Tactile high-strength decorative film for automobile

Abstract

The utility model discloses a touch high-strength decorative film for an automobile, which comprises a protective layer, an ink layer and a base material layer which are sequentially laminated and connected, the protective layer is transparent and comprises an acrylic layer and a wear-resistant layer laminated on one side of the acrylic layer back to the ink layer, and the wear-resistant layer is laminated on the other side of the acrylic layer back to the ink layer. And the hardness of the wear-resistant layer is greater than that of the acrylic layer. According to the high-strength decorative film with the touch sense for the automobile, the wear-resistant layer is arranged on the side, back to the ink layer, of the acrylic layer in a stacked mode, the acrylic layer is prevented from being scratched, the overall wear-resistant performance and the structural strength of the decorative film are improved, and therefore the decorative effect of the decorative film is guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of automobile decoration film, especially to a high-strength decoration film with touch for automobile. BACKGROUND

[0002] The automobile INS film is a decorative film widely used in automobile interior decoration, which is mainly formed by a protective layer, an ink layer and a substrate layer connected in layers. The protective layer generally requires good transparency and weather resistance to ensure that the ink layer and the substrate layer inside are not damaged. The ink layer can provide the required color and pattern, including various decorative effects such as wood grain and metal imitation. The substrate layer requires good processing performance and surface gloss to provide support and strength for the entire film.

[0003] In the prior art, such as CN201911227013.1 and CN202111278017.X, two kinds of automobile decoration films are disclosed, which are mainly composed of a PMMA layer, an ink layer and an ABS layer connected in layers, and have good weather resistance, wear resistance and appearance pattern display effect. In the above-mentioned decoration film, the PMMA layer serves as a transparent protective layer, although it has certain protective performance, but PMMA is a plastic material, and its wear resistance is weak, specifically, the hardness of PMMA material is relatively low, and it is easy to be scratched, so that the outer surface of the decoration film is easy to produce scratches, affecting the appearance, and the weather resistance is poor, and it is easy to age and discolor when exposed to the outside, and the surface smoothness of the PMMA layer is high, so that the touch is single.

[0004] Therefore, it is necessary to improve the automobile decoration film in the prior art. UTILITY MODEL CONTENT

[0005] The utility model aims at overcoming the defects in the prior art, and provides a high-strength decoration film with touch for automobile.

[0006] To achieve the above technical effects, the technical scheme of the utility model is as follows: a high-strength decoration film with touch for automobile, which comprises a protective layer, an ink layer and a substrate layer connected in layers, the protective layer is transparent and comprises a PMMA layer and a wear-resistant layer laminated on the back of the PMMA layer opposite to the ink layer, and the hardness of the wear-resistant layer is greater than that of the PMMA layer.

[0007] Preferably, in order to ensure the wear resistance of the wear-resistant layer, the wear-resistant layer is a UV cured coating.

[0008] Preferably, in order to avoid damage of the wear-resistant layer, the thickness of the UV cured coating is 20-50um.

[0009] Preferably, in order to further enhance the wear resistance and improve the decorative performance, the UV cured coating is provided with pearl powder.

[0010] Preferably, in order to ensure the gloss of the pearl powder, the mesh number of the pearl powder is 150-600 mesh.

[0011] Preferably, in order to ensure the overall concave-convex touch of the protective layer, the outer surface of the pearl powder protrudes from the side of the UV cured coating facing away from the acrylic layer.

[0012] Preferably, in order to ensure the transparency and structural strength of the acrylic layer, the thickness of the acrylic layer is 0.5-3 mm.

[0013] Preferably, in order to ensure the forming quality of the UV cured coating, the side of the UV cured coating facing away from the acrylic layer is integrally connected and uniformly distributed with protrusions.

[0014] Preferably, in order to ensure the good touch of the UV cured coating, the protrusions are hemispherical.

[0015] Preferably, in order to balance the touch and display effect of the decorative film, the outer diameter of the protrusions is less than or equal to the side of the UV cured coating facing away from the acrylic layer, and the distribution interval of the protrusions is 6-10 times the diameter of the protrusions.

[0016] In summary, the high-strength decorative film with touch for automobiles of the present application compared with the prior art, by laminating the wear-resistant layer on the side of the acrylic layer facing away from the ink layer, avoiding the acrylic layer from being scratched, improving the overall wear resistance and structural strength of the decorative film, thereby ensuring the decorative effect of the decorative film. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 is a structural schematic view of the first embodiment;

[0018] Figure 2 is a structural schematic view of the second embodiment;

[0019] Figure 3 is a structural schematic view of the third embodiment;

[0020] Figure 4 is a front view of Figure 3 ;

[0021] In the drawings: 1, protective layer; 11, acrylic layer; 12, wear-resistant layer; 121, pearl powder; 122, protrusion; 2, ink layer; 3, base material layer. DETAILED DESCRIPTION

[0022] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings and examples. The following examples are only used to more clearly illustrate the technical solution of this utility model and should not be construed as limiting the scope of protection of this utility model.

