Microprism reflective film

Abstract

The utility model relates to a microprism reflective film, which comprises a film body, the film body comprises a protective layer, a reflective surface layer, a microprism layer, an adhesive layer and release paper, the protective layer, the reflective surface layer, the microprism layer, the adhesive layer and the release paper are sequentially overlapped from top to bottom, the microprism layer comprises a plurality of microprism monomers which are distributed in an array, and metal reflective coatings are evaporated on the surfaces of the microprism monomers. And the bottom surface of the reflective surface layer is coated with a nano transparent heat-insulating coating. The nanometer transparent heat-insulating coating is coated on the surface of the reflective surface of the reflective film, and the nanometer tungsten oxide of the nanometer transparent heat-insulating coating is stable in chemical performance, can effectively prevent infrared radiation and ultraviolet radiation, and is excellent in heat-insulating effect, so that the internal temperature of the reflective film is reduced, the adhesive layer is not easy to age and deform, and the service life of the reflective film is prolonged; in addition, the nanometer transparent heat insulation coating has good compatibility with other films, the films are not prone to layering after being compounded, and the reflective film is stable in structure and good in quality.

Description

Technical Field

[0001] The utility model relates to the technical field of light-emitting films, in particular to a microprism reflective film. Background Art

[0002] A reflective film is a retroreflective material that has been made into a film and can be directly applied. It is made by using glass bead technology, microprism technology, synthetic resin technology, film technology, coating technology and microreplication technology. At present, a metal reflective coating is vapor-deposited on the surface of the microprism monomers of some microprism reflective films. The metal reflective coating has stable optical properties, which enhances the retroreflected light. However, this kind of reflective film has some deficiencies. When the reflective film is used, it is irradiated by a light source for a long time, resulting in a relatively high temperature inside the reflective film. The adhesive layer is prone to aging and deformation, causing the adhesive layer to delaminate from the prism layer. Air or water vapor will penetrate into the delamination, reducing the reflection effect and shortening the service life. Summary of the Invention

[0003] The utility model provides a microprism reflective film to solve the problems that the existing microprism reflective film is prone to aging and deformation, has a reduced reflection effect and a short service life when exposed to strong light for a long time.

[0004] The utility model adopts the following technical scheme:

[0005] A microprism reflective film includes a film body. The film body includes a protective layer, a reflective surface layer, a microprism layer, an adhesive layer and a release paper which are laminated in sequence from top to bottom. The microprism layer includes a plurality of microprism monomers distributed in an array. A metal reflective coating is vapor-deposited on the surface of the microprism monomers. A nano transparent heat insulation coating is coated on the bottom surface of the reflective surface layer. The thickness of the nano transparent heat insulation coating is 15μm - 35μm, and preferably the thickness of the nano transparent heat insulation coating is 15μm.

[0006] Further, the nano transparent heat insulation coating is made of nano tungsten oxide and titanium dioxide.

[0007] Further, the metal reflective coating is an aluminum plating layer or a silver plating layer, and preferably the metal reflective coating is a silver plating layer.

[0008] Further, the thickness of the metal reflective coating is 5μm - 10μm, and preferably the thickness of the metal reflective coating is 10μm.

[0009] Further, the adhesive layer is an optical curing adhesive layer or a pressure-sensitive adhesive layer, and preferably the adhesive layer is a pressure-sensitive adhesive layer.

[0010] Further, the shape of the microprism monomer is a tetrahedral pyramid.

[0011] Further, the protective layer is a hydrogel film.

[0012] Further, the above-mentioned reflective surface layer is made of PET material.

[0013] From the above description of the structure of the present utility model, compared with the prior art, the present utility model has the following advantages: The reflective surface layer of the reflective film of the present utility model is coated with a nano transparent heat insulation coating. The nano tungsten oxide of the nano transparent heat insulation coating has stable chemical properties, can effectively block infrared radiation and ultraviolet radiation, has excellent heat insulation effect, reduces the internal temperature of the reflective film, makes the adhesive layer not easy to age and deform, and prolongs the service life of the reflective film; In addition, the nano transparent heat insulation coating has good compatibility with other films, and the films are not easy to delaminate during lamination, and the structure of the reflective film is stable and the quality is good. Description of the Drawings

[0014] Figure 1 It is a schematic structural diagram of the reflective film of the present utility model. Detailed Embodiments

[0015] The following describes the detailed embodiments of the present utility model with reference to the drawings.

