JPH0621657U - Decorative balls - Google Patents

Abstract

(57) [Summary] [Purpose] It is possible to obtain a strong adhesion of the chemical plating layer to the surface of the rubber ball body, and there is no peeling of the chemical plating layer and each plating layer above it, resulting in a great commercial value. To improve. A honing layer 3 is formed on the surface of a rubber ball body 2, and black nickel, gold, and gold are formed on the surface of the honing layer 3 via a chemical plating layer 4, a copper sulfate plating layer 5 and a nickel plating layer 6. One of the silver surface plating layers 7 is formed.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a decorative ball in which a ball body made of rubber (neoprene rubber, natural rubber, synthetic rubber) such as a hard ball, a soft ball, and a golf ball or a synthetic resin is plated with gold on its surface.

[0002]

[Prior art]

 Conventionally, for example, in order to apply gold plating or the like to the surface of a rubber ball body such as a golf ball, the surface of the ball body is once subjected to chemical nickel plating, and then the upper portion of this chemical nickel plated layer is subjected to gold plating. The ball formed in this way can be used as a decorative item due to its metallic color tone.

However, the above-mentioned decorative ball has a problem that the chemical nickel plating layer has a particularly weak adhesion to the surface of the ball body, the chemical nickel plating layer and the gold plating layer on the surface are easily peeled off, and the commercial value is deteriorated. .

[0004]

[Problems to be solved by the device]

 This invention can obtain strong adhesion of the chemical plating layer to the surface of the rubber ball body, and there is no peeling of this chemical plating layer and each plating layer above it, and the product value is greatly improved. The purpose is to provide a decorative ball that can be used.

[0005]

[Means for Solving the Problems]

 In this invention, a honing layer is formed on the surface of a rubber ball body, and any of black nickel, gold and silver is formed on the surface of the honing layer through a chemical plating layer, a copper sulfate plating layer and a nickel plating layer. It is a decorative ball having one surface plating layer formed thereon.

[0006]

EFFECTS OF THE INVENTION According to the present invention, the surface of the rubber ball main body is provided with minute irregularities, and the honing treatment layer in which the air existing in the surface layer of the rubber ball main body is blown out is formed. The unevenness acts on the chemical plating layer as an anchor effect.

Therefore, it is possible to obtain a strong adhesion of the chemical plating layer to the surface of the rubber ball main body, and there is no peeling of the chemical plating layer and each plating layer above the chemical plating layer, thereby significantly improving the commercial value. be able to.

Further, the copper sulfate plating layer smoothes the layer surface of the nickel plating layer and the surface plating layer of any one of black nickel, gold and silver by filling in the irregularities due to the formation of the honing treatment layer.

[0009]

【Example】

 An embodiment of the present invention will be described in detail below with reference to the drawings.

The drawings show a decorative golf ball. In FIG. 1 and FIG. 2, the decorative golf ball 1 has a honing treatment layer 3 and a chemical nickel plating layer 4 on the surface of a one-piece golf ball body 2 which is entirely made of rubber. A surface plating layer 7 of any one of black nickel, gold (Au) and silver (Ag) is formed via the copper sulfate plating layer 5 and the nickel plating layer 6. Here, the one-piece golf ball body 2 is used because there is no air layer inside and there is no risk of air outflow during plating.

The honing process and each plating process for the golf ball body 2 described above are performed according to the steps shown in FIG.

That is, in the first step S1, about 180 to 200 mesh emery powder (sand-like ore in which colandam and magnetite are uniformly dispersed) is applied to the surface of the golf ball body 2 at a pressure of 2 to 4 kg. By injecting, the surface of the golf ball body 2 is roughened to form a honing layer 3 having a large number of minute irregularities 3a.

Next, in a second step S2, a sensitization treatment is carried out in which palladium chloride is attached to the surface of the honing treatment layer 3 described above.

