Sun-shading curtain, production method and production equipment of sun-shading curtain and vehicle

Abstract

The invention discloses a sunshade curtain, a production method and production equipment of the sunshade curtain and a vehicle, and belongs to the technical field of sunshade devices.The sunshade curtain comprises a reflection structure and a sunshade structure, the reflection structure comprises a reflection layer and a carrier layer, and the reflection layer is arranged on the outer side face of the carrier layer; the sunshade structure comprises a tatting layer, an elastomer and an inner surface layer, the outer side face of the tatting layer is connected with the inner side face of the carrier layer, the inner side face of the tatting layer is connected with the outer side face of the elastomer, and the outer side face of the inner surface layer is connected with the inner side face of the elastomer. The sunshade curtain can effectively block and reflect irradiation of sunlight to the interior of a vehicle, the temperature near a skylight of the vehicle is reduced, the temperature in the vehicle is reduced, and the riding comfort degree is improved.

Description

Technical Field

[0001] The invention relates to the technical field of sunshade curtains, in particular to a sunshade curtain, a sunshade curtain production method, production equipment and a vehicle. Background Art

[0002] Most of the roof area of ​​a passenger car is occupied by a sunroof. When the car is placed in an open-air environment, sunlight will directly shine into the interior of the car through the sunroof. In the hot summer, due to direct sunlight, the temperature inside the car can reach as high as 50℃, and the temperature near the sunroof can even reach as high as 90℃. The high temperature inside the car seriously affects the riding comfort.

[0003] In order to solve the above problems, most solutions in the prior art are to install a retractable sunshade structure on the inside of the sunroof. When the vehicle is exposed to the sun, people can pull up the sunshade to block the sun's exposure, hoping to reduce the temperature inside the vehicle. However, the sunshades commonly used at present are usually made of ordinary textile materials. At the same time, in order to achieve the purpose of facilitating the retraction of the sunshade, the thickness of the sunshade is usually designed to be very thin. Therefore, the existing sunshade cannot achieve a good heat insulation effect. In fact, after a vehicle has been exposed to the sun for a period of time, the effect of reducing the temperature inside the vehicle is not obvious. Summary of the invention

[0004] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention provides a sunshade, a production method of the sunshade, a sunshade production device and a vehicle.

[0005] The solution of the present invention to solve its technical problem is: In a first aspect, a sunshade comprises: A reflective structure, comprising a reflective layer and a carrier layer, wherein the reflective layer is arranged on the outer side of the carrier layer; The sunshade structure comprises a woven layer, an elastic body and an inner surface layer, wherein the outer side of the woven layer is connected to the inner side of the carrier layer, the inner side of the woven layer is connected to the outer side of the elastic body, and the outer side of the inner surface layer is connected to the inner side of the elastic body.

[0006] The present invention has at least the following beneficial effects: when in use, the inner surface layer is arranged toward the interior of the vehicle, and the reflective layer is arranged toward the exterior of the vehicle, the reflective layer can block the infrared rays generated by sunlight and the surrounding environment outside the vehicle, and reduce the secondary heat radiation of the sunshade into the vehicle after the temperature of the sunshade curtain rises due to solar radiation. The elastomer in the sunshade structure has good elasticity, and the sunshade curtain formed in combination with the reflective layer can improve the folding performance of the sunshade curtain while ensuring the heat insulation performance, thereby achieving the effect of easy extension and retraction.

[0007] As a further improvement of the above technical solution, the elastomer is a thermoplastic polyurethane elastomer rubber film. The thermoplastic polyurethane elastomer rubber film has the ability to eliminate transmitted light. When it is cleverly combined with the reflective layer in the same sunshade structure, the sunshade has good heat insulation performance and can improve ultraviolet protection, thereby greatly reducing the temperature inside the car and improving the riding comfort. Moreover, the thermoplastic polyurethane elastomer rubber film has good softness and can improve the folding performance of the sunshade while ensuring the heat insulation performance.

[0008] As a further improvement of the above technical solution, an adhesive layer is provided between the carrier layer and the woven layer, between the woven layer and the elastic body, and between the inner surface layer and the elastic body. By providing the adhesive layer, the stability of the connection between the carrier layer and the woven layer, between the woven layer and the elastic body, and between the inner surface layer and the elastic body can be achieved, thereby ensuring the strength of the sunshade and extending the service life of the sunshade.

[0009] As a further improvement of the above technical solution, the adhesive layer is a hot melt adhesive, and the melting temperature of the hot melt adhesive is in the range of greater than or equal to 120°C and less than or equal to 150°C. Since the melting temperature is lower than the use temperature of ordinary hot melt adhesives, low-temperature coating can be achieved, which is more conducive to processing. As a further improvement of the above technical solution, the thickness of each adhesive layer is in the range of greater than or equal to 0.1 micrometer and less than or equal to 10 micrometers. The adhesive layer within this thickness range can provide sufficient bonding strength and enable the sunshade to maintain good folding and storage performance.

[0010] As a further improvement of the above technical solution, the thickness of the reflective layer is in the range of greater than or equal to 25 nanometers and less than or equal to 500 nanometers. The reflective layer within this thickness range can achieve efficient heat reflection, and its combination with the carrier layer is more stable, which can extend the service life of the sunshade and control the production cost of the sunshade.

[0011] As a further improvement of the above technical solution, the reflective layer is one of a metal layer, an alloy layer, a metal oxide layer or an oxide ceramic layer. The metal layer, the alloy layer, the metal oxide layer or the oxide ceramic layer all have good reflective properties, and can achieve the effect of blocking the infrared rays generated by sunlight and the surrounding environment, and can reduce the secondary heat radiation from the sunshade to the vehicle after the temperature of the sunshade increases due to solar radiation, thereby reducing the temperature inside the vehicle.

[0012] As a further improvement of the above technical solution, the carrier layer is a plastic film. As a carrier of the reflective layer, the plastic film can have good bonding strength with the reflective layer.

[0013] As a further improvement of the above technical solution, the thickness of the plastic film is in the range of greater than or equal to 1 micron and less than or equal to 25 microns. The plastic film within this thickness range can provide sufficient support for the reflective layer, allowing the reflective layer to be evenly arranged and well combined with the reflective layer, thereby ensuring the stability and durability of the reflective structure.

