Weather-proof high solar thermal energy reflection fabric

Abstract

The utility model discloses a weather-proof high solar thermal energy reflection fabric in the field of textile fabrics, which comprises a light reflection fabric layer, the upper surface of the light reflection fabric layer is provided with a PVF uvioresistant layer, and the PVF uvioresistant layer is bonded with the light reflection fabric layer through a transparent glue layer; a release paper layer is arranged on the lower surface of the light reflection fabric layer, and the release paper layer is bonded with the light reflection fabric layer through a light reflection glue layer; the light reflection fabric layer is used for reflecting light, the PVF anti-ultraviolet layer is used for blocking ultraviolet rays, and the release paper layer is used for keeping the viscidity of the light reflection glue layer, so that the light reflection glue layer can be conveniently adhered to the surface of an object needing to reflect solar thermal energy. According to the high-light-reflection fabric, the problem that an existing high-light-reflection fabric is poor in weather resistance is solved, the light-reflection fabric layer can be well protected, the weather resistance of the light-reflection fabric layer can be improved, the service life of the light-reflection fabric layer is prolonged, and the light-reflection fabric layer can be applied to more complex climate scenes.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of textile fabric, specifically, it relates to a weather-resistant high solar heat energy reflection fabric. BACKGROUND

[0002] In outdoor environment, especially in the scene of high solar radiation, such as building, warehouse, playground and so on, these places not only directly bear the invasion of strong ultraviolet rays, but also need to cope with the extremely high temperature generated thereby, so that the temperature of these places rises sharply, and more reflection of sunlight is needed to achieve the effect of heat shielding and cooling.

[0003] At present, there are high light reflection fabrics on the market, mainly some special non-woven fabrics, so that the light reflectivity is more than 90%, however, the weather resistance of these high light reflection fabrics is poor, when these fabrics are exposed to outdoor environment with wind and rain, sunshine and moonlight, they are often prone to aging, resulting in a decrease in reflection efficiency, so that these high light reflection fabrics can only be used for less than 3 months outdoors, and the service life is short, which cannot meet the actual demand.

[0004] The above defects need to be solved. INVENTION CONTENTS

[0005] In order to solve the problem of poor weather resistance of the existing high light reflection fabric, the utility model provides a weather-resistant high solar heat energy reflection fabric.

[0006] The technical scheme of the utility model is as follows:

[0007] A weather-resistant high solar heat energy reflection fabric, comprising a light reflection fabric layer, the upper surface of the light reflection fabric layer is provided with a PVF ultraviolet resistant layer, the PVF ultraviolet resistant layer is bonded with the light reflection fabric layer through a transparent glue layer;

[0008] The lower surface of the light reflection fabric layer is provided with a release paper layer, and the release paper layer is bonded with the light reflection fabric layer through a light reflection glue layer;

[0009] The light reflection fabric layer is used for reflecting light, the PVF ultraviolet resistant layer is used for blocking ultraviolet rays, and the release paper layer is used for maintaining the adhesion of the light reflection glue layer, so as to be pasted on the surface of the object that needs to reflect solar heat energy.

[0010] According to the utility model of the above-mentioned scheme, the light reflection fabric layer is an HDPE flash non-woven fabric.

[0011] According to the utility model of the above-mentioned scheme, the square gram weight of the light reflection fabric layer is 68g / m2.

[0012] According to the utility model of the above-mentioned scheme, the thickness of the light reflection fabric layer is 0.2mm.

[0013] According to the utility model, the diameter of the HDPE fiber in the HDPE flash non-woven fabric is 200nm-10000nm.

[0014] According to the utility model, the square gram weight of the PVF ultraviolet resistant layer is 35g / m 2.

[0015] According to the utility model, the thickness of the PVF ultraviolet resistant layer is 12.5mu m.

[0016] According to the utility model, the light reflection fabric layer is PLA electrostatic spinning non-woven fabric.

[0017] According to the utility model, the diameter of the PLA fiber in the PLA electrostatic spinning non-woven fabric is 1.4mu m, and the thickness of the PLA electrostatic spinning non-woven fabric is 0.16mm.

[0018] According to the utility model, the light reflection glue layer is filled with titanium dioxide.

[0019] The utility model has the advantages of the following:

[0020] The upper surface of the light reflection fabric layer is provided with a PVF ultraviolet resistant layer, the PVF ultraviolet resistant layer has high weather resistance and ultraviolet resistance, can have excellent protection for the light reflection fabric layer, improve the weather resistance of the light reflection fabric layer, prolong the service life of the light reflection fabric layer, and make the light reflection fabric layer can be applied to more complex climate scenes.

