Low-E high-light-transmittance cooling energy-saving curtain

Abstract

The utility model is suitable for the technical field of curtains, and provides a Low-E high-light-transmittance cooling energy-saving curtain, which comprises a cloth body, the cloth body comprises film strips and replacement strips, the film strips and the replacement strips are arranged to be strip-shaped, and the film strips and the replacement strips are interwoven and connected through warps and wefts to form a woven structure; the weaving structure is plain weaving or twill weaving; the film strip comprises a PET base film and an anti-infrared coating. And the warp yarns and the weft yarns are made of polyester filament yarns. The width of the film strip is the same as that of the replacement strip, and the length of the film strip is the same as that of the replacement strip. The device solves the technical problem that the greenhouse curtain is difficult to give consideration to high light transmission and high heat insulation, the ATO nano heat insulation layer is coated on the PET base film, and a replacement strip structure is introduced, so that the effects of remarkably blocking infrared radiation, improving the cooling performance and enhancing the overall reflectivity and the wind-resistant structural strength of the curtain are achieved while the illumination requirement of plants is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of screen technology, and more specifically, it relates to a Low-E high light transmittance cooling and energy-saving screen. Background Technology

[0002] Greenhouses, as crucial facilities in modern agricultural production, are widely used for cultivating crops such as vegetables and fruits. Environmental control within the greenhouse is vital for crop growth; the greenhouse's shading and light transmission functions directly affect photosynthesis and the crop's growth cycle. Therefore, greenhouse curtains, as an important component of greenhouse architecture, must possess excellent light transmission and heat insulation to meet the temperature control and light requirements within the greenhouse. Traditional greenhouse curtains often use materials such as polyethylene (PE) and polypropylene (PP). While these materials have good light transmission, they cannot effectively insulate against external heat in high-temperature environments, leading to excessively high temperatures inside the greenhouse. This negatively impacts crop growth, especially in summer, where excessively high internal temperatures can easily cause heat damage, affecting crop yield and quality.

[0003] While most existing greenhouse curtains offer some shading or light transmission, they cannot simultaneously achieve good heat insulation and light transmission. In summer, greenhouses require ample sunlight for photosynthesis, but also need effective heat insulation. However, current curtain technologies often only achieve good results in one aspect. For example, some curtain materials provide good shading but sacrifice light transmission, leading to insufficient light for crops; or some curtains ensure high light transmission but fail to effectively insulate against heat, resulting in excessively high temperatures inside the greenhouse and negatively impacting crops. Therefore, existing greenhouse curtain technologies suffer from a technical bottleneck in simultaneously balancing light transmission and heat insulation.

[0004] Based on the above problems, this application proposes a Low-E high light transmittance cooling and energy-saving curtain. Utility Model Content

[0005] To address the shortcomings of existing technologies, the purpose of this invention is to provide a Low-E high-transmittance cooling and energy-saving curtain that can achieve synergistic control of high light transmittance and high heat insulation, effectively regulate the light and heat environment inside the greenhouse, and at the same time have good structural stability and wind resistance.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] A Low-E high light transmittance cooling and energy-saving curtain includes a fabric body, the fabric body including a membrane strip and a replacement strip, the membrane strip and the replacement strip are configured as long strips, and the membrane strip and the replacement strip are connected by interlacing warp and weft threads to form a woven structure;

[0008] The weaving structure is plain weave or twill weave;

[0009] The membrane strip includes a PET base film.

[0010] The present invention is further configured such that the warp and weft threads are made of polyester filament.

[0011] The present invention is further configured such that the width of the membrane strip and the replacement strip are the same, and the length of the membrane strip is the same as that of the replacement strip.

[0012] The present invention is further configured such that the infrared protection treatment of the PET base film is provided with infrared protection coatings on both the upper and lower surfaces.

[0013] The present invention is further configured such that the infrared protection treatment of the PET base film is achieved by adding ATO material to the PET base film.

[0014] The present invention is further configured such that, in the braided structure, the warp and weft threads are interwoven in a twill pattern.

[0015] The present invention is further configured such that, in the weaving structure, the warp and weft threads are interwoven in a plain weave.

[0016] In summary, this application includes at least one of the following beneficial technical effects:

[0017] 1. This utility model effectively improves the infrared blocking capability of the curtain in the near-infrared band (below 1000nm) by performing infrared protection treatment on the PET base film, while maintaining good visible light transmittance. This achieves the goal of significantly reducing heat accumulation in the greenhouse while ensuring light for plants, thus achieving the purpose of cooling and energy saving.

