| 摘要 |
The invention relates to a device for the plasma-assisted coating of a container, for example a plastic bottle, and/or a container blank, for example a container preform, containing at least one high-frequency source (216), at least one gas feed for feeding process gas (216), and at least one plasma source (200), for example a plasma nozzle. The plasma source has an inner electrode (205), and the inner electrode (205) is surrounded by a nozzle tube (220). The at least one plasma source (200) can be inserted into a container to be coated and is configured such that the plasma source can generate a plasma (204) under ambient pressure, for example in a pressure range between 800 and 1200 hPa, said plasma exiting from a nozzle tube end (203). The temperature of the generated plasma lies in the ambient temperature range, for example between 10 and 50 °C. The invention is characterized in that the nozzle tube (220) of the plasma source (200) has a longitudinal nozzle tube element (201) and a lateral nozzle tube element (202). The lateral nozzle tube element (202) protrudes laterally from the longitudinal nozzle tube element (201), and plasma can exit through the lateral nozzle tube end (203). |
