Gold product surface nano multi-layer composite anti-scratching film and preparation method thereof

Abstract

The invention discloses a gold product surface nano multi-layer composite anti-scratching film. The gold product surface nano multi-layer composite anti-scratching film is characterized in that the surface of a gold plating layer of a gold plating product or a gold product is covered with a transition layer, a nano multi-layer structure formed by at least one group of nano multi-layer composite protection film units, a Si transition layer and an AF anti-fingerprint film on the outermost layer sequentially from inside to outside, and each group of nano multi-layer composite protective film units consists of a nano transparent dielectric layer and a nano gold layer covering the nano transparent dielectric layer. The invention also relates to a preparation method of the film. The nano multi-layer composite anti-scratching film on the surface of the gold product prepared by the method well solves the problem that a gold plating layer on gold, gold ornaments or stainless steel, brass and the like is not resistant to scratching.

Description

technical field [0001] The invention relates to a surface ion-plated protective film of a gold product (or a gold-plated layer of a gold-plated product), in particular to a nano-multilayer composite anti-scratch film on the surface of a gold product. The invention also relates to a method for the preparation of said membrane. Background technique [0002] All kinds of gold and rose gold jewelry have always been loved by people, but gold or gold-plated jewelry is relatively soft, and the surface is prone to scratches and scratches after being bumped and rubbed during wearing, which will affect its dazzling beauty. For a long time, people have worked hard to improve the scratch resistance of gold. There are two ways: one is alloying, adding various alloying elements to Au, including precious metals and light and heavy rare earths, but the effect is not ideal, or the hardness can be improved. It is not big, or the original color tone is changed; the second is to coat the surfa...

AI Technical Summary

Problems solved by technology

The base of pure gold jewelry is too soft and lacks strong support for the top transparent medium layer, making it easier to be scratched

After ion-plating imitation gold (TiN) imitation rose gold (TiCN) layer on the surface of the stainless steel substrate, it is then plated with real gold or real rose gold products, such as watch parts, spectacle frames, mobile phone casings, etc., although the stainless steel substrate is slightly harder , but the single layer of soft and thin gold layer on the supported surface also has the problem of not being scratch resistant

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