Anti-ultraviolet polyester film

Abstract

The utility model relates to the technical field of polyester films, and discloses an uvioresistant polyester film which comprises a polyester film body, a metal framework is arranged at the top end of the polyester film body, a protective layer is arranged at the top end of the inner wall of the polyester film body, an antistatic layer is arranged at the bottom end of the protective layer, and an absorption layer is arranged at the bottom end of the antistatic layer. The bottom end of the absorbing layer is provided with the reflecting layer, the bottom end of the reflecting layer is provided with the blocking layer, the bottom end of the blocking layer is provided with the reinforcing layer, the bottom end of the reinforcing layer is provided with the bonding layer, and the bonding layer is arranged at the bottom end of the inner wall of the polyester film body. According to the anti-ultraviolet polyester film, the polyester film has more excellent anti-ultraviolet performance, the aging and cracking speed is slowed down, a product can keep stable performance for a long time, the service life is prolonged, the bendable metal framework is arranged on the outer wall of the metal film, and the overall anti-stretching and anti-compression performance of the polyester film can be enhanced.

Description

TECHNICAL FIELD

[0001] The utility model relates to polyester film technical field especially relates to a kind of polyester film of ultraviolet resistance. BACKGROUND

[0002] Polyester film is a kind of comprehensive performance more packaging film, and its mechanical properties are excellent: rigidity, hardness and toughness are high, puncture resistance, friction resistance, temperature adaptability is good: high temperature and low temperature resistance, can be used in relatively wide temperature range, chemical stability is strong: chemical resistance, oil resistance, air tightness and good aroma retention, barrier property is better: it is one of commonly used barrier composite film base materials, can be used to manufacture wire and cable insulation film, touch switch insulation film, capacitor film etc., can be used for the packaging of food, medicine, industrial products and cosmetics, can be used for building exterior wall decoration, can be used in printing industry.

[0003] At present, a layer of polyester film is often covered on the surface of object as protective layer, but some objects need to be exposed to sunlight for a long time, since the current polyester film does not have good ultraviolet resistance, the polyester film is prone to aging and cracking after being irradiated by sunlight for a long time.

[0004] To solve the technical problem of poor ultraviolet resistance of the existing polyester film, the present application provides a kind of polyester film of ultraviolet resistance. CONTENT OF UTILITY MODEL

[0005] The utility model aims at solving the shortcomings in the prior art, and provides a kind of polyester film of ultraviolet resistance, and the polyester film has better ultraviolet resistance and can be exposed to sunlight for a long time.

[0006] To achieve the above object, the utility model provides the following technical scheme:

[0007] A kind of polyester film of ultraviolet resistance, including polyester film body, the top of the polyester film body is provided with metal framework, the top of the inner wall of the polyester film body is provided with protective layer, the bottom of the protective layer is provided with antistatic layer, the bottom of the antistatic layer is provided with absorption layer, the bottom of the absorption layer is provided with reflection layer, the bottom of the reflection layer is provided with barrier layer, the bottom of the barrier layer is provided with reinforcing layer, the bottom of the reinforcing layer is provided with adhesive layer, the adhesive layer is arranged at the bottom of the inner wall of the polyester film body.

[0008] Further, the inner wall of the absorption layer is provided with shortwave ultraviolet absorption sublayer on the upside, and the inner wall of the absorption layer is provided with longwave ultraviolet absorption sublayer on the downside.

[0009] Further, the inner wall of the reflection layer is provided with near reflection sublayer on the upside, and the inner wall of the reflection layer is provided with outer layer reflection sublayer on the downside.

[0010] Further, the short-wave ultraviolet absorbing sub-layer is made of a hydroxyphenyl triazine ultraviolet absorber, and the long-wave ultraviolet absorbing sub-layer is made of a benzophenone ultraviolet absorber.

[0011] Further, the near-reflective sub-layer is made of nano zinc oxide as raw material, and the outer reflective sub-layer is made of titanium dioxide as raw material.

