Member and method for manufacturing the same

Abstract

To provide: a partial metal design having high positional dimensional accuracy and excellent wear resistance on a product composed of resin and metal that permit metal deposition decoration; and a method for manufacturing the metal design.SOLUTION: A base material 10 molded with rein or metal that permits metal deposition includes a recess 20 formed simultaneously with molding or formed in post-processing. After decoration is carried out in the order of undercoat, metal deposition, middlecoat, and topcoat, polishing of a design surface is carried out to form a character 50 of the recess with a metal design.SELECTED DRAWING: Figure 1A

Description

[Technical Field]

[0001] This invention relates to a method for decorating products made of resin, metal, glass, etc., and to an exterior design component with a partially metal-vapor-deposited portion that has excellent abrasion resistance and a high degree of freedom in coloring, and to a method for manufacturing the design component. [Background technology]

[0002] recent years, Materials There is a need for partial metal design decoration, such as a brand logo, to create a sense of luxury. Conventional decoration techniques for this type include a method using hot stamping as in Patent Document 1, and when metal vapor deposition is used, a method in which masking is performed in a pre-deposition process as in Non-Patent Document 1. Also known is a method as in Patent Document 2 in which raised portions are provided, metal decoration is performed, the portions are polished, and then only the raised portions are decorated again to partially change the design. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Patent Publication No. 2011-73345 [Patent Document 2] Patent Publication No. 2022-11410 [Patent Document 3] Patent Publication No. 2019-107921 Summary of the Invention [Problem to be solved by the invention]

[0004] However, hot stamping, as in Patent Document 1, poses challenges in terms of positional accuracy and foil conformity to the product's shape. Metal vapor deposition techniques using a masking process, as in Non-Patent Document 1, are limited to decorating transparent products from the backside. While it is possible to use masking on the product surface that is intended to be removed after metal vapor deposition, using a jig requires a design that prevents the metal from being blown into non-vapor-deposited areas. Masking with a film-like material with an adhesive, such as tape, poses challenges in terms of placement accuracy and residual adhesive components that can cause quality and appearance defects in post-processing. Because metal vapor deposition films, including those produced by hot stamping, are thin, a protective resin coating is typically applied, but this can cause problems with wear and tear over time. When nickel plating is applied to a product with a convex shape, as in Patent Document 2, and then polished and removed, and a second plating of a different color is then applied to the convex areas, the second plating can cover the entire product. When masking is used, the same challenges as those discussed above apply. Although the patent states that a convex shape can be formed by laser irradiation with a depth of 50 μm as an example, there is a problem with the small height difference, which can scratch the concave portion when polishing. Even if the concave portion can be made deep, there are limitations to the shapes that can be achieved by laser irradiation. For example, smooth chamfers and rounded shapes are difficult to form. Because edges are generated, there are also safety issues when using it for exterior parts. Patent Document 2 is a patent limited to watch dials, but when using similar decoration on product exteriors, ensuring the adhesion of the paint on the plating also becomes an issue. Since the areas where the second plating is applied will be partially convex, ensuring wear resistance becomes an issue.

[0005] The present invention has been made in consideration of the above-mentioned problems of the prior art, and its object is to provide a metal decoration having high positional accuracy and excellent wear resistance. Materials and a method for manufacturing the member. [Means for solving the problem]

[0006] The present invention MaterialsThe manufacturing method is characterized by comprising a molding step of forming a recess on the design surface, a step of forming a metal decorative coating layer on the entire design surface, and a step of peeling off the metal decorative coating layer other than the recess. The present invention Materials The product has a recess formed in a molding process and a design surface that is peeled off after forming a metal decorative coating layer, and the recess is provided with metal decoration. [Effects of the Invention]

[0007] According to this invention, it is possible to efficiently obtain a design in which partial metal decoration is applied to the exterior with high positional accuracy and excellent wear resistance, without being restricted by the material or color of the components. [Brief explanation of the drawings]