[0021] In addition, the lower surface of the light reflection fabric layer is provided with a release paper layer, the release paper layer is used for keeping the adhesion of the light reflection glue layer, so as to be pasted on the surface of the object needing to reflect solar heat energy, and the convenience and flexibility of fabric use are increased. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 It is the structural schematic diagram of the utility model embodiment one;

[0023] Figure 2 It is the structural schematic diagram of the utility model embodiment two.

[0024] In the drawing, 1, PVF ultraviolet resistant layer;2, transparent glue layer;3, light reflection fabric layer;4, light reflection glue layer;5, release paper layer. DETAILED DESCRIPTION

[0025] For better understanding of the purpose, technical scheme and technical effect of the present application, the present application will be further explained in connection with the drawings and examples. It should be noted that similar reference numerals and letters represent similar items in the following drawings, therefore, once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings. Meanwhile, it is declared that the following described examples are only for explaining the present application, and do not limit the present application.

[0026] It should be noted that when an element is referred to as being "fixed" or "disposed" on another element, it can be directly on the other element or there can be an intervening element, and when an element is referred to as being "connected" to another element, it can be directly connected to the other element or there can be an intervening element.

[0027] The indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship commonly used when the product of the application is used, or the orientation or positional relationship commonly understood by those skilled in the art, or the orientation or positional relationship commonly used when the product of the application is used, which is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0028] In outdoor extreme environments, especially in the case of high-intensity solar radiation, such as building exterior walls, warehouse roofs, outdoor stadiums, etc., these areas are not only continuously exposed to the fierce attack of ultraviolet rays, but also rapidly heated by direct sunlight, and efficient solar heat reflection measures are urgently needed to achieve effective shading and cooling effects. There is a kind of high light reflective fabric on the market, which can achieve a light reflectivity of more than 90%, thereby significantly reducing heat absorption. However, this kind of high light reflective fabric is poor in weather resistance, and its performance often deteriorates rapidly in outdoor environments, subjected to wind and rain erosion, day and night temperature difference and long-term sunlight, resulting in a significant decrease in reflection efficiency, thereby making the actual service life of these fabrics in outdoor environments often limited to three months, far from meeting the needs of long-term and stable use.

[0029] Example one

[0030] As Figure 1As shown in the figure, in order to solve the above technical problems, the utility model provides a kind of weather-resistant high solar thermal energy reflecting fabric, including light reflecting fabric layer 3, the upper surface of light reflecting fabric layer 3 is provided with PVF ultraviolet resistance layer 1, PVF ultraviolet resistance layer 1 is adhered with light reflecting fabric layer 3 by transparent glue layer 2, the lower surface of light reflecting fabric layer 3 is provided with release paper layer 5, release paper layer 5 is adhered with light reflecting fabric layer 3 by light reflecting glue layer 4, increase the convenience and flexibility of fabric use.PVF ultraviolet resistance layer 1 has very high weather resistance, ultraviolet resistance, can effectively block the penetration of ultraviolet rays, can have excellent protective property to light reflecting fabric layer 3, reduce light reflecting fabric layer 3 and age, fade or performance decline due to long-term exposure to sunlight, improve the weather resistance of light reflecting fabric layer 3, prolong the service life of light reflecting fabric layer 3, so that light reflecting fabric layer 3 can be applied in more complex climate scene.

[0031] It should be noted that PVF ultraviolet resistance layer 1 has very high weather resistance, ultraviolet resistance is prior art, the utility model also does not improve, so the principle is not described in detail.

