JPS5893890A - Partially plating method for article and product manufactured by said method - Google Patents

Abstract

PURPOSE:To easily manufacture an article plated only at the part easy to plate by plating a molding composed of a synthetic resin difficult to plate and a synthetic resin easy to plate. CONSTITUTION:A synthetic resin easy to plate is molded around a molding made of a synthetic resin difficult to plate in one body, or molding is carried out in the reverse order. The resulting article is immersed in a plating bath to plate only the part easy to plate. By this method the masking of the part not to be plated can be made unnecessary, so by eliminating mask attaching and detaching stages, the plating stage is simplified to enhance the productivity, and an article having a plated complex character, figure or symbol can be manufactured easily.

Description

DETAILED DESCRIPTION OF THE INVENTION The invention of this application is an invention based on a partial plating method for articles and products produced by this method.

In the conventional partial plating method, a single material of synthetic resin is molded, the parts not to be plated are masked with paint or a film, the parts are immersed in a plating bath to be plated, and the masking is removed after washing with water. The steps required for attaching and detaching the masking are cumbersome and reduce productivity.

This invention focuses on eliminating the need for masking,
A synthetic resin that is easy to plate and a synthetic resin that is difficult to plate are sequentially integrally molded into the same article in a previous or subsequent process,
The core of this invention is to immerse the article in a plating bath and plate it.

The first aspect of the invention is a method of integrally molding a synthetic resin material that is difficult to plate and a synthetic resin material that is easy to plate, and plating only the portion that is easy to plate.

The invention of item 2 is one embodiment of the invention of item 1,
In the first step, a synthetic resin material that is difficult to plate is molded,
Invention of a method for plating only the part of the easily plated material of an article molded integrally with the easily plated synthetic resin material around the periphery of the molded product in the first step, while the molded product is at high temperature. It is.

The invention of item 6 is the invention of item 2 in which the order of the first step and the second step is reversed. That is, in the first step, the plating-friendly synthetic resin material is molded, and in the second step,
This invention provides a method for plating only the easily plated material portion of an article, in which a synthetic resin material that is difficult to plate is integrally molded around the molded product formed in the first step, while the molded product is at a high temperature.

By carrying out the invention described above, it is not necessary to cover non-plated parts by masking when partially plating an article, and it has a remarkable technical effect in improving the productivity of the partially plated article.

The invention of paragraph 4 is an invention of a product produced by the invention of paragraphs 1 to 6.

For example, if a handle or button part of a slatch in or around the grille of a car driver's seat is colored in two colors, and the -color is a metallic color, the metal-colored part is the main color.・A suitable product can be easily obtained by molding it from an easy-to-clean synthetic resin, dipping it in a plating bath, and plating it, resulting in a remarkable improvement in productivity. Particularly, when the center contains complex characters, figures, or symbols, and the periphery is a single color, no masking is required, which dramatically improves productivity. For products in which one color in the two-color scheme of various types of silastic is metallic,
All can be easily applied.

[Brief explanation of drawings]

Figure 1 shows the product produced by the invention of the method described in Section 2. Figure 2 shows the product produced by the invention of the method described in Section 3. Figure 3 shows the product produced by the invention of the method described in Item 6. The symbol fl in the diagram indicates the part of the synthetic resin that is difficult to plate (2) is the part of the synthetic resin that is easy to plate.Inventor Makoto Inaba Patent applicant Takagi Kogyo Co., Ltd. IG 2 IG3

Claims (1)

[Claims] 1. A method of integrally molding a synthetic resin material that is difficult to plate and a synthetic f1 resin material that is easy to plate, and plating only the parts that are easy to plate. 2. In carrying out the invention of item 1, in the first step, a synthetic resin material that is difficult to plate is molded, and in the second step, the synthetic resin material that is easy to plate is integrally molded around the molded part in the previous step. A method of plating only the parts of the article that are easily plated. 6. In the invention of item 2, the method of molding an easily plated synthetic resin material in the first step, and plating only the portion of the easily plated material of the molded article with the difficult to plate synthetic resin material in the second step. 4. An article in which the part to be plated is molded with a synthetic resin that is easy to plate, the non-plated part is integrally molded with a synthetic resin that is difficult to plate, and only the easily plated part is plated in a plating bath.