Decorative film, decorative assembly and automobile decorative part

Abstract

A decorative film, which is light-transmissive and comprises a base layer, a micro-nano structure layer, a plating layer and at least one ink layer, wherein the micro-nano structure layer is arranged on the base layer, the plating layer is arranged on the micro-nano structure layer, the ink layer is arranged on the plating layer, and the micro-nano structure layer is formed by stacking and arranging a plurality of spherical structures with different diameters and quantities. The decorative film of the present invention can compensate for color deviation and improve the visual experience. The present invention further relates to a decorative assembly and an automobile decorative part.

Description

Decorative film piece, decorative assembly and automobile decorative part TECHNICAL FIELD

[0001] The present application relates to the technical field of vehicle interior parts, in particular to a decorative film piece, a decorative assembly and an automobile decorative part. BACKGROUND

[0002] The decorative film is a decorative light effect film that presents color effects of red, orange, yellow, green, cyan, blue and purple in the visible light 380-780 nm band by stacking high and low refractive indexes on different substrates. At present, the decorative light effect film is widely used in mobile phone decoration, automobile decoration, watch and door lock fields, and has extremely broad market space. For automobile interior parts, generally, an inner inlay injection molding (IML) process is used to manufacture, and a printing process is used to manufacture various patterns on a PC substrate. TECHNICAL PROBLEM

[0003] The decorative part product formed by the inner inlay injection molding has a strong plastic feeling, which is not good for human experience. Moreover, the existing decorative part product cannot compensate for color deviation. When the backlight behind the decorative part product is turned on, the color of the light passing through the decorative part product will change, for example, it will be yellow. TECHNICAL SOLUTION

[0004] Therefore, the present application provides a decorative film piece, which can compensate for color deviation and improve visual experience.

[0005] A decorative film piece, the decorative film piece can transmit light, and the decorative film piece comprises a base layer, a micro-nano structure layer, a plating layer and at least one ink layer, the micro-nano structure layer is arranged on the base layer, the plating layer is arranged on the micro-nano structure layer, and the ink layer is arranged on the plating layer, the micro-nano structure layer is formed by stacking and arranging a plurality of spherical structures with different diameters and different quantities.

[0006] In the embodiment of the present application, each spherical surface is formed by concave in the direction close to the base layer or convex in the direction away from the base layer.

[0007] In the embodiment of the present application, the depth of the spherical surface is 1-3 μm.

[0008] In the embodiment of the present application, the micro-nano structure layer comprises a plurality of spherical surfaces with different diameters, and the diameter of the spherical surface ranges from 30 μm to 80 μm.

[0009] In the embodiment of the present application, the plurality of spherical surfaces comprises a plurality of first spherical surfaces with a diameter A and a plurality of second spherical surfaces with a diameter B, the diameter of each first spherical surface is greater than the diameter of each second spherical surface, and the number of each first spherical surface is less than or equal to the number of each second spherical surface.

[0010] In an embodiment of the present application, the plurality of spherical surfaces further comprises a plurality of third spherical surfaces with a diameter of C, each of the second spherical surfaces has a diameter larger than each of the third spherical surfaces, and the number of the second spherical surfaces is less than the number of the third spherical surfaces.

[0011] In an embodiment of the present application, the plurality of spherical surfaces further comprises a plurality of fourth spherical surfaces with a diameter of D, each of the third spherical surfaces has a diameter larger than each of the fourth spherical surfaces, and the number of the third spherical surfaces is less than or equal to the number of the fourth spherical surfaces.

[0012] In an embodiment of the present application, the plurality of spherical surfaces further comprises a plurality of fifth spherical surfaces with a diameter of E, each of the fourth spherical surfaces has a diameter larger than each of the fifth spherical surfaces, and the number of the fourth spherical surfaces is less than or equal to the number of the fifth spherical surfaces.

[0013] In an embodiment of the present application, the plurality of spherical surfaces further comprises a plurality of sixth spherical surfaces with a diameter of F, each of the fifth spherical surfaces has a diameter larger than each of the sixth spherical surfaces, and the number of the fifth spherical surfaces is less than the number of the sixth spherical surfaces.