[0008] [Figure 1A] FIG. 1 is a flowchart showing the flow of a manufacturing method of the present invention. [Figure 1B] FIG. 1 is an external view of Example 1 at the time when the molding process is completed. [Figure 1C] FIG. 1 is an external view of Example 1 at the time of completion of the topcoat process. [Figure 1D] FIG. 1 is an external view of Example 1 at the time of completion of a polishing process. [Figure 2] 1 is a cross-sectional image of a recess of the present invention. [Figure 3] 1 is a cross-sectional image of the decorative layer configuration of Example 1. [Figure 4] 1 is a cross-sectional image of a product according to Example 1. [Figure 5A] FIG. 10(a) is a front view of the second embodiment. [Figure 5B] FIG. 10B is a perspective view of the second embodiment. [Figure 6A] FIG. 10 is a flowchart showing the flow of the manufacturing method of Example 3. [Figure 6B] 10 is a cross-sectional image of a product according to Example 3. [Figure 7A] FIG. 10 is a flowchart showing the flow of the manufacturing method of Example 4. [Figure 7B] 10 is a cross-sectional image of a product according to Example 4. [Figure 8A] FIG. 10 is a flowchart showing the flow of the manufacturing method of Example 5. [Figure 8B] 10 is a cross-sectional image of the product of Example 5. [Figure 9A] FIG. 10 is a flowchart showing the flow of the manufacturing method of Example 6. [Figure 9B] 10 is a cross-sectional image of the product of Example 6. [Figure 10A] FIG. 10 is a flowchart showing the flow of the manufacturing method of Example 7. [Figure 10B] 10 is a cross-sectional image of the product of Example 7. [Figure 11A] FIG. 10 is a flowchart showing the flow of the manufacturing method of Example 8. [Figure 11B] 10 is a cross-sectional image of the product of Example 8. [Figure 12A] FIG. 10 is a flowchart showing the flow of the manufacturing method of Example 9. [Figure 12B] 10 is a cross-sectional image of the product of Example 9. [Figure 13A] FIG. 20 is a flowchart showing the flow of the manufacturing method of Example 10. [Figure 13B] 10 is a cross-sectional image of the product of Example 10. [Figure 14A] FIG. 16 is a flowchart showing the flow of the manufacturing method of Example 11. [Figure 14B] 11 is a cross-sectional image of the product of Example 11. [Figure 15A] FIG. 16 is a flowchart showing the flow of the manufacturing method of Example 12. [Figure 15B] 12 is a cross-sectional image of the product of Example 12. [Figure 16A] FIG. 13 is a flowchart showing the flow of the manufacturing method of Example 13. [Figure 16B] 13 is a cross-sectional image of the product of Example 13. DETAILED DESCRIPTION OF THE INVENTION

[0009] In the member of the present invention, the molded article or plate material used as the substrate is not particularly limited, and examples of resins include phenolic resin (PF), epoxy resin (EP), melamine resin (MF), urea resin (urea resin, UF), unsaturated polyester resin (UP), alkyd resin, polyurethane (PUR), thermosetting polyimide (PI), polyethylene (PE), high density polyethylene (HDPE), medium density polyethylene (MDPE), low density polyethylene (LDPE), polypropylene (PP), polyvinyl chloride (PVC), polyvinylidene chloride, polystyrene (PS), polyvinyl acetate (PVAc), poly Materials that can be used include tetrafluoroethylene (PTFE), ABS resin (acrylonitrile butadiene styrene resin), AS resin, acrylic resin (PMMA), polyamide (PA), nylon, polyacetal (POM), polycarbonate (PC), modified polyphenylene ether (m-PPE, modified PPE), polybutylene terephthalate (PBT), polyethylene terephthalate (PET), polyethylene terephthalate with glass resin (PET-G), glass fiber reinforced polyethylene terephthalate (GF-PET), and cyclic polyolefin (COP). Metals that can be used include pure aluminum, various aluminum alloys, iron, stainless steel, various stainless steel alloys, pure titanium, various titanium alloys, brass, copper, zinc, and zinc alloys. Among these, austenitic stainless steel is the most preferable. This is because austenitic stainless steel is used in many industrial products without a coating and has excellent rust resistance. Therefore, in this invention, it can be used without surface treatment after removing the decorative coating layer. The substrate is not limited to resin or metal, but may be any material that can be molded, such as glass or ceramics.

