B - Operations – Transporting – 29 – C
Patent
B - Operations, Transporting
29
C
204/182, 204/96.
B29C 71/04 (2006.01) B29C 59/10 (2006.01) B29C 59/12 (2006.01) H01T 19/00 (2006.01)
Patent
CA 1326466
Abstract of the Disclosure For surface pre-treatment of a plastic article, such as a film sheet or the interior of a plastic molded article, by means of electrical corona-discharge, a device is provided having a generator (5) and a corona-discharge device (11). The generator applies a high-frequency, high-voltage alternating current to the discharge electrodes (4) of the corona-discharge device (11). The grounded counterelectrode used is the metal core (2) of a roller (10) over whose peripheral coating (3) a film sheet (1) is transported. A housing (6) encompasses the electrodes (4) of the corona-discharge device (11) and is connected via a line (7) to an atomizer (8) in which a liquid is atomized to form an aerosol by means of a piezoelectrically operating ultrasonic vibration system or by two-component atomizer nozzles which operate at ultrasonic speed. A fan (9), the throughput rate of which can be regulated, is connected to the atomizer (8) and pushes the carrier gas, for example, air, for the aerosol through the atomizer into the corona-discharge device (11). Further corona-discharge devices can be present into which an aerosol of another liquid or only a reactive gas are fed.
559025
Bothe Lothar
Dinter Peter
Gribbin John Derek
Fetherstonhaugh & Co.
Fleming Claudia
LandOfFree
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