Decorative film

Abstract

The utility model discloses a decorative film. The decorative film comprises a bearing layer, a micro-nano structure layer and a coating layer, the bearing layer comprises a first side face and a second side face which are oppositely arranged. The micro-nano structure layer and the bearing layer are arranged in a stacked mode, the micro-nano structure layer is provided with a plurality of micro-nano structures arranged in a protruding and / or sunken mode, and the micro-nano structure layer comprises a fluctuating surface on the side where the micro-nano structures are located. The coating layer covers the first side surface, the second side surface or the fluctuating surface in a graphical hollowed-out manner, the coating layer presents decorative images and texts with metallic luster, and the decorative images and texts of the coating layer are superposed with a light and shadow effect of a micro-nano structure, so that the decorative effect of the decorative film is richer, and the texture of the decorative film is improved.

Description

Technical Field

[0001] The present application relates to the technical field of decorative films, and in particular to a decorative film. Background Art

[0002] Decorative film is a common decorative material used in 3C electronic products. Traditional decorative films may feature a single texture or a combination of multiple textures, combined with other techniques such as silk-screen printing and coating to achieve the desired lighting and decorative effects.

[0003] However, the effects of decorative films in the existing technology are basically achieved by micro-nano structures to achieve light and shadow effects, or the effects are pure colors, which are relatively simple, and the resulting graphic effects have no metallic feel. Therefore, it is urgent to provide a new structure to solve the technical problems existing in the existing technology. Summary of the Invention

[0004] Based on this, it is necessary to provide a new decorative film to solve the above technical problems.

[0005] A technical solution of the present application is: a decorative film, comprising:

[0006] The carrier layer includes a first side surface and a second side surface that are oppositely disposed;

[0007] a micro-nanostructure layer stacked with the carrier layer, the micro-nanostructure layer having a plurality of protruding and / or recessed micro-nanostructures, and the micro-nanostructure layer including an undulating surface on the side where the micro-nanostructures are located;

[0008] The coating layer is graphically hollowed out and covered on the first side surface, the second side surface or the undulating surface. The coating layer presents decorative graphics with a metallic luster, and the decorative graphics of the coating layer are superimposed on the light and shadow effects of the micro-nano structure.

[0009] In one embodiment, the micro-nano structure layer is disposed on the first side surface, the micro-nano structure is disposed on a side of the micro-nano structure layer away from the first side surface, and the coating layer is coated on the undulating surface.

[0010] In one embodiment, the decorative film further includes an ink layer covering the coating layer.

[0011] In one embodiment, the decorative film further includes an optical film layer attached to the coating layer.

[0012] In one embodiment, the optical film layer includes a texture structure layer and an ink base layer that are stacked together, the texture structure layer is arranged between the coating layer and the ink base layer, and the texture structure layer includes a plurality of raised and / or recessed texture structures.

[0013] In one embodiment, the optical film layer further includes a reflective layer located between the texture structure layer and the ink primer layer.

[0014] In one embodiment, the optical film layer includes a reflective layer and an ink primer layer that are stacked together, and the reflective layer is located between the coating layer and the ink primer layer.

[0015] In one embodiment, the optical film layer further includes an adhesive layer and a base layer, and the base layer is attached to the coating layer through the adhesive layer.

[0016] In one embodiment, the coating layer is covered on the first side or the second side of the carrier layer, and the decorative film further includes a coating layer and a coloring layer. The coating layer is arranged between the micro-nano structure layer and the coloring layer, and the coating layer is covered on the undulating surface.

[0017] In one embodiment, the coating layer is covered on the first side or the second side of the carrier layer, and the decorative film also includes a substrate layer, a coating layer and a coloring layer. The substrate layer is adhered to the carrier layer, and the micro-nano structure layer, the coating layer and the coloring layer are sequentially stacked on the substrate layer, and the coating layer is covered on the undulating surface.

