Device for corona treatment of electrically insulating materials, especially plastic films

摘要

A device for corona treatment of electrically insulating plastic films has a counter electrode across which a plastic film to be treated is guided and a high-voltage electrode extending transversely to a travel direction of the plastic film. The high-voltage electrode has several electrode segments extending in the travel direction of the plastic film to be treated. The electrode segments are arranged to be pivotable transversely to the travel direction out of a treatment area. Discharge edges of the electrode segments are divided into individual discharge tongues spaced apart from one another in the travel direction of the plastic film and project in a direction toward the plastic film. The discharge tongues of adjacently positioned electrode segments are staggered relative to one another in the travel direction of the plastic film such that the discharge tongues are positioned tongue on gap.