A carbon fiber pattern imitating film-free label structure
By using a multi-layer composite structure and cold foil stamping process to create a carbon fiber textured label without film, the problem of insufficient consistency and durability of existing carbon fiber textures is solved, achieving a stable and low-cost carbon fiber texture effect that is suitable for a variety of application scenarios.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHENGSHEN PACKAGING PRINTING (FUJIAN) CO LTD
- Filing Date
- 2025-07-28
- Publication Date
- 2026-06-12
AI Technical Summary
Existing methods for achieving carbon fiber textures suffer from poor consistency in finished product textures, high costs, and high processing difficulty. The painting process is complex and prone to color differences and texture deformation. Furthermore, the resistance to alcohol and temperature is insufficient, limiting the application scenarios.
Employing a multi-layered composite structure and cold foil stamping process, including a transfer layer, an adhesive backing layer, an anti-repellent gold oil layer, a hot foil base layer, a carbon texture cold foil stamping film layer, an ultra-transparent gold oil layer, a transparent color layer, and an NP peelable film layer, it forms a carbon-like texture effect through a specific process, replacing traditional carbon fiber materials and spray painting processes.
It achieves consistent carbon texture effect, improves alcohol resistance, temperature resistance and adhesion, simplifies the manufacturing process and reduces costs, and is suitable for a variety of application scenarios.
Smart Images
Figure CN224354929U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of film-free labels, and in particular to a film-free label structure with a carbon fiber texture. Background Technology
[0002] The existing methods for achieving carbon fiber texture effects mainly rely on two technical approaches: one is to directly use the texture of the carbon fiber material itself, and the other is to simulate carbon fiber texture through spray painting processes.
[0003] However, both of the above methods have obvious drawbacks:
[0004] (1) When using carbon fiber material, the finished product has poor texture consistency due to batch differences in raw materials and processing technology limitations. In addition, carbon fiber material is expensive and difficult to process.
[0005] (2) When using the spray painting process, multiple base coats, spray paints and drying processes are required. The process is complex and affected by environmental temperature and humidity and the operator's skills. It is easy to cause problems such as color difference and texture deformation, resulting in low yield and high cost.
[0006] (3) The carbon fiber texture formed by traditional spray painting has poor alcohol resistance and temperature resistance. It is easy to peel off and fade in high-frequency use scenarios, which limits its application scenarios.
[0007] Therefore, there is an urgent need for a film-free label structure that can achieve stable carbon fiber texture effects, controllable costs, and excellent performance.
[0008] In view of this, the inventors specifically designed a membrane-free label structure that mimics the texture of carbon fiber, which led to this invention. Utility Model Content
[0009] This invention aims to solve the problems of inconsistent effects, high costs, and insufficient performance in existing methods of achieving carbon fiber textures. It provides a carbon fiber texture-like label-free structure that achieves realistic carbon fiber textures and stable performance through a specific multi-layer composite structure and cold ironing process.
[0010] To achieve the above objectives, the technical solution of this utility model is as follows:
[0011] A carbon fiber textured, film-free label structure includes:
[0012] Transfer layer;
[0013] An adhesive backing layer is disposed on the transfer layer and does not extend beyond the range of the transfer layer;
[0014] An anti-repellent gold oil layer is provided to completely cover the adhesive backing layer and not exceed the area of the transfer layer;
[0015] A hot stamping silver base coat is applied over the anti-repellent gold paint layer but does not extend beyond the area of the anti-repellent gold paint layer.
[0016] A carbon fiber textured cold foil layer is applied to the hot foil base coat and its extent is consistent with that of the hot foil base coat.
[0017] An ultra-transparent gold varnish layer completely covers the carbon fiber textured cold foil layer and does not exceed the area of the anti-repellent gold varnish layer.
