/10.1117/12.462727
Event: Electronic Imaging, 2002, San Jose, California, United States

Abstract

An increasing number of currencies is provided with an Optically Variable Device (OVD) as a counterfeit deterrent. The device is adhered to the substrate by a hot melt adhesive. Adherence is generally tested with an adhesive tape, a practical test that sufficed up to now. Nevertheless, the question may be raised if a method can be developed with a better discriminating power as well as a larger potential for standardization. A feasibility test with the IGT printability tester, using a high viscosity pick up oil, shows promising results. This paper presents the testing method, shows a few preliminary results and discusses these results with respect to the foil application method.

Citation Download Citation

Karel J. Schell, Han Klinker, and Rudolf L. van Renesse "Standardizable method for testing foil-substrate adherence", Proc. SPIE 4677, Optical Security and Counterfeit Deterrence Techniques IV, (19 April 2002); https://doi.org/10.1117/12.462727

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