Yellowing-resistant car film with nano-silver antibacterial technology

Through a multi-layer coating structure, including a nano-silver antibacterial coating and a self-healing coating, the problems of insufficient antibacterial ability and easy aging and yellowing of car film are solved, achieving a highly efficient antibacterial and yellowing-resistant effect, and improving the service life and aesthetics of car film.

CN223737965UActive Publication Date: 2025-12-30YOULV YOUPIN (HANGZHOU) TECH CO LTD
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Patent Information

Application Number
CN202520094738.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-15
Publication Date
2025-12-30
Estimated Expiration
2035-01-15

AI Technical Summary

Technical Problem

Existing car window films have poor antibacterial properties, easily spread bacteria, lack self-healing ability, and are prone to yellowing due to ultraviolet aging, affecting their appearance.

Method used

It adopts a multi-layer coating structure, including a first nano-silver antibacterial coating, a self-healing coating, a nano-ceramic coating, and a second nano-silver antibacterial coating, combined with a hydrophobic and oleophobic layer and a magnesium fluoride coating, to improve antibacterial performance and resistance to yellowing.

Benefits of technology

It improves the antibacterial effect of car film, reduces the risk of cross-infection, enhances self-healing ability, prevents UV aging, and maintains aesthetics.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the related field of vehicle films, in particular to an anti-yellowing vehicle film with a nano-silver antibacterial technology, which comprises a vehicle film body, a first nano-silver antibacterial coating, a self-repairing coating, a nano ceramic coating, a second nano-silver antibacterial coating, a hydrophobic and oleophobic layer, a magnesium fluoride coating and the like. By arranging the first nano-silver antibacterial coating and the second nano-silver antibacterial coating, the antibacterial effect of the vehicle film is improved, the possibility that the vehicle film becomes a bacterial transmission medium is reduced, the risk of cross infection between passengers is reduced, the self-repairing capacity of the vehicle film is improved through the self-repairing coating made of polyurethane elastomer, and the service life of the vehicle film is prolonged. The automobile film has the advantages that the automobile film can be self-recovered after being slightly scratched, the overall service life of the automobile film can be prolonged, the attractiveness of the automobile film can be improved, the nanometer ceramic coating is arranged and has excellent weather resistance and ultraviolet resistance, ultraviolet penetration can be effectively blocked, the automobile film is prevented from aging and yellowing due to ultraviolet irradiation, and the attractiveness of the automobile film can be improved.
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Description

TECHNICAL FIELD

[0001] The utility model relates to the field related to car film especially to possess the car film of yellowing resistance of nanometer silver antibacterial technology. BACKGROUND

[0002] Car film, also known as car film or car heat insulation film, is a kind of film specially designed for pasting on car glass, which can effectively prevent the fragments of broken car glass from flying around and causing harm to the user, and the car film can effectively block the infrared rays in sunlight, reduce the temperature rise in the car, improve the riding comfort, and protect the car interior from ultraviolet damage and discoloration, and different color and light transmittance car films can change the appearance of the vehicle and improve the aesthetic sense of the vehicle.

[0003] The existing car film has poor antibacterial ability, and in the vehicle shared by many people, the car film with poor antibacterial performance may become a medium for bacterial transmission, increasing the risk of cross infection among passengers, and the existing car film has poor repairability, the car film is difficult to recover after being slightly scratched, which easily affects the appearance of the car film, and the existing car film is easily aged and yellowed by ultraviolet radiation, which also easily affects the appearance of the car film. SUMMARY

[0004] Therefore, in order to solve the above problems, the utility model provides a yellowing-resistant car film with nanometer silver antibacterial technology to solve the above technical problems.

[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme: a yellowing-resistant car film with nanometer silver antibacterial technology, comprising a car film body, the upper surface of the car film body is sequentially provided with a first nanometer silver antibacterial coating, a self-repairing coating, a nanometer ceramic coating and a second nanometer silver antibacterial coating from bottom to top.

[0006] The lower surface of the car film body is coated with a magnesium fluoride coating.

[0007] Preferably, the material of the self-repairing coating is polyurethane elastomer.

[0008] Preferably, the nanometer ceramic coating is embedded with a plurality of zinc oxide particles.

[0009] Preferably, the upper surface of the second nanometer silver antibacterial coating is coated with a hydrophobic and oleophobic layer.

[0010] Preferably, the material of the hydrophobic and oleophobic layer is tetrafluoroethylene.

[0011] Preferably, the thickness of the first nanometer silver antibacterial coating and the second nanometer silver antibacterial coating is 20nm-50nm.