[0018] A transparent color layer is disposed on the ultra-transparent gold varnish layer and its range is consistent with that of the ultra-transparent gold varnish layer;
[0019] The NP peelable film layer completely covers the transparent color layer and does not exceed the range of the transfer layer;
[0020] The carbon fiber textured cold-stamping film layer is used to present a carbon fiber textured pattern that changes with light.
[0021] Preferably, the extent of the adhesive backing layer is consistent with that of the anti-repellent gold oil layer.
[0022] Preferably, the anti-repellent gold oil layer is an anti-repellent gold oil-Ti layer.
[0023] Preferably, the carbon fiber textured cold-stamping film layer is a carbon fiber-like layer formed by cold-stamping process with a texture density of 80-120 lines / inch.
[0024] Preferably, the thickness of the ultra-transparent gold oil layer is 5-8 μm.
[0025] Preferably, the thickness of the NP peelable film layer is 10-15 μm.
[0026] Preferably, the transfer layer is a transfer paper with a surface that has undergone release treatment and a weight of 80-120 g / m².
[0027] The beneficial effects of this utility model are as follows:
[0028] This invention combines a carbon fiber textured cold foil layer with a multi-layer auxiliary structure to replace traditional carbon fiber materials or spray painting processes, achieving a consistent carbon fiber texture effect. The combination of cold foil process and multiple layers of gold oil and base oil improves the alcohol resistance, temperature resistance and adhesion of the film-free label, meeting the needs of diverse application scenarios. The overall structure can be decorated with a single labeling, simplifying the process and reducing costs. Attached Figure Description
[0029] The accompanying drawings, which are provided to further illustrate the present invention and constitute a part of the present invention, illustrate exemplary embodiments of the present invention and are used to explain the present invention, but do not constitute an undue limitation of the present invention.
[0030] in:
[0031] Figure 1This is a schematic diagram of the structure of the carbon fiber textured film-free label of this utility model;
[0032] Figure 2 This is one of the actual printing effect images of the carbon fiber textured film-free label of this utility model;
[0033] Figure 3 This is the second of the actual printing effect images of the carbon fiber textured film-free label of this utility model;
[0034] Figure 4 This is the third example of the actual printing effect of the carbon fiber textured film-free label of this utility model;
[0035] Figure 5 This is the fourth example of the actual printing effect of the carbon fiber textured film-free label of this utility model.
[0036] Label Explanation:
[0037] 100. Transfer layer; 200. Adhesive backing layer; 300. Anti-repellent gold oil layer; 400. Hot stamping base oil layer; 500. Carbon fiber textured cold stamping film layer; 600. Ultra-transparent gold oil layer; 700. Transparent color layer; 800. NP peelable film layer. Detailed Implementation
[0038] To make the technical problem to be solved, the technical solution, and the beneficial effects of this utility model clearer and more understandable, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this utility model and are not intended to limit this utility model.
[0039] Please see Figures 1 to 5 This is a carbon fiber textured, membrane-free label structure, which is the preferred embodiment of this utility model. Its preparation process and parameters of each layer are as follows:
[0040] 1. Selection and pretreatment of transfer layer 100
[0041] The transfer layer 100 uses release transfer paper with a weight of 100g / ㎡ (range of 80-120g / ㎡), and the surface is treated with release agent to ensure that the subsequent layer structure can be peeled off smoothly. The temperature resistance of the transfer paper is ≥150℃ to meet the requirements of the subsequent baking process.
[0042] 2. Coating of the 200mm adhesive backing layer
[0043] On the release surface of transfer layer 100, adhesive backing layer 200 is applied using screen printing. The adhesive used is acrylic pressure-sensitive adhesive, with a coating thickness of 25μm. The coating area maintains a 5mm gap from the edge of transfer layer 100 (i.e., does not exceed the range of transfer layer 100) and completely overlaps with the boundary of the subsequent anti-repellent gold varnish layer 300. After coating, it is dried in a 60℃ oven for 30 minutes to ensure complete curing of the adhesive layer.
