Process for manufacturing wood grain color coated aluminum plate

Abstract

The invention discloses a process for manufacturing a wood grain color coated aluminum plate. The process comprises the following steps: carrying out degreasing and passivating pretreatment processes for an aluminum substrate; coating a layer of polyurethane paint on a passive film layer, baking the polyurethane paint in an oven to form a film so as to form base paint, then coating a layer of fluorocarbon resin paint on the base paint, baking the fluorocarbon resin paint in the oven to form a film so as to form primary color paint, and combining the base paint and the primary color paint to form a primary color base paint layer; coating a layer of fluorocarbon resin paint on the primary color base paint layer through a coating roller engraved with wood grains, and baking the fluorocarbon resin paint in the oven to form a firm so as to form a wood grain pattern paint layer; and coating a layer of fluorocarbon resin varnish on the wood grain pattern paint layer, and baking the fluorocarbon resin varnish in the oven to form a film so as to form a transparent protective finishing paint layer. The wood grain color coated aluminum plate manufactured by the process has color and wood floral patterns, is not easy to shed or tender each coating, and has good weather resisting property.

Description

technical field [0001] The invention discloses a manufacturing process of a wood-grain color-coated aluminum plate, which belongs to the technical field of building decoration materials. Background technique [0002] All kinds of aluminum plates are usually used in the decorative materials of buildings and the decorative materials of furniture, home appliances, handicrafts, consumer electronics and signs. Some of them are coated with a layer of single-color coating on the aluminum substrate, but the color is single and dull, without patterns, which cannot satisfy people's pursuit of fashion; some are on the aluminum substrate, covered with a layer of PVC with patterns. Film or use ink to transfer a layer of patterns, but the pattern layer is easy to fall off, brittle, poor weather resistance, blurred texture, false graphics, so it cannot be used outdoors. Contents of the invention [0003] The object of the present invention is to provide a wood-grain color-coated aluminu...

AI Technical Summary

Problems solved by technology

Some of them are coated with a layer of single-color coating on the aluminum substrate, but the color is single and dull, without patterns, which cannot satisfy people's pursuit of fashion; some are on the aluminum substrate, covered with a layer of PVC with patterns. film or use ink to transfer a layer of patterns, but the pattern layer is easy to fall off, brittle, poor weather resistance, blurred texture, false graphics, and cannot be used outdoors

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