[0010] In the shape of the present invention, a recess is formed on the design surface of the component molded with the above-mentioned component, but the method for forming the recess is not limited thereto. If the component is made of resin, the recess may be formed in a mold during injection molding, or may be formed by cutting after molding. If the component is made of metal, the recess may be formed in a mold such as forging or die casting, or may be formed by cutting after molding. By etching It may be formed.

[0011] In the present invention, an undercoat is applied onto the substrate, a metal film is formed on the undercoat by metal vapor deposition, a topcoat is applied onto the metal film, and then the design surface is polished.

[0012] The undercoat layer may be made of a cellulose-based paint such as an acrylic resin, a polyester resin, a polyurethane resin, a vinyl acetate resin, nitrocellulose, or cellulose acetate, and may be any material that improves adhesion to the metal film and weather resistance. The undercoat is applied depending on the required performance.

[0013] The metal layer coated on the undercoat is not particularly limited as long as it can form a coating layer, and examples include metals such as tin, aluminum, chromium, nickel, titanium, copper, gold, silver, brass, SUS, and indium, as well as metal alloys and metal compounds. However, when a metal design that does not affect radio wave characteristics is required in electronic devices, etc., a metal that easily forms an island structure to form a non-conductive vapor deposition film is preferred.

[0014] Preferred methods for forming the coating layer include physical vapor deposition (PVD) methods such as vacuum deposition, sputtering, and ion plating; molecular beam epitaxy (MBE); and chemical vapor deposition (CVD) methods such as thermal CVD, photo-CVD, plasma CVD, atomic layer CVD, epitaxial CVD, and MOCVD. Vacuum deposition involves placing a metal material to be deposited and a substrate in a high vacuum, heating and evaporating the metal material, and allowing it to adhere and condense on the surface of the substrate, forming a thin metal coating. Sputtering involves introducing low-pressure argon gas into a vacuum, placing the metal material to be deposited on the cathode, and generating a glow discharge. The argon ions generated by the glow discharge strike and scatter the metal material, which then deposits and adheres to the surface of the substrate film, forming a metal coating. On the other hand, ion plating involves placing a substrate as the cathode and a vaporizing metal material as the anode. The evaporated metal particles are ionized as they pass through a glow discharge, resulting in the ionized metal particles adsorbing strongly to the substrate surface, forming a metal coating with improved adhesion. MBE is a method in which raw materials are evaporated in a high vacuum and then irradiated onto the substrate surface to deposit thin films. Thermal CVD involves vaporizing gaseous or liquid raw materials at high temperatures and growing thin films through chemical reactions in the vapor phase or on the substrate surface. The energy for the chemical reaction is provided in the form of thermal energy from the substrate or the reactor wall. Photo-CVD provides the energy via light energy, while plasma-assisted CVD provides it via plasma. Atomic layer CVD and epitaxial CVD control the atomic layer structure. Furthermore, MOCVD is used when the gas phase is an organic compound.

[0015] The metal layer is covered with a middle coat layer, which is preferably formed from an acrylic resin or a urethane resin. The acrylic resin or urethane resin used here is preferably a two-component acrylic urethane resin. This acrylic urethane resin is particularly useful in that it can impart weather resistance and scratch resistance. Since the base layer is a vapor deposition layer, a paint with a component ratio that has good affinity with the vapor deposition layer is used. The thickness of the middle coat layer is more preferably in the range of approximately 5 to 100 μm. However, the middle coat is not essential and can be applied depending on the required performance.

[0016] The middle coat layer is covered with a top coat layer, and this top coat layer is preferably formed from an acrylic resin or a urethane resin. The acrylic resin or urethane resin used here is preferably a two-component acrylic urethane resin. This acrylic urethane resin is particularly useful in that it can impart weather resistance and scratch resistance. The thickness of the top coat layer is more preferably in the range of about 5 to 100 μm. Topcoat is applied according to required performance. .

