DECORATED ALUMINUM BASE MATERIAL PRODUCTION METHOD AND DECORATED ALUMINUM BASE MATERIAL
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United States of America Patent
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Issued Date -
Feb 23, 2023
app pub date -
Dec 22, 2020
filing date -
Dec 22, 2020
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Abstract
With a laser decoration method for forming a painting film layer on a surface of a metal base material, and irradiating the painting film layer with a laser beam LB, thereby applying decoration, the decoration part is effectively colored by a simple process, which enables decoration with high visibility while omitting a complicated process. The problem was solved by a production method of a decorated aluminum base material characterized by including a process of forming a painting film layer on a surface of an aluminum base material, a process of partially exposing the surface of the aluminum base material by irradiation with a laser beam, and a process of subjecting the surface of the aluminum base material to an oxide film forming treatment, wherein a colored oxide film is formed on the exposed surface of the aluminum base material by the oxide film forming treatment.
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