Method of manufacturing metal decorative panel having colored depressions
AssigneeToppan Printing Co., Ltd.
InventorHideru Ushijima
Life of this patent
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Abstract
A metal decorative panel, wherein concave portions are etched with a desired pattern in the surface of a metal plate; a photosensitive synthetic resin layer is electrically deposited on the surface of said concave portions; a desired pattern is transcribed by sublimation on said electrically deposited synthetic resin layer, using sublimable dyes, and which displays high abrasion resistance and weatherability, and a beautiful decorative effect due to a synthetic combination of the partly colored portions of the surface of the metal plate and the exposed glossy portions thereof.
Claims3
A method of manufacturing a metal decorative panel having colored depressions, which comprises forming a pattern of electrically nonconducting resist layer on a surface of a metal panel, partially exposing the surface of the metal panel;
- etching the exposed metal surface to a prescribed depth;
- electrically depositing a synthetic resin layer only on the etched portion of the metal by dipping the patterned metal panel in an aqueous solution containing a paint for electric deposition, the thickness of the deposited synthetic resin layer being thinner than depth of the etched portion;
- washing off the resist layer by a solvent;
- pressing a sublimation transfer sheet on the surface of the metal panel under a temperature sufficient to transfer a pattern depicted on the transfer sheet onto the surface portions deposited with the synthetic resin only.
Dependencies are inferred from the claim text.