[0014] As a further improvement of the above technical solution, the thickness of the inner surface layer is in the range of greater than or equal to 0.5 mm and less than or equal to 0.7 mm. The inner surface layer within this thickness range has sufficient strength and durability, and is not able to resist wear, tear and deformation well during daily use, and can reduce the weight and production cost of the sunshade, while maintaining the folding and storage performance of the sunshade.

[0015] As a further improvement of the above technical solution, the inner surface layer is a knitted piece made of at least one material selected from cotton, linen, polyester, polyvinyl chloride and non-woven fabric. Using the knitted piece as the inner surface layer can improve the aesthetics of the sunshade and increase the comfort of use.

[0016] As a further improvement of the above technical solution, the thickness of the woven layer is in the range of greater than or equal to 0.1 mm and less than or equal to 0.3 mm. The woven layer within this thickness range has the advantages of good light shielding and light transmission balance, excellent durability, lightness and portability, and high cost-effectiveness.

[0017] As a further improvement of the above technical solution, the woven layer is a woven piece made of at least one material selected from the group consisting of cotton, linen, polyester, polyvinyl chloride and non-woven fabric. The woven layer formed of at least one material selected from the group consisting of cotton, linen, polyester, polyvinyl chloride and non-woven fabric has a relatively stable size and is not easily deformed or out of shape during use.

[0018] In a second aspect, an embodiment of the present invention further provides a method for producing a sunshade curtain, which is used to produce the sunshade curtain as described in any one of the above technical solutions, and the method for producing the sunshade curtain comprises the following steps: The elastic body is arranged between the woven layer and the inner surface layer to form the sunshade structure; Disposing the reflective layer on the carrier layer to form the reflective structure; The inner side surface of the reflective structure is connected to the outer side surface of the sunshade structure to form the sunshade curtain.

[0019] The sunshade obtained through the above steps can effectively block and reflect sunlight from irradiating the interior of the vehicle, reduce the temperature near the vehicle sunroof, reduce the temperature inside the vehicle, improve the riding comfort, and facilitate the folding and extension of the sunshade.

[0020] As a further improvement of the above technical solution, the step of arranging the elastic body between the woven layer and the inner surface layer to form the sunshade structure includes: cleaning the woven layer; Evenly bonding the elastomer to the cleaned woven layer; The inner skin is bonded to the elastomer.

[0021] Bonding the elastomer to the cleaned woven layer can help the sunshade remain flat when unfolded, avoid unevenness, and improve the wear and tear resistance of the sunshade. Providing an inner surface layer on the inside of the elastomer can improve the aesthetics of the sunshade and increase the comfort of use.

[0022] As a further improvement of the above technical solution, the step of providing the reflective layer on the carrier layer to form the reflective structure includes: Obtaining a plastic film by casting, wherein the plastic film is the carrier layer; The base material of the reflective layer is plated on the plastic film through a vacuum evaporation process, and the reflective layer is formed on the plastic film.

[0023] The thickness of the plastic film obtained by the cast-on method is controllable and can be well combined with the reflective layer. Through the vacuum evaporation process on the plastic film, the thickness of the reflective layer is controllable, and the reflective layer is set more evenly on the plastic film, ensuring that the reflective effect of each position of the sunshade meets the requirements.

[0024] As a further improvement of the above technical solution, the step of connecting the inner side surface of the reflective structure with the outer side surface of the sunshade structure to form the sunshade curtain includes: bonding the outer side of the woven layer to the inner side of the carrier layer to form a composite body; Cutting the composite body according to the design requirements, and sealing or wrapping the edges of the cut composite body to form the sunshade curtain; The sunshade is subjected to quality inspection, including but not limited to appearance inspection, size measurement and performance testing.

[0025] After bonding the reflective structure to the sunshade structure, a stable composite body can be formed. The composite body can be cut according to the actual situation, and the edges can be sealed or wrapped. The obtained sunshade curtain is more suitable for the vehicle sunroof to be applied. While ensuring the sunshade performance of the sunshade curtain, the waste of materials is reduced, and debonding and wear can be prevented. The final sunshade curtain has a longer service life. Sunshades that have passed quality inspections can enter the market to avoid unqualified products from entering the market and protect the rights and interests of consumers.

[0026] In a third aspect, an embodiment of the present invention provides a sunshade production device, which is used to perform the sunshade production method as described in any one of the technical solutions in the second aspect. The sunshade obtained by using the sunshade production device of this embodiment can effectively block and reflect the sun's rays from irradiating the interior of the vehicle, reduce the temperature near the vehicle sunroof, reduce the temperature inside the vehicle, improve the riding comfort, and achieve the purpose of facilitating the extension and retraction of the sunshade.

[0027] In a fourth aspect, an embodiment of the present invention provides a vehicle, comprising a sunshade as described in any one of the technical solutions in the first aspect. The sunshade is installed at the sunroof of the vehicle. Since the sunshade can effectively block and reflect the sun's rays from irradiating the interior of the vehicle, it can reduce the temperature near the sunroof of the vehicle, reduce the temperature inside the vehicle, improve the riding comfort, and achieve the purpose of facilitating the extension and retraction of the sunshade. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly describes the drawings required for use in the description of the embodiments. Obviously, the drawings described are only part of the embodiments of the present invention, not all of the embodiments, and those skilled in the art can also obtain other design solutions and drawings based on these drawings without creative work.

[0029] Figure 1 is a schematic structural diagram of a sunshade curtain according to an embodiment of the present invention; Figure 2 is a flow chart of a method for producing a sunshade curtain according to an embodiment of the present invention; Figure 3 yes Figure 2 A detailed flowchart of step S100; Figure 4 yes Figure 2 A detailed flow chart of step S200; Figure 5 yes Figure 2 Detailed flowchart of step S300 in FIG.

[0030] Figure numerals: 101, reflective structure; 102, sunshade structure; 103, reflective layer; 104, carrier layer; 105, woven layer; 106, thermoplastic polyurethane elastomer rubber film; 107, inner surface layer; 108, adhesive layer. DETAILED DESCRIPTION

[0031] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0032] In the description of the present invention, descriptions of orientations, such as up, down, front, back, left, right, etc., and orientations or positional relationships indicated are based on the orientations or positional relationships shown in the drawings and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0033] In the description of the present invention, "several" means one or more, "more" means more than two, "greater than", "less than", "exceed" etc. are understood as not including the number itself, and "above", "below", "within" etc. are understood as including the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0034] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0035] Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, other embodiments obtained by those skilled in the art without creative work are all within the scope of protection of the present invention. The various technical features in the present invention can be combined interchangeably without conflicting with each other.

