Painting material for painting base of fishing component and the like and method for forming the same

JP2024091034A5Active Publication Date: 2025-04-23DAIWA SEIKO CORPORATION
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Patent Information

Application Number
JP2022207306
Authority / Receiving Office
JP · JP
Patent Type
Applications
Current Assignee / Owner
Filing Date
2022-12-23
Publication Date
2025-04-23
Estimated Expiration
2042-12-23

AI Technical Summary

Technical Problem

Existing methods for forming coatings on fishing members, such as fishing reels and rods, struggle to achieve a stable metallic appearance with high brightness and few defects.

Method used

A coated article featuring a metal layer with indium particle structures, where each indium flake has a cumulative median particle size of 1 μm or less, and the particle size ranges from 40 μm to 300 μm, applied with a specific coating method involving solvent dispersion and spray radiation, and optionally includes an undercoat and overcoat layers.

Benefits of technology

The solution provides a stable metallic appearance with high brightness and few defects, ensuring a uniform and mirror-like finish on fishing members.

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Abstract

To provide a painting material including a metal layer having indium particle structures having metal-like appearance that has high luminance, has less failures, and is stable, a fishing reel or a fishing rod, and a method for forming the same.SOLUTION: A fishing reel or a fishing rod includes a painting material 1 provided directly or indirectly on a surface of a base of a fishing component, the painting material including a metal layer 1a having many indium particle structures containing many indium flakes. Respective particle sizes of the indium flakes have a particle size of the accumulated middle value 50%, the particle size being equal to or smaller than 1 μm. Particle sizes of the indium particle structures are in a range from 40 μm to 300 μm.SELECTED DRAWING: Figure 1
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Description

[Technical field]

[0001] The present invention relates to a coating for coating a substrate such as a fishing rod and a method for forming the coating. The present invention also relates to a fishing reel or fishing rod having such a coating. The present invention can also be applied to sports equipment such as golf club shafts and tennis rackets and a method for forming a coating thereon. [Background technology]

[0002] Conventionally, the use of indium vapor deposition has been known to be capable of improving the appearance quality.

[0003] As an example of such a surface decorative structure, Patent Document 1 discloses a grill cover structure attached to a radiator grille provided at the front opening of a vehicle and formed in a lattice pattern by battens, in which a black layer is formed on part of the back side of the front part of the grill cover formed from a transparent flat plate base material, and a grill color layer of approximately the same color as the battens of the radiator grille is formed on top of that, the grill color layer is formed to a thickness that makes the rear side a smooth surface, and the grill cover structure is formed by indium vapor deposition. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] JP 2000-344032 A Summary of the Invention [Problem to be solved by the invention]

[0005] However, the method according to Patent Document 1 has a problem in that it is difficult to form a coating on the fishing rod member that has high brightness and a stable appearance (metallic color tone) with few defects.

[0006] An object of the present invention is to provide a coating comprising a metal layer having an indium particle structure, which has high brightness and a stable metallic appearance with few defects, a fishing reel or fishing rod having the same formed thereon, and a method for forming the same. Other objects of the present invention will become apparent by referring to the entire specification. [Means for solving the problem]

[0007] One embodiment of the present invention relates to a coating material comprising a metal layer having a large number of indium particle structures containing a large number of indium flakes, which is provided directly or indirectly on the surface of a substrate of a fishing rod, wherein the particle diameter of each of the indium flakes is 1 μm or less as a cumulative median 50% particle diameter, and the particle diameter of the indium particle structure is in the range of 40 μm to 300 μm.

[0008] In a coated article according to one embodiment of the present invention, the indium particle structure occupies a proportion per unit area of ​​the surface of the coated article of 25% or more, more preferably 50% or more, and less than 100%, more preferably 90% or less.

[0009] In a coating according to one embodiment of the present invention, the height of the indium particle structures is in the range of 0.1 μm to 10 μm.

[0010] In a coated article according to one embodiment of the present invention, a primer layer is formed between the substrate and the metal layer.