[0017] The middle coat layer and top coat layer may be transparent or translucent depending on the intended use of the component. A transparent top coat layer (clear layer) is preferred to maximize the metallic luster of the vapor-deposited layer. To improve appearance and decorativeness, various dyes, pigments, or other colorants, such as phthalocyanine blue pigments, azo red pigments, aluminum flakes, and mica powder, may be added. Other additives, such as ultraviolet absorbers and gloss adjusters, may also be added. The ultraviolet absorber effectively prevents deterioration of the non-conductive component and the underlying components during exposure to sunlight, while the gloss adjuster imparts excellent gloss to the surface of the non-conductive component. The top coat can be applied by spray coating or dip coating. For metals, electro-deposition coating can also be used.

[0018] In the stripping process of the present invention, methods of polishing can be wheel polishing, belt polishing, roller bar polishing, rotary polishing, and other methods that do not expose the recesses to the abrasive. On the other hand, methods such as vibration polishing, blast polishing, and ultrasonic polishing, which randomly expose the abrasive to the entire component, including the recesses, are unsuitable. There are no restrictions on the abrasive, and it can be selected based on the hardness of the material, the hardness of the top coat, and the desired design after polishing. For example, sandpaper with a desired grit size or a wire brush can be used. For metal substrates, relatively hard abrasives such as polishing paper, polishing cloth, or grinding stone with abrasive grains made from minerals or ceramics such as alumina, emery grit, silicon carbide, diamond, or diamond can be used to smooth the surface of the substrate or to achieve a hairline finish. For a more mirror-like finish, polishing felt with finer abrasive grains can be used. Rough polishing and finish polishing processes can also be separated and combined. There are no restrictions on the dust removal method, and it can be selected from methods such as running water and air. Dust removal and heat dissipation effects are more efficient with running water, but in cases where water cannot be used due to product requirements, air can also be used. In addition, when mirror polishing is to be performed, wax and fiber abrasives may be used.

[0019] Although there are no restrictions on the concave shape of the present invention, if the dimension of the distance d2 in Figure 2 becomes deep, it may be difficult to form the coating film or vapor deposition film on a vertical wall where the angle d3 is 90 degrees. In this case, it is desirable to set the angle d3 to 90 degrees or less. [Example]

[0020] Next, the present invention will be described in more detail with reference to examples, but the present invention is not limited to these examples in any way.

[0021] Example 1 FIG. 1A is a flow chart showing the flow of the manufacturing method of the present invention.

[0022] Step S 2 In the molding step, a white polycarbonate resin was injection molded using a mold to obtain a substrate 10, and then recessed letters 20 were formed by cutting using a machining center. Figure 1B shows an external view of the substrate. Figure 2 shows the recessed letters 20. Cross-sectional imageThe width dimension d1 of the characters is 1 to 1.5 mm, and the depth dimension d2 is 0.5 mm. The angle d3 of the vertical wall of the recess is 45°. Setting this angle is effective in efficiently decorating the vertical wall and making the characters appear three-dimensional.

[0023] Figure 3 shows the image of the decorative layer structure that will be implemented later. Cross-sectional image Shows. The diagram shows a substrate 10, an undercoat layer 31, a metal vapor deposition film 32, a middle coat layer 33, and a top coat layer 34 stacked from the bottom.

[0024] Step S 4 In the (undercoat step), an acrylic paint was sprayed to form a transparent undercoat layer 31 having a thickness of about 8 μm.

[0025] Step S 6 In the metal vapor deposition step, aluminum was vapor-deposited using a vacuum vapor deposition machine to form an aluminum vapor-deposited layer 32 having a thickness of about 70 μm.

[0026] Step S 8 In the (middle coating step), a blue-colored acrylic paint was spray-painted to form a blue-colored middle coating layer 33 having a thickness of about 10 μm.

[0027] Step S 10 In the topcoat process, a transparent topcoat layer 34 with a thickness of approximately 10 μm was formed using a spray-coated acrylic paint. Figure 1C shows the appearance of the metal after the topcoat process was completed. The entire design surface, including the recesses, was colored blue, resulting in a metal design 30.