[0036] Reference Figure 1 In the first aspect, an embodiment of the present invention proposes a sunshade that can solve the problem of poor heat insulation effect of existing sunshades, can effectively block and reflect sunlight from irradiating the interior of a vehicle, reduce the temperature near the vehicle sunroof, reduce the temperature inside the vehicle, and improve riding comfort, and the sunshade is easy to fold.

[0037] In this embodiment, the sunshade curtain includes a reflective structure 101 and a sunshade structure 102. The reflective structure 101 includes a reflective layer 103 and a carrier layer 104. The carrier layer 104 provides a carrier for the reflective layer 103. The reflective layer 103 is arranged on the outer side of the carrier layer 104 by plating, coating and other processes, that is, arranged on the side of the carrier layer 104 facing the outside of the vehicle. The sunshade structure 102 includes a woven layer 105, an elastomer and an inner surface layer 107. The elastomer is connected between the woven layer 105 and the inner surface layer 107. The outer side of the woven layer 105 is connected to the inner side of the carrier layer 104 of the reflective structure 101. The inner side of the carrier layer 104 is the side facing the inside of the vehicle. When in use, the inner surface layer 107 is arranged toward the inside of the vehicle, and the reflective layer 103 is arranged toward the outside of the vehicle.

[0038] It is understandable that the elastomer may be a polyolefin elastomer, a polyurethane elastomer, etc. In this embodiment, the elastomer is a thermoplastic polyurethane rubber (TPU) film 106 .

[0039] It can be understood that when the reflective layer 103 on the surface of the sunshade is subjected to electromagnetic radiation, the reflective layer 103 has the ability to absorb and transmit in addition to the ability to reflect, wherein the reflectivity is R, the absorptivity is A, the transmittance is T, and the relationship formula among the reflectivity, absorptivity and transmittance is: R+A+T=100%.

[0040] After absorbing heat, an object will re-emit energy, which is called electromagnetic radiation of heat and is characterized by emissivity E. Kirchhoff's law states that under thermal equilibrium conditions, the radiation power emitted by an object must be equal to the radiation power it absorbs, that is, E=A under thermal equilibrium, so E=1-RT. The reflective layer 103 can block the infrared rays generated by sunlight and the surrounding environment outside the vehicle, reduce the secondary heat radiation from the sunshade to the vehicle after the temperature rises due to solar radiation, and thus greatly reduce the temperature inside the vehicle.

[0041] TPU can be made into a film by casting, blowing, calendering or coating, and has the superior characteristics of good elasticity, toughness, wear resistance, good cold resistance, environmental protection and non-toxicity. The formed thermoplastic polyurethane elastomer rubber film 106 has the ability to eliminate transmitted light. When the thermoplastic polyurethane elastomer rubber film 106 and the reflective layer 103 are cleverly combined in the same sunshade structure, they can produce additional effects beyond the superposition of single functions.

[0042] First, the combination of the thermoplastic polyurethane elastomer rubber film 106 and the reflective layer 103 can enhance the heat insulation performance. The thermoplastic polyurethane elastomer rubber film 106 not only eliminates the transmitted light, but also has a certain heat insulation performance, which can block the penetration of some thermal radiation. The reflective layer 103 further reduces the absorption of heat by reflecting the thermal radiation in the sunlight. The combination of the two can significantly enhance the heat insulation effect of the sunshade, making the car or indoor environment cooler.

[0043] Second, the combination of thermoplastic polyurethane elastomer rubber film 106 and reflective layer 103 can enhance UV protection. The film-like structure formed by TPU material has good UV protection performance and can block UV damage to indoor objects and human body. Although the main function of reflective layer 103 is to reflect light, it may also reduce the transmission of UV to a certain extent. The combination of the two can form a more powerful UV protection barrier.

[0044] Third, the combination of the thermoplastic polyurethane elastomer rubber film 106 and the reflective layer 103 can improve the visual effect. The reflective layer 103 can be designed into different colors and patterns as needed to reflect specific light effects, such as mirror effects or soft scattered light. The thermoplastic polyurethane elastomer rubber film 106 has transparent or translucent properties and can adjust the transmittance of light. The combination of the two can create a unique visual effect and meet the decoration and privacy requirements in different scenes.

[0045] Fourth, the combination of the thermoplastic polyurethane elastomer rubber film 106 and the reflective layer 103 can promote energy conservation and emission reduction. By effectively eliminating the transmitted light through the thermoplastic polyurethane elastomer rubber film 106 and effectively eliminating the reflected light through the reflective layer 103, the sunshade can significantly reduce the temperature in the room or car, thereby reducing the energy consumption of refrigeration equipment such as air conditioners. This energy conservation and emission reduction effect is of great significance for reducing energy consumption and reducing carbon emissions.

[0046] The combination of thermoplastic polyurethane elastomer rubber film 106 and reflective layer 103 is not just a simple superposition of technologies, they can complement and promote each other, and produce additional effects beyond the superposition of single functions. This synergistic effect not only improves the performance and quality of the sunshade, but also brings users a more comfortable, safe and energy-saving experience.

[0047] In some embodiments, adhesive layers 108 are provided between the carrier layer 104 and the woven layer 105 , between the woven layer 105 and the thermoplastic polyurethane elastomer rubber film 106 , and between the inner surface layer 107 and the thermoplastic polyurethane elastomer rubber film 106 , respectively, and adhesive connection is achieved through the adhesive layers 108 .

[0048] In some embodiments, the adhesive layer 108 is a hot melt adhesive. It is understood that hot melt adhesive is an adhesive that is bonded and formed by heating from solid to liquid, and is cured and formed by moisture in the air after cooling. It is irreversible after forming and has good bonding ability, so that the carrier layer 104 and the woven layer 105, the woven layer 105 and the thermoplastic polyurethane elastomer rubber film 106, and the inner surface layer 107 and the thermoplastic polyurethane elastomer rubber film 106 are stably connected. The melting temperature of the hot melt adhesive is greater than or equal to 120°C and less than or equal to 150°C, such as moisture-curing reactive polyurethane hot melt adhesive (Polyurethane Reactive, PUR). Since the melting temperature is lower than the use temperature of ordinary hot melt adhesives (170°C to 200°C), low-temperature gluing can be achieved, which is more conducive to processing.

