A polyester plain woven fabric with insect-proof function

Abstract

The present application relates to the technical field of polyester plain weave grey cloth, and discloses a polyester plain weave grey cloth with insect prevention function, which comprises an inner high-density plain weave surface layer, an intermediate powder storage layer and an outer breathable surface layer which are sequentially connected. The intermediate powder storage layer comprises a carrier layer and an insect prevention powder layer which is adsorbed on the surface of the carrier layer, and the insect prevention powder layer can be reloaded according to external conditions. The present application can repeatedly load the insect prevention powder through simple powder scattering and light heating, and the cloth can be used for multiple times even after multiple washing, thereby effectively prolonging the life cycle of the product.

Description

Technical Field

[0001] This invention relates to the field of polyester woven fabric technology, and in particular to a polyester woven fabric with insect-repellent function. Background Technology

[0002] With global climate change and increasing demand for warehousing and logistics, pests (such as clothes moths, mites, and cockroaches) are causing increasingly serious damage to textiles, food storage, and outdoor equipment. Traditional insect-repellent textiles mainly achieve their insect-repellent function through chemical impregnation, physical barriers, or composite natural materials, but the following technical bottlenecks still exist: Short-term effectiveness of chemical insecticides: Chemical agents such as permethrin and pyrethroids are volatile, and the insect control rate drops to below 50% after 5 washes (tested in GB / T 24253-2009).

[0003] The instability of natural insect-repellent materials: Plant extracts (such as eucalyptus oil and azadirachtin) are easily decomposed by heat, and the insect-proof period is shortened to 7-10 days at 40℃ (compared to 30 days for chemical agents).

[0004] The economic and environmental problems of non-reusable products: Disposable insect-proof textiles (such as mothproof bags) need to be replaced frequently, increasing the life cycle cost per unit.

[0005] Therefore, the current market urgently needs a functional textile that is long-lasting, environmentally friendly, and can be reloaded with insect-repellent active ingredients. Summary of the Invention

[0006] The purpose of this invention is to solve the problems existing in the prior art and to propose a polyester woven fabric with insect-repellent function.

[0007] To achieve the above objectives, the present invention adopts the following technical solution: A polyester woven fabric with insect-repellent function includes an inner high-density woven surface layer, an intermediate powder storage layer and an outer breathable surface layer connected in sequence. The intermediate powder storage layer includes a carrier layer and an insect-repellent powder layer adsorbed on the surface of the carrier layer. The insect-repellent powder layer can be reloaded as external conditions change.

[0008] Preferably, the carrier layer includes a photoresponsive adhesive layer composed of polydopamine-coated carbon nanotubes and hot melt adhesive, wherein the mass ratio of carbon nanotubes to hot melt adhesive is 1:5-1:10.

[0009] Preferably, when the carrier layer is exposed to sunlight, the carrier layer softens and becomes more viscous, thereby achieving adhesion of the insect-repellent powder layer.

[0010] Preferably, the outer breathable surface layer is a gradient pore size woven structure, comprising: Surface open area: diamond-shaped mesh formed by plain weave; Powder guiding channels: V-shaped grooves formed by twill weave, penetrating from the outer layer to the middle powder storage layer.

[0011] Preferably, the aperture of the diamond-shaped mesh is between 200μm and 500μm, and its area accounts for 60%-80% of the area of ​​the outer breathable surface layer.

[0012] Preferably, the width of the V-shaped groove is between 100μm and 200μm, and the depth is between 50μm and 100μm.

[0013] Preferably, the insect-repellent powder layer uses powdered pyrethroids or azadirachtin with a particle size of less than 100 μm, which can enter the carrier layer along the powder guiding channel by gravity or slight vibration.

[0014] Preferably, the insect-repellent powder layer uses Fe3O4 nanoparticles and stearic acid to form a coating layer.

[0015] Preferably, the carrier layer further includes nickel-plated polyester staple fibers embedded within the carrier layer; When exposed to sunlight, the photothermal responsive adhesive softens and encapsulates the insect-repellent powder, while the magnetic fiber mesh generates a directional magnetic field that constrains the distribution of the powder.

[0016] Preferably, the outer breathable surface layer is a polyester monofilament woven layer with a light transmittance of ≥70%, a monofilament diameter of ≤20μm, and a warp density of 80-100 threads / inch.

[0017] Compared with the prior art, the beneficial effects of the present invention are: When in use, the present invention can repeatedly apply insect-repellent powder by simply sprinkling powder and heating with light, so that the fabric can be used multiple times even after multiple washes, effectively extending the product's life cycle. Attached Figure Description

[0018] Figure 1 This is a schematic diagram illustrating the composition of a polyester woven fabric with insect-repellent function proposed in this invention.

[0019] In the diagram: 1. Inner high-density woven surface layer; 2. Middle powder storage layer; 3. Outer breathable surface layer; 4. Insect-repellent powder layer; 5. Carrier layer; 6. Surface open area; 7. Powder guiding channel. Detailed Implementation

[0020] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0021] Reference Figure 1 A polyester woven fabric with insect-repellent function includes an inner high-density woven surface layer 1, an intermediate powder storage layer 2 and an outer breathable surface layer 3 connected in sequence. The intermediate powder storage layer 2 includes a carrier layer 5 and an insect-repellent powder layer 4 adsorbed on the surface of the carrier layer 5. The insect-repellent powder layer 4 can be reloaded as external conditions change.

[0022] When in use, the present invention can repeatedly apply insect-repellent powder by simply sprinkling powder and heating with light, so that the fabric can be used multiple times even after multiple washes, effectively extending the product's life cycle.

