Device and method for charge removal from dielectric surfaces
AssigneeRobert Bosch GmbH
InventorsStefan Grosse, Sascha Henke
Life of this patent
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Abstract
A device and a method for at least partial removal of electric charges from dielectric surfaces, in particular surfaces of plastic films, paper webs or plastic fibers are described. First, a plasma is generated through microstructure discharges with a plasma device in at least one plasma region. In addition, the dielectric surface is introduced into the plasma region with a feed mechanism and is temporarily exposed to electrically charged particles generated by the plasma there.
Claims28
A device for performing at least a partial removal of an electric charge from a dielectric surface, comprising:
- a plasma device for generating a plasma containing electrically charged particles in at least one plasma region using microstructures;
- a feed mechanism with which the dielectric surface is introducible one of into the at least one plasma region and at least into an effective region thereof, at which the dielectric surface is temporarily exposable to the electrically charged particles generated by the plasma;
- a gas feed for supplying a gas to the at least one plasma region;
- and
- a gas suction device for removal of the gas.
A method for at least partially removing an electric charge from a dielectric surface, comprising:
- causing a plasma device including microstructures to generate a plasma in at least one plasma region;
- supplying a gas via a gas feed to the at least one plasma region;
- temporarily exposing the dielectric surface to the plasma in at least one of the at least one plasma region and at least in an effective area thereof;
- and
- removing the gas via a gas suction device.
Dependencies are inferred from the claim text.