| 摘要 |
In a first variation of the process outer and inner bottle surfaces are treated simultaneously. Open bottles(2) are delivered into into a vacuum chamber(1), e.g. a multimode resonator, filled with process gas and subjected to microwaves from a plasma head(3). Plasma pressure is pulsed periodically at a level which conveys the active material into the bottles. Preferred Features: In a second variation which treats only the insides of bottles and uses two vacuum systems the bottles are delivered to a multimode resonator whose plasma pressure lies outside the Paschen area and whose outlet connects with a separate vacuum or gas inlet system which ensures the plasma burns only inside the bottles. In a third variation which again treats only the inner surfaces of bottles the latter are delivered to a similar multimode resonator and evacuated with the chamber. Process gas is introduced and the bottles are sealed before the chamber is once again evacuated. Bottles are then subjected to microwaves and the plasma ignited inside. A similar magnet arrangement is used to that in the second variation.
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