Metal badge decoration method combining magnetic control cat eye with foam molding

Abstract

The invention relates to a metal badge decoration method combining a magnetic control cat eye with foam molding, and relates to the technical field of surface decoration of metal badges, and the metal badge decoration method comprises the following steps: S1, coating the surface of a metal substrate with matte black stoving varnish, and curing the matte black stoving varnish; s2, cat eye powder glue and UV resin are mixed in proportion to form magnetic-sensitive mixed glue, and the badge pattern area is filled with the magnetic-sensitive mixed glue; s3, adopting a magnetic control device to guide the magnetic particles to be arranged to form cat eye textures; s4, covering the target area with foam generated by the neutral soap-based foam solution; and S5, after staged UV curing, foam is removed, and the composite decoration layer with cat eye optical variability and foam texture is formed. The technical limitation that only a single visual or tactile effect can be achieved in a traditional process is broken through.

Description

Technical Field

[0001] The present application relates to the technical field of surface decoration of metal badges, and in particular to a method for decorating metal badges by combining magnetically controlled cat's eyes with foam molding. Background Art

[0002] Currently, metal badges are primarily decorated using processes such as glue dripping, enamel, printing, or baking varnish. While these methods can achieve basic pattern filling and coloring, the visual effects are relatively simple, lacking three-dimensionality and dynamic light and shadow play. Traditional processes struggle to achieve complex optical gradients or natural textures, making them difficult to meet the artistic and differentiated demands of high-end customized products. Furthermore, existing technologies have limited control over local textures, making it impossible to consistently achieve fine relief or tactile effects in mass production.

[0003] In recent years, cat's eye glue has found application in nail art and jewelry due to its unique magnetically controlled optically variable properties. However, its industrial application on metal badges still faces challenges. For example, the arrangement of magnetic particles is significantly affected by the substrate material and the distribution of the magnetic field, making it difficult to achieve a stable cat's eye effect in complex patterns. Furthermore, while foam texture can provide a naturally random, bumpy texture, it has not yet been effectively integrated into the industrial production of metal badges due to its poor foam stability and difficulty in curing. Existing technologies often rely on manual operations, resulting in low yields and poor consistency, making large-scale application difficult.

[0004] The surface decoration technology of metal badges mostly adopts a single process, and the simple superposition of the cat's eye effect and foam texture can easily lead to conflicts in curing methods or material reactions, resulting in unstable quality of the finished product.

[0005] Therefore, there is an urgent need for an integrated process that can coordinate the arrangement of magnetically controlled cat's eye glue, foam transfer and UV curing to achieve high-quality decorative effects with dynamic light change and natural texture on metal substrates. Summary of the Invention

[0006] The technical problem to be solved by the present invention is to provide a metal badge decoration method combining magnetic cat's eyes with foam molding, which solves the technical problems of single visual effect and lack of three-dimensional layering in traditional metal badge decoration technology.

[0007] To achieve the above object, the present invention provides the following technical solutions: A method for decorating a metal badge by combining a magnetically controlled cat's eye with foam molding comprises the following steps: S1, matte black paint is applied to the metal substrate and cured; S2, mixing cat's eye powder glue and UV resin in proportion to form a magnetic sensitive mixed glue, and filling it into the badge pattern area; S3, uses a magnetic control device to guide the arrangement of magnetic particles to form a cat's eye texture; S4, covering the target area with foam generated by the neutral soap-based foam solution; S5, after staged UV curing, the foam is removed to form a composite decorative layer with cat's eye light change and foam texture.

[0008] Furthermore, the matte black baking paint has a curing temperature of 150-180° C. and a curing time of 5-10 minutes.

[0009] Furthermore, the mixing ratio of the cat's eye powder glue and the UV resin is 2g:40ml, and the transmittance of the UV resin is ≥90%.

[0010] Furthermore, the magnetic control device is a permanent magnet array or electromagnetic template with a preset magnetic pole distribution, and the magnetic field strength is 500-1500 Gauss.

