H - Electricity – 01 – T
Patent
H - Electricity
01
T
204/175, 204/96
H01T 19/00 (2006.01) C08J 3/28 (2006.01)
Patent
CA 1131164
ABSTRACT OF THE DISCLOSURE Apparatus for the corona discharge treatment of a tra- velling web such as a plastics or cellulose film comprises a pair of spaced conductors with an associated alternating voltage power supply set at such a distance apart that the possibility of spark or arc discharge is avoided, at least one conductor having mounted thereto an electrode member extending towards the other conductor to define a gap across which is corona discharge can be formed. The electrode member consists of a dialectric material having a dielectric constant of at least 8, preferably at least 80, and may consist of a plate with an edge directed towards the other electrode Preferably the plate is formed of one or more ceramic tiles based upon a titanium and/or zirconium compound. In another form the electrode member consists of a row of rods or two or more rods of spaced rods in staggered relationship.
344248
British Cellophane Limited
George H. Riches And Associates
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