Electrostatically assisted coating method and apparatus with...

Details Electrostatically assisted coating method and apparatus with... Electrostatically assisted coating method and apparatus with...

B - Operations, Transporting

05

D

B05D 3/14 (2006.01) B05C 5/00 (2006.01) B05D 1/30 (2006.01) B05D 1/00 (2006.01) B05D 1/26 (2006.01)

Patent

CA 2404220

A system for applying a fluid coating onto a substrate includes forming a fluid wetting line by introducing a stream of fluid onto a first side of the substrate along a laterally disposed fluid-substrate contact area. An electrical force is created on the fluid from an electrical field (originating from electrical charges which are on the second side of the substrate) that is substantially at and downstream of the fluid wetting line. The electrical field can be generated by charges that have been transferred to the second side of the substrate from a remote charge generator.

L'invention concerne un système permettant d'appliquer un revêtement liquide sur un substrat, consistant à former une ligne d'humectation par fluide via l'introduction d'un flux de liquide sur un premier côté du substrat le long d'une surface de contact fluide-bande placée latéralement. On crée une force électrique s'appliquant au fluide à partir d'un champ électrique produit par des charges électriques situées sur le second côté du substrat, sensiblement au niveau et en aval de ladite ligne d'humectation. Le champ électrique peut être généré par des charges transférées vers le second côté de la bande depuis un générateur de charges distant.

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