[0011] Furthermore, the neutral soap-based foam solution comprises the following components: 90ml of deionized water; Cocamidopropyl Betaine 5ml; 3ml of glycerol; Sodium lauryl sulfate 1ml; 1ml of alcohol.

[0012] Furthermore, the foam covering adopts a silicone transfer tool or a bubble film directional application process, and the foam layer thickness is 0.2-1 mm.

[0013] Furthermore, the staged UV curing includes: Stage 1: irradiate the foam area with 365nm wavelength UV light for 1-2 minutes for pre-curing; The second stage: After mechanical removal of foam, a second UV irradiation for 3-5 minutes completes full curing.

[0014] Furthermore, a high-transmittance UV resin protective layer is coated on the surface of the composite decorative layer and then cured.

[0015] A metal badge prepared by any of the above methods, having on its surface: Dynamic cat's eye light bands formed by magnetic control; The random concave-convex texture produced by foam molding has a texture depth of 50-200μm.

[0016] Furthermore, the overlapping area between the cat's eye light band and the foam texture presents a light refraction enhancement effect, and a three-dimensional light-changing effect is visually visible.

[0017] In summary, the present application includes at least one of the following methods for decorating metal badges using a magnetic cat's eye combined with foam molding and the beneficial technical effects thereof: By combining magnetically controlled cat's eye glue arrangement with foam transfer curing, the metal badge surface simultaneously presents dynamic light-changing stripes and natural concave-convex textures, breaking through the technical limitations of traditional processes that can only achieve a single visual or tactile effect. By optimizing the foam solution formula and the staged UV curing process, the problem of the foam texture not adhering firmly to the metal substrate and being easy to collapse was solved; Programmable magnetic control template and local foam masking technology can flexibly adjust the pattern of cat's eye light effect and the distribution area of ​​foam texture. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is the process flow chart of the metal badge cat's eye-foam composite decoration provided by this application. DETAILED DESCRIPTION

[0019] In order to make the technical means, creative features, objectives and effects of the present invention easier to understand, the present invention is further described below in conjunction with specific embodiments.

[0020] The following is combined with Figure 1 This application is described in further detail.

[0021] The embodiment of the present application discloses a method for decorating a metal badge by combining a magnetically controlled cat's eye with foam molding. Example 1

[0022] Metal Base Pretreatment: The material used is a zinc alloy / copper badge blank, with a thickness of 1.2mm and a CNC engraved pattern on the surface. Cleaning Method: Immerse the badge in an acetone solution and ultrasonically clean it for 5 minutes to remove oil stains. Rinse with deionized water and blow dry with nitrogen.

[0023] Matte black paint coating and curing: Use an automatic spray gun to evenly spray, with a wet film thickness of 30μm. Bake at 150℃ for 5 minutes.

[0024] Cat's eye glue and UV resin mixture filling: 2g cat's eye powder glue, 40ml high-transmittance UV resin, stir in a blender for 10 minutes to reduce residual bubbles. Use a dispensing machine to fill the glue layer to a thickness of 0.5mm. After filling, let it stand for 2 minutes to defoam.

[0025] Magnetically controlled cat's-eye texture formation: A permanent magnet array template with a magnetic field strength of 800 Gauss is used. The magnets are placed close to the base of the badge, with the spacing between them controlled to 1mm. The effect is applied for 30 seconds to create a parallel stripe light effect. Alternatively, a gradient magnetic field template with a center strength of 1500 Gauss and an edge strength of 500 Gauss is used to achieve a radial light-changing effect.

[0026] Foam solution preparation and transfer: For every 100ml of foam solution, add 90ml of deionized water, 5ml of cocamidopropyl betaine, 3ml of glycerin, 1ml of sodium lauryl sulfate, and 1ml of alcohol. Mix in a blender for 5 minutes and use immediately. In practice, foam transfer can be performed manually or automatically. Manually, a silicone scraper is used to apply the foam to the target area. Automated processing involves a foam sprayer applying the foam to a specific area of ​​the badge.

