Low-radiation heat-insulation automotive glass protective film

Abstract

The utility model discloses a low-radiation heat-insulation automobile glass protective film which comprises a base material, a light-transmitting layer, a reflecting layer and an interference reflecting layer, the base material is a TPU (thermoplastic polyurethane) film, the light-transmitting layer is arranged on the surface of the base material, the reflecting layer is arranged on one side, far away from the base material, of the light-transmitting layer, and the interference reflecting layer is arranged on one side, far away from the light-transmitting layer, of the reflecting layer; the TPU film is beneficial to improving weather resistance and strength of the base material, slowing down aging of the base material and guaranteeing high light transmittance of the base material, the light-transmitting layer is used for improving the light transmittance of the automobile glass so as to guarantee brightness in an automobile, and the reflecting layer is used for reflecting infrared rays so as to prevent heat from entering the automobile and reduce temperature in the automobile. The interference reflection layer is used for adjusting the optical performance of the automobile glass, and then the heat insulation effect is improved.

Description

Technical Field

[0001] This utility model relates to the field of automotive protective film technology, and in particular to a low-emissivity heat-insulating automotive glass protective film. Background Technology

[0002] With the development of the automotive industry, larger window areas have become the mainstream design for more and more cars. However, while bringing a wider field of vision and a more comfortable experience, it also brings challenges in terms of heat insulation, sun protection, and explosion protection. Currently, the base material of automotive glass protective films is mostly PET (polyethylene terephthalate), which has problems such as poor weather resistance, easy aging, and limited heat insulation performance. Utility Model Content

[0003] To overcome the above-mentioned shortcomings, the purpose of this utility model is to provide a low-emissivity heat-insulating automotive glass protective film.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is: a low-emissivity heat-insulating automotive glass protective film, comprising a substrate, a light-transmitting layer, a reflective layer, and an interference-reflective layer. The substrate is made of TPU film. The light-transmitting layer is disposed on the surface of the substrate. The reflective layer is disposed on the side of the light-transmitting layer away from the substrate. The interference-reflective layer is disposed on the side of the reflective layer away from the light-transmitting layer.

[0005] In this technical solution, the TPU film helps improve the weather resistance and strength of the substrate, slows down the aging of the substrate, and ensures that the light transmittance of the substrate is high enough. The light-transmitting layer is used to improve the light transmittance of the automotive glass, thereby ensuring the brightness inside the vehicle. The reflective layer is used to reflect infrared rays, thereby blocking heat from entering the vehicle and reducing the temperature inside the vehicle. The interference reflective layer is used to adjust the optical performance of the automotive glass, thereby improving the heat insulation effect.

[0006] In some embodiments, the light-transmitting layer includes a first light-transmitting layer and a second light-transmitting layer. The first light-transmitting layer is disposed on the surface of the substrate, and the second light-transmitting layer is disposed on the side of the first light-transmitting layer away from the substrate. The material of the first light-transmitting layer is... The thickness of the first light-transmitting layer is 3 nanometers, and the material of the second light-transmitting layer is... The thickness of the second light-transmitting layer is 5 nanometers.

[0007] In this technical solution, the first light-transmitting layer improves the transmittance of visible light, thereby ensuring the reorganization of light inside the vehicle, and the second light-transmitting layer is used to adjust optical performance, thereby improving the heat insulation effect of the automotive glass.

[0008] In some embodiments, the reflective layer includes a first reflective layer and a second reflective layer. The first reflective layer is disposed on the side of the second light-transmitting layer away from the first light-transmitting layer, and the second reflective layer is disposed on the side of the first reflective layer away from the second light-transmitting layer. The first and second reflective layers are made of [material name missing]. The thickness of the first reflective layer is 5 nanometers, and the thickness of the second reflective layer is 3 nanometers.

[0009] In this technical solution, the first reflective layer and the second reflective layer utilize... It reflects infrared rays, thereby blocking heat.

[0010] In some embodiments, the low-emissivity heat-insulating automotive glass protective film further includes a first protective layer disposed between the first reflective layer and the second reflective layer, the first protective layer being made of... The thickness of the first protective layer is 5 nanometers.

[0011] In this technical solution, the first protective layer is used to protect the first reflective layer and prevent the first protective layer from being oxidized or eroded, thereby ensuring the heat insulation effect of the low-emissivity heat-insulating automotive glass protective film.

[0012] In some embodiments, the low-emissivity heat-insulating automotive glass protective film further includes a second protective layer disposed on the side of the second reflective layer away from the first reflective layer, and the material of the second protective layer is... The thickness of the second protective layer is 2 nanometers.

[0013] In this technical solution, the second protective layer is used to protect the second reflective layer and prevent the second protective layer from being oxidized or eroded, thereby ensuring the heat insulation effect of the low-emissivity heat-insulating automotive glass protective film.