[0018] The beneficial effects of the present application are as follows: the coating layer is graphically arranged on the undulating surface and presents decorative patterns with a metallic luster, the coating layer is graphically hollowed out and covered on the micro-nano structure, and the decorative patterns of the coating layer are superimposed on the light and shadow effects of the micro-nano structure, thereby enriching the decorative effect of the decorative film and improving the texture of the decorative film. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic structural diagram of a decorative film for this application;

[0020] Figure 2 This is another structural schematic diagram of a decorative film of the present application;

[0021] Figure 3 This is another structural schematic diagram of a decorative film of the present application;

[0022] Figure 4 This is another structural schematic diagram of a decorative film of the present application;

[0023] Figure 5 This is another structural schematic diagram of a decorative film of the present application;

[0024] Figure 6 This is another structural schematic diagram of a decorative film of the present application. DETAILED DESCRIPTION

[0025] To facilitate understanding of the present application, a more comprehensive description of the present application will be provided below with reference to the accompanying drawings. The accompanying drawings illustrate preferred embodiments of the present application. However, the present application can be implemented in many different forms and is not limited to the embodiments described below. Rather, these embodiments are provided to provide a more thorough and comprehensive understanding of the disclosure of the present application.

[0026] It should be noted that when an element is referred to as being "disposed on" another element, it may be directly on the other element or there may be an element centered thereon. When an element is referred to as being "connected to" another element, it may be directly connected to the other element or there may be an element centered thereon. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only implementations.

[0027] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this application pertains. The terms used herein in the specification of this application are intended only to describe specific embodiments and are not intended to limit this application. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0028] The utility model discloses a decorative film comprising a carrier layer, a micro-nanostructure layer, and a coating layer. The carrier layer comprises a first side surface and a second side surface disposed opposite each other. The micro-nanostructure layer and the carrier layer are stacked, the micro-nanostructure layer comprising a plurality of raised and / or recessed micro-nanostructures, and the micro-nanostructure layer comprising an undulating surface on the side where the micro-nanostructures are located. The coating layer is graphically hollowed out and coated on the first surface, the second surface, or the undulating strip surface. The coating layer presents decorative graphics with a metallic luster. The decorative graphics of the coating layer are superimposed on the light and shadow effects of the micro-nanostructures, thereby enriching the decorative effect of the decorative film and enhancing the texture of the decorative film.

[0029] Furthermore, the coating layer is made of materials such as silicon, copper, titanium, and niobium, and is deposited in one or more layers through evaporation, sputtering, ion plating, physical deposition, or chemical deposition. The layers are then hollowed out to create decorative patterns with a metallic sheen. The decorative patterns are superimposed on the light and shadow effects of the micro-nanostructures, enriching the decorative effect and enhancing the texture.

[0030] Furthermore, the carrier layer is a transparent substrate layer, and its material can be selected from glass, PET, PC, PI, PMMA, CPI, etc., which has good transparency, flexibility, and stability. The micro-nanostructure layer is formed by applying a curable adhesive on the carrier layer, imprinting and curing it to form the micro-nanostructure. For example, UV adhesive can be applied to the PET layer, imprinted, cured, and then demolded to form the micro-nanostructure. The micro-nanostructure is arranged in a raised or recessed manner, which can produce light and shadow effects.

[0031] Furthermore, the graphical shape is at least one of text, letters, numbers, symbols, human figures, animals, plants, objects, landscapes, geometric figures, abstract figures, lines, logos, etc. The graphics are designed according to the decorative needs, and the decorative graphics with metallic texture are presented by graphically setting the coating layer, and the light and shadow effects of the micro-nano structure are superimposed to enrich the decorative effect and enhance the texture.

[0032] In one embodiment, the coating layer is a gradient coating layer. For example, the color of the coating layer is gradually changed, or the thickness of the coating layer is gradually changed, so that the coating layer presents a decorative pattern with a gradient effect, further enriching the decorative effect and improving the texture.