[0032] As shown in the figure, Figure 1 Specifically, weather-resistant high solar thermal energy reflecting fabric has five layers, from outside to inside in turn PVF ultraviolet resistance layer 1, transparent glue layer 2, light reflecting fabric layer 3, light reflecting glue layer 4, release paper layer 5.PVF ultraviolet resistance layer 1 plays the role of waterproof, sunscreen and anti-aging, can block ultraviolet rays, prevent light reflecting fabric layer 3, transparent glue layer 2 and light reflecting glue layer 4 from aging, ensure the long-term stability and durability of the whole fabric;Transparent glue layer 2 mainly plays the role of bonding PVF ultraviolet resistance layer 1 and light reflecting fabric layer 3, at the same time, transparent glue layer 2 is transparent, so transparent glue layer 2 can reduce the attenuation of light reflecting fabric layer 3, so as to ensure that the effect of light reflecting fabric layer 3 reflecting light is not affected;Light reflecting fabric layer 3 is used for reflecting light, can scatter the heat energy in sunlight in the form of reflection, significantly reduce the temperature of the surface of the object needing to reflect solar thermal energy;Light reflecting glue layer 4 mainly plays the role of bonding light reflecting fabric layer 3 and release paper layer 5, at the same time, reflecting part of the light penetrating light reflecting fabric layer 3, further enhances the thermal energy reflecting effect of the fabric, and plays a certain shielding role for the color of the object needing to reflect solar thermal energy;Release paper layer 5 is used to maintain the tackiness of light reflecting glue layer 4, avoid the tackiness reduction caused by accidental contact during transportation and storage, so as to be convenient for pasting on the surface of the object needing to reflect solar thermal energy, increase the convenience and flexibility of fabric use, make it applicable to more diversified application scenarios.In use, release paper layer 5 can be torn off, and light reflecting glue layer 4 is pasted on the surface of the object needing to reflect solar thermal energy, when the surface of the object is irradiated by the sun, the heat energy of sunlight can be effectively reflected, the temperature inside the object needing to reflect solar thermal energy is reduced.

[0033] In this embodiment, the light-reflecting fabric layer 3 is an HDPE (high-density polyethylene) flash non-woven fabric. During production, the HDPE particles are rapidly melted and stretched into fibers under high temperature and pressure, and then treated by a special process to form a non-woven fabric structure. In addition, the diameter of the HDPE fibers in the HDPE flash non-woven fabric is 200-10,000 nm, which can be designed to be any value within the intervals of 200 nm, 300 nm, 400 nm, 500 nm, 600 nm, 700 nm, 800 nm, 900 nm, and 1,000 nm. In actual design, the diameter of the HDPE fibers in the HDPE flash non-woven fabric can be designed according to actual needs.

[0034] In this embodiment, the square gram weight of the light-reflecting fabric layer 3 is 68 g / m2, which ensures the lightness and portability of the fabric while ensuring sufficient strength and durability. The thickness of the light-reflecting fabric layer 3 is 0.2 mm, which allows the fabric to maintain high efficiency while not being too bulky or occupying too much space when reflecting solar heat energy. Of course, in actual design, the square gram weight and thickness of the light-reflecting fabric layer 3 can be designed according to actual needs.

[0035] In this embodiment, the square gram weight of the PVF ultraviolet-resistant layer 1 is 35 g / m2, which can better resist the erosion of the external environment, especially the strong radiation of ultraviolet rays. In addition, the thickness of the PVF ultraviolet-resistant layer 1 is 12.5 μm, which effectively blocks the penetration of ultraviolet rays, thereby protecting the light-reflecting fabric layer 3. Of course, in actual design, the square gram weight and thickness of the PVF ultraviolet-resistant layer 1 can be designed according to actual needs.

[0036] In this embodiment, the square gram weight of the transparent glue layer 2 is 5 g / m2, which ensures that the glue layer is not too thick and heavy, affecting the lightness of the overall fabric, and provides sufficient adhesion to ensure the close fit between the light-reflecting fabric layer 3 and the PVF ultraviolet-resistant layer 1, avoiding delamination or peeling during use. Of course, in actual design, the square gram weight of the transparent glue layer 2 can be designed according to actual needs. In addition, the transparent glue layer 2 is transparent polyester (PE) glue, which can ensure that the light transmittance of the material is not changed during bonding, so that the overall material maintains high-efficiency light-reflecting performance. At the same time, the transparent polyester glue can effectively resist the erosion of ultraviolet rays and chemical substances, thereby prolonging the service life of the material. Of course, in actual design, the material of the transparent glue layer 2 can be designed according to actual needs.

[0037] In the embodiment, the square gram weight of the light-reflecting glue layer 4 is 20 g / m2, and of course, in actual design, the square gram weight of the light-reflecting glue layer 4 can be designed according to actual needs. In addition, the light-reflecting glue layer 4 is filled with titanium dioxide, and the solid content of the titanium dioxide accounts for more than 40%. When light irradiates the surface of the fabric, the titanium dioxide can reflect the light back, further improving the light reflectivity of the fabric, helping to reduce the absorption of solar thermal energy and reduce the temperature of the surface of the fabric. At the same time, since the titanium dioxide has excellent shielding performance, it can prevent the color of the adherend surface from penetrating to the surface of the fabric, affecting the appearance. In addition, the light-reflecting glue layer 4 is white polyurethane glue, which has a certain elasticity and can make the fabric closely fit the uneven surface. Of course, in actual design, the material of the light-reflecting glue layer 4 can be designed according to actual needs.

