A high-transparency display clear texture decorative film

Abstract

The utility model relates to a kind of high-transparency display clear texture decorative film, and the decorative film includes base film, UV texture layer, oxide plating layer, ink layer and adhesive layer, the surface of the base film is provided with UV texture layer, another surface is sequentially laminated with oxide plating layer, ink layer and adhesive layer, and the ink layer is provided with the window display area of openwork. Compared with prior art, the utility model realizes high-transparency quality effect, and highlights the definition of window display area.

Description

Technical Field

[0001] This utility model belongs to the field of decorative film technology and relates to a high-transparency, clearly visible textured decorative film. Background Technology

[0002] Plastic surface decorative parts involve various processes such as spraying, vacuum electroplating, heat transfer printing, and in-mold injection molding. Advances in materials and processes have greatly promoted the application of surface decoration. Among these, in-mold injection molding, with its novel patterns, safety and environmental friendliness, cost advantages, and ability to enhance product quality, is highly favored by customers in the home appliance and 3C industries. The combination of the application process and the textured pattern is a key focus in the early design stages of product development; it needs to be eye-catching and distinctive, such as a high-gloss metallic texture with brushed or special patterns.

[0003] Patent CN204183977U discloses a metallic-look decorative film that achieves a high-gloss metallic effect by electroplating a metallic layer onto a PET brushed base film. However, the electroplating process is costly, and the metallic layer is generally colored, affecting the overall visual effect. Patent CN219650928U proposes a metallic-textured decorative film achieved through UV embossing texture combined with ink and vapor-deposited metallic coating. Similarly, vapor deposition is costly, and the colored coating affects the visual effect. Patent CN220201834U discloses a high-gloss, metallic-textured surface decorative film that achieves a metallic effect through a combination of UV texture and an aluminum plating layer. However, the aluminum layer has good opacity, and when combined with the UV texture layer, the overall film is opaque, failing to meet the requirement for clear window display in decorative components. Utility Model Content

[0004] The purpose of this invention is to overcome at least one of the defects of the prior art and provide a highly transparent and clearly visible textured decorative film. This invention achieves a highly transparent textured effect and highlights the clarity of the window display area.

[0005] The objective of this utility model can be achieved through the following technical solutions:

[0006] One of the technical solutions of this utility model is to provide a high-transparency, clear-displaying textured decorative film. The decorative film includes a base film, a UV texture layer, an oxide coating layer, an ink layer, and an adhesive layer. One surface of the base film is provided with a UV texture layer, and the other surface is sequentially stacked with an oxide coating layer, an ink layer, and an adhesive layer. The ink layer is provided with a hollowed-out window display area.

[0007] The base film is used as the substrate for decorative films.

[0008] Furthermore, the thickness of the base film is 100~188 μm.

[0009] As a preferred technical solution, the material of the base film is selected from polyethylene terephthalate (PET), polycarbonate (PC) or polymethyl methacrylate (PMMA).

[0010] Furthermore, the decorative film also includes a bonding layer, which is provided between the base film and the UV texture layer, and the bonding layer improves the interlayer adhesion between the UV texture layer and the base film.

[0011] Furthermore, the thickness of the connecting layer is 3~6 μm.

[0012] As a preferred technical solution, the pre-coating agent forming the bonding layer is selected from acrylic resin or polyurethane-modified acrylic resin.

[0013] Furthermore, the thickness of the UV texture layer is 3~10 μm.

[0014] Furthermore, the UV material forming the UV texture layer is selected from polyurethane-modified acrylic resin or epoxy-modified acrylic resin.

[0015] The oxide coating is prepared by magnetron sputtering to achieve a high-transparency texture. The combination of the oxide coating and the UV texture layer gives the film an overall effect of enhancing transparency and brightness. The UV texture layer and the oxide coating are placed on opposite sides to avoid poor interlayer adhesion when they are in direct contact.

[0016] Furthermore, the thickness of the oxide coating is 50~200 Å. By controlling the thickness of the coating, the transparency of the coating is ensured, thus guaranteeing the high transparency of the oxide coating.

[0017] Furthermore, the metal oxide forming the oxide coating is selected from niobium oxide, titanium oxide, zinc oxide, zirconium oxide, or indium oxide.

[0018] The ink layer enhances the clarity of the display area.

[0019] Furthermore, the thickness of the ink layer is 5~10 μm.

[0020] The adhesive layer serves to bond with the plastic, allowing the decorative film to combine with the plastic particles to form an integral decorative part during the injection molding process.

[0021] Furthermore, the thickness of the adhesive layer is 5~10 μm.

[0022] As a preferred technical solution, the adhesive forming the adhesive layer is selected from acrylonitrile-butadiene-styrene copolymer (ABS) thermosetting adhesive or polycarbonate thermosetting adhesive.

[0023] One of the technical solutions of this utility model is to provide a method for preparing the high-transparency, clearly visible textured decorative film, the method comprising the following steps:

[0024] S1. A pre-coating agent is applied to one surface of the base film to form a bonding layer;

[0025] S2. A UV texture layer is formed on the bonding layer by UV molding process. Specifically, UV material is coated on the bonding layer, UV material is molded using a texture work plate, and the material is cured quickly under ultraviolet light.