[0049] In this embodiment, PUR hot melt adhesive is used to form the adhesive layer 108. PUR hot melt adhesive is particularly suitable for bonding heat-sensitive materials (such as plastics, etc.), and has excellent heat resistance, cold resistance, water vapor resistance, chemical resistance and solvent resistance. The bonding process is simple and can be applied by roller coating or spraying, etc., and is suitable for various automated assembly lines.

[0050] In some embodiments, the thickness of the adhesive layer 108 is designed to be greater than or equal to 0.1 micrometers and less than or equal to 10 micrometers. Specifically in this embodiment, the thickness of the PUR hot melt adhesive is in the range of 0.1-10um, and the determination of this numerical range is usually based on a comprehensive consideration of multiple factors, including material properties, application requirements, cost, and manufacturing process.

[0051] PUR hot melt adhesive has excellent adhesion, weather resistance and elasticity, and these properties can work best at a specific thickness. An adhesive layer 108 that is too thin cannot provide sufficient bonding strength, while an adhesive layer 108 that is too thick will increase costs and affect the folding and storage performance of the sunshade. The vehicle's sunroof sunshade needs to meet certain light-shielding, heat-insulating and durability requirements. The thickness of the PUR hot melt adhesive should be selected based on these requirements to ensure that the various structures of the sunshade can be stably bonded and maintain stable performance during long-term use.

[0052] Keeping the thickness of the PUR hot melt adhesive within the range of greater than or equal to 0.1 microns and less than or equal to 10 microns can achieve a fine bonding effect, reduce the impact of the adhesive layer 108 on the overall thickness and weight of the sunshade, and maintain a high bonding strength. In addition, it also has good adaptability. The micron-level thickness enables the PUR hot melt adhesive to better adapt to the subtle bumps and grooves of each structure in the sunshade, improving the flatness and aesthetics of the bonding. Moreover, under the premise of meeting performance requirements, using the adhesive layer 108 within this thickness range helps save material costs and conforms to the concepts of environmental protection and sustainable development.

[0053] Bond strength testing of PUR hot melt adhesives in multiple thickness ranges: Under standard test conditions, PUR hot melt adhesives with a thickness range of greater than or equal to 0.1 microns and less than or equal to 10 microns can stably adhere and meet or exceed the bond strength requirements specified by the industry.

[0054] Weather resistance tests were performed on PUR hot melt adhesives in multiple thickness ranges: after long-term ultraviolet irradiation, high temperature and high humidity and other environmental tests, the PUR hot melt adhesive layer 108 in the thickness range of greater than or equal to 0.1 microns and less than or equal to 10 microns showed no obvious aging, falling off or performance degradation.

[0055] The folding durability test was conducted on PUR hot melt adhesive in multiple thickness ranges: in the process of simulating repeated folding and unfolding of the sunshade, the PUR hot melt adhesive layer 108 in the thickness range of greater than or equal to 0.1 microns and less than or equal to 10 microns was able to remain intact and had no negative impact on the folding performance and service life of the sunshade.

[0056] In some embodiments, the thickness of the reflective layer 103 is set within a range of greater than or equal to 25 nanometers and less than or equal to 500 nanometers. The thickness of the reflective layer 103 is determined based on a comprehensive consideration of multiple factors, including optical performance, heat reflection efficiency, manufacturing cost, and material stability and durability.

[0057] It is understandable that the main function of the reflective layer 103 is to reflect the heat radiation part of the sunlight and reduce the heat entering the car. Within this thickness range, the reflective layer 103 can effectively reflect most of the sunlight. As the thickness of the reflective layer 103 increases, its heat reflection efficiency usually increases. However, when the thickness increases to a certain extent, the improvement in reflection efficiency becomes limited, while the manufacturing cost and weight will increase significantly. Therefore, it is necessary to find a balance between heat reflection efficiency and cost.

[0058] It is understandable that a thinner reflective layer 103 can reduce material costs, but may require more complex processes to ensure its uniformity and stability. The reflective layer 103 needs to be well combined with the carrier layer 104 to ensure the stability and durability of the overall structure.

[0059] Specifically, the thickness of the reflective layer 103 is set within a range of greater than or equal to 25 nanometers and less than or equal to 500 nanometers, which has the following advantages: First, it can achieve efficient heat reflection. Within this thickness range, the reflective layer 103 can effectively reflect the heat radiation part of the sunlight, significantly reduce the temperature inside the car, and improve driving comfort. Second, the manufacturing cost is controllable. The thickness of the reflective layer 103 is within a range of greater than or equal to 25 nanometers and less than or equal to 500 nanometers, which can reduce the manufacturing cost while ensuring performance and improve the cost performance of the product. Third, within this thickness range, the combination of the reflective layer 103 and the carrier layer 104 is more stable, and can maintain good performance in long-term use, extending the service life of the product.

[0060] The thermal reflectivity test shows that under simulated sunlight, the thermal reflectivity of the reflective layer 103 within this thickness range can reach more than 97%, effectively reducing the heat entering the vehicle. The durability test shows that after a period of use and the test of harsh environments, the reflective layer 103 within this thickness range has no obvious aging, shedding or performance degradation, showing good durability and stability.

[0061] In this embodiment, the reflective layer 103 is a metal layer, an alloy layer, a metal oxide layer or an oxide ceramic layer. For example, aluminum, silver, gold, aluminum oxide, aluminum oxide ceramic, etc., among which aluminum is the most preferred. The reflective layer 103 is obtained by vacuum evaporation process. Specifically, the carrier layer 104 is installed in a vacuum evaporation machine, and a vacuum pump is used to evacuate the vacuum in the vacuum evaporation machine to a vacuum degree of 1.3×10 -2 ~1.3×10 -3 Pa, the crucible is heated to melt the high-purity aluminum wire at a temperature of 1200°C to 1400°C and evaporate into gaseous aluminum. The gaseous aluminum particles are deposited on the surface of the moving carrier layer 104, and after cooling and reduction, a continuous and bright metal aluminum layer is formed. The metal aluminum layer is the reflective layer 103, and its light reflectivity can reach 97%. Specifically, the thickness of the reflective layer 103 is controlled by controlling the evaporation speed of aluminum, the moving speed of the carrier layer 104, and the vacuum degree of the coating chamber.