[0012] Further, the metal framework is made of light-weight stainless steel material, is light in weight and can be bent, and the protective layer is made of polyester acid ester as raw material.

[0013] Further, the antistatic layer is made of an antistatic agent and polyester resin, the absorbing layer is made of an ultraviolet absorber, and the reflective layer is made of a metal oxide material.

[0014] Further, the barrier layer is made of ethylene-vinyl alcohol polymer as raw material, the reinforcing layer is made of glass fiber reinforced polyester material, and the bonding layer is made of acrylic adhesive.

[0015] The utility model has the advantages of the following beneficial effects:

[0016] 1. In the utility model, the material planning setting is carried out in the polyester film again, the polyester film has more excellent ultraviolet resistance, can effectively resist the damage of ultraviolet to the molecular structure, slows down the speed of aging and cracking, so that the product can keep stable performance for a long time, prolongs the service life, and can better protect the internal articles wrapped by the polyester film.

[0017] 2. In the utility model, the bendable metal framework is arranged on the outer wall of the metal film, the tensile and compression resistance of the whole polyester film can be enhanced, the polyester film can be effectively prevented from excessive shaking or distortion when meeting external forces such as vibration, impact and wind blowing, the wear and tear and tearing of the polyester film due to frequent stress are reduced, and the service life is prolonged. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 A three-dimensional view of the ultraviolet-resistant polyester film is provided for the utility model;

[0019] Figure 2 A polyester film body sectional view of the ultraviolet-resistant polyester film is provided for the utility model;

[0020] Figure 3 A structure diagram of each layer of the polyester film of the ultraviolet-resistant polyester film is provided for the utility model;

[0021] Figure 4 An absorbing layer structure diagram of the ultraviolet-resistant polyester film is provided for the utility model;

[0022] Figure 5 The utility model provides an anti ultraviolet's polyester film's reflection layer structure drawing.

[0023] Legend:

[0024] 1, polyester film body;2, metal framework;3, protective layer;4, antistatic layer;5, absorption layer;6, reflection layer;7, barrier layer;8, reinforcing layer;9, bonding layer;10, short wave ultraviolet absorption sublayer;11, long wave ultraviolet absorption sublayer;12, near reflection sublayer;13, outer layer reflection sublayer. Specific implementation

[0025] The technical scheme in the embodiments of the utility model will be apparently and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor belong to the protection scope of the utility model.

[0026] Reference Figures 1-3 An embodiment provided by the utility model: an anti ultraviolet's polyester film, including polyester film body 1, the inner wall top of polyester film body 1 is provided with protective layer 3, the bottom of protective layer 3 is provided with antistatic layer 4, the bottom of antistatic layer 4 is provided with absorption layer 5, the bottom of absorption layer 5 is provided with reflection layer 6, the bottom of reflection layer 6 is provided with barrier layer 7, the bottom of barrier layer 7 is provided with reinforcing layer 8, the bottom of reinforcing layer 8 is provided with bonding layer 9, bonding layer 9 is arranged at the inner wall bottom of polyester film body 1, antistatic layer 4 is formed by the blending of antistatic agent and polyester resin, absorption layer 5 is made of ultraviolet absorber, reflection layer 6 is made of metal oxide material, barrier layer 7 is made of ethylene-vinyl alcohol polymer as raw material, reinforcing layer 8 is made of glass fiber reinforced polyester material, and bonding layer 9 is made of acrylate adhesive.