[0026] S3. Magnetron sputtering of a metal oxide film is performed on the other surface of the base film to form an oxide coating;

[0027] S4. Use a screen printing stencil to screen print ink onto the oxide coating to form an ink layer;

[0028] S5. Apply adhesive to the ink layer, cure and shape to form an adhesive layer, and obtain a highly transparent and clearly visible textured decorative film, which can be widely used in display panels for home appliances and 3C products that require high surface decoration and display effects.

[0029] As a preferred technical solution, the curing temperature in step S1 is 40~60 ℃ and the time is 20~40 h.

[0030] As a preferred technical solution, in step S2, the texture workpiece has an optical dynamic texture effect, and a dynamic optical texture layer with a micro-nano trench structure is prepared.

[0031] The oven temperature is 80~90 ℃, and the molding speed is 5~15 m / min.

[0032] The UV light intensity during curing is 350~450 mJ / cm. 2 This ensures the stability of the UV texture layer.

[0033] As a preferred technical solution, in step S3, the accelerating voltage of magnetron sputtering is 300~800 V, the magnetic field strength is 50~300 G, the gas pressure is 1~10 Pa, the current density is 4~60 mA / cm, and the power density is 1~40 W / cm.

[0034] As a preferred technical solution, in step S4, a positioning cutout is made on the screen printing plate. The position of the positioning cutout is the window display area. By subsequently printing the back cover under the film and superimposing the colored ink part around the window display area, the window display area is made prominent to achieve a high-definition display effect.

[0035] The screen mesh count is 200-300 mesh, and the ink squeegee angle is 45-60°.

[0036] As a preferred technical solution, the temperature for maturation in step S5 is 80~90 ℃ and the time is 1~3 h.

[0037] Compared with the prior art, the present invention has the following beneficial effects:

[0038] (1) In this utility model, the combination of magnetron sputtering coating and UV transfer texture plays a brightening role. The oxide coating is colorless and will not affect the appearance color of the product as a transparent brightening layer. The combination with dynamic UV texture makes the overall decoration of the film more beautiful and prominent.

[0039] (2) In this utility model, the coating thickness is controlled to achieve a high transparency state, so that the window area of ​​the decorative film can be clearly displayed;

[0040] (3) In this utility model, the UV texture layer and the oxide coating are respectively disposed on both sides of the base film, so that the UV texture layer and the coating do not directly contact each other, thus solving the problem of poor adhesion between the two layers. Attached Figure Description

[0041] Figure 1 This is a schematic diagram of the structure of the high-transparency, clearly visible textured decorative film in an embodiment of this utility model.

[0042] Explanation of markings in the diagram:

[0043] 1—Base film, 2—Connecting layer, 3—UV texture layer, 4—Oxide coating, 5—Ink layer, 6—Adhesive layer. Detailed Implementation

[0044] The present invention will now be described in detail with reference to specific embodiments. These embodiments are based on the technical solution of the present invention and provide detailed implementation methods and specific operating procedures. However, the scope of protection of the present invention is not limited to the following embodiments.

[0045] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. In addition, the terms "first," "second," "third," etc., used to describe a common object only indicate different instances of the same object, and are not intended to imply that the objects described in this way must be in a given order, whether temporally, spatially, sequentially, or in any other way.

[0046] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0047] Unless otherwise specified, the equipment used in the following embodiments is conventional equipment in the art; unless otherwise specified, the reagents used are commercially available products or prepared by conventional methods in the art. In the following embodiments, unless otherwise described in detail, conventional experimental methods in the art can be used.

[0048] Example 1:

[0049] A high-transparency decorative film that displays clearly defined textures, such as... Figure 1 As shown, the decorative film includes a base film 1, a UV texture layer 3, an oxide coating layer 4, an ink layer 5, and an adhesive layer 6. The front side of the base film 1 is provided with a UV texture layer 3, and the back side is sequentially stacked with an oxide coating layer 4, an ink layer 5, and an adhesive layer 6. The ink layer 5 is provided with a hollowed-out window display area.

[0050] Base film 1 is used as the substrate for decorative films;

[0051] The thickness of base film 1 is 125 μm;

[0052] The decorative film also includes a connecting layer 2, which is provided between the base film 1 and the UV texture layer 3. The connecting layer 2 improves the interlayer adhesion between the UV texture layer 3 and the base film 1.

[0053] The thickness of the connecting layer 2 is 4 μm;

[0054] The thickness of UV texture layer 3 is 7 μm;

[0055] The oxide coating 4 is prepared by magnetron sputtering to achieve a high transparency and gloss. The combination of the oxide coating 4 and the UV texture layer 3 gives the film an overall effect of enhanced transparency and brightness. The UV texture layer 3 and the oxide coating 4 are placed on opposite sides to avoid poor interlayer adhesion when they are in direct contact.

[0056] The thickness of oxide coating 4 is 100 Å. By controlling the thickness of the coating, the transparency of the coating is ensured, thus ensuring the high transparency of oxide coating 4.

