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Adhesion promotion techniques for coating of polymer films

: Rank, R.; Wünsche, T.; Fahland, M.; Charton, C.; Schiller, N.

Society of Vacuum Coaters -SVC-, Albuquerque/NM:
Society of Vacuum Coaters. 47th Annual Technical Conference 2004. Proceedings : April 24 - 29, 2004, Dallas, Texas USA
Albuquerque: SVC, 2004
Society of Vacuum Coaters (Annual Technical Conference) <47, 2004, Dallas/Tex.>
Fraunhofer FEP ()
pre-treatment; plasma source; surface modification; Polymer web

Adhesion of vacuum deposited thin films on polymeric films is a critical parameter for many applications and products. Therefore, during the last years, several plasma pre-treatment techniques have been developed to address this issue. However, it has been learned over the years that the pre-treatment parameters have to be well matched to the substrate and coating conditions. In this paper we describe the different demands on a plasma source with regard to the coating speed (evaporation, sputtering) used. Appropriate solutions and methods have been evaluated considering low investment costs for a hardware upgrade. In some cases the intelligent usage of already existing equipment can be already sufficient.