[0033] In one embodiment, the micro-nanostructure layer is disposed on a first side surface, the micro-nanostructure is disposed on a side of the micro-nanostructure layer away from the first side surface, and the coating layer is disposed over the undulating surface. Furthermore, the decorative film includes an ink layer covering the coating layer. The ink layer is disposed as a single layer, entirely covering the coating layer and the exposed micro-nanostructure layer. The ink layer can be a dark ink or a colored ink, serving as a base and providing color to the decorative film.

[0034] In one embodiment, the decorative film further comprises an optical film layer attached to the coating layer. The optical film layer presents an optical effect that can be superimposed with the optical effect and decorative graphics of the decorative film to present a richer decorative effect and further enhance the texture.

[0035] In one embodiment, the optical film layer includes a stacked textured structure layer and an ink base layer. The textured structure layer is disposed between the coating layer and the ink base layer. The textured structure layer includes a plurality of raised and / or recessed texture structures. The textured structure creates a light and shadow effect, while the ink base layer can provide a base or color, enriching the decorative effect.

[0036] In one embodiment, the optical film layer also includes a reflective layer located between the texture structure layer and the ink base layer. The reflective layer is set on the entire surface, which has the effect of enhancing the decorative effect of the micro-nano structure layer, the coating layer, and the texture structure layer, and can provide color for the decorative film and also jointly display color for the ink base layer.

[0037] In one embodiment, the optical film layer includes a laminated reflective layer and an ink base layer. The reflective layer is located between the coating layer and the ink base layer. The reflective layer is provided on the entire surface to enhance the decorative effect of the coating layer and the micro-nanostructure layer and to provide color to the decorative film. The reflective layer is formed by coating or plating.

[0038] Furthermore, the optical film layer includes an adhesive layer and a base layer, with the base layer attached to the coating layer via the adhesive layer. The adhesive layer can be made of OCA adhesive or UV adhesive, exhibiting good transmittance and adhesion. The base layer is a transparent substrate layer, made of materials such as glass, PET, PC, PI, PMMA, and CPI, exhibiting good transparency, flexibility, and stability. The texture structure layer is formed by applying a curing adhesive to the base layer, imprinting and curing the adhesive to create a textured structure.

[0039] In one embodiment, the coating layer is applied to the first or second side of the carrier layer. The decorative film further includes a coating layer and a coloring layer. The coating layer is disposed between the micro-nanostructure layer and the coloring layer and is applied to the undulating surface. The coating layer enhances the display effects of the micro-nanostructure layer and the coating layer and also provides color to the decorative film. The coloring layer is preferably an ink layer, which serves as a base and assists in color development.

[0040] In one embodiment, the coating layer is applied to the first or second side of the carrier layer. The decorative film further comprises a substrate layer, a coating layer, and a coloring layer. The substrate layer is adhered to the carrier layer, and the micro-nanostructure layer, coating layer, and coloring layer are sequentially stacked on the substrate layer. The coating layer is applied to the undulating surface. The substrate layer is adhered to the carrier layer using a self-contained or separately provided adhesive, such as OCA adhesive or UV adhesive.

[0041] Please refer to the following Figures 1 to 4 , the decorative film of the present invention is described with examples.

[0042] Please refer to Figure 1 The present invention discloses a decorative film 100 according to a first embodiment, which includes a carrier layer 1, a micro-nanostructure layer 2, and a coating layer 3. In this embodiment, the carrier layer 1 is a PET layer, and the carrier layer 1 includes a first side surface 11 and a second side surface 12 arranged opposite to each other. The micro-nanostructure layer 2 is formed by coating UV glue on the first side surface 11 of the PET layer, embossing and curing, and then demolding to form a micro-nanostructure 21. The side where the micro-nanostructure 21 is located forms an undulating surface 22 of the micro-nanostructure layer 2. Layers 1 to 8 of coatings are patterned on the undulating surface 22 to obtain a patterned coating layer 3. The coating layer 3 is patterned on the undulating surface 22 and presents decorative graphics with a metallic luster. The coating layer 3 is patterned and hollowed out to cover the micro-nanostructure 21. The decorative graphics of the coating layer 3 are superimposed on the light and shadow effects of the micro-nanostructure 21, thereby enriching the decorative effect of the decorative film 100 and improving the texture of the decorative film 100.