[0062] In this embodiment, the carrier layer 104 is a plastic film. The plastic film has good bonding strength with the reflective layer 103. As a carrier of the reflective layer 103, it can be a polyethylene terephthalate (PET) film or a cast polypropylene (CPP) film. In addition to having excellent physical and mechanical properties, PET film and CPP film also have excellent optical properties, good transparency, low haze, and high gloss.

[0063] In the present embodiment, the plastic film is produced by a casting method. The thickness of the plastic film is in the range of greater than or equal to 1 micron and less than or equal to 25 microns. The plastic film within this thickness range can provide sufficient strength support for the reflective layer 103, so that the reflective layer 103 can be evenly arranged, and can be well combined with the reflective layer 103, ensuring the stability and durability of the reflective structure 101. Moreover, in the process of simulating repeated folding and unfolding of the sunshade, the plastic film within the thickness range of greater than or equal to 1 micron and less than or equal to 25 microns can remain intact and has no negative impact on the folding performance and service life of the sunshade. In addition, the reflective structure 101 formed by combining the plastic film under this thickness limit with the reflective layer 103 can be stably bonded to the outside of the sunshade structure 102 through PUR hot melt adhesive, providing space for gluing the PUR hot melt adhesive.

[0064] In some embodiments, the thickness of the inner surface layer 107 of the sunshade is designed to be greater than or equal to 0.5 mm and less than or equal to 0.7 mm. The thickness of the inner surface layer 107 is set based on a comprehensive consideration of multiple factors, including but not limited to material properties, durability, cost, and manufacturing process. The inner surface layer 107 within the above thickness range has the advantages of good light-shielding and light-transmitting balance, excellent durability, lightness and portability, and high cost-effectiveness.

[0065] In some embodiments, the inner surface layer 107 is a knitted product, which is made by a knitting process and is made of at least one material selected from cotton, linen, polyester, polyvinyl chloride and non-woven fabrics. The inner surface layer 107 formed by the knitting process has specific physical and chemical properties, which perform better within a thickness range of greater than or equal to 0.5 mm and less than or equal to 0.7 mm. It is understandable that an inner surface layer 107 that is too thin may lack sufficient strength and durability, making it unable to resist wear, tear and deformation well during daily use. An inner surface layer 107 that is too thick will increase the weight and production cost of the sunshade. At the same time, an inner surface layer 107 that is too thick will also affect the convenience of folding and storing the sunshade.

[0066] In some embodiments, the thickness of the woven layer 105 is in the range of greater than or equal to 0.1 mm and less than or equal to 0.3 mm. The thickness of the woven layer 105 is set based on a comprehensive consideration of multiple factors, including but not limited to material properties, durability, cost, and manufacturing process.

[0067] In this embodiment, the thickness of the woven layer 105 is 0.2 mm. The 0.2 mm thick woven layer 105 has the advantages of good light shielding and light transmission balance, excellent durability, lightness and portability, and high cost-effectiveness.

[0068] In some embodiments, the woven layer 105 is a woven member made of at least one material selected from cotton, linen, polyester, polyvinyl chloride and non-woven fabric. The woven layer 105 is formed by machine weaving, wherein the yarns are interwoven perpendicularly in the warp and weft directions, and the size is relatively stable, and it is not easy to deform or lose shape during use, thereby maintaining the size and shape of the sunshade.

[0069] In this embodiment, the inner surface layer 107 and the woven layer 105 are arranged on the inner and outer sides of the thermoplastic polyurethane elastomer rubber film 106, so as to form a sunshade structure 102 with a stable structure and not easy to deform. Such a stable sunshade structure 102 helps the sunshade to remain flat when unfolded, avoiding the appearance of wavy or uneven conditions. In addition, the sunshade structure 102 arranged in this way has high wear resistance and tear resistance, and can withstand the pulling and friction in daily use, thereby extending the service life of the sunshade. In terms of light shielding and heat insulation, although the inner surface layer 107 and the woven layer 105 themselves may not directly provide efficient heat insulation performance, they reduce the direct penetration of light and heat to a certain extent, and after being combined with the thermoplastic polyurethane elastomer rubber film 106, the heat insulation effect of the sunshade can be further improved. In addition, both the inner surface layer 107 and the woven layer 105 have good softness, which makes it easier to fold or roll up the sunshade when it is stored, reducing the generation of wrinkles.

[0070] It is understandable that the thermoplastic polyurethane elastomer rubber film 106 has the characteristics of high elasticity, wear resistance, weather resistance, waterproof and anti-fouling, and has a certain self-repairing ability. Specifically, the high elasticity means that the TPU material has excellent elasticity and can quickly return to its original state when subjected to external force. This characteristic enables the sunshade to maintain its shape and good flatness during the unfolding and storage process. Wear resistance means that the TPU material has excellent wear resistance, can resist wear and scratches in daily use, and maintain the smoothness of the surface of the sunshade. Weather resistance means that the TPU material has good weather resistance, can maintain stable performance under various climatic conditions, and is not easy to age or deform. Waterproof and anti-fouling properties mean that the TPU layer usually has waterproof and anti-fouling functions, which can effectively prevent the erosion of pollutants such as rainwater and dust on the sunshade, keeping it clean and beautiful. Self-repairing ability means that some TPU materials have the function of self-repairing scratches, which can automatically restore the flatness and smoothness of the surface after slight damage.

[0071] Existing sunshades are usually made of fabric or other non-reflective materials, and their design focuses on blocking sight and providing some insulation, but the thermal reflectivity is relatively low. They may achieve thermal insulation by absorbing part of the solar radiation and converting it into heat energy (which is then dissipated through conduction, convection and radiation), and reducing the transmission of thermal radiation through the tiny pores between the fabrics.