[0014] In an embodiment of the present application, the number ratio of the first spherical surfaces, the second spherical surfaces, the third spherical surfaces, the fourth spherical surfaces, the fifth spherical surfaces, and the sixth spherical surfaces is 1:1:1.5:1.5:2.5:4.

[0015] In an embodiment of the present application, the color of the ink layer is semi-transparent.

[0016] In an embodiment of the present application, the ink layer is used to compensate color cast.

[0017] In an embodiment of the present application, the thickness of the ink layer is 0.5-4 μm.

[0018] In an embodiment of the present application, the decorative film comprises at least two ink layers stacked together, and the color of each of the ink layers gradually becomes darker or lighter away from the plating layer.

[0019] In an embodiment of the present application, the decorative film further comprises a protective layer covering the ink layer.

[0020] In an embodiment of the present application, the material of the protective layer is transparent ink.

[0021] In an embodiment of the present application, the thickness of the protective layer is 7-9 μm.

[0022] The present application relates to a decorative assembly comprising the above decorative film.

[0023] The application relates to a car decoration part, comprising the decoration film and a light source. Advantages

[0024] The decoration film has an ink layer capable of compensating color deviation; when backlight is transmitted through the decoration film from one side of the ink layer, the ink layer can compensate color deviation, and pull the color deviation value of the light transmitted through the decoration film to the center value of the color deviation value of the backlight source, so that the eye can see a normal color of the backlight source on the side close to the base layer, and the visual experience is improved; when the backlight source does not emit light, the texture of the micro-nano structure layer can be effectively enhanced under the reflection-increasing effect of the plating layer, and the plastic feeling of an in-mold labeling (IML) product is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0025] Fig. 1 is a schematic diagram of a cross-sectional structure of a decoration film according to an embodiment of the application.

[0026] Fig. 2 is a schematic diagram of a partial cross-sectional structure of a micro-nano structure layer according to the application.

[0027] Fig. 3 is a scanning electron microscope image of the micro-nano structure layer according to the application.

[0028] Fig. 4 is a schematic diagram of a cross-sectional structure of a decoration film according to another embodiment of the application.

[0029] Fig. 5 is a schematic diagram of a cross-sectional structure of a decoration assembly according to the application. Embodiments of the application

[0030] The embodiments of the application are described below by specific examples, and those skilled in the art can easily understand other advantages and effects of the application from the content disclosed in the description.

[0031] In the following description, reference is made to the accompanying drawings, which show several embodiments of the application. It should be understood that other embodiments can also be used, and mechanical components, structures, electrical and operational changes can be made without departing from the spirit and scope of the application. The following detailed description should not be considered as limiting, and the terms used herein are only used to describe specific embodiments, and are not intended to limit the application.

[0032] Although in some examples the terms first, second, etc. are used herein to describe various elements, these elements should not be limited by these terms. These terms are only used to distinguish one element from another.

[0033] Furthermore, as used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context indicates otherwise. It will be further understood that the terms "comprises", "comprising", "includes" and / or "including" when used herein, specify the presence of stated features, steps, operations, elements, components, items, and / or groups but do not preclude the presence or addition of one or more other features, steps, operations, elements, components, items, and / or groups thereof. As used herein, the terms "or" and "and / or" are to be interpreted as inclusive, i.e., as meaning one or any combination of the items. Thus, "A, B or C" or "A, B and / or C" means "any of the following: A; B; C; A and B; A and C; B and C; A, B and C". Only when a combination of elements, functions, steps or operations is inherently mutually exclusive is an exception to this definition presented.

[0034] FIG. 1 is a schematic diagram of a cross-sectional structure of a decorative film according to an embodiment of the present application. As shown in FIG. 1, the decorative film 10 according to the present application is light-transmissive, and includes a base layer 11, a micro-nano structure layer 12, a plating layer 13, and at least one ink layer 14 for compensating color cast. The micro-nano structure layer 12 is disposed on the base layer 11, the plating layer 13 is disposed on the micro-nano structure layer 12, and the ink layer 14 is disposed on the plating layer 13. The micro-nano structure layer 12 is formed by stacking and arranging a plurality of spherical surfaces 121 with different diameters and different quantities.