[0044] 3. Printing of a 300-layer gold paint layer
[0045] On the surface of the adhesive backing layer 200, an anti-repellent gold paint-Ti layer (i.e., anti-repellent gold paint layer 300) is screen-printed using a 150-mesh screen. The gold paint has a solid content of 65% and a printing thickness of 6μm, completely covering the adhesive backing layer 200 without exceeding the area of the transfer layer 100. After printing, it is UV cured (energy 2000mJ / cm²) to form a base layer with anti-fouling and adhesion-promoting properties.
[0046] 4. Printing of 400mm base coat for hot stamping.
[0047] On the surface of the anti-repellent gold paint layer 300, a hot stamping base coat is printed using a 200-mesh screen. The printing area is 3mm smaller than the anti-repellent gold paint layer 300 (i.e., not exceeding the area of the anti-repellent gold paint layer 300), with a thickness of 4μm. A polyurethane base coat is used. After printing, it is baked at 80℃ for 20 minutes to ensure adhesion to the anti-repellent gold paint layer 300 ≥ 5N / cm (refer to the 5B cross-cut adhesion test standard).
[0048] 5. Pressing of carbon fiber textured cold-stamping film layer 500
[0049] A carbon fiber textured cold foil layer 500 is pressed onto the surface of the silver foil base coat 400 using a cold foil stamping process. The cold foil uses a PET base film (12μm thick), and the texture is pressed using a laser-engraved dies. The texture density is 100 lines / inch (within the range of 80-120 lines / inch), specifically a 30° diagonally interlaced texture to simulate the three-dimensional effect of carbon fiber. The pressing pressure is 4 bar, the temperature is 60℃, and the speed is 20m / min to ensure clear texture and complete adhesion to the silver foil base coat 400 (within the same range as the silver foil base coat 400). After pressing, the PET base film is peeled off, leaving only the cold foil textured layer.
[0050] 6. Coating with an ultra-transparent gold oil layer of 600.
[0051] On the surface of the carbon fiber textured cold foil layer 500, an ultra-transparent gold oil is applied using a doctor blade coating process. The gold oil is a non-yellowing polyurethane system with a thickness of 6μm (within the range of 5-8μm). The coating area completely covers the carbon fiber textured cold foil layer 500 and does not exceed the boundary of the anti-repellent gold oil layer 300. After coating, it is baked in a 70℃ oven for 40 minutes to form a transparent protective coating with a gloss level ≥90° (60° angle test).
[0052] 7. Printing of transparent color layer 700
[0053] A transparent color layer 700 is printed on the surface of the ultra-transparent gold varnish layer 600 using a 180-mesh screen. A gray dye is selected for the transparent color (the hue can be adjusted as needed), with a printing thickness of 5μm, covering the same area as the ultra-transparent gold varnish layer 600. After printing, it is UV cured (energy 1800mJ / cm²) to ensure uniform color and no bubbles.
[0054] 8. Composite of NP peelable film layer 800
[0055] On the surface of the transparent color layer 700, an NP peelable film layer 800 is bonded using a hot-pressing lamination process. The NP film thickness is 12μm (within the 10-15μm range), the lamination temperature is 90℃, the pressure is 3bar, and the lamination area completely covers the transparent color layer 700 and is aligned with the edge of the transfer layer 100 (not exceeding the range of the transfer layer 100). After lamination, it is naturally cooled to room temperature to form the final label-free structure.
[0056] 9. The preparation process is as follows:
[0057] Step 1: Coat the backing layer 200 on the transfer layer 100, dry it, and then print the anti-repellent gold oil layer 300. The UV curing energy is 2000mJ / cm².
[0058] Step 2: Print hot stamping base coat 400 on the anti-repellent gold paint layer 300, and let it air dry for 30 minutes;
[0059] Step 3: Press the carbon fiber texture onto the hot stamping base coat 400 using a cold stamping machine to form the carbon fiber texture cold stamping film layer 500.
