JP4184773B2 - Decorative member and method of manufacturing the same - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a decorative member made of a so-called gold cermet, such as a badge such as a company badge, and a manufacturing method thereof.
[0002]
[Prior art]
Conventionally, so-called gold cermet has been used as the material of the decorative member.
[0003]
The gold cermet is a cermet obtained by bonding a metal nitride such as titanium or carbonitride with a metal such as nickel or cobalt, and exhibits a gold color (see Patent Document 1).
[0004]
In decorative members made of gold cermet, cermet is hard to adhere paint firmly, so as a means to display letters and figures, the surface that makes the background is sandblasted, the letters and figures parts smooth the surface, The surface roughness of both has been greatly varied.
[0005]
[Problems to be solved by the invention]
The decorative member made of the gold cermet has a high-class feeling, but since the characters and figures are displayed due to the difference in surface roughness and smoothness, the letters and figures are viewed from a distance. There was a problem that it was difficult to stand out.
[0006]
The present invention solves such problems of the prior art, and in a decorative member using gold cermet as a base material, it makes it possible to make characters and figures conspicuous even when viewed from a distance while taking advantage of the luxury of gold cermet. The purpose is to be able to.
[0007]
Another object of the present invention is to give a three-dimensional effect to characters and figures in the decorative member.
[Patent Document 1]
Japanese Patent Laid-Open No. 5-9643
[Means for Solving the Problems]
In order to solve the above-mentioned problems, the decorative member according to claim 1 is characterized in that the surface of the base material of the titanium nitride-based cermet exhibiting a gold color has a black color mainly composed of titanium carbide, diamond-like carbon, epoxy resin or glass. A covering film is provided, and the surface of the base material is partially exposed from the covering film so as to represent an arbitrary character or figure.
[0009]
According to such a configuration, since the golden characters and figures are displayed with the black background, the golden characters and figures are conspicuous even when viewed from a distance, and the golden characters and figures are exposed from the gold cermet. Because it is a part that has been made, you can make use of the luxury of gold cermet.
[0010]
Next, the decorative member according to claim 2 is characterized in that the surface of the base material exposed from the coating film is convex with respect to the coating film.
[0011]
According to such a configuration, it is possible to give a stereoscopic effect to characters and figures.
[0012]
Next, the decorative member according to claim 3 is characterized in that the outer edge of the surface of the base material exposed from the coating film is chamfered.
[0013]
According to such a configuration, the stereoscopic effect can be further emphasized.
[0014]
Next, in the decorative member according to claim 3 , the coating film may contain titanium carbide, diamond-like carbon, epoxy resin, or glass as a main component.
[0015]
Furthermore, the coating layer is difficult to peel off. In addition, when the main component Da ear Mondo like carbon as the material of the coating film, hardly scratch the coating film, when the main component of glass, it is possible to obtain a black shiny.
[0016]
Next, according to the manufacturing method of claim 4 , a black coating layer mainly composed of titanium carbide, diamond-like carbon, epoxy resin or glass is applied to the surface of the base material of the titanium nitride-based cermet exhibiting a gold color. And a step of exposing a surface of the base material by removing a desired portion of the coating layer so that the exposed surface of the base material represents an arbitrary character or figure. The member for jewelry according to claim 1 can be manufactured.
[0017]
The manufacturing method of claim 6 includes a step of forming irregularities on the surface of the base material of the cermet so as to represent arbitrary characters and figures before the step of depositing the covering layer, The jewelry member of Claim 3 can be manufactured from the process of chamfering the outer edge of the surface which became.
[0018]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described below.
[0019]
As shown in FIGS. 1 and 2, the decorative member 1 of the present invention is provided with a coating film 3 exhibiting a black color on the surface of a cermet base material 2 exhibiting a gold color, and the surface of the base material 2 is arbitrarily selected. It is characterized by being partially exposed from the coating film 3 so as to represent characters and figures (in the figure, ABCD characters).
[0020]
The titanium nitride-based cermet may be of any kind as long as it exhibits a gold color. The material of the coating film 3 exhibiting a black color, titanium carbide, da ear Monde like carbon, epoxy resins, and glass are preferable from the viewpoint of the adhesive strength and color. The epoxy resin used for the material of the coating film 3 is particularly preferably a black pigment-containing epoxy resin, and the glass is preferably a black pigment-containing glass. In addition, titanium carbide may be used as the material of the coating film 3.