[0035] The decorative film 10 according to the present application has the ink layer 14 for compensating color cast. When backlight is transmitted through the decorative film 10 from one side of the ink layer 14, the ink layer 14 can compensate color cast, and pull the color cast value of the light transmitted through the decorative film 10 to the central value of the color cast value of the backlight source, so that the eye can see a normal color of the backlight source on the side close to the base layer 11, and the visual experience is improved. When the backlight source does not emit light, the texture of the micro-nano structure layer 12 can be effectively enhanced under the effect of the plating layer 13, and the plastic feeling of the in-mold decoration (IML) product can be reduced.

[0036] Optionally, the base layer 11 is made of PC material, and has a thickness of 250um to 500um, for example, 300um, 350um, 400um or 450um, but is not limited thereto. The transmittance of the base layer 11 is greater than 87%.

[0037] Optionally, FIG. 2 is a schematic diagram of a partial cross-sectional structure of the micro-nano structure layer according to the present application, and FIG. 3 is a scanning electron microscope image of the micro-nano structure layer according to the present application. As shown in FIGS. 1, 2 and 3, the plurality of spherical surfaces 121 with different diameters and different quantities according to the present application increase the reflecting surface, and the plating layer 13 disposed on the spherical surfaces 121 in a form-fitting manner can more effectively play the effect of increasing reflection. From the visual angle (looking at the decorative film 10 from the side of the base layer 11), the AG matte effect can be seen, and the direct glare can be prevented.

[0038] Optionally, the micro-nano structure layer 12 has a stretching amount greater than or equal to 170%, that is, the micro-nano structure layer 12 of the present application can reduce the rainbow effect caused by the material thickness variation under high stretching.

[0039] Optionally, the material of the micro-nano structure layer 12 is a UV glue with high stretching, and the main material is polyurethane acrylate, which has a temperature resistance of above 180°C.

[0040] Optionally, the spherical surface 121 on the micro-nano structure layer 12 is formed by transferring a special micro-nano structure shape on the UV glue by UV transfer, so as to realize the AG texture effect.

[0041] Optionally, as shown in FIGS. 2 and 3, each spherical surface 121 is formed by concave towards the base layer 11 or convex away from the base layer 11.

[0042] Optionally, the plating layer 13 is arranged on the spherical surface 121.

[0043] Optionally, as shown in FIGS. 2 and 3, the depth of the spherical surface 121 is 1 μm-3 μm, for example, 1.5 μm, 2 μm, 2.5 μm, but not limited thereto.

[0044] Optionally, as shown in FIGS. 2 and 3, the micro-nano structure layer 12 includes a plurality of spherical surfaces 121 with different diameters, and the diameter of the spherical surface 121 ranges from 30 μm to 80 μm, that is, the diameter of the largest spherical surface 121 is less than or equal to 80 μm, and the diameter of the smallest spherical surface 121 is greater than or equal to 30 μm; the spherical surface 121 on the micro-nano structure layer 12 is formed by irregularly stacking and arranging a plurality of spherical surfaces 121 with different diameters.

[0045] Optionally, the plurality of spherical surfaces 121 includes a plurality of first spherical surfaces with a diameter A and a plurality of second spherical surfaces with a diameter B, the diameter of each first spherical surface is greater than the diameter of each second spherical surface, and the number of each first spherical surface is less than or equal to the number of each second spherical surface. In the present embodiment, the diameter A of the first spherical surface is, for example, 70 μm-80 μm, for example, 72 μm, 74 μm, 76 μm, 78 μm; the diameter B of the second spherical surface is, for example, 60 μm-70 μm, for example, 62 μm, 64 μm, 66 μm, 68 μm, but not limited thereto.

[0046] Optionally, the plurality of spherical surfaces 121 further includes a plurality of third spherical surfaces with a diameter C, the diameter of each second spherical surface is greater than the diameter of each third spherical surface, and the number of each second spherical surface is less than the number of each third spherical surface. In the present embodiment, the diameter C of the third spherical surface is, for example, 50 μm-60 μm, for example, 52 μm, 54 μm, 56 μm, 58 μm, but not limited thereto.