[0027] Specifically, the material of the protective layer 3 is polycarbonate, which has good wear resistance, impact resistance and weather resistance, and can effectively resist scratches from external objects and resist chemical erosion to a certain extent, thereby protecting the underlying structure. The antistatic layer 4 is made of an antistatic agent blended with polyester resin, which can increase the conductivity of the material and allow the charge to be discharged in time, thereby avoiding static accumulation. The absorption layer 5 contains ultraviolet absorbers, which can strongly absorb various wavelengths of ultraviolet rays in the ultraviolet spectrum and convert the ultraviolet energy into harmless heat energy to dissipate. The reflective layer 6 is a metal oxide material that has good reflection of ultraviolet rays at the nanoscale and can reflect ultraviolet rays. It also has good chemical stability and photocatalytic activity, which can help to decompose organic matter on the surface of the film to a certain extent. The barrier layer 7 is an ethylene-vinyl alcohol copolymer that has excellent gas barrier properties and can effectively prevent the penetration of gas molecules such as oxygen and water vapor, thereby preventing the interaction between the internal components of the film and the external environment and maintaining the stability of the film. The reinforcing layer 8 is a glass fiber reinforced polyester material that has high strength and modulus, which can significantly improve the tensile strength and tear resistance of the film, making it less likely to deform and damage when subjected to external forces. The adhesive layer 9 is an acrylic adhesive that has good adhesion properties and can firmly adhere the film to the surface of the object to be protected. It also has good flexibility, which can adapt to different shapes and surface roughness of objects and has good adhesion to a variety of materials.

[0028] With reference to Figure 1 , Figure 4 and Figure 5 , the polyester film body 1 is provided with a metal framework 2 at the top end, the inner wall of the absorption layer 5 is provided with a short-wave ultraviolet light absorption sub-layer 10 on the upper side, the inner wall of the absorption layer 5 is provided with a long-wave ultraviolet light absorption sub-layer 11 on the lower side, the inner wall of the reflective layer 6 is provided with a near-reflective sub-layer 12 on the upper side, and the inner wall of the reflective layer 6 is provided with an outer reflective sub-layer 13 on the lower side. The short-wave ultraviolet light absorption sub-layer 10 is made of a hydroxyphenyl triazine ultraviolet absorber, the long-wave ultraviolet light absorption sub-layer 11 is made of a benzophenone ultraviolet absorber, the near-reflective sub-layer 12 is made of nano-zinc oxide as the raw material, the outer reflective sub-layer 13 is made of titanium dioxide as the raw material, the metal framework 2 is made of lightweight stainless steel material, which is light in weight and can be bent, and the protective layer 3 is made of polyester acid ester as the raw material.

[0029] Specifically, the metal skeleton 2 can enhance the overall tensile and compressive properties of the polyester film, the short-wave ultraviolet light absorbing sublayer 10 uses a hydroxyphenyl triazine ultraviolet light absorber, which has good absorption capacity for UV-B band ultraviolet light with a wavelength of 280-320 nm. The UV-B band ultraviolet light has relatively high energy and has a relatively obvious destructive effect on materials, such as causing materials to fade and age, etc. The short-wave ultraviolet light absorbing sublayer 10 mainly absorbs UV-B band ultraviolet light and releases its energy in the form of harmless heat energy, thereby preventing the short-wave ultraviolet light from penetrating into the inside of the film and protecting the underlying structure and the protected object from its harm. The long-wave ultraviolet light absorbing sublayer 11 uses a benzophenone ultraviolet light absorber, which has good absorption effect on UV-A band ultraviolet light with a wavelength of 320-400 nm. Although the UV-A band ultraviolet light has relatively low energy, it accounts for most of the ultraviolet light reaching the earth's surface and can penetrate through clouds and glass. The long-wave ultraviolet light absorbing sublayer 11 focuses on absorbing UV-A ultraviolet light to prevent slow aging and yellowing of materials caused by long-wave ultraviolet light. The near-reflective sublayer 12 is nano zinc oxide, which has good reflective properties in the ultraviolet light band and also has certain photocatalytic activity. The outer reflective sublayer 13 is titanium dioxide, which has high refractive index and good chemical stability.

