摘要:
(57) Abstract: A plastic container is coated with DLC film as a desirable oxygen barrier so that it is suitable for containing oxygen-sensitive or carbonated beverage. A coating device comprises an outer electrode arranged outside a plastic container (5), an inner electrode (11) arranged inside the plastic container (5), a pipe (12) through which carbon source gas is supplied to the plastic container (5) pumped to a low pressure, and a high-frequency oscillator (9) for applying voltage between the outer electrode and the inner electrode (11) after supplying the source gas to generate a plasma for depositing DLC film on the inner wall of the plastic container (5). The outer electrode includes a bottom electrode (4) arranged along the bottom of the plastic container (5) and a wall electrode (3) arranged along the inner wall of the plastic container. The bottom electrode (4) is located below half the complete height of the plastic container (5).
摘要:
A plastic container is coated with DLC film as a desirable oxygen barrier so that it is suitable for containing oxygen-sensitive or carbonated beverage. A coating device comprises an outer electrode arranged outside a plastic container (5), an inner electrode (11) arranged inside the plastic container (5), a pipe (12) through which carbon source gas is supplied to the plastic container (5) pumped to a low pressure, and a high-frequency oscillator (9) for applying voltage between the outer electrode and the inner electrode (11) after supplying the source gas to generate a plasma for depositing DLC film on the inner wall of the plastic container (5). The outer electrode includes a bottom electrode (4) arranged along the bottom of the plastic container (5) and a wall electrode (3) arranged along the inner wall of the plastic container. The bottom electrode (4) is located below half the complete height of the plastic container (5).
摘要:
The lower edge of the peripheral wall (b) of a can cap (A) and the upper edge of a can barrel (B) are spaced from each other by a gap. Streams of an inert gas from different groups (92, 91) of injector nozzles (9) are injected, from outside of the gap, through the gap into the can cap (A) and the can barrel (B), respectively, to replace air in the can cap (A) and the can barrel (B) with the injected gas. Then the can barrel (B) is fitted in to the can cap (A), and secured thereto to entrap the injected gas in the can barrel (B) and the can cap (A).