Patent ID: 7560137
Filing Date: 2009-07-14
Classification: B05C,B05D

Abstract:
1. A process for applying one or more layers of protective resin to the outer surface of containers, especially bottles, comprising sending containers to a coating plant, conveying the bottles through the coating segment of said plant where the containers are dipped into a coating solution, removing said bottles from said solution, removing any excess coating from the outer surface of said bottles, removing the solvent of the solution from the coating, solidifying and curing the resin of the coating; the process comprising the following steps: Using a single bottle-transferring and conveying chain throughout the coating plant; Securing the bottles to said chain with specific grippers as soon as the bottles enter the coating plant; Conveying said bottles, held vertically by the gripping devices of said chain, to a coating segment comprising two or more tanks containing the coating solution; wherein said tanks are movable according to the feeding direction of the chain and sequentially, first, upward in order to each contain several bottles to be dipped into the coating solution at the same time, and, then, downward in order to remove the bottles from the coating solution; Placing around the bottle, when removed from the coating solution a protective guard, and, then, spinning the bottles in order to eliminate the excess paint; Turning the bottles into the horizontal position; Rotating the bottles slowly around their axis in order to obtain a paint with uniform thickness; Sending the bottles to specific segments of the plant in order to dry the coating and, then, curing the coating.