[0028] Step S 12 In the polishing process, the design surface is polished. Figure 4 shows a side view of this product. In order to polish the three-dimensional shape with a curved surface of R157 on the top surface and a curved surface of R2 on the shoulders uniformly and efficiently, an automatic rotary polishing machine was used, which supports three-dimensional movement of the abrasive material in seven axes. TaTo achieve a more lustrous finish, the polishing is carried out in two steps. The first polishing is carried out at 3000 RPM using an abrasive equivalent to #1500 grit to remove the decorative layer, and the second polishing is carried out at 3000 RPM using an abrasive equivalent to #3000 grit to achieve a lustrous finish. Ta Figure 1C shows the appearance of the product after the polishing process is completed. A more glossy design surface 40 was obtained than at the time of the molding process, and the recesses that were not touched by the polishing material became letters 50 with a metal design.

[0029] Example 2 The second embodiment is an embodiment according to the present invention in which the shape is a graphic. Figures 5A and 5B show another example 2. Figure 5A is a front view, and Figure 5B is a perspective view. The hatched areas are the areas where the metal design is applied, and as long as recesses can be formed, it is possible to implement patterns such as those shown in the figure, not just letters.

[0030] Example 3 In Example 3, the order of the polishing step and the topcoat step is reversed from that in Example 1. FIG. 6A shows a flowchart of the manufacturing method of Example 3. Step S 32 Polishing process S 30 It is also possible to apply a top coat after the above step. In this case, the top coat will also cover the recessed areas where the metal design is applied, so a transparent paint is preferred to make the metal design look effective. A cross-sectional image produced based on the manufacturing method of Example 3 is shown in Figure 6B. An undercoat layer 60 is formed on a substrate 10. A metal vapor deposition layer 70 is formed on the undercoat layer 60, a middle coat layer 80 is formed on the metal vapor deposition layer 70, and after polishing, a top coat layer 90 is formed on the middle coat layer 80. A feature of this structure is that the polished surface is covered with a top coat layer.

[0031] Example 4 Example 4 is an example of a process in which anodized aluminum is used as a coloring and protective film. Figure 7 A In Example 4, the substrate was made of aluminum. 92 The flowchart of the manufacturing method when using Step S 42 The substrate is pressed or cut to form recesses, and then S 44 Then, a protective film is formed by anodizing the entire substrate. 46 The subsequent decoration process is carried out, and 54It is also possible to carry out a polishing process to expose the anodized surface, and use the colored and protected surface of the anodized aluminum except for the recessed portion as a design. 7B shows a cross-sectional image produced based on the above. An anodized aluminum layer 100 is formed on the base material, which is an aluminum material 92, with recesses formed by pressing or cutting. An undercoat layer 110 is formed on the anodized aluminum layer 100. A metal vapor deposition layer 120 is formed on the undercoat layer 110, a middle coat layer 130 is formed on the metal vapor deposition layer 120, and a top coat layer 140 is formed on the middle coat layer 130.

[0032] Example 5 Example 5 is an example that utilizes ion plating. Figure 8 A In Example 5, a stainless steel substrate was used. 94 The flowchart of the manufacturing method when using Step S 62 The substrate is pressed or cut to form recesses, and then S 64 Then, a colored and protective film is formed by ion plating to cover the entire substrate. 66 The subsequent decoration process is carried out, and 74 The polishing process is then performed to expose the ion-plated surface, and the surface other than the recesses is colored and protected by ion plating as a design. A cross-sectional image produced based on this is shown in Figure 8B. An ion plating layer 150 is formed on the substrate, stainless steel material 94, and an undercoat layer 110 is formed on the ion plating layer 150. A metal deposition layer 120 is formed on the undercoat layer 110, a middle coat layer 130 is formed on the metal deposition layer 120, and a top coat layer 140 is formed on the middle coat layer 130.

