Caps on plastic bottles must be absolutely airtight but they should also be easy to open. To ensure these qualities, silicone-modified compounds are used for these caps.

 Color adhesion on plastic covers
Plasma treatment of plastic caps for secure ink bonding

These materials have low surface tension, however, so printing on them (especially with solvent-free food-safe inks) can only be accomplished after plasma treatment. For that reason, Openair® Plasma has been used by leading manufacturers for years to increase surface tension on bottle caps.

The plasma jets are integrated directly into modern pad printing machines that operate at high speeds.

Tampoprint AG

A matter of precision

Tampoprint AG was entrusted with the assignment of developing and building fully-automated pad printing for 5-color printing (screen illustration printing) on mint boxes, with an hourly output of 1800 units.

read success story

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