Colored rigid decorative member

Abstract

Provided is a colored rigid decorative member that improves scratch resistance, suppresses deterioration of quality of appearance caused by scratches and wear, etc., and has a variety of high-grade color variations. A film is used that comprises an alloy of a metal having high adhesion to metal and having high brightness (a metal having poor corrosion resistance; Mo, W), a metal having high film hardness and high corrosion resistance (a metal having poor adhesiveness; Nb, Ta), and a metal that increases corrosion-resistance performance (Cr, Ti, Hf, Zr); and an alloy adhesion layer having a high adhesive effect, a gradient-alloy adhesion layer in which the reaction gas content is increased in a gradient manner, an abrasion-resistant layer having high hardness, a gradient-alloy colored layer in which the reaction gas content is decreased in a gradient manner, and a colored decorative layer having high decorative properties on the outermost layer and color variation are formed upon a substrate.

Description

technical field [0001] The present invention relates to colored hard decorative components such as exterior parts of clocks and watches, accessories such as glasses and jewelry, and decorations, and more particularly relates to a variety of color changes with a sense of luxury, excellent long-term damage resistance, and durability. Abrasive and corrosion resistant colored hard decorative components. Background technique [0002] Conventionally, on the wear-resistant layer used to improve the damage resistance of exterior parts, glasses, jewelry, clocks and other accessories, accessories, sporting goods, etc., in order to make a high-end appearance, the outermost layer is formed with a High-brightness platinum coating. For example, in Patent Document 1, a base layer is formed on a substrate, a titanium carbide layer is formed on the surface of the base layer by dry plating, and a decorative film made of platinum or a platinum alloy is formed on the surface of the titanium ca...

AI Technical Summary

Problems solved by technology

However, due to the low corrosion resistance of the Mo coating film, there is a problem that it cannot be directly used

In addition, although the use of a high-quality Cr coating film with good color tone and low spattering properties has been proposed, the film hardness of the Cr coating film is low, and sufficient damage resistance cannot be obtained. In addition, since the corrosion resistance is very high, there are many manufacturing processes. Problems such as the difficulty of stripping in

On the other hand, although it is also proposed to use Nb carbide film and Ta carbide film having high hardness and corrosion resistance as the outermost layer, since they have low adhesion to the substrate, thicker films cannot be produced, so The damage resistance is low, and the brightness is also slightly low, and there are also problems that these coating films cannot be used as they are

[0005] In addition, in order to obtain a high-end decorative outermost surface, it has also been proposed to form a hard carbon film (DLC) film described in Patent Document 3, a dielectric film described in Patent Document 4, or a The method described has a two-color multi-color coating film, but there are problems such as lack of wear resistance and adhesion of the base substrate, low damage resistance as a decorative member, easy damage, and reduced appearance.

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