[0033] Example 6 Example 6 illustrates options for manufacturing stainless steel materials. Figure 9A shows a flowchart of Example 6, illustrating a further manufacturing method using stainless steel material 160 as the substrate. In step S80, stainless steel material 160 is formed into substrate 160 by cutting, sheet metal pressing, forging, or die casting. Subsequently, in step S82, a recess is formed in substrate 160. Cutting, etching, molding, and simultaneous formation can be used as the recess formation method. Simultaneous formation can be specifically employed in the case of casting or die casting 7. Here, in cutting and etching, the inner wall of the recess is shaped to stand perpendicular to the bottom surface of the recess. On the other hand, in die casting or casting, the inner wall of the recess is shaped to connect to the bottom surface of the inner wall at an obtuse angle. In step S84, an undercoat is applied to the processed recess. In step S86, metal vapor deposition is performed on top of the undercoat. Aluminum vapor deposition is usually used, but indium vapor deposition, which has high environmental resistance, can also be used if the product is to be used in an environment where aluminum corrodes. A middle coat is applied in step S88, followed by a top coat in step S90. Finally, the polishing process is carried out in step S92. When applying the middle coat here, the decoration is set to be applied only to the minimum necessary area to ensure successful polishing and removal. Specifically, the stainless steel material is covered with multiple jigs, and the jig shape is set so that only the decorated areas are exposed, with unnecessary decoration attached to the jigs. By using jigs in this way, the polishing area can be reduced, improving polishing efficiency.

[0034] Example 6 manufacturing methods A cross-sectional image produced based on this is shown in Figure 9B. A stainless steel substrate 160 is machined into a concave shape, and an undercoat layer 170 is formed on top of it. A metal vapor deposition layer 180 is formed on the undercoat layer 170, a middle coat layer 190 is formed on the metal vapor deposition layer 180, and a top coat layer 200 is formed on the middle coat layer 190.

[0035] Example 7 FIG. 10A shows a flowchart of a manufacturing method for Example 7, in which a stainless steel material 160, which was forged and partially machined onto a substrate, was used as the exterior of a metal device. In step 100, the stainless steel material was formed using a forging press. Next, in step 102, a concave shape was formed in the stainless steel material. Specifically, the concave shape was formed by etching to a depth of 0.2 mm. In step 104, degreasing and cleaning were performed after the etching process. By performing the cleaning process in addition to degreasing, poor repellency was prevented. In step 106, a primer coat (metal adhesion) was applied. Spray coating was used to form a film thickness of 10 μm. In step 108, an undercoat (vapor deposition adhesion) was applied. Spray coating was used to form a film thickness of 10 μm. In step 110, metal vapor deposition was performed. Aluminum vapor deposition was performed to form a film thickness of 60 nm. In step 112, a middle coat (colored layer) was applied. Spray coating was used to form a film thickness of 10 μm. In step 114, a top coat (protective layer) was applied. Spray coating was performed, and the film thickness was 10 μm. In step 116, polishing was performed. Here, rough polishing, decorative layer removal, and hairline finishing were performed.

[0036] Example 7 manufacturing methods A cross-sectional image produced based on this is shown in Figure 10B. A stainless steel substrate 160 is machined into a concave shape, and a primer coat layer 210 is formed on top of it. A metal vapor deposition layer 230 is formed on an undercoat layer 220, a middle coat layer 240 is formed on the metal vapor deposition layer 230, and a top coat layer 250 is formed on the middle coat layer 240.

[0037] Example 8 FIG. 11A shows a flowchart of a manufacturing method for Example 8, in which a stainless steel material 160 pressed onto a substrate for a pen clip is used. In step S120, the stainless steel material was formed by pressing the plate. Subsequently, in step S122, a recess was formed. Specifically, a recess with a depth of 0.15 mm was formed by cutting. In step S124, contamination from the cutting process was removed by degreasing and cleaning. By performing the cleaning process in addition to degreasing, it was possible to prevent poor repellency. In step S126, a primer coat (metal adhesion) was applied. Spray coating was used to form a film thickness of 10 μm. In step S128, an undercoat (vapor deposition adhesion) was applied. Spray coating was used to form a film thickness of 10 μm. In step S130, metal vapor deposition was performed. Aluminum vapor deposition was performed to form a film thickness of 60 nm. In step S132, a middle coat (colored layer) was applied. Spray coating was used to form a film thickness of 10 μm. In step S134, a top coat (protective layer) was applied. Spray coating was performed, and the film thickness was 10 μm. In step S136, polishing was performed. Here, mirror polishing, rough polishing, decorative layer removal, and hairline finishing were performed.

[0038] Example 8 manufacturing methods A cross-sectional image produced based on this is shown in Figure 11B. A stainless steel substrate 160 is machined into a concave shape, and a primer coat layer 210 is formed on top of it. A metal vapor deposition layer 230 is formed on an undercoat layer 220, a middle coat layer 240 is formed on the metal vapor deposition layer 230, and a top coat layer 250 is formed on the middle coat layer 240.