[0018] 2. Replacement strip 2 can be made of materials such as aluminum foil strips, PET white film strips, PET transparent film strips, or PET frosted film strips, depending on actual needs, offering excellent functional expandability. Different materials for the replacement strips allow for targeted optimization in terms of light transmittance, heat shading, reflectivity, light softening, and structural strength, improving the curtain's performance and adaptability in various environments. By setting up multiple types of replacement strips, this energy-saving curtain can meet high light transmittance requirements while also possessing excellent heat shading, wind resistance, and light softening effects, effectively improving the energy efficiency and operational stability of greenhouses or building spaces. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of a Low-E high light transmittance cooling and energy-saving curtain according to the present invention.

[0020] Figure 2 This is a schematic diagram of the plain weave fabric structure in this utility model.

[0021] Figure 3 This is a schematic diagram of the twill weave structure of the fabric in this utility model.

[0022] Figure 4 This is a top view of a Low-E high-transmittance cooling and energy-saving curtain according to this utility model.

[0023] Explanation of reference numerals in the attached diagram: 1. Film strip; 11. PET base film; 12. Infrared-proof coating; 2. Replacement strip; 3. Warp; 4. Weft. Detailed Implementation

[0024] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0025] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0026] Example 1, please refer to Figure 1-4 The present invention provides the following technical solution:

[0027] This utility model provides a Low-E high light transmittance cooling and energy-saving curtain, which is suitable for greenhouses, building shading and energy-saving places. Through structural design, it achieves good light transmittance, heat shading and heat preservation performance.

[0028] Specifically, the energy-saving curtain includes a fabric body, which includes membrane strips 1 and replacement strips 2. Both membrane strips 1 and replacement strips 2 are long strip structures, arranged alternately and connected by interlacing warp threads 3 and weft threads 4 to form an overall stable woven structure.

[0029] The membrane strip 1 is made of PET base film 11, which is a light-transmitting material that allows light to pass through the membrane strip 1, so as not to affect the natural light required by the plants.

[0030] To achieve good heat insulation and cooling effects, the PET base film 11 undergoes infrared protection treatment. This infrared protection treatment can be achieved in one of two ways: first, by coating the upper and lower surfaces of the PET base film 11 with an infrared protection coating 12; second, by doping the PET base film 11 with ATO material. The infrared protection coating 12 has the function of absorbing infrared rays, effectively blocking the infrared band of solar radiation, thereby reducing heat transfer.

[0031] In practical use, the membrane strip 1, while ensuring light transmittance, can significantly reduce the entry of external heat, making it particularly suitable for periods of high temperature, such as early summer mornings, when plants primarily require light rather than heat. Through this structural design, the curtain effectively inhibits heat conduction while providing ample light, helping to maintain a cool greenhouse or indoor environment, thereby improving crop growth efficiency and energy conservation.

[0032] Specifically, the infrared-protective coating 12 is configured as an ATO (Antimony Tin Oxide) nano-insulating medium. This coating not only possesses the transparency and excellent thermal insulation properties of nano-ATO materials, but also has advantages that differ from traditional nano-ATO. Especially in the near-infrared region below 1000nm, it can significantly reduce the transmission of near-infrared radiation, providing a more efficient thermal insulation effect.

[0033] Replacement strip 2 is made of aluminum foil to enhance the reflectivity and rigidity of the greenhouse tarpaulin. Aluminum foil has excellent reflectivity, reflecting a significant amount of solar radiation, especially the infrared portion. By incorporating this replacement strip, the greenhouse tarpaulin effectively reduces heat transfer, maintaining a stable internal temperature. Furthermore, the aluminum foil enhances the structural rigidity of the tarpaulin, making it more robust and wind-resistant. This is crucial for greenhouse tarpaulins, especially in windy environments, where the aluminum foil helps maintain stability and prevents deformation or damage caused by strong winds.

[0034] Both warp threads 3 and weft threads 4 are made of polyester filaments, which have good tensile strength and aging resistance. The width and length of membrane strip 1 and replacement strip 2 are the same, so as to weave a uniform overall curtain structure.

[0035] In this embodiment, the weaving structure of the fabric can be selected according to requirements, and can be plain weave or twill weave.

[0036] Please see Figure 2 The weft threads (4) and warp threads (3) are arranged in a twill pattern, specifically, each weft thread crosses two warp threads in sequence and is shifted one unit to the left or right in the next row, thus forming a diagonally arranged twill weave on the fabric surface. Compared to plain weave, this weave method has a higher weave density, resulting in better toughness and light-blocking properties for the curtain.