[0011] In a coated article according to one embodiment of the present invention, a topcoat layer is formed on the surface of the metal layer.

[0012] A coating method for forming a coated object according to one embodiment of the present invention includes a step of dispersing a large number of indium flakes in a solvent and spraying the dispersed indium flakes by spraying, and a step of drying the solvent, and is a coating method for forming a coated object by repeating these steps multiple times, wherein the particle diameter of each of the indium flakes is 1 μm or less as a cumulative median 50% particle diameter, and the particle diameter of the indium particle structure is in the range of 40 μm to 300 μm.

[0013] In the coated article according to one embodiment of the present invention, the solvent is any one of a ketone-based solvent, an ether-based solvent, and an ester-based solvent, or a combination of any two or more of them.

[0014] A fishing reel according to one embodiment of the present invention includes a reel body and any of the above-mentioned coatings formed on at least a portion of the surface of the reel body.

[0015] A fishing rod according to one embodiment of the present invention comprises a rod body and any of the above-mentioned coatings formed on at least a portion of the surface of the rod body. Effect of the Invention

[0016] According to the above-described embodiments of the present invention, it is possible to provide a coated article including a metal layer having an indium particle structure, which has high brightness and a stable metallic appearance with few defects, a fishing reel or fishing rod formed therewith, and a method for forming the same. [Brief description of the drawings]

[0017] [Figure 1] 1 is a diagram showing a schematic diagram of a painted object according to an embodiment of the present invention; [Diagram 2] 1 is a diagram showing a schematic diagram of a painted object according to an embodiment of the present invention; [Diagram 3] 1 is a diagram showing a schematic diagram of a painted object according to an embodiment of the present invention; DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0018] Hereinafter, an embodiment of the present invention will be described in detail with reference to the accompanying drawings. Elements common to multiple drawings are designated by the same reference numerals throughout the multiple drawings. Please note that the drawings are not necessarily drawn to scale for ease of explanation.

[0019] A coated article according to an embodiment of the present invention will be described with reference to FIG. 1. As shown in FIG. 1, the coated article 1 according to an embodiment of the present invention is a coated article 1 including a metal layer 1a having a large number of indium particle structures containing a large number of indium flakes, which is directly or indirectly provided on the surface of a base material 2 of a fishing tool, and the particle diameter of each of the indium flakes is 1 μm or less at a cumulative median 50% particle diameter, and the particle diameter of the indium particle structure is in the range of 40 μm to 300 μm. Here, the fishing tool refers to a fishing reel, a fishing rod, a reel seat, a lure, or a grip. In addition, the indium flakes refer to, for example, evaporated indium particles obtained by forming a metal layer containing indium on a base material having peelability by vacuum deposition, and peeling, crushing, and dispersing the metal layer, and the indium particle structure refers to an aggregate of a large number of indium flakes (usually 10,000 to 10 billion particles). In addition, the coated article can also be rephrased as a coating film or coating layer containing the metal layer.

[0020] According to the coated article of the present invention, it is possible to provide a coated article including a metal layer having an indium particle structure, which has a high brightness, few defects, and a stable metallic appearance. More specifically, it is possible to form a high brightness, few defects, and a stable metallic coating film structure.

[0021] In the coated article according to one embodiment of the present invention, the indium particle structure occupies 25% or more, more preferably 50% or more, and less than 100%, more preferably 90% or less of the surface area of ​​the coated article, thereby making it possible to form a high brightness appearance.

[0022] In the coating according to one embodiment of the present invention, the height of the indium particle structure is in the range of 0.1 μm to 10 μm, thus making it possible to form a good appearance without cloudiness.

[0023] Next, as shown in Fig. 2, in a coated article 1 according to one embodiment of the present invention, an undercoat layer 3 is formed between the substrate 2 and a metal layer 1a. In this way, it is possible to form a highly smooth and bright appearance.

[0024] Next, as shown in Fig. 3, in the coated article 1 according to one embodiment of the present invention, an overcoat layer 4 is formed on the surface of the metal layer 1a. In this way, the metal layer can be fixed.