[0027] UV staged curing: Using a UV wavelength of 365nm and an intensity of 80mW / cm², the resin surface in the foam contact area is cured for one minute for pre-curing, forming a support structure. A tungsten steel needle is then used to puncture the foam membrane, and nitrogen is blown away any remaining liquid film. The resin is then fully cured under the same UV conditions for three minutes, forming a texture with a depth of 100-150μm in the foam area.

[0028] Surface protection treatment: Use high-transmittance UV hard glue to coat the product surface and UV cure for 3 minutes. Example 2

[0029] Metal Base Pretreatment: The material used is a zinc alloy / copper badge blank, with a thickness of 1.2mm and a CNC engraved pattern on the surface. Cleaning Method: Immerse the badge in an acetone solution and ultrasonically clean it for 5 minutes to remove oil stains. Rinse with deionized water and blow dry with nitrogen.

[0030] Matte black paint coating and curing: Use an automatic spray gun to evenly spray, with a wet film thickness of 30μm. Bake at 160℃ for 8 minutes.

[0031] Cat's eye glue and UV resin mixture filling: 2g cat's eye powder glue, 40ml high-transmittance UV resin, stir in a blender for 10 minutes to reduce residual bubbles. Use a dispensing machine to fill the glue layer to a thickness of 0.5mm. After filling, let it stand for 2 minutes to defoam.

[0032] Magnetically controlled cat's-eye texture formation: A permanent magnet array template with a magnetic field strength of 1000 Gauss is used. The magnets are placed close to the base of the badge, with the spacing between them controlled to 1mm. The effect is applied for 30 seconds to create a parallel stripe light effect. Alternatively, a gradient magnetic field template with a center strength of 1500 Gauss and an edge strength of 500 Gauss is used to achieve a radial light-varying effect.

[0033] Foam solution preparation and transfer: For every 100ml of foam solution, add 90ml of deionized water, 5ml of cocamidopropyl betaine, 3ml of glycerin, 1ml of sodium lauryl sulfate, and 1ml of alcohol. Mix in a blender for 5 minutes and use immediately. In practice, foam transfer can be performed manually or automatically. Manually, a silicone scraper is used to apply the foam to the target area. Automated processing involves a foam sprayer applying the foam to a specific area of ​​the badge.

[0034] UV staged curing: Using a UV wavelength of 365nm and an intensity of 80mW / cm², the resin surface in the foam contact area is cured for 1.5 minutes for pre-curing. This solidifies the resin surface, forming a support structure. A tungsten steel needle is then used to puncture the foam membrane, and nitrogen is blown away any remaining liquid film. The resin is then fully cured under the same UV conditions for 4 minutes, forming a texture with a depth of 100-150μm in the foam area.

[0035] Surface protection treatment: Use high-transmittance UV hard glue to coat the product surface and UV cure for 4 minutes. Example 3

[0036] Metal Base Pretreatment: The material used is a zinc alloy / copper badge blank, with a thickness of 1.2mm and a CNC engraved pattern on the surface. Cleaning Method: Immerse the badge in an acetone solution and ultrasonically clean it for 5 minutes to remove oil stains. Rinse with deionized water and blow dry with nitrogen.

[0037] Matte black paint coating and curing: Use an automatic spray gun to evenly spray, with a wet film thickness of 30μm. Bake at 180℃ for 10 minutes.

[0038] Cat's eye glue and UV resin mixture filling: 2g cat's eye powder glue, 40ml high-transmittance UV resin, stir in a blender for 10 minutes to reduce residual bubbles. Use a dispensing machine to fill the glue layer to a thickness of 0.5mm. After filling, let it stand for 2 minutes to defoam.

[0039] Magnetically controlled cat's-eye texture formation: A permanent magnet array template with a magnetic field strength of 1500 Gauss is used. The magnets are placed close to the base of the badge, with the spacing between them controlled to 1mm. The effect is applied for 30 seconds to create a parallel stripe light effect. Alternatively, a gradient magnetic field template with a center strength of 1500 Gauss and an edge strength of 500 Gauss is used to achieve a radial light-changing effect.