[0014] In some embodiments, the interference reflection layer includes a first interference reflection layer, a second interference reflection layer, and a third interference reflection layer. The first interference reflection layer is disposed on the side of the second protective layer away from the second reflection layer, the second interference reflection layer is disposed on the side of the first interference reflection layer away from the second protective layer, and the third interference reflection layer is disposed on the side of the second interference reflection layer away from the first interference reflection layer.

[0015] In this technical solution, the first and second interference reflective layers are used to adjust the optical performance of the automotive glass, thereby improving the heat insulation effect, and the third interference reflective layer is used to reflect infrared rays, thereby blocking heat.

[0016] In some embodiments, the material of the first interference reflection layer is The thickness of the first interference reflective layer is 3 nanometers, and the material of the second interference reflective layer is... The second interference reflective layer has a thickness of 2 nanometers, and the third interference reflective layer is made of... The thickness of the third interference reflective layer is 2 nanometers.

[0017] In this technical solution, the first interference reflection layer utilizes The optical properties of automotive glass are adjusted using a second interference reflective layer. The optical properties of automotive glass are adjusted using a third interference reflective layer. It reflects infrared rays, thereby blocking heat.

[0018] In some embodiments, the low-emissivity heat-insulating automotive glass protective film further includes a third protective layer, which is disposed on the side of the third interference-reflective layer away from the second interference-reflective layer, and the material of the third protective layer is... The thickness of the third protective layer is 2 nanometers.

[0019] In this technical solution, the third protective layer protects the interference reflection layer, preventing it from being oxidized or eroded, thereby ensuring the heat insulation effect of the low-emissivity heat-insulating automotive glass protective film.

[0020] In some embodiments, the low-emissivity heat-insulating automotive glass protective film further includes a fourth protective layer, which is disposed on the side of the third protective layer away from the third interference reflection layer, and the material of the fourth protective layer is... The thickness of the fourth protective layer is 5 nanometers.

[0021] In this technical solution, the fourth protective layer is used to provide overall protection for the low-emissivity heat-insulating automotive glass protective film.

[0022] The beneficial effects of this invention are as follows: by using TPU film as the substrate of the low-emissivity heat-insulating automotive glass protective film, the weather resistance and strength of the substrate are improved, while ensuring that the light transmittance of the substrate is high enough. The light transmittance of the automotive glass is improved through the light-transmitting layer, thereby ensuring the brightness inside the car. The infrared rays are reflected through the reflective layer, thereby blocking heat from entering the car and reducing the temperature inside the car. The optical performance of the automotive glass is adjusted through the interference reflective layer, thereby improving the heat insulation effect. The protective layer protects the light-transmitting layer, reflective layer and interference reflective layer inside the low-emissivity heat-insulating automotive glass protective film. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of an embodiment of the present utility model;

[0024] In the figure: 1. Substrate; 21. First light-transmitting layer; 22. Second light-transmitting layer; 31. First reflective layer; 32. Second reflective layer; 41. First protective layer; 42. Second protective layer; 43. Third protective layer; 44. Fourth protective layer; 51. First interference reflective layer; 52. Second interference reflective layer; 53. Third interference reflective layer. Detailed Implementation

[0025] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the scope of protection of the present invention.

[0026] Combined with appendix Figure 1 As shown, this utility model provides a low-emissivity heat-insulating automotive glass protective film, including a substrate 1, a light-transmitting layer, a reflective layer, and an interference-reflective layer. The substrate 1 is made of TPU film. The surface of the TPU film is treated with corona discharge or plasma to improve the adhesion of the TPU film surface, making the light-transmitting layer and the TPU film adhere more tightly. The light-transmitting layer is disposed on the surface of the substrate 1. The reflective layer is disposed on the side of the light-transmitting layer away from the substrate 1. The interference-reflective layer is disposed on the side of the reflective layer away from the light-transmitting layer. For example, multiple thin films are sequentially deposited on the surface of the TPU substrate 1 using magnetron sputtering technology to serve as the light-transmitting layer, the reflective layer, and the interference-reflective layer, respectively.

[0027] TPU film helps improve the weather resistance and strength of substrate 1, slows down the aging of substrate 1, and ensures that the light transmittance of substrate 1 is high enough. The light-transmitting layer is used to improve the light transmittance of automotive glass, thereby ensuring the brightness inside the car. The reflective layer is used to reflect infrared rays, thereby blocking heat from entering the car and reducing the temperature inside the car. The interference reflective layer is used to adjust the optical performance of automotive glass, thereby improving the heat insulation effect.