[0037] Please see Figure 3 The weft yarns (4) and warp yarns (3) are arranged in a plain weave pattern, specifically, each weft yarn alternately interlaces with the adjacent warp yarn, forming a tight and regular mesh structure. Compared to twill weave, this weave method has a lower weave density and better breathability, making it suitable for applications requiring good breathability.

[0038] In Example 2, the replacement strip 2 is made of PET white film strip material. When the replacement strip 2 is made of PET white film strip material, the replacement strip 2 still maintains good flexibility and processing adaptability, and its surface is white and opaque, which can effectively reflect some visible light and infrared light, thereby improving the sunshade performance of the screen.

[0039] Compared to aluminum foil strips, PET white film strips are lighter, making them suitable for applications requiring lightweight materials. Because the surface of the white film has a certain degree of diffuse reflection, it can prevent strong sunlight from creating glare or light spots inside the greenhouse, thus providing softer lighting conditions for crop growth.

[0040] In addition, the PET white film strip has a certain degree of weather resistance and moisture resistance, and is not prone to deformation or aging in humid and hot environments, further enhancing the overall stability and service life of the curtain.

[0041] In Example 3, the replacement strip 2 is set as a PET transparent film strip. When the replacement strip 2 is set as a PET transparent film strip material, the light transmittance increases and the overall visible light transmittance of the curtain is further improved, which is conducive to maximizing the introduction of natural light and meeting the growth needs of crops in rainy weather or when there is insufficient light.

[0042] The addition of transparent film strips gives local areas of the fabric visual and optical properties similar to a fully transparent film, which helps to reduce shadow areas in the shed and improve the uniformity of lighting.

[0043] Furthermore, due to the high mechanical strength and UV resistance of PET transparent film, the light transmittance of the curtain can be improved without sacrificing weather resistance. This structure is particularly suitable for scenarios with less sunshine, such as winter or high-latitude regions, further enhancing photosynthetic efficiency while ensuring heat preservation, thereby promoting crop yield.

[0044] In Example 4, the replacement strip 2 is set as a PET frosted film strip. When the replacement strip 2 is made of PET frosted film strip material, the surface of the curtain presents a uniform matte effect, which can effectively achieve soft light treatment and avoid direct strong light from scorching crops or causing light spot interference.

[0045] PET frosted film strips have excellent diffuse reflection properties, which can diffuse the light entering the screen, thereby improving the uniformity and comfort of lighting inside the greenhouse. They are suitable for seedling stages or specific crop varieties that require soft lighting.

[0046] Meanwhile, the frosted film surface has certain anti-glare properties, which can reduce the impact of light reflection on indoor or human vision, making it suitable for complex environments that accommodate both manual labor and crop growth. This material also possesses good wear resistance and stain resistance, facilitating long-term use and maintenance.

[0047] Obviously, the embodiments described above are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of this utility model.

Claims

1. A Low-E high-transmittance, heat-reducing, and energy-saving screen, comprising a fabric body, characterized in that: The fabric includes a membrane strip (1) and a replacement strip (2), the membrane strip (1) and the replacement strip (2) are set in the shape of long strips, and the membrane strip (1) and the replacement strip (2) are interwoven and connected by warp threads (3) and weft threads (4) to form a woven structure; The weaving structure is plain weave or twill weave; The membrane strip (1) includes a PET base film (11), which is treated with infrared protection.

2. The Low-E high light transmittance cooling and energy-saving curtain according to claim 1, characterized in that: The warp (3) and weft (4) are made of polyester filament.

3. The Low-E high light transmittance cooling and energy-saving curtain according to claim 1, characterized in that: The membrane strip (1) and the replacement strip (2) have the same width, and the length of the membrane strip (1) is the same as that of the replacement strip (2).

4. The Low-E high light transmittance cooling and energy-saving curtain according to claim 1, characterized in that: The infrared protection treatment of the PET base film (11) is that the upper and lower surfaces are respectively provided with infrared protection coatings (12).

5. The Low-E high light transmittance cooling and energy-saving curtain according to claim 1, characterized in that: The infrared protection treatment of the PET base film (11) is to add ATO material inside the PET base film (11).

6. The Low-E high light transmittance cooling and energy-saving curtain according to claim 1, characterized in that: In the woven structure, the warp (3) and weft (4) are interwoven in a twill pattern.

7. The Low-E high light transmittance cooling and energy-saving curtain according to claim 1, characterized in that: In the woven structure, the warp (3) and weft (4) are interwoven in a plain weave.

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