[0040] Foam solution preparation and transfer: For every 100ml of foam solution, add 90ml of deionized water, 5ml of cocamidopropyl betaine, 3ml of glycerin, 1ml of sodium lauryl sulfate, and 1ml of alcohol. Mix in a blender for 5 minutes and use immediately. In practice, foam transfer can be performed manually or automatically. Manually, a silicone scraper is used to apply the foam to the target area. Automated processing involves a foam sprayer applying the foam to a specific area of ​​the badge.

[0041] UV staged curing: Using a UV wavelength of 365nm and an intensity of 80mW / cm², the resin surface in the foam contact area is cured for 2 minutes for pre-curing, forming a support structure. A tungsten steel needle is then used to puncture the foam film, and nitrogen is blown away any remaining liquid film. The resin is then fully cured under the same UV conditions for 5 minutes, forming a texture with a depth of 100-150μm in the foam area.

[0042] Surface protection treatment: Use high-transmittance UV hard glue to coat the product surface and UV cure for 5 minutes.

[0043] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A method for decorating a metal badge by combining a magnetic cat's eye with foam molding, characterized in that: The following steps are involved: S1, matte black paint is applied to the metal substrate and cured; S2, mixing cat's eye powder glue and UV resin in proportion to form a magnetic sensitive mixed glue, and filling it into the badge pattern area; S3, uses a magnetic control device to guide the arrangement of magnetic particles to form a cat's eye texture; S4, covering the target area with foam generated by the neutral soap-based foam solution; S5, after staged UV curing, the foam is removed to form a composite decorative layer with cat's eye light change and foam texture.

2. The method for decorating a metal badge by combining a magnetic cat's eye with foam molding according to claim 1, characterized in that: The matte black baking paint has a curing temperature of 150-180° C. and a curing time of 5-10 minutes.

3. The method for decorating a metal badge by combining magnetic cat's eye and foam molding according to claim 1, characterized in that: The mixing ratio of the cat's eye powder glue and the UV resin is 2g:40ml, and the transmittance of the UV resin is ≥90%.

4. The method for decorating a metal badge by combining magnetic cat's eye and foam molding according to claim 1, characterized in that: The magnetic control device is a permanent magnet array or electromagnetic template with a preset magnetic pole distribution, and the magnetic field strength is 500-1500 Gauss.

5. The method for decorating a metal badge by combining magnetic cat's eye and foam molding according to claim 1, characterized in that: The neutral soap-based foam solution comprises the following components: 90ml of deionized water; Cocamidopropyl betaine 5ml; 3ml of glycerol; Sodium lauryl sulfate 1ml; 1ml of alcohol.

6. The method for decorating a metal badge by combining magnetic cat's eye and foam molding according to claim 1, characterized in that: The foam covering adopts a silicone transfer tool or a bubble film directional application process, and the foam layer thickness is 0.2-1mm.

7. The method for decorating a metal badge by combining magnetic cat's eye and foam molding according to claim 1, characterized in that: The staged UV curing includes: Stage 1: irradiate the foam area with 365nm wavelength UV light for 1-2 minutes for pre-curing; The second stage: After mechanical removal of foam, a second UV irradiation for 3-5 minutes completes full curing.

8. The method for decorating a metal badge by combining magnetic cat's eye and foam molding according to claim 1, characterized in that: A high-transmittance UV resin protective layer is applied on the surface of the composite decorative layer and waited for curing.

9. A metal badge prepared by the method according to any one of claims 1 to 8, characterized in that: Its surface also has: Dynamic cat's eye light bands formed by magnetic control; The random concave-convex texture produced by foam molding has a texture depth of 50-200μm.

10. The metal badge according to claim 9, characterized in that: The overlapping area of ​​the cat's eye light band and the foam texture presents a light refraction enhancement effect, and a three-dimensional light-changing effect can be visually seen.

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