[0057] Ink layer 5 enhances the clarity of the display area;

[0058] The thickness of ink layer 5 is 8 μm;

[0059] The adhesive layer 6 serves to bond with the plastic, allowing the decorative film to combine with the plastic particles to form an integral decorative part during the injection molding process;

[0060] The thickness of adhesive layer 6 is 6 μm.

[0061] Example 2:

[0062] A highly transparent decorative film with a clear texture is basically the same as in Example 1, wherein the material of the base film 1 is polyethylene terephthalate (PET).

[0063] The pre-coating agent forming the bonding layer 2 is a polyurethane-modified acrylic resin;

[0064] The UV material used to form UV texture layer 3 is polyurethane-modified acrylic resin;

[0065] Zirconia is selected as the metal oxide for forming oxide coating 4.

[0066] The adhesive used to form adhesive layer 6 is an acrylonitrile-butadiene-styrene copolymer (ABS) thermosetting adhesive.

[0067] The specific steps for preparing the above-mentioned high-transparency, clearly visible textured decorative film are as follows:

[0068] S1. Apply a pre-coating agent to the front side of the base film 1 and cure it in a baking oven at 50 ℃ for 24 h to form the bonding layer 2;

[0069] S2. A UV texture layer 3 is formed on the bonding layer 2 using a UV molding process. Specifically, a UV material is coated on the bonding layer 2, and the UV material is molded using a texture template. The texture template has an optical dynamic texture effect, thus preparing a dynamic optical texture layer with micro-nano groove structures. The oven temperature is 80 ℃, the molding speed is 10 m / min, and the temperature is 400 mJ / cm². 2 Rapid curing under ultraviolet light;

[0070] S3. On the back of the base film 1, a metal oxide coating 4 is formed by magnetron sputtering of metal oxide. The accelerating voltage of magnetron sputtering is 400 V, the magnetic field strength is 100 G, the gas pressure is 5 Pa, the current density is 30 mA / cm, and the power density is 20 W / cm.

[0071] S4. On the oxide coating layer 4, screen printing ink is used to form ink layer 5. Positioning and hollowing treatment is performed on the screen printing plate. The screen mesh count is 250 mesh and the ink squeegee angle is 45°. The position of the positioning and hollowing is the window display area. By printing the back cover under the film and superimposing the colored ink part around the window display area, the window display area is made to stand out and achieve a high-definition display effect.

[0072] S5. Apply adhesive to ink layer 5 and cure in an 85 ℃ oven for 2 hours to form adhesive layer 6, obtaining a highly transparent and clearly visible textured decorative film, which can be widely used in display panels for home appliances and 3C products that require high surface decoration and display effects.

[0073] The above description of the embodiments is provided to enable those skilled in the art to understand and use the utility model. It will be apparent to those skilled in the art that various modifications can be easily made to these embodiments, and the general principles described herein can be applied to other embodiments without inventive effort. Therefore, the present utility model is not limited to the above embodiments, and any improvements and modifications made by those skilled in the art based on the disclosure of the present utility model without departing from its scope should be within the protection scope of the present utility model.

Claims

1. A high-transparency, clearly visible textured decorative film, characterized in that, The decorative film includes a base film (1), a UV texture layer (3), an oxide coating layer (4), an ink layer (5), and an adhesive layer (6). One surface of the base film (1) is provided with a UV texture layer (3), and the other surface is sequentially stacked with an oxide coating layer (4), an ink layer (5), and an adhesive layer (6). The ink layer (5) has a hollowed-out window display area.

2. The high-transparency, clearly visible textured decorative film according to claim 1, characterized in that, The thickness of the base film (1) is 100~188 μm.

3. The high-transparency, clearly visible textured decorative film according to claim 1, characterized in that, The decorative film also includes a connecting layer (2), and a connecting layer (2) is provided between the base film (1) and the UV texture layer (3).

4. The high-transparency, clearly visible textured decorative film according to claim 3, characterized in that, The thickness of the connecting layer (2) is 3~6 μm.

5. A high-transparency, clearly visible textured decorative film according to claim 1, characterized in that, The thickness of the UV texture layer (3) is 3~10 μm.

6. A high-transparency, clearly visible textured decorative film according to claim 1, characterized in that, The UV material forming the UV texture layer (3) is selected from polyurethane modified acrylic resin or epoxy modified acrylic resin.

7. A high-transparency, clearly visible textured decorative film according to claim 1, characterized in that, The thickness of the oxide coating (4) is 50~200 Å.

8. A high-transparency, clearly visible textured decorative film according to claim 1, characterized in that, The metal oxide that forms the oxide coating (4) is selected from niobium oxide, titanium oxide, zinc oxide, zirconium oxide or indium oxide.

9. A high-transparency, clearly visible textured decorative film according to claim 1, characterized in that, The thickness of the ink layer (5) is 5~10 μm.

10. A high-transparency, clearly visible textured decorative film according to claim 1, characterized in that, The thickness of the adhesive layer (6) is 5~10 μm.

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