[0023] First Embodiment

[0024] like Figure 1 As shown, a high-strength decorative film with a tactile feel for automobiles according to the first embodiment of the present invention includes a protective layer 1, an ink layer 2 and a substrate layer 3 stacked in sequence. The protective layer 1 is transparent and includes an acrylic layer 11 and a wear-resistant layer 12 stacked on the side of the acrylic layer 11 facing away from the ink layer 2. The hardness of the wear-resistant layer 12 is greater than the hardness of the acrylic layer 11.

[0025] In this embodiment, the substrate layer 3 is an ABS layer, whose main raw material is acrylonitrile-butadiene-styrene. It has good processing performance and surface gloss. As the bottom layer and support layer of the automotive decorative film, its thickness range is preferably between 0.5-2mm. The substrate layer 3 within this thickness range can provide sufficient strength and rigidity to support the entire film structure and meet the requirements of automotive interior decoration for durability and safety.

[0026] The ink layer 2 can provide the required colors and patterns, and can display various decorative effects such as wood grain and metal according to different needs, affecting the appearance of the final product. The thickness of the ink layer 2 is preferably 10-50um. Within this thickness range, the ink layer 2 can provide clear colors and patterns, while avoiding excessive thickness that would lead to increased costs and decreased performance. In this way, the color effect is guaranteed while taking into account production costs.

[0027] The protective layer 1 is a transparent protective layer. On the one hand, it can protect the inner ink layer 2 and substrate layer 3 from damage. On the other hand, its transparency facilitates the display of the pattern on the ink layer 2, so as to ensure the overall decorative effect of the decorative film.

[0028] Unlike existing technologies, the protective layer 1 in this embodiment is a double-layer composite structure consisting of an acrylic layer 11 and a wear-resistant layer 12. On the one hand, this increases the structural strength of the protective layer 1. On the other hand, the hardness of the wear-resistant layer 12 is greater than that of the acrylic layer 11, which reduces the possibility of scratches on the side of the wear-resistant layer 12 that is opposite to the acrylic layer 11, i.e., the outermost surface of the composite film. This enhances the wear resistance and structural strength of the composite film in this embodiment, ensures the aesthetics of the decorative film during use, and thus improves the decorative effect.

[0029] A further improvement is that the wear-resistant layer 12 is a UV-curable coating. The UV-curable coating uses ultraviolet light curing technology, and after curing, it can form a protective film with high hardness, resisting scratches in daily life. Compared with the acrylic layer 11, the UV-curable coating has better wear resistance and can maintain its surface gloss for a long time after curing, making it less prone to scratches, thereby ensuring the product quality of the final decorative film.

[0030] A further improvement is that the thickness of the UV-cured coating is 20-50 μm. The thickness of the UV-cured coating has a significant impact on abrasion resistance and curing effect. An excessively thick UV-cured coating may lead to incomplete curing or cracking during the curing process and use, affecting the quality of the UV-cured coating, impacting abrasion resistance, and increasing production costs. Therefore, it is necessary to reduce the thickness of the UV-cured coating to ensure internal and external dryness. However, if the UV-cured coating is too thin, a rapid decline in abrasion resistance will occur. Therefore, to ensure good adhesion and durability of the abrasion-resistant layer 12, while improving overall weather resistance, the thickness of the UV-cured coating needs to be at least 20 μm. In summary, the thickness of the UV-cured coating is 20-50 μm.

[0031] A further improvement is that the thickness of the acrylic layer 11 is 0.5-3mm. This thickness ensures that the acrylic layer 11 maintains both good transparency and structural strength, thus meeting the aesthetic and durability requirements of automotive interior decoration.

[0032] Second Embodiment

[0033] like Figure 2 As shown, the second embodiment of this utility model provides a high-strength decorative film with a tactile feel for automobiles, which is based on the first embodiment, except that pearlescent powder 121 is provided on the UV-cured coating.

[0034] Compared to the first embodiment, by setting pearlescent powder 121 on the UV-cured coating, on the one hand, the thickness and hardness of the UV-cured coating can be further increased, improving the overall wear resistance of the protective layer 1. On the other hand, pearlescent powder 121 can have a unique flake structure, forming tiny uneven surfaces in the UV-cured coating, thereby enhancing the tactile feel. In addition, pearlescent powder 121 also has a pearly luster, which can bring an attractive visual effect to the UV-cured coating.

[0035] The doping ratio of pearlescent powder 121 affects the color effect and gloss of the UV-cured coating. Too much pearlescent powder 121 will cause the UV-cured coating to be too dark or unnatural in color, and will also affect the transparency and curing speed of the UV-cured coating. Therefore, the doping ratio of pearlescent powder 121 is preferably controlled below 5% of the total weight of the UV-cured coating to avoid cracks in the coating during curing.

