JPS5913094A - Method for vapor-depositing aluminum on surface of electrically nonconductive material and for treating said surface - Google Patents

Abstract

PURPOSE:To form a surface similar to the surface of a processed Al product, by anodically oxidizing the surface of an electrically nonconductive material having Al vapor-deposited thereon. CONSTITUTION:Al is vapor-deposited on the surface of an electrically nonconductive material to a thickness enough for anodic oxidation by vacuum deposition, ionic plating or sputtering. The deposited Al film is anodically oxidized, and the oxidized surface of the nonconductive material is treated to form a surface similar to the surface of a processed Al product.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method of forming an aluminum vapor deposited film on a non-conductive material wa surface and anodizing the aluminum vapor deposited film. More specifically, the present invention involves depositing an aluminum vapor deposited film on the surface of a material that cannot form an anodic oxide film, anodizing the vapor deposited film, and applying aluminum processing to materials other than aluminum processed products. This invention relates to a treatment method for forming a surface similar to that of a product.

Conventionally, for example, most caps for cosmetic containers (lotion containers) are made of two parts: a plastic molded product with a groove cut into the inside for the opening of the container to be screwed into, and an aluminum part covering the outer surface of the plastic molded product. It consisted of. Although plastic moldings may be used for various purposes, aluminum parts that can be anodized are used for various decoration purposes. The aluminum parts were anodized and painted depending on the purpose.

However, in manufacturing such a cap, the plastic molded product and the aluminum component had to be made with high precision in order to closely fit them together. Since each of the cut parts must be made separately and then fitted together, the number of manufacturing steps is large, which inevitably increases manufacturing costs.

In another conventional technique, a metal film is formed by plating a plastic molded product or the like using a well-known technique. The method is the so-called plastic plating method, in which the surface of the plastic molded product is activated with a special chemical, and then immersed in a solution of copper or nickel using a special method to coat the plastic molded product with a copper or nickel coating. This is a method in which the film is formed on top of the metal and then chromium plated using the film as the electrode. However, this plastic plating method has the disadvantage that it can only be colored with chrome, and that it causes pollution due to waste liquids and the like associated with metal Φ.

The present invention was developed to eliminate these drawbacks, and its purpose is to form an aluminum vapor deposited film on a non-conductive material with a thickness that allows anodization treatment (hereinafter referred to as alumite treatment), The object of the present invention is to provide a method for surface-treating the deposited film by alumite treatment.

Another object of the present invention is to provide the above method for forming an aluminum vapor deposited film on the surface of a non-conductive object having a complex shape.

Furthermore, another object of the present invention is to provide the above method that does not cause pollution when forming an aluminum film on a non-conductive material.

The method of the present invention consists of the following steps.

a) Apply a vapor-deposited aluminum film to the thickness necessary for alumite treatment on the surface of a non-conductive object, such as a plastic molded product, glass, etc., either directly or on top of a base coat (application of acrylic, epoxy, etc. paint). Deposit aluminum to form.

b) The formed aluminum vapor-deposited film is subjected to an alumite treatment, and the conventional coloring performed on the alumite-treated gold (5) metal surface, secondary electrolytic coloring, secondary electrolytic coloring, and overcoat are performed.

Next, preferred embodiments of the present invention will be described with reference to the drawings.

The drawing shows a state in which aluminum is ion-blated to a plastic molded cap, which is a non-conductive material. In the drawing, a cap 2 to be evaporated and an aluminum plate as an evaporation material are installed in a vacuum container 1. The inside of the vacuum container is evacuated to 10 -4 to 10 Torr using a vacuum pump (not shown), and argon gas is introduced. Then, the aluminum Ramura is evaporated from the electron generation source 4 in the evaporator 5 and ionized. The ionized aluminum vapor is deposited on the surface of the cap.

In the above-mentioned ion blating, it is possible to form a deposited film with a thickness of about 10 μm, and its purity is 9399 cm.

