APPARATUS FOR PLASMA SUPPORTED COATING OF THE INNER SURFACE OF TUBE-LIKE PACKAGING CONTAINERS MADE OF PLASTICS WITH THE ASSISTANCE OF A NON-THERMAL REACTIVE AMBIENT PRESSURE BEAM PLASMA

摘要

Described is an apparatus (100) suitable for the plasma supported coating of plastic surfaces said apparatus (100) comprising at least one set of capillaries (2,9,10), each set preferably comprises three beam plasma capillaries (2,9,10), a first or inner beam plasma capillary (9) made of an electrically conducting material, and a second beam plasma capillary (10) and an outer beam plasma capillary (2), both made of inert material. The first and the second beam plasma capillaries (9,10) serve the supply of the plasma gases, while the third capillary serves the transport of the off gases. Either the first beam plasma capillary (9) or a second electrode (12) are connected to a high frequency generator or mass (11a,11b).