[0025] A coating method for forming a coated object according to one embodiment of the present invention includes a step of dispersing a large number of indium flakes in a solvent and spraying the dispersed indium flakes by spraying, and a step of drying the solvent, and is a coating method for forming a coated object by repeating these steps multiple times, wherein the particle diameter of each of the indium flakes is 1 μm or less as a cumulative median 50% particle diameter, and the particle diameter of the indium particle structure is in the range of 40 μm to 300 μm.

[0026] According to a method for forming a coated article according to one embodiment of the present invention, it is possible to provide a coated article including a metal layer having an indium particle structure, which has high brightness and a stable metallic appearance with few defects.

[0027] A method for forming a coated article according to one embodiment of the present invention will be described in more detail. First, a fishing rod member to be coated is prepared (step 1). Then, if necessary, a primer is applied to the material (base material) of the fishing rod member to form a smooth layer (primer layer) (step 1.2). If the surface of the material (base material) is highly smooth, it is not necessary to provide such a primer layer on the material (base).

[0028] Next, a large number of indium flakes are dispersed in a solvent and applied to the material (substrate) using a spray (for example, a spray gun) (step 2). At this time, after the fine indium particles land on the material (substrate), they form an indium particle structure, and by controlling the particle diameter of the indium particle structure (after the solvent has evaporated) to be in the range of 40 μm or more and 300 μm or less, overlapping of the indium particle structures after landing can be suppressed.

[0029] Here, if the spread of the indium particle structure after landing is less than 40 μm, the solvent evaporates quickly, so the indium flakes cannot spread sufficiently, and as a result, they gather and become white. On the other hand, if the particle diameter after the formation of the indium particle structure (in a state where the solvent has evaporated) is greater than 300 μm, the indium particle structure spreads widely after landing, so that adjacent indium particle structures merge with each other to form large islands. Since the size of the islands is large enough to be confirmed by the naked eye, a uniform mirror appearance cannot be obtained. In addition, since the solvent evaporates slowly, it is not suitable for overcoating. Here, landing refers to, for example, in the case of spray emission, the atomized indium flake-containing solvent reaching the substrate (the same applies throughout this specification). In addition, for example, in the case of painting using a spray gun, it is possible to control the spread of the indium particle structure after landing by adjusting the pattern pressure, atomization pressure, discharge amount, gun distance, gun movement speed, and number of coats. Next, the applied solvent is dried (step 3). This process can be repeated several times (by applying multiple coats) as necessary to achieve a more uniform finish. As the solvent, any one of ketone-based solvents, ether-based solvents, and ester-based solvents, or a combination of two or more of these, can be used.

[0030] Next, the influence on the appearance of the indium particle structure formed by the landing of indium particles due to the difference in particle size (solvent evaporated state) after the solvent has evaporated will be described. First, when the particle size (solvent evaporated state) of the indium particle structure formed by the landing of indium particles after the solvent has evaporated is 20 μm to less than 120 μm and the thickness (height) is greater than 10 μm, it was found that, when observed under a microscope magnified 200 times, the paint atomization size during painting is small, so that the indium particle structure dries immediately after landing, and the indium flakes gather without sufficiently spreading, and the thick parts are partially whitened and appear cloudy overall, resulting in an unsatisfactory appearance, as shown in Table 1. It was also found that, when the particle size is less than 20 μm to less than 120 μm and the thickness (height) is less than 0.1 μm, the thickness is too thin to whiten, but it is dark and lacks luster, so it does not have a metallic appearance.

[0031] [Table 1]

[0032] In contrast, when the particle diameter (after the solvent has evaporated) of the indium particle structure formed by the impact of indium particles is in the range of 40 μm to 300 μm (for example, 50 μm to 260 μm) and the thickness (height) is in the range of 0.1 μm to 10 μm, it was found that, when observed under a microscope at a magnification of 200 times, the paint atomization size during painting is appropriate and overlapping of the indium particle structure after impact can be suppressed, resulting in a good appearance, as shown in Table 2. In particular, it was found that, since the solvent dries in about 10 seconds after the formation of the indium particle structure, a stable metallic tone is expressed when repainted.

