公开(公告)号：CA1221276A

公开(公告)日：1987-05-05

申请号：CA454724

申请日：1984-05-18

Applicant: PHARMINDEV LTD

Inventor： COSENTINO ROBERTO F ,  BONAPACE FRANCO

IPC: B05B5/08 ,  B05D1/04 ,  B05B5/00 ,  B05D3/14

Abstract: PROCESS AND APPARATUS FOR ELECTROSTATIC COATING OF POORLY CONDUCTIVE OR NON-CONDUCTIVE PRODUCTS. In the electrostatic application of a coating material on to a product to be coated, the product leaves a supply hopper over a tube enlargement and falls freely in a chamber in the form of a tubular curtain. The tubular curtain falls around a central, elongate, vertical corona discharge electrode so that a high voltage electrostatic charge of one sign is applied to the falling curtain of the product. Coating material is sprayed on to the product by atomizers in the chamber. A high voltage electrostatic charge of opposite sign is applied to the coating material by way of the atomizers,