[0072] In order to further illustrate the excellent performance of the sunshade of this embodiment, a comparative experiment is conducted between the sunshade of this embodiment and the existing sunshade. The experimental equipment used is an infrared spectrometer or thermal imager, a thermometer, a solar simulator or radiation source, a data acquisition system, etc. First, the sunshade of this embodiment and the existing sunshade are installed in the experimental equipment respectively to ensure that they can work normally. Then, a solar simulator or radiation source is used to provide standardized light source and thermal radiation. An infrared spectrometer or thermal imager is then used to measure the thermal reflectivity of the sunshade when the air mass is AM 1.5 and the ground irradiance is 1000 W / ㎡. Finally, the temperature change and thermal reflectivity data of the sunshade of this embodiment and the existing sunshade are recorded.

[0073] After the experiment is completed, the experimental data is sorted and analyzed, and the average value and standard deviation are calculated to obtain the energy reflectivity of different sunshades to solar radiation. Specifically, the heat reflectivity of existing sunshades is 30%-50%, while the heat reflectivity of the sunshade of this embodiment reaches 80%-97%.

[0074] In this embodiment, the thermoplastic polyurethane elastomer rubber film 106 is combined with the woven layer 105 and the inner surface layer 107 to form the sunshade structure 102, which can further bring into play the characteristics of the thermoplastic polyurethane elastomer rubber film 106, the woven layer 105, and the inner surface layer 107, and give full play to the advantages of the three. The woven layer 105 and the inner surface layer 107 can provide a stable structure and a certain shading effect, while TPU provides high elasticity, wear resistance, weather resistance, and waterproof and antifouling properties. This combination allows the sunshade to maintain a flat, wrinkle-free appearance when unfolded, and can also be easily folded or rolled up when stored without wrinkles. In addition, this design also improves the durability and service life of the sunshade, making it more suitable as a sunshade solution for parts such as the sunroof of a vehicle.

[0075] In the second aspect, an embodiment of the present invention further proposes a method for producing a sunshade, which can produce and prepare the sunshade proposed in any one of the embodiments of the first aspect above. The obtained sunshade can effectively block and reflect sunlight from shining on the interior of the vehicle, reduce the temperature near the vehicle sunroof, reduce the temperature inside the vehicle, and improve the riding comfort.

[0076] In this embodiment, the production method of the sunshade includes steps S100, S200 and S300. Figure 2 Specifically in this embodiment, a thermoplastic polyurethane elastomer rubber film 106 is used as the elastomer in the sunshade structure 102 .

[0077] Step S100, a thermoplastic polyurethane elastomer rubber film 106 is disposed between the woven layer 105 and the inner surface layer 107 to form a sunshade structure 102. The inner surface layer 107 and the woven layer 105 are disposed on the inner and outer sides of the thermoplastic polyurethane elastomer rubber film 106, and the sunshade structure 102 formed is stable and not easy to deform. The sunshade curtain can remain flat when unfolded to avoid wavy or uneven conditions, and has good tear resistance and wear resistance, thereby extending the service life of the sunshade curtain.

[0078] In addition, the inner surface layer 107 and the woven layer 105 can reduce the penetration of light and heat to a certain extent, and the thermoplastic polyurethane elastomer rubber film 106 has a good ability to eliminate transmitted light. After the inner surface layer 107, the woven layer 105 and the thermoplastic polyurethane elastomer rubber film 106 are combined, the heat insulation effect of the sunshade can be further enhanced.

[0079] Step S200, the reflective layer 103 is disposed on the carrier layer 104 to form the reflective structure 101. The carrier layer 104 provides a space for the reflective layer 103. The reflective layer 103 can reflect most of the sunlight. When disposed on the sunshade, the infrared rays generated by the sunlight and the surrounding environment can be blocked outside the vehicle, and the secondary heat radiation from the sunshade to the vehicle after the temperature of the sunshade increases due to solar radiation is reduced, thereby greatly reducing the temperature inside the vehicle.

[0080] Step S300, the inner side of the reflective structure 101 is connected to the outer side of the sunshade structure 102 to form a sunshade curtain. Since the sunshade structure 102 is provided with a thermoplastic polyurethane elastomer rubber film 106, and the reflective layer 103 is provided on the reflective structure 101, the combination of the thermoplastic polyurethane elastomer rubber film 106 and the reflective layer 103 can enhance the heat insulation performance and improve the ultraviolet protection. The thermoplastic polyurethane elastomer rubber film 106 and the reflective layer 103 can complement and promote each other, and the synergistic effect formed not only improves the performance and quality of the sunshade curtain, but also brings a more comfortable, safe and energy-saving use experience to the user.

[0081] In some embodiments, step S100 includes step S110, step S120 and step S130, referring to Figure 3 .

[0082] Step S110, cleaning the woven layer 105. Cleaning and pre-treating the woven layer 105 can ensure that its surface is clean and free of impurities, in preparation for the subsequent bonding step.

[0083] Step S120, the thermoplastic polyurethane elastomer rubber film 106 is evenly bonded to the cleaned woven layer 105. TPU can be made into a film by casting, blowing, calendering or coating, and the thermoplastic polyurethane elastomer rubber film 106 is bonded to the woven layer 105 using the adhesive layer 108 formed by PUR hot melt adhesive, which lays the foundation for the subsequent formation of a stable sunshade structure 102, helps the sunshade to remain flat when unfolded, avoids unevenness, and can improve the wear resistance and tear resistance of the sunshade.

[0084] Step S130, bonding the inner surface layer 107 to the thermoplastic polyurethane elastomer rubber film 106. On the basis of bonding the thermoplastic polyurethane elastomer rubber film 106 to the woven layer 105, the inner surface layer 107 is bonded to the top of the thermoplastic polyurethane elastomer rubber film 106. The inner surface layer 107 not only improves the aesthetics of the sunshade, but also increases the comfort of use.

[0085] It is understandable that the inner surface layer 107 is a knitted piece, on which patterns and designs can be formed to further enhance the aesthetics of the sunshade.

[0086] In some embodiments, step S200 includes step S210 and step S220. Figure 4 .

[0087] Step S210, obtain a plastic film by casting, the plastic film is the carrier layer 104. The plastic film has good bonding with the reflective layer 103, and as a carrier of the reflective layer 103, it has excellent physical and mechanical properties, and also has excellent optical properties, good transparency, low haze, and high gloss.

[0088] The carrier layer 104 is obtained by casting, which can ensure that the thickness of the plastic film is in the range of 1 micron to 25 microns. The plastic film within this thickness range can better combine with the reflective layer 103, making the setting of the reflective layer 103 more uniform and providing good support for the reflective layer 103.