[0043] In this embodiment, the micro-nanostructure 21 is a raised structure, and the coating layer 3 is arranged to follow the surface undulations of the raised structure. The carrier layer 1 is a transparent substrate, and the second side surface 12 is the viewing side. The micro-nanostructure 21 presents a complete light and shadow effect, while the coating layer 3 presents decorative graphics with a metallic texture through the micro-nanostructure layer 2 and the carrier layer 1. The decorative graphics and the light and shadow effects are superimposed on each other. In other embodiments, the coating layer 3 can also be configured as a gradient coating layer, with a gradient of color or thickness, to produce a variety of gradient effects, such as a single color gradient or a multi-color gradient.

[0044] Please refer to Figure 2 The present invention discloses a decorative film 200 according to a second embodiment. Compared to the decorative film 100 according to the first embodiment, the decorative film 200 according to the second embodiment further includes an ink layer 4 covering the coating layer 3. The ink layer 4 is provided as a single layer, entirely covering the coating layer 3 and the micro-nanostructure layer 2 exposed from the patterned coating layer 3. The ink layer 4 can be a dark ink or a colored ink to provide a base and color for the decorative film 200.

[0045] Please refer to Figure 3 The present invention discloses a decorative film 300 according to a third embodiment. Compared to the decorative film 100 according to the first embodiment, the decorative film 300 according to the third embodiment further includes an optical film layer 5 attached to the coating layer 3. The optical film layer 5 sequentially comprises an adhesive layer 51, a base layer 52, a texture structure layer 53, and an ink base layer 54. In this embodiment, the adhesive layer 51 is an OCA adhesive, and the base layer 52 is a PET layer. The adhesive layer 51 bonds the coating layer 3 and the base layer 52. The texture structure layer 53 is formed by applying UV adhesive to the PET layer of the base layer 52, embossing and curing it, and then demolding it to obtain a texture structure 531. The texture structure 531 is a raised structure that can produce light and shadow effects. The light and shadow effects of the texture structure 531 and the light and shadow effects of the micro-nanostructure 21 can be displayed independently or in an interfering and superimposed manner. The decorative graphics of the coating layer 3 can be superimposed to enrich the decorative effect and enhance the texture. The ink base layer 54 covers the texture structure layer 53 and provides a base and color for the decorative film 200.

[0046] Please refer to Figure 4 The present invention discloses a decorative film 400 according to a fourth embodiment. Compared to the decorative film 300 according to the third embodiment, the optical film layer 5 of the decorative film 400 further includes a reflective layer 55. The reflective layer 55 is disposed between the texture structure layer 53 and the ink base layer 54. Formed by coating on the texture structure 531, the reflective layer 55 enhances the display effects of the texture structure 531, the micro-nanostructure 21, and the coating layer 3. It also provides color to the decorative film 400, either alone or in combination with the ink base layer 54. This enriches the decorative effect and enhances the texture.

[0047] Please refer to Figure 5The present invention discloses a decorative film 500 according to a fifth embodiment, which sequentially comprises a carrier layer 61, a coating layer 62, a micro-nanostructure layer 63, a coating layer 64, and a coloring layer 65. The carrier layer 61 comprises a first side surface 611 and a second side surface 612 disposed opposite each other. The coating layer 62 is patterned and hollowed out and covers the first side surface 611. The micro-nanostructure layer 63 is disposed on the coating layer 62 and has a raised micro-nanostructure 631 on a side opposite to the coating layer 62. The side on which the micro-nanostructure 631 is located is an undulating surface 632. The coating layer 64 is plated on the undulating surface 632, and the coloring layer 65 covers the coating layer 64. The coating layer 62 presents decorative graphics with a metallic luster. The decorative graphics of the coating layer 62 are superimposed on the light and shadow effects of the micro-nanostructure 631, thereby enriching the decorative effect of the decorative film 500 and enhancing the texture of the decorative film 500. In other embodiments, the coating layer 62 may be disposed on the second surface 612 of the carrier layer 61 , and the micro-nanostructure layer 63 may be disposed on the first surface 611 of the carrier layer 61 .