Next, in the third step S3, the golf ball main body 2 that has been subjected to the above-described steps up to the second step S2 is put into a liquid of first tin chloride, and palladium (Pd) is changed from an ionic state to a metallic state. Execute the activation process. Note that this step is repeated 2-3 times.

Next, in a fourth step S4, the golf ball main body 2 which has been subjected to the above-described steps up to the third step S3 is immersed in a plating solution having the following composition, and electroless plating (chemical plating) is performed. , Nickel (Ni) and palladium (Pd) are replaced to form a chemical nickel plating layer 4 having a thickness of about 0.1 to 0.2 μm.

Composition of chemical nickel plating solution Nickel sulfate: 5 g / l Sodium hypophosphite (reducing agent): 30 g / l Stabilizer: Trace amount Next, in the fifth step S5, on the surface of the above-mentioned chemical nickel plating layer 4. A copper sulfate plating layer 5 is formed, and the irregularities 3a are filled in to smooth the surface of the plating layer. The composition of the plating solution used for the copper sulfate plating and the plating conditions are as follows.

Composition and Conditions of Copper Sulfate Plating Solution Copper Sulfate (CuSO ₄ ) ... 180 to 200 g / l Sulfuric Acid (H ₂ SO ₄ ) ... 50 to 70 g / l Solution Temperature ... 25 ° C. Current Density ... 0.5-2 A / dm ^{2 When} electroplating with the above plating solution, a metal is deposited from the plating solution as a metal salt solution by an electrolytic reaction, and copper sulfate plating can be performed on the surface of the above-mentioned chemical nickel plating layer 4. it can. The plating time is the time required for the surface gloss to appear, and is usually 15 to 30 minutes.

In the case where the above-mentioned surface plating layer 7 is a plating layer having gloss, the fifth step S5 is followed by the sixth step S6, while the above-mentioned surface plating layer 7 is provided with a gloss. In the case of forming a matte plating layer, the process proceeds to the seventh process S7 after the fifth process S5.

That is, in the above-described sixth step S6, the nickel plating layer 6 having gloss is formed on the surface of the copper sulfate plating layer 5. The composition of the plating solution used for the above nickel plating and the plating conditions are as follows.

Composition and Conditions of Nickel Plating Solution Nickel Sulfate (NiSO ₄ .6H ₂ O) ... 240 g / l Nickel Chloride (NiCl ₂ .6H ₂ O) ... 45 g / l Boric Acid ... 45 g / l Brightening Agent ... Appropriate Solution Temperature ... 45 ° C current density ... 0.5-3.0 A / dm ^{2 When} electroplating is performed for about 10 minutes with the above-mentioned plating solution, the surface of the copper sulfate plating layer 5 has a gloss of 6-7 µm. The nickel plating layer 6 can be formed, and since the layer thickness is 6 μm or more, pinholes as a cause of corrosion are eliminated.

On the other hand, in the above-mentioned seventh step S7, the matte nickel plating layer 6 is formed on the surface of the copper sulfate plating layer 5. The composition and plating conditions of the plating solution used for the above nickel plating are as follows.

Composition and Conditions of Nickel Plating Solution Nickel Sulfate ... 450 g / l Nickel Chloride ... 45 g / l Boric Acid ... 45 g / l Current Density ... 0.5 to 1.5 A / dm ² About 6 to 8 with the above plating solution If electroplating is performed for a minute, a matte nickel plating layer 6 having a thickness of 7 to 8 μ can be formed on the surface of the copper sulfate plating layer 5, and since the layer thickness is 6 μ or more, there is no pinhole as a corrosion factor. .

When the above-mentioned plated layer 7 is a gold plated layer, the process proceeds to the eighth step S8 or the eleventh step S11 after the sixth step S6 and the seventh step S7, and the surface plated layer 7 is silver plated. In the case of forming the layer, the process proceeds to the ninth process S9 or the twelfth process S12 after the sixth process S6 and the seventh process S7, and in the case of forming the surface plating layer 7 into the black nickel plating layer, the sixth process After S6 and the seventh step S7, the process moves to the tenth step S10 or the thirteenth step S13.