[0038] The production process of the weather-resistant high-solar-thermal-energy-reflecting fabric is as follows:

[0039] First, a transparent glue layer 2 is coated on the upper surface of the light-reflecting fabric layer 3, and the coating amount is 5 g / m2. Then, the PVF anti-ultraviolet layer 1 is pasted on the upper surface of the light-reflecting fabric layer 3, and then dried, with a drying temperature of 120°C and a drying time of 30S.

[0040] Then, a light-reflecting glue layer 4 is coated on the lower surface of the light-reflecting fabric layer 3, and the coating amount is 20 g / m2. Finally, the release paper layer 5 is attached, and then dried, with a drying temperature of 65°C and a drying time of 60S.

[0041] Example Two

[0042] As shown in Figure 2 different from example one, the light-reflecting fabric layer 3 of the embodiment is a PLA (polylactic acid) electrospun non-woven fabric. The diameter of the PLA fiber in the PLA electrospun non-woven fabric is 1.4 μm, which is conducive to the reflection of light on the surface of the fabric, thereby enhancing the light-reflecting performance of the fabric. Of course, in actual design, the diameter of the PLA fiber in the PLA electrospun non-woven fabric can be designed according to actual needs. In addition, the thickness of the PLA electrospun non-woven fabric is 0.16 mm, and of course, in actual design, the thickness of the PLA electrospun non-woven fabric can be designed according to actual needs.

[0043] It should be understood that those skilled in the art can make improvements or changes according to the above description, and all these improvements and changes shall belong to the protection scope of the appended claims of the utility model.

[0044] The utility model discloses has been described exemplarily above in combination with the drawing, obviously the implementation of the utility model patent is not limited by above-mentioned mode, as long as the various improvements of the method concept and technical scheme of the utility model patent are adopted, or the concept and technical scheme of the utility model patent are directly applied to other occasions without improvement, all are within the protection scope of the utility model.

Claims

1. A weather resistant, high solar heat energy reflective fabric, characterized in that, The light reflection fabric layer is provided with a PVF anti-ultraviolet layer on its upper surface, and the PVF anti-ultraviolet layer is adhered to the light reflection fabric layer through a transparent glue layer; The lower surface of the light reflection fabric layer is provided with a release paper layer, and the release paper layer is adhered to the light reflection fabric layer through a light reflection glue layer; The light reflection fabric layer is used for reflecting light, the PVF anti-ultraviolet layer is used for blocking ultraviolet rays, and the release paper layer is used for maintaining the viscosity of the light reflection glue layer so as to be pasted on the surface of an object which needs to reflect solar thermal energy.

2. The weatherable, high solar thermal energy reflective fabric of claim 1, wherein, The light reflection fabric layer is an HDPE flash non-woven fabric.

3. The weatherable, high solar energy reflective fabric of claim 2, wherein, The square gram weight of the light reflection fabric layer is 68 g / m2.

4. The weatherable, high solar thermal energy reflective fabric of claim 2, wherein, The thickness of the light reflection fabric layer is 0.2 mm.

5. The weatherable, high solar thermal energy reflective fabric of claim 2, wherein, The diameter of the HDPE fiber in the HDPE flash non-woven fabric is 200 nm-10000 nm.

6. The weatherable, high solar thermal energy reflective fabric of claim 2, wherein, The square gram weight of the PVF anti-ultraviolet layer is 35 g / m2.

7. The weatherable, high solar thermal energy reflective fabric of claim 2, wherein, The thickness of the PVF anti-ultraviolet layer is 12.5 μm.

8. The weatherable, high solar thermal energy reflective fabric of claim 1, wherein, The light reflection fabric layer is a PLA electrostatic spinning non-woven fabric.

9. The weatherable, high solar thermal energy reflective fabric of claim 8, wherein, The diameter of the PLA fiber in the PLA electrostatic spinning non-woven fabric is 1.4 μm, and the thickness of the PLA electrostatic spinning non-woven fabric is 0.16 mm.

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