[0060] Step 4: Apply an ultra-transparent gold varnish layer 600 and then print a transparent color layer 700 in sequence. Each layer is cured with ultraviolet light.
[0061] Step 5: Finally, composite the NP peelable film layer 800 to complete the preparation of the film-free label.
[0062] 10. Performance Testing and Verification
[0063] The membrane-free label prepared in this embodiment was verified by the following tests, and the results all met the requirements:
[0064] Alcohol resistance test: After wiping with cotton soaked in 95% alcohol 50 times, the gloss level decreased to 82° (initially 90°), which is higher than the acceptable standard of 80°;
[0065] Cross-cut test: After marking the grid, the cross-cut is removed with 3M #600 tape. There is no peeling between the layers, which meets the 5B standard.
[0066] Temperature resistance test: Baking at 130℃ for 20 minutes × 3 cycles, no yellowing or cracking;
[0067] Thermal cycling test: 10 cycles of -20℃×2hr and 80℃×2hr, no abnormalities were observed in appearance.
[0068] Combination Figure 2-5 The carbon fiber textured label prepared by the above process can be directly applied to the surface of metal, paint and other substrates in one labeling operation. The texture presents a dynamic carbon fiber texture as the angle of light changes, and meets the functional requirements such as weather resistance and adhesion, effectively solving the defects of traditional carbon fiber texture realization methods.
[0069] The present invention has been described above with reference to the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-described manner. Any non-substantial improvements made using the inventive concept and technical solution of the present invention, or the direct application of the inventive concept and technical solution to other situations without modification, are all within the protection scope of the present invention.
Claims
1. A membrane-free label structure with a carbon fiber texture, characterized in that, include: Transfer layer (100); An adhesive backing layer (200) is disposed on the transfer layer (100) and does not extend beyond the range of the transfer layer (100); An anti-repellent gold oil layer (300) is provided that completely covers the adhesive backing layer (200) and does not exceed the area of the transfer layer (100); A hot stamping silver base coat (400) is disposed on the anti-repellent gold coat (300) and does not exceed the range of the anti-repellent gold coat (300); A carbon fiber textured cold stamping film layer (500) is disposed on the hot stamping base coat layer (400) and its range is consistent with that of the hot stamping base coat layer (400); An ultra-transparent gold oil layer (600) is provided to completely cover the carbon fiber textured cold foil layer (500) and not exceed the area of the anti-repellent gold oil layer (300); A transparent color layer (700) is disposed on the ultra-transparent gold oil layer (600) and its range is consistent with that of the ultra-transparent gold oil layer (600); The NP peelable film layer (800) completely covers the transparent color layer (700) and does not exceed the range of the transfer layer (100); The carbon fiber textured cold-stamping film layer (500) is used to present a carbon fiber textured pattern that changes with light.
2. The non-film label structure with carbon fiber texture as described in claim 1, characterized in that, The extent of the adhesive backing layer (200) is consistent with that of the anti-repellent gold oil layer (300).
3. The non-film label structure with carbon fiber texture as described in claim 1, characterized in that, The anti-repellent gold oil layer (300) is an anti-repellent gold oil-Ti layer.
4. The non-film label structure with carbon fiber texture as described in claim 1, characterized in that, The carbon fiber textured cold-stamping film layer (500) is a carbon fiber-like layer formed by cold-stamping process with a texture density of 80-120 lines / inch.
5. The non-film label structure with carbon fiber texture as described in claim 1, characterized in that, The thickness of the ultra-transparent gold oil layer (600) is 5-8 μm.
6. The non-film label structure with carbon fiber texture as described in claim 1, characterized in that, The thickness of the NP peelable film layer (800) is 10-15 μm.
7. The non-film label structure with carbon fiber texture according to claim 1, characterized in that, The transfer layer (100) is a transfer paper with a surface that has undergone release treatment and a weight of 80-120 g / m².