That is, in the above-mentioned eighth step S8 or eleventh step S11, a gold plating layer is formed as the surface plating layer 7 on the surface of the nickel plating layer 6. The composition and conditions of the plating solution used for this gold plating are as follows.

Composition and Conditions of Gold Plating Solution First gold cyanide cyanide: 1.5 g / l citric acid: 30 g / l potassium citrate: 50 g / l PH: 3.8-4.5 Solution temperature: 50 ° C.-60 C. Current density: 0.2 to 0.5 A / dm ^{2 A} gold plating layer can be formed on the surface of the nickel plating layer 6 by adjusting the plating time with the above-mentioned plating solution according to the plating layer thickness. For example, if the plating time is set to 20 seconds, a gold plating layer having a thickness of about 0.05μ can be formed.

Further, in the above-mentioned ninth step S9 or twelfth step S12, a silver plating layer is formed as a surface plating layer 7 on the surface of the nickel plating layer 6. The composition and conditions of the plating solution used for this silver plating are as follows.

Composition and Conditions of Silver Plating Solution First silver bromide (first silver cyanide): 15 g / l soda blue (sodium cyanide): 30 g / l PH: uncontrollable liquid temperature: 30 ~ 50 ° C Current density ... 0.2-0.5 A / dm ^{2 When} electroplating is performed for about 30 to 60 seconds with the above-mentioned plating solution, the surface of the nickel plating layer 6 is plated with silver having a thickness of about 1 µm. Layers can be formed.

Further, in the above-described tenth step S10 or thirteenth step S13, a black nickel plating layer is formed as the surface plating layer 7 on the surface of the nickel plating layer 6. The composition and conditions of the plating solution used for this black nickel plating are as follows.

Composition and Conditions of Black Nickel Plating Solution Nickel ammonium sulfate: 15 g / l Rochelle salt: 10 g / l Solution temperature: 30 to 35 ° C. Current density: 0.05 to 0.2 A / dm ^{2 With the} above plating solution For example, when electroplating is performed for about 2 minutes, a black nickel plating layer having a thickness of 1 μm or less can be formed on the surface of the nickel plating layer 6.

In summary, the surface of the golf ball main body 2 made of rubber such as neoprene rubber, natural rubber, and synthetic rubber is provided with a number of minute irregularities 3a, and the air existing in the surface layer of the main body 2 is blown out. Since the formed honing layer 3 is formed, the unevenness 3 a acts on the chemical nickel plating layer 4 as an anchor effect.

Therefore, the strong adhesion of the chemical nickel plating layer 4 to the surface of the rubber golf ball body 2 can be obtained, and the chemical nickel plating layer 4 and the plating layers 5, 6, which are the upper layers thereof. There is no peeling of No. 7 and there is an effect that the product value can be greatly improved.

In the correspondence between the configuration of the present invention and the above-described embodiment, the ball body of the present invention corresponds to the golf ball body 2, and the same applies to the chemical plating layer and the chemical nickel plating layer 4. The surface plating layer 7 corresponds to a black nickel plating layer, a gold plating layer, and a silver plating layer, but the present invention is not limited to the configuration of the above-described embodiment.

[Brief description of drawings]

FIG. 1 is an external view showing a decorative ball of the present invention.

FIG. 2 is an enlarged cross-sectional view of a main part of a decorative ball.

FIG. 3 is a process drawing showing a honing process and a plating process.

[Explanation of symbols]

 2 ... Golf ball body 3 ... Honing treatment layer 4 ... Chemical nickel plating layer 5 ... Copper sulfate plating layer 6 ... Nickel plating layer 7 ... Surface plating layer

Claims (1)

[Scope of utility model registration request] 1. A honing treatment layer is formed on the surface of a rubber ball body, and black nickel is formed on the surface of the honing treatment layer through a chemical plating layer, a copper sulfate plating layer and a nickel plating layer.
A decorative ball having a surface-plated layer of either gold or silver.