[0028] Continue to combine with the appendix Figure 1 As shown, in some embodiments, the light-transmitting layer includes a first light-transmitting layer 21 and a second light-transmitting layer 22. The first light-transmitting layer 21 is disposed on the surface of the substrate 1, and the second light-transmitting layer 22 is disposed on the side of the first light-transmitting layer 21 away from the substrate 1. The material of the first light-transmitting layer 21 is... The thickness of the first light-transmitting layer 21 is 3 nanometers, and the material of the second light-transmitting layer 22 is... The second light-transmitting layer 22 has a thickness of 5 nanometers. The first light-transmitting layer 21 improves the transmittance of visible light, thereby ensuring the reconstruction of light inside the vehicle. The second light-transmitting layer 22 is used to adjust optical performance, thereby improving the heat insulation effect of the car glass.

[0029] Continue to combine with the appendix Figure 1As shown, in some embodiments, the reflective layer includes a first reflective layer 31 and a second reflective layer 32. The first reflective layer 31 is disposed on the side of the second light-transmitting layer 22 away from the first light-transmitting layer 21, and the second reflective layer 32 is disposed on the side of the first reflective layer 31 away from the second light-transmitting layer 22. The material of the first reflective layer 31 and the second reflective layer 32 is... The thickness of the first reflective layer 31 is 5 nanometers and the thickness of the second reflective layer 32 is 3 nanometers. The first reflective layer 31 and the second reflective layer 32 reflect infrared rays, thereby blocking heat.

[0030] Continue to combine with the appendix Figure 1 As shown, in some embodiments, the low-emissivity heat-insulating automotive glass protective film further includes a first protective layer 41, which is disposed between the first reflective layer 31 and the second reflective layer 32. The material of the first protective layer 41 is... The thickness of the first protective layer 41 is 5 nanometers. The first protective layer 41 is used to protect the first reflective layer 31 and prevent the first protective layer 41 from being oxidized or eroded, thereby ensuring the heat insulation effect of the low-emissivity heat-insulating automotive glass protective film.

[0031] Continue to combine with the appendix Figure 1 As shown, in some embodiments, the low-emissivity heat-insulating automotive glass protective film further includes a second protective layer 42, which is disposed on the side of the second reflective layer 32 away from the first reflective layer 31. The material of the second protective layer 42 is... The second protective layer 42 has a thickness of 2 nanometers. The second protective layer 42 is used to protect the second reflective layer 32 and prevent the second protective layer 42 from being oxidized or eroded, thereby ensuring the heat insulation effect of the low-emissivity heat-insulating automotive glass protective film.

[0032] Continue to combine with the appendix Figure 1 As shown, in some embodiments, the interference reflection layer includes a first interference reflection layer 51, a second interference reflection layer 52, and a third interference reflection layer 53. The first interference reflection layer 51 is disposed on the side of the second protective layer 42 away from the second reflection layer 32, the second interference reflection layer 52 is disposed on the side of the first interference reflection layer 51 away from the second protective layer 42, and the third interference reflection layer 53 is disposed on the side of the second interference reflection layer 52 away from the first interference reflection layer 51. The first and second interference reflection layers 52 are used to adjust the optical performance of the automotive glass, thereby improving the heat insulation effect, and the third interference reflection layer 53 is used to reflect infrared rays, thereby blocking heat.

[0033] In some embodiments, the material of the first interference reflection layer 51 is... The thickness of the first interference reflective layer 51 is 3 nanometers, and the material of the second interference reflective layer 52 is... The second interference reflective layer 52 has a thickness of 2 nanometers, and the third interference reflective layer 53 is made of... The thickness of the third interference reflective layer 53 is 2 nanometers. The first interference reflective layer 51 adjusts the optical properties of the automotive glass, the second interference reflective layer 52 adjusts the optical properties of the automotive glass, and the third interference reflective layer 53 reflects infrared light, thereby blocking heat.

[0034] Continue to combine with the appendix Figure 1 As shown, in some embodiments, the low-emissivity heat-insulating automotive glass protective film further includes a third protective layer 43, which is disposed on the side of the third interference-reflective layer 53 away from the second interference-reflective layer 52. The material of the third protective layer 43 is... The third protective layer 43 has a thickness of 2 nanometers. This third protective layer 43 protects the interference reflection layer, preventing it from being oxidized or eroded, thereby ensuring the heat insulation effect of the low-emissivity heat-insulating automotive glass protective film.

[0035] Continue to combine with the appendix Figure 1 As shown, in some embodiments, the low-emissivity heat-insulating automotive glass protective film further includes a fourth protective layer 44, which is disposed on the side of the third protective layer away from the third interference reflection layer. The material of the fourth protective layer 44 is... The fourth protective layer 44 has a thickness of 5 nanometers and is used to provide overall protection for the low-emissivity heat-insulating automotive glass protective film.