[0047] Optionally, the plurality of spherical surfaces 121 further comprises a plurality of fourth spherical surfaces with a diameter D, the diameter of each third spherical surface is greater than the diameter of each fourth spherical surface, and the number of each third spherical surface is less than or equal to the number of each fourth spherical surface. In this embodiment, the diameter D of the fourth spherical surface is, for example, 40-50 μm, such as 42 μm, 44 μm, 46 μm, 48 μm, but not limited thereto.

[0048] Optionally, the plurality of spherical surfaces 121 further comprises a plurality of fifth spherical surfaces with a diameter E, the diameter of each fourth spherical surface is greater than the diameter of each fifth spherical surface, and the number of each fourth spherical surface is less than or equal to the number of each fifth spherical surface. In this embodiment, the diameter E of the fifth spherical surface is, for example, 30-40 μm, such as 32 μm, 34 μm, 36 μm, 38 μm, but not limited thereto.

[0049] Optionally, the plurality of spherical surfaces 121 further comprises a plurality of sixth spherical surfaces with a diameter F, the diameter of each fifth spherical surface is greater than the diameter of each sixth spherical surface, and the number of each fifth spherical surface is less than the number of each sixth spherical surface. In this embodiment, the diameter F of the sixth spherical surface is, for example, 30-40 μm, such as 32 μm, 34 μm, 36 μm, 38 μm, but not limited thereto.

[0050] Optionally, the number ratio of the first, second, third, fourth, fifth and sixth spherical surfaces is 1:1:1.5:1.5:2.5:4.

[0051] Optionally, the material of the plating layer 13 is a non-conductive metal indium alloy, and the thickness is 80-150 nm, such as 90 nm, 100 nm, 110 nm, 120 nm, 130 nm, 140 nm, but not limited thereto. The plating layer 13 of the present application can realize the functions of metal color and touch control, and is arranged on the spherical surface 121 in a random shape by using a vacuum sputtering process.

[0052] Optionally, the color of the ink layer 14 is semi-transparent. In this embodiment, the color transmission is corrected by controlling the material of the ink, the blending ratio of the ink and the thickness of the ink. Optionally, the thickness of the ink layer is 0.5-4 μm, such as 1 μm, 1.5 μm, 2 μm, 2.5 μm, 3 μm, 3.5 μm.

[0053] Optionally, FIG. 4 is a schematic diagram of the cross-sectional structure of the decorative film of another embodiment of the present application. As shown in FIG. 4, the decorative film 10 comprises at least two ink layers 14 arranged in layers, and the color of each ink layer 14 gradually deepens or gradually lightens in the direction away from the plating layer 13. The present application has at least two ink layers 14 with color gradient, which can enhance the effect of compensating color cast.

[0054] Optionally, as shown in FIG. 1, the decorative film 10 further comprises a protective layer 15, which covers the ink layer 14. The protective layer 15 of the present application is used to protect the ink layer 14; the protective layer 15 is made of high-temperature-resistant and high-pressure-resistant material, and can resist temperature for a long time without changing physical properties at 150-180°C.

[0055] Optionally, the material of the protective layer 15 is transparent ink.

[0056] Optionally, the thickness of the protective layer 15 is 7-9 μm, for example, 7.5 μm, 8 μm, 8.5 μm, but not limited thereto.

[0057] FIG. 5 is a schematic view of the cross-sectional structure of the decorative assembly of the present application. As shown in FIG. 5, the present application also relates to a decorative assembly comprising the above-mentioned decorative film 10. The present application also relates to an automobile decoration part comprising the above-mentioned decorative film 10 and a light source 20, which is arranged on the side of the decorative film 10 close to the ink layer 14, and the light emitted by the light source 20 is emitted from the base layer 11; when the light passes through the ink layer 14, the ink layer 14 compensates the color cast of the light, so that the color of the light emitted from the base layer 11 is consistent with the color of the light emitted by the light source 20.

