RotoTEC - Corona Treatment

RotoTEC - Corona Treatment of 3-dimensional plastic products

The purpose of corona treatment is to optimize the adhesion properties on polymer-based materials. The low surface energy of polymer-based substrates often leads to poor adhesion of inks, glues and coatings which by nature present significantly high surface energies. To obtain optimum adhesion, it is crucial that the surface energy of the substrate is equal or higher than the surface energy of the material to be applied to the polymer.

RotoTEC offers a cost-effective conveyor system for optimizing the adhesion properties of printing inks and coatings onto plastic products made from low surface energy polymers like PP, PE, PC, PS and others.

This universal corona treater operates with special rotating electrodes, resulting in complete and uniform treatment of the entire surface.

These self-contained conveyors can be installed in existing production lines or used as an off-line process. The system includes a high frequency generator, high voltage transformers, rotary electrodes and ozone filters.

RotoTEC is available in standard and customized designs.

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