Black plated resin part and method for manufacturing the same
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United States of America Patent
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Sep 25, 2018
Grant Date -
Apr 6, 2017
app pub date -
Sep 12, 2016
filing date -
Oct 6, 2015
priority date (Note) -
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Abstract
A black plated resin part includes a resin base material, an underlying plating layer including a copper plating layer and a nickel plating layer formed in this order on the resin base material, a black chromium plating layer formed on the nickel plating layer, formed of trivalent chromium, and having a film thickness of not less than 0.15 μm, and a corrosion resistant film formed on the black chromium plating layer, formed of chromic phosphate or molybdenum phosphate, and having a film thickness of not less than 7 nm. A brightness of the black chromium plating layer seen through the corrosion resistant film is expressed by an L* value of not more than 54 based on the L*a*b* color system.
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