Process for atmospheric pressure glow discharge treatment of a photographic support
AssigneeFuji Photo Film Co., Ltd.
InventorHindrik Willem de Vries
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Abstract
The invention is directed to a process for treating a photographic support in the form of a web, said process comprising providing a first grounded drum shaped electrically conductive electrode and at least one electrically conductive wire electrode of which the diameter varies between 60 and 1500 μm facing said drum shaped electrode, establishing an AC voltage with a frequency range between 100 Hz to 300 kHz over said electrodes, moving the web at atmospheric pressure along said drum shaped electrode, thereby exposing it to atmospheric pressure glow discharge established between the said drum shaped and wire electrode.
Claims10
A process for treating a photographic support in the form of a web, said process comprising providing a first grounded drum shaped electrically conductive electrode and at least one electrically conductive wire electrode of which the diameter varies between 60 and 1500 μm facing said drum shaped electrode, establishing an AC voltage with a frequency range between 100 Hz and 300 kHz over said electrodes, moving the web at atmospheric pressure along said drum shaped electrode to expose said web to atmospheric pressure glow discharge established between the said drum shaped and wire electrodes, wherein a second grounded electrically conductive back-up electrode is arranged behind said wire electrodes relative to said first grounded drum-shaped electrode.
A process for treating a photographic support in the form of a web, said process comprising providing a first grounded drum shaped electrically conductive electrode and at least one electrically conductive wire electrode of which the diameter varies between 60 and 1500 μm facing said drum shaped electrode, establishing an AC voltage with a frequency range between 100 Hz and 300 kHz over said electrodes, moving the web at atmospheric pressure along said drum shaped electrode to expose said web to atmospheric pressure glow discharge established between the said drum shaped and wire electrodes, wherein a second grounded electrically conductive back-up electrode is arranged behind said wire electrodes relative to said first grounded drum-shaped electrode and wherein the surface of the second grounded back-up electrode is covered with a dielectric coating.
Dependencies are inferred from the claim text.