[0048] Please refer to Figure 6 The present invention discloses a decorative film 600 according to a sixth embodiment. Compared to the decorative film 500 according to the fifth embodiment, the decorative film 600 according to the sixth embodiment further includes a substrate layer 66. The substrate layer 66 is located between the coating layer 62 and the micro-nanostructure layer 63. The substrate layer 66 is bonded to the coating layer 62 using its own adhesive and applied adhesive. The micro-nanostructure layer 63 is disposed on the side of the substrate layer 66 away from the coating layer 62.

[0049] In order to make the above-mentioned objects, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail above with reference to the accompanying drawings. In the above description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described above, and those skilled in the art can make similar improvements without violating the connotation of the present application. Therefore, the present application is not limited to the specific embodiments disclosed above. In addition, the various technical features of the embodiments described above can be combined arbitrarily. In order to make the description concise, not all possible combinations of the various technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0050] The above-described embodiments merely represent several implementation methods of the present application. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that a person of ordinary skill in the art may make various modifications and improvements without departing from the spirit of the present invention, all of which fall within the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be determined by the appended claims.

Claims

1. A decorative film, characterized in that: It includes: The carrier layer includes a first side surface and a second side surface that are oppositely disposed; a micro-nanostructure layer stacked with the carrier layer, the micro-nanostructure layer having a plurality of protruding and / or recessed micro-nanostructures, and the micro-nanostructure layer including an undulating surface on the side where the micro-nanostructures are located; The coating layer is graphically hollowed out and covered on the first side surface, the second side surface or the undulating surface. The coating layer presents decorative graphics with a metallic luster, and the decorative graphics of the coating layer are superimposed on the light and shadow effects of the micro-nano structure.

2. The decorative film according to claim 1, characterized in that The micro-nano structure layer is arranged on the first side surface, the micro-nano structure is arranged on a side of the micro-nano structure layer away from the first side surface, and the coating layer is covered on the undulating surface.

3. The decorative film according to claim 2, characterized in that: The decorative film further includes an ink layer covering the coating layer.

4. The decorative film according to claim 2, characterized in that The decorative film further includes an optical film layer attached to the coating layer.

5. The decorative film according to claim 4, characterized in that: The optical film layer includes a texture structure layer and an ink base layer that are stacked. The texture structure layer is arranged between the coating layer and the ink base layer. The texture structure layer includes a plurality of convex and / or concave texture structures.

6. The decorative film according to claim 5, characterized in that The optical film layer further includes a reflective layer located between the texture structure layer and the ink primer layer.

7. The decorative film according to claim 4, characterized in that: The optical film layer comprises a reflective layer and an ink primer layer which are stacked together, and the reflective layer is located between the coating layer and the ink primer layer.

8. The decorative film according to claim 4, wherein: The optical film layer further includes an adhesive layer and a base layer, and the base layer is attached to the coating layer through the adhesive layer.

9. The decorative film according to claim 1, wherein: The coating layer is covered on the first side or the second side of the carrier layer. The decorative film further includes a coating layer and a coloring layer. The coating layer is arranged between the micro-nano structure layer and the coloring layer, and the coating layer is covered on the undulating surface.

10. The decorative film according to claim 1, wherein: The coating layer is covered on the first side or the second side of the supporting layer. The decorative film also includes a substrate layer, a coating layer and a coloring layer. The substrate layer is adhered to the supporting layer. The micro-nano structure layer, the coating layer and the coloring layer are sequentially stacked on the substrate layer. The coating layer is covered on the undulating surface.

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