[0030] Working principle: The protective layer 3 mainly provides physical protection, which can resist direct scratching, wear and tear and a certain degree of impact of external objects, prevent the surface of the film from being damaged, and the antistatic layer 4 can effectively eliminate the accumulation of static electricity on the surface of the film caused by friction, etc., thereby reducing the damage risk of static electricity to electronic components and other products. The core function of the absorbing layer 5 is to absorb ultraviolet light, mainly absorbing UV-A and UV-B bands in ultraviolet light, thereby effectively reducing the transmittance of ultraviolet light and providing ultraviolet light protection for the underlying structure and the protected object. The reflective layer 6 mainly reflects ultraviolet light and cooperates with the absorbing layer 5 to enhance the effect of resisting ultraviolet light. By reflecting part of the ultraviolet light, the amount of ultraviolet light penetrating the film is further reduced. The barrier layer 7 is used to block the penetration of external gases, moisture and other substances. It can prevent oxygen, water vapor and other substances from reacting with the internal components of the film, thereby enhancing the mechanical properties of the film. The purpose of the reinforcing layer 8 is to enhance the mechanical properties of the film, which can improve the tensile strength, tear resistance and other indicators of the film, and maintain the overall structural integrity of the film. The main function of the adhesive layer 9 is to enable the film to be firmly attached to the surface of the protected object. It can adapt to objects of different shapes and materials, ensure the close connection between the film and the object, and prevent the film from being warped or detached during use.

[0031] Finally, it should be noted that: the above only for the preferred embodiments of the present application, and is not intended to limit the present application, although the foregoing embodiments of the present application has been described in detail, for the skilled in the art, it still can be modified, or for part of the technical features of the equivalent replacement, the spirit and principles of the present application, made any modification, equivalent replacement, improvement, etc., should be included within the scope of the present application.

Claims

1. An ultraviolet resistant polyester film, characterized by, The application relates to a polyester film body (1) provided with a metal framework (2) at the top end, a protective layer (3) arranged at the top end of the inner wall of the polyester film body (1), an antistatic layer (4) arranged at the bottom end of the protective layer (3), an absorbing layer (5) arranged at the bottom end of the antistatic layer (4), a reflecting layer (6) arranged at the bottom end of the absorbing layer (5), a barrier layer (7) arranged at the bottom end of the reflecting layer (6), a reinforcing layer (8) arranged at the bottom end of the barrier layer (7), a bonding layer (9) arranged at the bottom end of the reinforcing layer (8), and the bonding layer (9) is arranged at the bottom end of the inner wall of the polyester film body (1).

2. The ultraviolet resistant polyester film according to claim 1, characterized by: The inner wall of the absorbing layer (5) is provided with a short-wave ultraviolet light absorbing sublayer (10) on the upper side, and is provided with a long-wave ultraviolet light absorbing sublayer (11) on the lower side.

3. The ultraviolet resistant polyester film according to claim 1, wherein: The inner wall of the reflecting layer (6) is provided with a near-reflecting sublayer (12) on the upper side, and is provided with an outer reflecting sublayer (13) on the lower side.

4. The ultraviolet resistant polyester film according to claim 2, wherein: The short-wave ultraviolet light absorbing sublayer (10) is made of a hydroxyphenyl triazine ultraviolet light absorbing agent, and the long-wave ultraviolet light absorbing sublayer (11) is made of a benzophenone ultraviolet light absorbing agent.

5. The ultraviolet resistant polyester film according to claim 3, wherein: The near-reflecting sublayer (12) is made of nano-zinc oxide as raw material, and the outer reflecting sublayer (13) is made of titanium dioxide as raw material.

6. The ultraviolet resistant polyester film according to claim 1, wherein: The metal framework (2) is made of light-weight stainless steel material, is light in weight and can be bent, and the protective layer (3) is made of polyester acid ester as raw material.

7. The ultraviolet resistant polyester film according to claim 1, wherein: The antistatic layer (4) is made by blending an antistatic agent and polyester resin, the absorbing layer (5) is made of an ultraviolet light absorbing agent, and the reflecting layer (6) is made of a metal oxide material.

8. The ultraviolet resistant polyester film according to claim 1, wherein: The barrier layer (7) is made of ethylene-vinyl alcohol polymer as raw material, the reinforcing layer (8) is made of glass fiber reinforced polyester material, and the bonding layer (9) is made of acrylic adhesive.

Images