[0058] The above-mentioned embodiments are only illustrative of the principles and effects of the present application, and are not used to limit the present application. Any person skilled in the art can modify or change the above-mentioned embodiments without departing from the spirit and scope of the present application. Therefore, all equivalent modifications or changes made by those skilled in the art without departing from the spirit and technical thought of the present application should be covered by the claims of the present application. Industrial applicability

[0059] The decorative film of the present application has an ink layer capable of compensating color cast; when backlight is transmitted through the decorative film from one side of the ink layer, the ink layer can compensate color cast, and pull the color cast value of the light transmitted through the decorative film to the center value of the color cast value of the backlight source, so that the eye can see a normal color of the backlight source on the side close to the base layer, and the visual experience is improved; when the backlight source does not emit light, the texture of the micro-nano structure layer can be effectively enhanced under the effect of the reflection-increasing layer, and the plastic feeling of the inlaid injection molding (IML) product in the film is reduced.

Claims

1. A decorative film sheet, characterized by, The decorative film piece can transmit light, and comprises a base layer, a micro-nano structure layer, a plating layer, and at least one ink layer, the micro-nano structure layer is arranged on the base layer, the plating layer is arranged on the micro-nano structure layer, and the ink layer is arranged on the plating layer, the micro-nano structure layer is formed by stacking and arranging a plurality of spherical structures with different diameters and different quantities.

2. The decorative sheeting of claim 1 wherein, At least one of the following is included: Each of the spherical surfaces is formed by concave in a direction close to the base layer or convex in a direction away from the base layer; The plating layer is arranged on the spherical surface; The depth of the spherical surface is 1-3 μm.

3. The decorative sheeting of claim 2 wherein, The micro-nano structure layer comprises a plurality of spherical surfaces with different diameters, and the diameter of the spherical surface ranges from 30 μm to 80 μm.

4. The decorative sheeting of claim 3 wherein, At least one of the following is included: The plurality of spherical surfaces comprises a plurality of first spherical surfaces with a diameter A and a plurality of second spherical surfaces with a diameter B, the diameter of each first spherical surface is greater than that of each second spherical surface, and the number of each first spherical surface is less than or equal to that of each second spherical surface; The plurality of spherical surfaces further comprises a plurality of third spherical surfaces with a diameter C, the diameter of each second spherical surface is greater than that of each third spherical surface, and the number of each second spherical surface is less than that of each third spherical surface; The plurality of spherical surfaces further comprises a plurality of fourth spherical surfaces with a diameter D, the diameter of each third spherical surface is greater than that of each fourth spherical surface, and the number of each third spherical surface is less than or equal to that of each fourth spherical surface; The plurality of spherical surfaces further comprises a plurality of fifth spherical surfaces with a diameter E, the diameter of each fourth spherical surface is greater than that of each fifth spherical surface, and the number of each fourth spherical surface is less than or equal to that of each fifth spherical surface; The plurality of spherical surfaces further comprises a plurality of sixth spherical surfaces with a diameter F, the diameter of each fifth spherical surface is greater than that of each sixth spherical surface, and the number of each fifth spherical surface is less than that of each sixth spherical surface; The number ratio of the first spherical surface, the second spherical surface, the third spherical surface, the fourth spherical surface, the fifth spherical surface, and the sixth spherical surface is 1:1:1.5:1.5:2.5:

4.

5. The decorative sheeting of claim 1 wherein, The color of the ink layer is semi-transparent; The ink layer is used for compensating color cast; The thickness of the ink layer is 0.5-4 μm.

6. The decorative sheeting of claim 1 wherein, The decorative film piece comprises at least two ink layers arranged in layers, and the color of each ink layer gradually deepens or gradually lightens in a direction away from the plating layer.

7. The decorative sheeting of claim 1 wherein, The decorative film piece further comprises a protective layer covering the ink layer.

8. The decorative film piece of claim 7, wherein: The material of the protective layer is transparent ink; The thickness of the protective layer is 7-9 μm.

9. A trim assembly characterized by, The decorative film piece of any one of claims 1-8 is included.

10. An automotive trim piece characterized by, The decorative film piece of any one of claims 1-8 and a light source are included.

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