[0089] It can be understood that the cast film process is a plastic film production process. The raw materials are first plasticized and melted through an extruder, and then extruded through a mold to allow the raw materials to flow in sheets onto the roller surface of a steadily rotating cooling roller. The film is cooled and shaped on the cooling roller, and then the product is rolled up after traction and trimming, and finally a plastic film of suitable thickness is obtained.

[0090] Step S220 , coating the base material of the reflective layer 103 on the plastic film by vacuum evaporation process, and forming the reflective layer 103 on the plastic film.

[0091] In some embodiments, the reflective layer 103 is a metal layer. The plastic film is placed in a vacuum deposition machine and evacuated with a vacuum pump to make the vacuum degree in the vacuum deposition machine reach 1.3×10 -2 ~1.3×10 -3 Pa, the crucible is heated to melt the high-purity metal wire at a temperature of 1200°C to 1400°C and evaporate into gaseous metal. The gaseous metal particles are deposited on the surface of the moving carrier layer 104, and after cooling and reduction, a continuous and bright metal layer is formed. The metal layer is the reflective layer 103, and its light reflectivity can reach 97%. Specifically, the thickness of the reflective layer 103 is controlled by controlling the evaporation speed of the metal, the moving speed of the carrier layer 104, and the vacuum degree of the coating chamber.

[0092] It is understandable that the reflective layer 103 may also be an alloy layer, a metal oxide layer, an oxide ceramic layer, etc.

[0093] Through step S220, it can be ensured that the reflective layer 103 is evenly arranged on the plastic film, the thickness of the reflective layer 103 is in the range of greater than or equal to 25 nanometers and less than or equal to 500 nanometers, and the reflective layer 103 can be stably combined with the plastic film. During use, it can maintain good performance for a long time, thereby increasing the service life of the blackout curtain.

[0094] In some embodiments, step S300 includes step S310, step S320, and step S330. Figure 5 .

[0095] Step S310, bonding the outer side of the woven layer 105 to the inner side of the carrier layer 104 to form a composite body. By bonding the woven layer 105 to the carrier layer 104, the combination of the reflective structure 101 and the sunshade structure 102 can be achieved, and the sunshade curtain obtained subsequently can effectively block and reflect the sun's rays from irradiating the interior of the vehicle, reduce the temperature near the vehicle sunroof, reduce the temperature inside the vehicle, and improve the riding comfort.

[0096] In this embodiment, the bonding layer 108 formed by PUR hot melt adhesive is used between the woven layer 105 and the carrier layer 104. Moreover, the thickness of the bonding layer 108 is within the range of greater than or equal to 0.1 microns and less than or equal to 10 microns, which can provide sufficient bonding strength for the connection between the woven layer 105 and the carrier layer 104 without having a negative impact on the folding and storage performance of the sunshade.

[0097] Step S320, cutting the composite body according to the design requirements, and sealing or wrapping the edges of the cut composite body to form a sunshade. Cutting the composite body according to the actual size and shape of the vehicle sunroof can make the obtained sunshade fit the sunroof more closely, while ensuring the sunshade performance of the sunshade and reducing material waste. Sealing or wrapping the edges of the composite body can prevent debonding and wear, and the sunshade finally formed has a longer service life.

[0098] Step S330, perform quality inspection on the sunshade, including but not limited to appearance inspection, size measurement and performance test. By performing quality inspection on the sunshade, qualified products and unqualified products can be separated, unqualified products can be prevented from entering the market, and the rights and interests of consumers can be protected. When the unqualified rate of sunshades in the same batch is too high, the production equipment needs to be re-debugged.

[0099] In some embodiments, the sunshade is also tested for thermal reflectivity and temperature change, and the experimental equipment used is an infrared spectrometer or thermal imager, a thermometer, a solar simulator or radiation source, a data acquisition system, etc. The specific test steps are: first, the sunshade of this embodiment is installed in the experimental equipment to ensure that the experimental equipment can work normally. Then, a solar simulator or radiation source is used to provide standardized light source and thermal radiation. Then, an infrared spectrometer or thermal imager is used to measure the thermal reflectivity of the sunshade when the air mass is AM 1.5 and the ground irradiance is 1000 W / ㎡. Finally, the temperature change and thermal reflectivity data are recorded. After the test is completed, the test data is sorted and analyzed, and the average value and standard deviation are calculated to obtain the energy reflectivity of the sunshade to solar radiation. When the thermal reflectivity and temperature change values ​​of the sunshade reach the preset standards, the thermal reflection performance of the sunshade is considered to be qualified.

[0100] In the third aspect, an embodiment of the present invention further proposes a sunshade production device, which is used to produce the sunshade as proposed in any one of the embodiments of the first aspect. Using the sunshade production device of this embodiment, the sunshade can be produced according to the sunshade production method as proposed in any one of the embodiments of the second aspect. The obtained sunshade can effectively block and reflect sunlight from shining on the interior of the vehicle, reduce the temperature near the vehicle sunroof, reduce the temperature inside the vehicle, and improve the riding comfort. The manufactured sunshade has good folding and telescopic functions.

[0101] The sunshade production equipment includes components for performing steps S100 to S300, such as a cleaning component for performing step S110, a thermoplastic polyurethane elastomer rubber film 106 film forming component and a thermoplastic polyurethane elastomer rubber film 106 bonding component for performing step S120, an inner surface layer 107 bonding component for performing step S130, a plastic film film forming component for performing step S210, a vacuum evaporation machine and a vacuum pump for performing step S220, a composite body bonding component for performing step S310, a composite body cutting and processing component for performing step S320, and a quality inspection component for performing step S330.