[0039] Example 9 FIG. 12A shows a flowchart of a manufacturing method for Example 9, in which a stainless steel material 160 pressed onto a substrate for use as a pen clip. In step S140, the stainless steel material was pressed into a plate to form a recess. Specifically, recesses 0.02 mm to 0.05 mm deep were formed by cutting. In step S142, contamination from the cutting process was removed by degreasing and cleaning. By performing the cleaning process in addition to degreasing, poor repellency was prevented. In step S144, a primer coat (metal adhesion) was applied. Spray coating was performed to a film thickness of 10 μm. In step S146, an undercoat (vapor deposition adhesion) was applied. Spray coating was performed to a film thickness of 10 μm. In step S148, metal vapor deposition was performed. Aluminum vapor deposition was performed to a film thickness of 60 nm. In step S150, a middle coat (colored layer) was applied. Spray coating was performed to a film thickness of 10 μm. In step S152, polishing was performed. Here, a hairline finish was applied.

[0040] Example 9 manufacturing methods A cross-sectional image produced based on this is shown in Figure 12B. A stainless steel substrate 160 is machined into a concave shape, and a primer coat layer 210 is formed on top of it. A metal vapor deposition layer 230 is formed on an undercoat layer 220, and a middle coat layer 240 is formed on the metal vapor deposition layer 230.

[0041] Example 10 FIG. 13A shows a flowchart of a manufacturing method for Example 10, in which a stainless steel material 160 machined as a base material for a metal lure is used. In step S160, the stainless steel material was shaped by machining. Subsequently, in step S162, a recessed shape was formed. Specifically, a recess with a depth of 0.15 mm was formed by machining. In step S164, contamination from the machining process was removed by degreasing and cleaning. By performing the cleaning process in addition to degreasing, poor repellency was prevented. In step S166, a primer coat (metal adhesion) was applied. It was spray-painted to a thickness of 10 μm. In step S168, an undercoat (vapor deposition adhesion) was applied. It was spray-painted to a thickness of 10 μm. In step S170, metal vapor deposition was performed. It was indium vapor deposition, and the indium film thickness was 60 nm. The use of indium enabled improved environmental resistance compared to aluminum. In step S172, a middle coat (colored layer) was applied. Spray coating was performed, and the film thickness was 10 μm. In step S174, a top coat (protective layer) was applied. Spray coating was performed, and the film thickness was 10 μm. In step S176, polishing was performed. Here, mirror polishing and hairline finishing were performed.

[0042] Example 10 manufacturing methods A cross-sectional image produced based on this is shown in Figure 13B. A stainless steel substrate 160 is machined into a concave shape, and a primer coat layer 210 is formed on top of it. An indium vapor deposition layer 260 is formed on an undercoat layer 220, a middle coat layer 240 is formed on the indium vapor deposition layer 260, and a top coat layer 250 is formed on the middle coat layer 240.

[0043] Example 11 FIG. 14A shows a flowchart of a manufacturing method for Example 11, in which a stainless steel material 160 machined onto a substrate is used as an aluminum plate. In step S180, the stainless steel material was shaped by machining. Subsequently, in step S182, a recess was formed. Specifically, a recess with a depth of 0.15 mm was formed by etching. In step S184, contamination from the etching process was removed by degreasing and cleaning. By performing the cleaning process in addition to degreasing, it was possible to prevent poor repellency. In step S186, a primer coat (metal adhesion) was applied. Spray coating was used to form a film thickness of 10 μm. In step S188, an undercoat (vapor deposition adhesion) was applied. Spray coating was used to form a film thickness of 10 μm. In step S190, metal vapor deposition was performed. Aluminum vapor deposition was performed, and the aluminum film thickness was 60 nm. In step S192, a middle coat (colored layer) was applied. Spray coating was used to form a film thickness of 10 μm. In step S194, a top coat (protective layer) was applied. Spray coating was performed, with a film thickness of 10 μm. In step S196, polishing was performed. Here, mirror polishing and a hairline finish were performed. Furthermore, in step S198, a colorless anodizing process was performed, which did not affect the painted colored parts.