[0033] [Table 2]

[0034] Next, when the particle diameter (in the state where the solvent has evaporated) of the indium particle structure formed by the impact of indium particles is in the range of more than 300 μm (for example, 330 μm or more), when observed under a microscope magnified 200 times, as shown in Table 3, the indium particle structure spreads widely after impact (the paint atomization size during coating is large), so the indium particle structure overlaps as it spreads after impact and is separated into large island and large sea portions, resulting in a sea-island pattern and color unevenness, making it impossible to obtain a uniform mirror appearance. In addition, it was found that it takes more than one minute for the solvent to dry, which causes problems with overcoating after drying.

[0035] [Table 3]

[0036] As described above, it has been found that when the particle diameter (state after the solvent has evaporated) of the indium particle structure formed by the impact of indium particles is in the range of 40 μm to 300 μm and the thickness (height) is in the range of 0.1 μm to 10 μm, it is possible to provide a coated article including a metal layer having an indium particle structure, which has high brightness and a stable metallic appearance with few defects.

[0037] Although not shown, a fishing reel according to one embodiment of the present invention is configured to include a reel body and any of the above-mentioned coatings formed on at least a portion of the surface of the reel body. In this way, it is possible to provide a fishing reel having a coating that includes a metal layer having an indium particle structure, which has high brightness and a stable metallic appearance with few defects.

[0038] Also, although not shown, a fishing rod according to one embodiment of the present invention is configured to include a rod body and any one of the above-mentioned coatings formed on at least a portion of the surface of the rod body. In this way, it is possible to provide a fishing rod having a coating including a metal layer having an indium particle structure, which has high brightness and a stable metallic appearance with few defects.

[0039] The present invention can also be applied to sporting goods such as golf club shafts and tennis rackets, and to a method for forming coatings thereon.

[0040] The dimensions, materials, and arrangement of each component described in this specification are not limited to those explicitly described in the embodiments, and each component can be modified to have any dimensions, materials, and arrangement that can be included in the scope of the present invention. In addition, components not explicitly described in this specification can be added to the described embodiments, and some of the components described in each embodiment can be omitted. [Explanation of symbols]

[0041] 1 Painted items 1a metal layer 2 Base material 3 Undercoat layer 4 Top coat layer

Claims

1. A coating comprising a metal layer having a large number of indium particle structures including a large number of indium flakes, the metal layer being provided directly or indirectly on a surface of a substrate of a fishing rod, A coated article, characterized in that the particle size of each of the indium flakes is 1 μm or less as a cumulative median 50% particle size, and the particle size of the indium particle structure is in the range of 40 μm to 300 μm.

2. The coated article according to claim 1 , wherein the indium particle structure occupies a proportion per unit area of ​​the surface of the coated article of 25% or more, more preferably 50% or more, and less than 100%, more preferably 90% or less.

3. The coating according to claim 1 or 2, wherein the height of the indium particle structures is in the range of 0.1 μm to 10 μm.

4. The coated article according to claim 1 , wherein a primer layer is formed between the substrate and the metal layer.

5. The coated article according to claim 1 , further comprising a topcoat layer formed on the surface of the metal layer.

6. A coating method comprising the steps of dispersing a large number of indium flakes in a solvent and spraying the dispersion by spraying, and drying the solvent, the steps being repeated a number of times to form a coated object, A method for coating a coated object, characterized in that the particle diameter of each of the indium flakes is 1 μm or less as a cumulative median 50% particle diameter, and the particle diameter of the indium particle structure is in the range of 40 μm to 300 μm.

7. The coating method according to claim 6, wherein the solvent is any one of a ketone-based solvent, an ether-based solvent, and an ester-based solvent, or a combination of any two or more thereof.

8. 2. A fishing reel comprising: a reel body; and the coating according to claim 1 formed on at least a portion of the surface of the reel body.

9. A fishing rod comprising a rod body and the coating according to claim 1 formed on at least a part of the surface of the rod body.