[0102] It is understandable that the cleaning component can clean the woven layer 105 to ensure that the surface of the woven layer 105 is clean. The thermoplastic polyurethane elastomer rubber film 106 film forming component can form the thermoplastic polyurethane elastomer rubber film 106 by casting, blowing, calendaring or coating, and ensure that the thickness of the thermoplastic polyurethane elastomer rubber film 106 is within a preset range. The thermoplastic polyurethane elastomer rubber film 106 bonding component can perform the gluing action of PUR hot melt adhesive, and can smoothly bond the film-forming thermoplastic polyurethane elastomer rubber film 106 to the woven layer 105. The inner surface layer 107 bonding component can perform the gluing action of PUR hot melt adhesive, and can smoothly bond the inner surface layer 107 to the thermoplastic polyurethane elastomer rubber film 106. The plastic film film forming component can form a plastic film by casting, and the thickness of the formed plastic film is within a preset range. The vacuum evaporation machine and the vacuum pump can realize the vacuum evaporation of the reflective layer 103, so that the reflective layer 103 is evenly plated on the plastic film, and the thickness of the reflective layer 103 is within a preset range. The composite bonding component can apply PUR hot melt adhesive, and can smoothly bond the reflective structure 101 to the outside of the sunshade structure 102. The composite cutting and processing component can realize the cutting of the composite, and can hem or seal the edges of the composite. The quality inspection component can perform quality inspection on the obtained sunshade, including appearance inspection, size measurement, and strength, toughness, waterproof, sun protection and other performance tests.

[0103] In a fourth aspect, an embodiment of the present invention further provides a vehicle, comprising a sunshade as provided in any one of the embodiments of the first aspect. In this embodiment, the sunshade is installed at the sunroof of the vehicle. Since the sunshade can effectively block and reflect the sun's rays from irradiating the interior of the vehicle, the temperature near the sunroof of the vehicle can be reduced, the temperature inside the vehicle can be reduced, and the riding comfort can be improved. In addition, the sunshade can be folded and retracted smoothly.

[0104] It is understandable that the vehicle proposed in this embodiment can be a private car, such as a sedan, SUV, MPV or pickup truck. The vehicle can also be an operating vehicle, such as a van, bus, small truck or large trailer. The vehicle can be a gasoline vehicle or a new energy vehicle. When the vehicle is a new energy vehicle, it can be a hybrid vehicle or a pure electric vehicle.

[0105] The preferred embodiments of the present invention are specifically described above, but the invention is not limited to the embodiments. Those skilled in the art may make various equivalent modifications or substitutions without violating the spirit of the invention. These equivalent modifications or substitutions are all included in the scope defined by the claims of this application.

Claims

1. A sunshade, It is characterized in that include: A reflective structure, comprising a reflective layer and a carrier layer, wherein the reflective layer is arranged on the outer side of the carrier layer; The sunshade structure comprises a woven layer, an elastic body and an inner surface layer, wherein the outer side of the woven layer is connected to the inner side of the carrier layer, the inner side of the woven layer is connected to the outer side of the elastic body, and the outer side of the inner surface layer is connected to the inner side of the elastic body.

2. The sunshade according to claim 1, It is characterized in that The elastomer is a thermoplastic polyurethane elastomer rubber film.

3. The sunshade according to claim 1, It is characterized in that Adhesive layers are respectively arranged between the carrier layer and the woven layer, between the woven layer and the elastomer, and between the inner surface layer and the elastomer.

4. The sunshade according to claim 3, It is characterized in that The adhesive layer is a hot melt adhesive, and the melting temperature of the hot melt adhesive is in the range of greater than or equal to 120° C. and less than or equal to 150° C.

5. The sunshade according to claim 3, It is characterized in that The thickness of each adhesive layer ranges from greater than or equal to 0.1 micrometers to less than or equal to 10 micrometers.

6. The sunshade according to claim 1, It is characterized in that The thickness of the reflective layer ranges from greater than or equal to 25 nanometers to less than or equal to 500 nanometers.

7. The sunshade according to claim 1, It is characterized in that The reflective layer is one of a metal layer, an alloy layer, a metal oxide layer or an oxide ceramic layer.

8. The sunshade according to claim 1, It is characterized in that The carrier layer is a plastic film.

9. The sunshade according to claim 8, It is characterized in that The thickness of the plastic film is in the range of greater than or equal to 1 micrometer and less than or equal to 25 micrometers.

10. The sunshade according to claim 1, It is characterized in that The thickness of the inner surface layer ranges from greater than or equal to 0.5 mm to less than or equal to 0.7 mm.

11. The sunshade according to claim 1, It is characterized in that The inner surface layer is a knitted piece made of at least one material selected from the group consisting of cotton, linen, polyester, polyvinyl chloride and non-woven fabric.

12. The sunshade according to claim 1, It is characterized in that The thickness of the woven layer ranges from greater than or equal to 0.1 mm to less than or equal to 0.3 mm.

13. The sunshade according to claim 1, It is characterized in that The woven layer is a woven piece made of at least one material selected from the group consisting of cotton, linen, polyester, polyvinyl chloride and non-woven fabric.

14. A method for producing a sunshade curtain, It is characterized in that Used to produce the sunshade curtain according to any one of claims 1 to 13, the production method of the sunshade curtain comprises the following steps: The elastic body is arranged between the woven layer and the inner surface layer to form the sunshade structure; Disposing the reflective layer on the carrier layer to form the reflective structure; The inner side surface of the reflective structure and the outer side surface of the sunshade structure are connected to form the sunshade curtain.

15. The method for producing a sunshade curtain according to claim 14, It is characterized in that The step of arranging the elastic body between the woven layer and the inner surface layer to form the sunshade structure comprises: cleaning the woven layer; Evenly bonding the elastomer to the cleaned woven layer; The inner skin is bonded to the elastomer.

16. The method for producing a sunshade curtain according to claim 14, It is characterized in that The step of arranging the reflective layer on the carrier layer to form the reflective structure comprises: Obtaining a plastic film by casting, wherein the plastic film is the carrier layer; The base material of the reflective layer is plated on the plastic film through a vacuum evaporation process, and the reflective layer is formed on the plastic film.

17. The method for producing a sunshade according to claim 14, It is characterized in that The step of connecting the inner side surface of the reflective structure with the outer side surface of the sunshade structure to form the sunshade curtain comprises: bonding the outer side of the woven layer to the inner side of the carrier layer to form a composite body; Cutting the composite body according to the design requirements, and sealing or wrapping the edges of the cut composite body to form the sunshade curtain; The sunshade is subjected to quality inspection, including but not limited to appearance inspection, size measurement and performance testing.

18. A sunshade production device, It is characterized in that Used to carry out the production method of the sunshade according to any one of claims 14 to 17.

19. A vehicle, It is characterized in that The invention comprises a sunshade curtain as claimed in any one of claims 1 to 13.

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