[0044] Example 11 manufacturing methods A cross-sectional image produced based on this is shown in Figure 14B. A stainless steel material 160, which is the substrate, is machined into a concave shape, and a primer coat layer 210 is formed on top of it. An aluminum vapor deposition layer 230 is formed on an undercoat layer 220, a middle coat layer 240 is formed on the aluminum vapor deposition layer 230, and a top coat layer 250 is formed on the middle coat layer 240. An anodized aluminum layer 270 is formed on the top coat layer.

[0045] Example 12 FIG. 15A shows a flowchart of a manufacturing method for Example 12, in which a resin material 280 integrally molded on a substrate is used. In step S200, a mold is used to perform integral molding by concave injection molding. Subsequently, in step S202, an undercoat (deposit adhesion) is applied. In step S204, metal vapor deposition is performed. In step S206, a middle coat (colored layer) is applied. In step S208, the middle coat layer is polished from above. Two types of polishing were performed: rough polishing and finish polishing. In step S210, the product is cleaned after polishing, and polishing residue is removed. In step S212, a top coat (protective layer) is applied.

[0046] Example 12 manufacturing methods A cross-sectional image produced based on this is shown in Figure 15B. An undercoat layer 290 is provided on a material in which a base resin material 280 is integrally molded with a concave shape. A metal vapor deposition layer 300 is provided on the undercoat layer 290, a middle coat layer 310 is provided on the metal vapor deposition layer 300, and a top coat layer 320 is provided on the middle coat layer 310.

[0047] Example 13 FIG. 16A shows a flowchart of a manufacturing method for Example 13, in which a transparent substrate 330 is used as the substrate. In step S220, the transparent substrate 330, specifically an exterior member made of sapphire glass, is pre-processed according to its intended use. In step S222, a primer coat is applied to the decorative surface. In step S224, a clear color is applied on top of the primer coat layer. Transparency is ensured to make the most of the gloss of the aluminum vapor deposition underneath. In step S226, aluminum vapor deposition is performed. In step S228, a protective coat is applied. This is performed to prevent corrosion of the aluminum vapor deposition. In step S230, the outermost surface is polished.

[0048] Example 13 manufacturing methods A cross-sectional image produced based on this is shown in Figure 16B. A primer coating layer 340 is formed on a transparent material 330, which is the base material, after it has been machined to have a concave shape. A color clear pigmented layer 350 is applied on top of the primer coating layer 340. An aluminum vapor deposition layer 360 is formed on top of the color clear pigmented layer 350, and a protective coating layer 370 is formed on top of the aluminum vapor deposition layer 360. [Industrial Applicability]

[0049] By implementing the present invention, the design of the product logo and appearance can be improved. [Explanation of symbols]

[0050] 10 Base material 20 Characters formed with recesses 30 Decorative film applied to the substrate 31 Undercoat layer 32 Metal vapor deposition film 33 Middle Court layer 34 Top Coat layer 40 Polished substrate 50 Metallic design letters

Claims

1. A substrate; a recess formed on the substrate and having a coating layer; A design surface is provided in which the coating layer around the recess is peeled off, The coating layer is a decorative metal design component.

2. 2. The member according to claim 1, wherein the recess has a shape of a letter.

3. 2. The member according to claim 1, wherein the recess has a graphic shape.

4. 4. The member according to claim 1, wherein the substrate is made of a resin material.

5. 4. The member according to claim 1, wherein the substrate is a metal material.

6. The member according to claim 1, wherein the substrate is a glass material.

7. a substrate; a recess formed on the substrate and having a coating layer; A design surface is provided in which the coating layer around the recess is peeled off, A method for manufacturing a member in which the coating layer is a metal design decoration, forming the recess; forming the coating layer including a metal design decoration; A manufacturing method for an exterior part, comprising a step of peeling off the coating layer to form a design surface.

8. 8. The manufacturing method according to claim 7, wherein a top coat layer is formed before the step of peeling off the coating layer.

9. 8. The manufacturing method according to claim 7, wherein a top coat layer is formed after the step of peeling off the coating layer.

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