[0022]
In the case of diamond-like carbon, it can be coated by a CVD method.
[0023]
In the case of an epoxy resin to which a black pigment is added, the coating film 3 can be applied to the base material 2 by immersing it in a screen printing ink based on an epoxy resin and then curing it by applying heat.
[0024]
The glass can be coated with the coating film 3 on the base material 2 by applying a glaze added with a black pigment and baking at a predetermined temperature for a predetermined time.
[0025]
Next, as a method of exposing the base material 2 from the coating layer 3, there is a method of evaporating and removing a predetermined portion of the coating layer using a YAG laser or the like. In this case, as shown in FIG. 2A, the exposed surface of the base material 2 is concave with respect to the coating layer 3.
[0026]
Further, there is a method in which unevenness is provided in the base material 2 in advance, and then a part of the coating film 3 is polished and removed to expose only the convex surface 2 b of the base material 2. In this case, as shown in FIG. 2B, the exposed surface of the base material 2 is convex with respect to the coating layer 3, and the golden characters and figures represented by the convex surface 2b have a three-dimensional effect.
[0027]
In this method, as shown in the explanatory diagram of FIG. 3, the base material 2 is provided with irregularities [see FIG. 3 (a)], and then the coating film 3 is deposited [see FIG. 3 (b). Reference], a part of the coating film 3 is polished and removed, and only the convex surface 2b of the base material 2 is exposed while the concave surface 2c of the base material 2 is covered with the coating film 3 [FIG. See] Procedure.
[0028]
In the method of FIG. 3, before the coating film 3 is applied, the outer surface 2a of the convex surface is chamfered using means such as polishing the exposed convex surface of the base material 2 with a brush [FIG. 3 (b)] is preferred. As a result of the chamfering, there is an advantage that a stereoscopic effect enhanced by the characters and figures is given.
[0029]
Next, an example of a badge using a cermet mainly composed of titanium nitride exhibiting a golden color as a base material will be described.
[0030]
【Example】
[ Reference Example 1] A base material of a badge is produced by a titanium nitride-based cermet (Kyocera Corporation, material name: G212) mainly composed of titanium nitride exhibiting a gold color. This base material is provided with irregularities on the surface of the base material so as to represent the letters ABCD at the stage of powder press molding. The uneven concave surface (background portion) has a uniform height, and the convex surface has a uniform height. In the sintered titanium nitride-based cermet, the convex surface (character part of ABCD) was set to a height of 0.3 to 0.4 mm with respect to the concave surface.
[0031]
Next, the convex surface is polished with a brush with diamond powder, and finished with a lapping machine or the like to give a glossy finish. At this time, by polishing with a brush, the outer edge of the convex surface is rounded as a curved surface having a curvature of about R2 to 3 μm, and a three-dimensional effect is given to the ABCD characters represented by the exposed convex surface of the golden base material. It was.
[0032]
The base material, quickly degreasing, pickling, followed by washing with water, nickel-plated in a thickness of about 2~3μm the surface, the base of the covering layer showing a black color. Chromium plating is performed on this base, and a coating film of black chrome plating having a thickness of 1 to 4 μm is attached.
[0033]
Next, the black coating film is wrapped with diamond powder to expose the convex surface of the base material from the coating film.
[0034]
As described above, the concave surface of the surface of the base material is black, and this black surface is the background. And the convex surface which exposed the said base material will represent the golden character of ABCD. In addition, since the color of the said coating layer of black chrome plating was deep black, the golden character part was reflected well.
[Example 1 ] As a coating film exhibiting black color by plasma CVD, a diamond-like carbon film was coated on the surface of the base material to a thickness of about 1 μm, and ABCD characters were entered in the same manner as in Reference Example 1. Made a badge.
The coating film of diamond-like carbon has high hardness and is hardly damaged.
[Example 2 ] After dipping in a screen printing ink based on an epoxy resin added with black pigment (Teikoku Manufacturing Co., Ltd., material name: two-component reactive ink 1690N), cured at 150 ° C for 30 minutes. A badge with ABCD characters was produced in the same manner as in Reference Example 1 except that a coating film was formed. The coating film of the epoxy resin is simple in coating method and has a large adhesion to the base material.
