Importance

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Abstract

[Subject] To provide a decorative part having a hardening layer containing Au on the surface, particularly a gold colored decorative part having gloss and color tone inherent in gold, high brightness and high quality.[Means for Problem the Subject] The decorative part of the present invention comprises a substrate and, superimposed on the substrate, a hardening layer wherein the hardening layer comprises a primary layer comprising a nitride, a carbide or a carbonitride of one or two or more metals selected from Ti, Zr and Hf, a finishing layer comprising Au or an Au alloy having an arbitrary composition such as an Au—Ni alloy, an Au—Cu—Pd alloy etc. and, disposed between the primary layer and the finishing layer, a reflecting layer comprising a metal having a higher reflectance than one constituting the finishing layer, such as Ru, Pd, Rh, Ag, Os, Ir pr Pt.Thus, the gold colored decorative part having gloss and color tone inherent in gold, high brightness and high quality can be efficiently prepared.

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First Claim