[0016] Refer to Figure 1 , a microprism reflective film, including a film body 1. The film body 1 includes a protective layer 11, a reflective surface layer 12, a microprism layer 10, an adhesive layer 13 and a release paper 14 stacked in sequence from top to bottom. The microprism layer 10 includes a plurality of microprism monomers distributed in an array. A metal reflective coating 101 is vapor-deposited on the surface of the microprism monomer. A nano transparent heat insulation coating 121 is coated on the bottom surface of the reflective surface layer 12. The thickness of the nano transparent heat insulation coating 121 is 15μm - 35μm, and preferably the thickness of the nano transparent heat insulation coating 121 is 15μm.

[0017] Further, the nano transparent heat insulation coating 121 is a ceramic heat insulation and heat preservation water-based coating, and the nano transparent heat insulation coating 121 is made of nano tungsten oxide and titanium dioxide.

[0018] Further, the metal reflective coating 101 is an aluminized layer or a silver-plated layer, and preferably the metal reflective coating 101 is a silver-plated layer.

[0019] Further, the thickness of the metal reflective coating 101 is 5μm - 10μm, and preferably the thickness of the metal reflective coating 101 is 10μm.

[0020] Further, the adhesive layer 13 is an optically cured adhesive layer or a pressure-sensitive adhesive layer, and preferably the adhesive layer 13 is a pressure-sensitive adhesive layer.

[0021] Further, the shape of the microprism monomer is a tetrahedral pyramid.

[0022] Further, the protective layer 11 is a hydrogel film.

[0023] Furthermore, the above-mentioned reflective surface layer 12 is made of PET material.

[0024] The reflective surface layer 12 of the reflective film of the present utility model is coated with a nano transparent heat insulation coating 121. The nano tungsten oxide of the nano transparent heat insulation coating 121 has stable chemical properties, can effectively block infrared radiation and ultraviolet radiation, has excellent heat insulation effect, reduces the internal temperature of the reflective film, makes the adhesive layer not easy to age and deform, and extends the service life of the reflective film; in addition, the nano transparent heat insulation coating 121 has good compatibility with other films, and the films are not easy to delaminate during lamination, and the structure of the reflective film is stable and the quality is good.

[0025] The above is only the specific embodiment of the present utility model, but the design concept of the present utility model is not limited thereto. Any non-substantial modification of the present utility model using this concept shall fall within the scope of infringement of the protection scope of the present utility model.

Claims

1. A microprismatic reflective film, comprising a film body, wherein the film body comprises a protective layer, a reflective surface layer, a microprismatic layer, an adhesive layer and a release paper stacked in sequence from top to bottom, the microprismatic layer comprises a plurality of microprismatic monomers distributed in an array, and a metal reflective coating layer is evaporated on the surface of the microprismatic monomer, characterized in that: The bottom surface of the reflective surface layer is coated with a nano transparent heat insulation coating, and the thickness of the nano transparent heat insulation coating is 15 μm-35 μm.

2. The microprismatic reflective film according to claim 1, characterized in that: The metal reflective coating is an aluminum coating or a silver coating.

3. The microprismatic reflective film according to claim 1, characterized in that: The thickness of the metal reflective coating is 5 μm-10 μm.

4. The microprismatic reflective film according to claim 1, characterized in that: The adhesive layer is an optically curable adhesive layer or a pressure-sensitive adhesive layer.

5. The microprismatic reflective film according to claim 1, characterized in that: The micro-prism monomer is in the shape of a tetrahedron.

6. The microprismatic reflective film according to claim 1, characterized in that: The protective layer is a hydrogel film.

7. The microprismatic reflective film according to claim 1, characterized in that: The reflective surface layer is made of PET material.

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