[Example 3 ] The same method as in Reference Example 1 except that a glaze Ceralabel-Green (manufactured by Sigmax) to which a black pigment was added was applied and baked at 600 ° C for 5 to 20 minutes to form a coating film. Made a badge with ABCD letters. The coating film made of glass has a simple coating method and exhibits a glossy black color, so that the golden character portion is further enhanced.
[0035]
As mentioned above, although embodiment of this invention was illustrated, this invention is not limited to these embodiment. It goes without saying that the present invention can be in any form without departing from the object of the invention.
[0036]
【The invention's effect】
As described above, the decorative member of the present invention is provided with a coating film exhibiting a black color mainly composed of titanium carbide, diamond-like carbon, epoxy resin, or glass on the surface of a base material of a titanium nitride-based cermet exhibiting a gold color. In addition, since the surface of the base material is partially exposed from the coating film so as to represent arbitrary characters and figures, since the golden letters and figures are displayed against a black background, Even if it sees from a top, since a golden character and a figure are conspicuous and a gold character and a figure are the parts which a gold cermet exposed, it can utilize the high-class feeling of a gold cermet.
[0037]
Next, in the decorative member, when the surface of the base material exposed from the coating film is convex with respect to the coating film, a three-dimensional effect can be given to characters and figures. .
[0038]
Next, in the decorative member, when the outer edge of the surface of the base material exposed from the coating film is chamfered, the stereoscopic effect can be further emphasized.
[0039]
Then, in the decorative member, wherein the covering film, titanium carbide, diamond-like carbon, if mainly composed of epoxy resin or glass, the coating layer is hardly peeled off. Further, when the coating film is mainly composed of diamond-like carbon, the coating film is hardly damaged, and when glass is the main component, a glossy black color can be obtained.
[0040]
Further, according to the method for manufacturing a decorative member of the present invention, the coating layer exhibiting a black color mainly composed of titanium carbide, diamond-like carbon, epoxy resin, or glass is formed on the surface of the base material of the titanium nitride-based cermet exhibiting a golden color. Including the step of depositing and exposing the base material by removing a desired portion of the coating layer so that the exposed surface of the base material represents an arbitrary character or figure. It is possible to manufacture a decorative member that is conspicuous in the characters and figures and that makes use of the luxury of gold cermet.
[0041]
Further, in the manufacturing method, before the step of depositing the coating layer, a step of forming irregularities so as to represent arbitrary characters and figures on the surface of the base material, Including the step of chamfering the outer edge, so that the decorative member with the three-dimensional effect enhanced can be manufactured.
[Brief description of the drawings]
FIG. 1 is a plan view of a decorative member according to an embodiment of the present invention.
2A and 2B are cross-sectional views taken along line AA in FIG.
FIGS. 3A to 3D are explanatory views showing, in stages, a manufacturing method for a decorative member according to an embodiment of the present invention. FIGS.
[Explanation of symbols]
1 .. Decoration member, 2 .. Base material, 3 .. Coating film, 2a .. Outer edge, 2b .. Convex surface, 2c .. Concave surface

Claims (5)

The surface of the base material of the titanium nitride-based cermet exhibiting a gold color is provided with a coating film exhibiting a black color mainly composed of titanium carbide, diamond-like carbon, epoxy resin, or glass, and so as to represent any character or figure. A decorative member, wherein a surface of the base material is partially exposed from a coating film.  The decorative member according to claim 1, wherein a surface of the base material exposed from the coating film is convex with respect to the coating film.  The decorative member according to claim 2, wherein an outer edge of the surface of the base material exposed from the coating film is chamfered. A step of depositing a black coating layer mainly composed of titanium carbide, diamond-like carbon, epoxy resin or glass on the surface of a base material of a titanium nitride-based cermet exhibiting a gold color, and removing a desired portion of the coating layer And a step of exposing the surface of the base material so that the exposed surface of the base material represents an arbitrary character or figure.  Prior to the step of depositing the coating layer, a step of forming irregularities on the surface of the base material of the titanium nitride-based cermet so as to represent arbitrary characters and figures, and an outer edge of the convex surface of the irregularities The method for manufacturing a decorative part according to claim 4, further comprising a step of chamfering.

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