[0036] A further improvement is that the mesh size of pearlescent powder 121 is 150-600 mesh. The particle size of pearlescent powder 121 affects the gloss and feel of the UV-cured coating. In actual production, pearlescent powder 121 with a smaller particle size can form a more delicate gloss effect, while pearlescent powder 121 with a larger particle size is more conducive to forming a more obvious texture on the surface of the UV-cured coating to enhance the feel. Taking all these factors into consideration, the mesh size of pearlescent powder 121 is controlled between 150-600 mesh.

[0037] A further improvement is that the outer surface of the pearlescent powder 121 protrudes from the side of the UV-cured coating that faces away from the acrylic layer 11.

[0038] In actual production, after the UV-curable coating is applied to the acrylic layer 11 and before it is cured, a portion of pearlescent powder 121 is sprayed onto the UV-curable coating so that the pearlescent powder 121 can adhere to the material of the UV-curable coating. After curing, the pearlescent powder 121 is fixed to the surface of the UV-curable coating and partially protrudes from the side of the UV-curable coating that is away from the acrylic layer 11, further enhancing the wear resistance and tactile feel. In addition, by using this method, the spraying position and amount of pearlescent powder 121 can be adjusted according to the image display of the ink layer 2 to ensure good wear resistance and decorative performance.

[0039] Third Embodiment

[0040] like Figure 3 and Figure 4 As shown, the third embodiment of this utility model provides a high-strength decorative film for automobiles with a tactile feel, which is based on the second embodiment, except that the UV-cured coating is integrally connected to the side of the acrylic layer 11 that is not facing the acrylic layer 11 and has protrusions 122 evenly distributed.

[0041] The raised protrusions 122, which are integrally connected and evenly distributed on the side of the UV-cured coating opposite to the acrylic layer 11, can effectively prevent the raised protrusions 122 from detaching from the surface of the UV-cured coating, compared to the second embodiment, while ensuring a good tactile feel and decorative effect, thus ensuring the product quality of the final decorative film.

[0042] A further improvement is that the protrusion 122 is hemispherical, the outer diameter of the protrusion 122 is equal to the side of the UV-cured coating facing away from the acrylic layer 11, and the distribution interval of the protrusion 122 is 5 times the diameter of the protrusion 122.

[0043] With the above structure, the protrusions 122 are hemispherical, facilitating their formation on the UV-curable coating. By reducing the outer diameter of the protrusions 122 to below the thickness of the UV-curable coating, excessive obstruction of the pattern in the ink layer 2 can be avoided, ensuring a good display effect of the decorative film, enhancing wear resistance and tactile feel. The protrusions 122 have a certain spacing; if the spacing is too large, the enhancement effect on the wear resistance and tactile feel of the UV-curable coating will be weak, while if the spacing is too small, the distribution density will be too high, affecting aesthetics. Therefore, considering all factors, the spacing between the protrusions 122 is controlled at 5 times. Of course, as a substitute for a similar effect, the outer diameter of the protrusions 122 can also be smaller than the thickness of the UV-curable coating, and the distribution spacing of the protrusions 122 can also be controlled within other values ​​within the range of 6-10 times the diameter of the protrusions 122.

[0044] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A high-strength decorative film with a tactile feel for automobiles, characterized in that: It includes a protective layer (1), an ink layer (2) and a substrate layer (3) that are stacked in sequence. The protective layer (1) is transparent and includes an acrylic layer (11) and a wear-resistant layer (12) stacked on the side of the acrylic layer (11) facing away from the ink layer (2). The hardness of the wear-resistant layer (12) is greater than that of the acrylic layer (11). The wear-resistant layer (12) is a UV-cured coating; Pearl powder (121) is provided on the UV-curable coating, and the outer surface of the pearl powder (121) protrudes from the side of the UV-curable coating that is away from the acrylic layer (11). Alternatively, the UV-cured coating may be integrally connected to the side of the acrylic layer (11) that is opposite to the surface of the acrylic layer (11) and have protrusions (122) evenly distributed on it.

2. The tactile high-strength decorative film for automobiles according to claim 1, characterized in that: The thickness of the UV-cured coating is 20-50 μm.

3. The tactile high-strength decorative film for automobiles according to claim 1, characterized in that: The pearlescent powder (121) has a mesh size of 150-600 mesh.

4. The tactile high-strength decorative film for automobiles according to claim 1, characterized in that: The thickness of the acrylic layer (11) is 0.5-3 mm.

5. The tactile high-strength decorative film for automobiles according to claim 1, characterized in that: The protrusion (122) is hemispherical.

6. The tactile high-strength decorative film for automobiles according to claim 5, characterized in that: The outer diameter of the protrusion (122) is less than or equal to the side of the UV-cured coating facing away from the acrylic layer (11), and the distribution interval of the protrusion (122) is 6-10 times the diameter of the protrusion (122).

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