Next, an electrode for alumite treatment is attached to the formed aluminum vapor-deposited film, and alumite treatment (DC (6) 15V, H, 80, 15L liquid f120℃, IA/d1
11t), and if necessary, color (golden) and finish.

Although the ion blating method is exemplified as a method for forming a vapor deposited film, other similar methods include a vacuum vapor deposition method,
There is a sputtering method. Since these devices are thin film deposition means, several to ten or more depositions are required to obtain the film thickness necessary for alumite treatment.

In the above examples, the vapor deposited film was formed directly on the plastic base, but if the surface of the product is scratched or in order to have a glossy appearance, it may be necessary to apply an acrylic or epoxy paint. It is preferable to form a vapor deposited film.

When the present invention is applied to the cap, since the cap has alumite on its surface, it can be applied using conventional methods for surface treatment of aluminum products.
For example, it is possible to implement a method of coloring after alumite treatment or overcoating without coloring, a method of performing secondary electrolytic coloring after alumite treatment, or a method of performing primary electrolytic coloring during alumite treatment.

As a preferred example of implementing the present invention, a wide-mouthed plastic cap was treated, but other plastic molded products, such as cosmetic containers, fountain pen caps, drawer handles, etc., can be molded. If so, the process described above can be performed.

Further, the aluminum vapor deposition film can also be applied to non-conductive materials other than plastic molded products, such as glass products. When the present invention is applied to glass products, not only can the glass surface have the metallic luster of aluminum, but also various colors can be applied.

According to the present invention, a uniform vapor deposition film of aluminum can be formed on a non-conductive material having a complicated surface shape,
Furthermore, the non-conducting material made by anodizing the aluminum and applying the surface finish processing is different from the conventional product consisting of the non-conductive material and separate aluminum parts to prevent the non-conductive material, and the metal part and the non-conductive material are different from each other. There is no separation of particles, and manufacturing costs are reduced because the parts are processed as a single piece. Further, when a plastic molded product is used as a non-conductive material, the plastic molded product can be processed into a complicated shape, so it is possible to manufacture a product with a complicated shape and a surface with mechanical strength.

Furthermore, when forming the metal surface of aluminum, unlike plating, there is no problem of pollution caused by waste liquid or the like.

[Brief explanation of the drawing]

The drawing is a schematic cross-sectional view showing an ion blating apparatus for forming a deposited film on a non-conductive material. [Main symbols] 1-1 Vacuum container 2-1 Cap (non-conductive material)
3--Aluminum 4--Electron source 5--Evaporator

Claims (1)

[Scope of Claims] L. A method of vapor depositing aluminum on the surface of a non-conductive material to perform surface treatment, comprising: a) depositing aluminum on the surface of a non-conductive material to a thickness that is at least suitable for main anodization treatment; b) a step of anodizing the aluminum vapor deposited film formed on the surface of the non-conductive object; C) anodizing the anodized surface of the non-conductive object; A method comprising: a surface treatment step; 2. The method according to claim 1, wherein the aluminum vapor deposition film formed on the surface of the non-conductive material is formed by any one of a vacuum evaporation method, an ion blasting method, and a sputtering method. 1. The method according to claim 1, wherein the step of forming the aluminum vapor deposition film is a step of vapor depositing aluminum directly on the surface of the non-conductive object. 4. The method according to claim 1, wherein the step of forming the aluminum vapor-deposited film is a step of applying a base coat to the surface of the non-conductive object and then vapor-depositing aluminum. The method according to claim 1, wherein the surface treatment step is a step of anodizing the deposited film and then applying an overcoat with or without coloring. 6. The method according to claim 1, wherein the surface treatment step is a step of performing secondary electrolytic coloring after anodizing the deposited film and then applying an overcoat. -L The method according to claim 1, wherein the surface treatment step is a step of performing -second electrolytic coloring on the deposited film during anodic oxidation treatment, and then applying an overcoat.