[0012] The utility model has the advantages that:

[0013] The first nano-silver antibacterial coating and the second nano-silver antibacterial coating improve the antibacterial effect of the car film, reduce the possibility that the car film becomes a bacterial transmission medium, reduce the risk of cross infection between passengers, the self-repairing coating made of polyurethane elastomer improves the self-repairing capability of the car film, the car film can be self-recovered after slight scratches, the overall service life and the aesthetic degree of the car film are prolonged, the nano-ceramic coating is arranged, the nano-ceramic coating has excellent weather resistance and ultraviolet resistance, can effectively block ultraviolet penetration, prevents the car film from aging and yellowing due to ultraviolet irradiation, and is favorable for improving the aesthetic property of the car film. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 is a structural schematic view of the utility model;

[0015] Figure 2 is a schematic view of the internal structure of the nano-ceramic coating of the utility model.

[0016] Among them: car film body-1, first nano-silver antibacterial coating-2, self-repairing coating-3, nano-ceramic coating-4, second nano-silver antibacterial coating-5, hydrophobic and oleophobic layer-6, magnesium fluoride coating-7, zinc oxide particles-8. DETAILED DESCRIPTION

[0017] In order to further explain the technical scheme of the utility model, the following specific embodiments are described in detail.

[0018] As shown in Figure 1 The utility model provides a yellowing resistant car film with nano-silver antibacterial technology, including car film body 1;

[0019] As shown in Figure 1 And Figure 2 In the embodiment, the upper surface of the car film body 1 is coated with the first nano-silver antibacterial coating 2, the self-repairing coating 3, the nano-ceramic coating 4 and the second nano-silver antibacterial coating 5 from bottom to top;

[0020] The lower surface of the car film body 1 is coated with the magnesium fluoride coating 7, the magnesium fluoride coating 7 improves the anti-glare performance of the car film, and the safety during driving is improved;

[0021] In the embodiment, the self-repairing coating 3 is made of polyurethane elastomer, and the self-repairing capability is strong, so that the car film is difficult to recover after slight scratches, and the aesthetic property of the car film is improved;

[0022] In the embodiment, the nano-ceramic coating 4 is embedded with a plurality of zinc oxide particles 8, the zinc oxide particles 8 can effectively block ultraviolet penetration, protect the coating from ultraviolet damage, and further prevent the car film from yellowing;

[0023] The upper surface of the second nano-silver antibacterial coating 5 in the embodiment is coated with a hydrophobic and oleophobic layer 6, which can reduce the adhesion of dirt and water droplets on the surface of the film, thereby indirectly reducing the breeding environment of bacteria and viruses, thereby indirectly improving the antibacterial effect of the film;

[0024] The material of the hydrophobic and oleophobic layer 6 in the embodiment is tetrafluoroethylene, which has good weather resistance and chemical stability, is suitable for outdoor use, and has good compatibility with many substrates, which is conducive to improving the stability of the film.

[0025] The thickness of the first nano-silver antibacterial coating 2 and the second nano-silver antibacterial coating 5 in the embodiment is 30nm-40nm, which is moderate, can better improve the antibacterial performance of the film, and can also better control the production cost.

[0026] Specifically, in use, the first nano-silver antibacterial coating 2 and the second nano-silver antibacterial coating 5 can further improve the antibacterial effect of the film, and the multiple antibacterial layers are also conducive to improving the durability of the film. The nano-ceramic coating 4 can effectively block ultraviolet rays, reduce the aging and yellowing of the film due to ultraviolet radiation, and the zinc oxide particles 8 can effectively block ultraviolet rays from penetrating, protect the coating from ultraviolet damage, and prevent the film from yellowing, thereby improving the yellowing resistance of the film.

[0027] The above is only a preferred example of the present application and is not intended to limit the present application. Although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modification, equivalent substitution, improvement, etc. made within the spirit and principles of the present application shall be included within the scope of protection of the present application.

Claims

1. A yellowing-resistant car film with nano-silver antibacterial technology, comprising a car film body; characterized in that a first nano-silver antibacterial coating, a self-repairing coating, a nano-ceramic coating and a second nano-silver antibacterial coating are sequentially arranged on the upper surface of the car film body from bottom to top; a magnesium fluoride coating is coated on the lower surface of the car film body.

2. The anti-yellowing car film with nano-silver antibacterial technology according to claim 1, characterized in that: The self-repairing coating is made of polyurethane elastomer.

3. The anti-yellowing car film with nano-silver antibacterial technology according to claim 1, characterized in that: The nano-ceramic coating is embedded with a plurality of zinc oxide particles.

4. The anti-yellowing car film with nano-silver antibacterial technology according to claim 1, characterized in that: A hydrophobic and oleophobic layer is coated on the upper surface of the second nano-silver antibacterial coating.

5. The anti-yellowing car film with nano-silver antibacterial technology according to claim 4, characterized in that: The hydrophobic and oleophobic layer is made of tetrafluoroethylene.

6. The anti-yellowing car film with nano-silver antibacterial technology according to claim 1, characterized in that: The thickness of the first nano-silver antibacterial coating and the second nano-silver antibacterial coating is 20nm-50nm.