[0036] In some embodiments, an anti-ultraviolet coating and a self-healing coating are provided on the side of the fourth protective layer 44 away from the third protective layer 43 to enhance the protective capability of the low-emissivity heat-insulating automotive glass protective film and further improve the protective performance of the low-emissivity heat-insulating automotive glass protective film by reducing the heat entering the vehicle.

[0037] In summary, this utility model provides a low-emissivity heat-insulating automotive glass protective film. By utilizing TPU film as the substrate of the low-emissivity heat-insulating automotive glass protective film, the weather resistance and strength of the substrate are improved, while ensuring sufficient light transmittance. The light-transmitting layer enhances the light transmittance of the automotive glass, thereby ensuring the brightness inside the vehicle. The reflective layer reflects infrared rays, thereby blocking heat from entering the vehicle and reducing the temperature inside the vehicle. The interference reflective layer adjusts the optical properties of the automotive glass, thereby improving the heat insulation effect. The protective layer protects the light-transmitting layer, reflective layer, and interference reflective layer inside the low-emissivity heat-insulating automotive glass protective film.

[0038] The above embodiments are only for illustrating the technical concept and features of this utility model. Their purpose is to enable those skilled in the art to understand the content of this utility model and implement it. They cannot be used to limit the protection scope of this utility model. All equivalent changes or modifications made in accordance with the spirit and essence of this utility model should be covered within the protection scope of this utility model.

Claims

1. A low-emissivity, thermally- insulating, protective film for automotive glass, characterized in that, It includes a substrate, a light-transmitting layer, a reflective layer, and an interference-reflective layer. The substrate is made of TPU film. The light-transmitting layer is disposed on the surface of the substrate. The reflective layer is disposed on the side of the light-transmitting layer away from the substrate. The interference-reflective layer is disposed on the side of the reflective layer away from the light-transmitting layer.

2. The low-emissivity, thermally insulating, automotive glass protective film of claim 1, wherein, The light-transmitting layer includes a first light-transmitting layer and a second light-transmitting layer. The first light-transmitting layer is disposed on the surface of the substrate, and the second light-transmitting layer is disposed on the side of the first light-transmitting layer away from the substrate. The material of the first light-transmitting layer is... The thickness of the first light-transmitting layer is 3 nanometers, and the material of the second light-transmitting layer is... The thickness of the second light-transmitting layer is 5 nanometers.

3. The low-emissivity, thermally insulating, automotive glass protective film of claim 2, wherein, The reflective layer includes a first reflective layer and a second reflective layer. The first reflective layer is disposed on the side of the second light-transmitting layer away from the first light-transmitting layer, and the second reflective layer is disposed on the side of the first reflective layer away from the second light-transmitting layer. The first and second reflective layers are made of [material name missing]. The thickness of the first reflective layer is 5 nanometers, and the thickness of the second reflective layer is 3 nanometers.

4. The low-emissivity, thermally insulating, automotive glass protective film of claim 3, wherein, Further comprising a first protective layer, the first protective layer is disposed between the first reflective layer and the second reflective layer, the material of the first protective layer is , the thickness of the first protective layer is 5 nanometers.

5. The low-emissivity, thermally insulating, automotive glass protective film of claim 3, wherein, Further comprising a second protective layer, the second protective layer is disposed on the side of the second reflective layer away from the first reflective layer, the material of the second protective layer is , and the thickness of the second protective layer is 2 nanometers.

6. The low-emissivity, thermally insulating, automotive glass protective film of claim 5, wherein, The interference reflection layer includes a first interference reflection layer, a second interference reflection layer, and a third interference reflection layer. The first interference reflection layer is disposed on the side of the second protective layer away from the second reflection layer. The second interference reflection layer is disposed on the side of the first interference reflection layer away from the second protective layer. The third interference reflection layer is disposed on the side of the second interference reflection layer away from the first interference reflection layer.

7. The low-emissivity, thermally insulating, automotive glass protective film of claim 6, wherein, The material of the first interference reflection layer is The thickness of the first interference reflective layer is 3 nanometers, and the material of the second interference reflective layer is... The second interference reflective layer has a thickness of 2 nanometers, and the third interference reflective layer is made of... The thickness of the third interference reflective layer is 2 nanometers.

8. The low-emissivity, thermally insulating, automotive glass protective film of claim 6, wherein, A third protective layer is further included, which is arranged on the side of the third interference reflection layer away from the second interference reflection layer, and the material of the third protective layer is , and the thickness of the third protective layer is 2 nanometers.

9. The low-emissivity, thermally insulating, automotive glass protective film of claim 8, wherein, It also includes a fourth protective layer, which is disposed on the side of the third protective layer away from the third interference reflection layer, and the material of the fourth protective layer is... The thickness of the fourth protective layer is 5 nanometers.

Images