[0023] The specific reloading process is as follows: (a) Sprinkle the insect-repellent powder evenly on the surface of the outer breathable layer 3; (b) The powder is assisted to fall along the powder guiding channel 7 by mechanical vibration with a frequency of 5-10 Hz and an amplitude of 1-3 mm; (c) Irradiate under natural light for 20-40 minutes, or heat to 50-60℃ for 10 minutes to activate the adhesive function of carrier layer 5; (d) Insect repellent powder forms an insect repellent powder layer 4 on the carrier layer 5.

[0024] In this embodiment, the carrier layer 5 includes a photoresponsive adhesive layer, which is composed of polydopamine-coated carbon nanotubes and hot melt adhesive. The mass ratio of carbon nanotubes to hot melt adhesive is 1:5-1:10. When exposed to sunlight or heated (≥50℃), the photothermal responsive adhesive softens and encapsulates the insect-repellent powder, while the magnetic fiber mesh generates a directional magnetic field to constrain the distribution of the powder.

[0025] In this embodiment, the outer breathable surface layer 3 is a gradient pore size woven structure, including: Surface open area 6: diamond-shaped mesh formed by plain weave; Powder guiding channel 7: V-shaped grooves formed by twill weave, penetrating from the outer layer to the middle powder storage layer 2.

[0026] In this embodiment, the aperture of the diamond-shaped mesh is between 200μm and 500μm, and its area accounts for 60%-80% of the area of ​​the outer breathable surface layer 3; The width of the V-shaped groove is between 100μm and 200μm, and the depth is between 50μm and 100μm; the insect-repellent powder layer 4 uses powdered pyrethroids or azadirachtin, wherein the active ingredient accounts for 60-80%, and the powder particle size is less than 100μm. The diamond-shaped mesh provides large openings to facilitate the initial distribution of powder, and the pore size is larger than the powder particle size to avoid clogging. The V-shaped powder guiding channel 7 utilizes the geometric guidance of the twill structure to guide the powder to the middle layer. The channel width matches the powder particle size to prevent jamming.

[0027] The insect-repellent powder can be guided into the carrier layer 5 through the powder guiding channel 7 by gravity or slight vibration, and due to size limitations, once the insect-repellent powder enters the carrier layer 5, it is difficult for it to fall out from the V-shaped groove.

[0028] In this embodiment, the insect-repellent powder layer 4 is formed by Fe3O4 nanoparticles and stearic acid to form a coating layer with a thickness of 1-5μm and a powder saturation magnetization intensity ≥30 emu / g. The Fe3O4 shell provides controllable magnetism, and the stearic acid coating reduces the van der Waals forces between powders and improves flowability.

[0029] In this embodiment, the carrier layer 5 further includes nickel-plated polyester short fibers embedded in the carrier layer 5, with a diameter of 20μm-50μm and a magnetic induction intensity of 0.01-0.05T; When exposed to sunlight, the photothermal responsive adhesive softens and encapsulates the insect-repellent powder, while the magnetic fiber mesh generates a directional magnetic field to constrain the powder distribution and prevent the powder from agglomerating or shifting within the carrier layer 5.

[0030] In this embodiment, the outer breathable surface layer 3 is a polyester monofilament woven layer with a light transmittance of ≥70%, a monofilament diameter of ≤20μm, and a warp density of 80-100 threads / inch.

[0031] Example: Household insect-proof curtains: Users can refresh the insect-proof effect by regularly sprinkling powder and patting them; no disassembly and washing are required. Outdoor insect-proof tent: The insect-proof powder is automatically fixed and replenished by sunlight, making it suitable for outdoor environments; Agricultural insect-proof cover: Mechanical vibration assists in large-scale powder loading, improving operational efficiency.

[0032] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A polyester woven fabric with insect-repellent function, characterized in that: It includes an inner high-density woven surface layer (1), an intermediate powder storage layer (2), and an outer breathable surface layer (3) that are connected in sequence. The intermediate powder storage layer (2) includes a carrier layer (5) and an insect-repellent powder layer (4) adsorbed on the surface of the carrier layer (5). The carrier layer (5) includes a photoresponsive adhesive layer, which is composed of polydopamine-coated carbon nanotubes and hot melt adhesive, with a mass ratio of carbon nanotubes to hot melt adhesive of 1:5-1:

10. The outer breathable surface layer (3) is a gradient pore size woven structure, including: Surface open area (6): diamond-shaped mesh formed by plain weave; Powder guiding channel (7): V-shaped grooves formed by twill weave, penetrating from the outer layer to the middle powder storage layer (2); The aperture of the rhomboid mesh is between 200μm and 500μm, and the area of ​​the rhomboid mesh accounts for 60%-80% of the area of ​​the outer breathable surface layer (3). The width of the V-shaped groove is between 100μm and 200μm, and the depth is between 50μm and 100μm. The insect-repellent powder layer (4) uses powdered pyrethroids or azadirachtin with a particle size of less than 100 μm. The insect-repellent powder can enter the carrier layer (5) through the powder guiding channel (7) by gravity or mechanical vibration with a frequency of 5-10 Hz and an amplitude of 1-3 mm. The insect-repellent powder layer (4) is formed by Fe3O4 nanoparticles and stearic acid to form a coating layer. The carrier layer (5) also includes nickel-plated polyester staple fibers embedded in the carrier layer (5); When exposed to sunlight, the photoresponsive adhesive layer softens and encapsulates the insect-repellent powder, while the nickel-plated polyester staple fibers generate a directional magnetic field that constrains the distribution of the powder.

2. The polyester woven fabric with insect-repellent function according to claim 1, characterized in that: Under sunlight, the carrier layer (5) softens and becomes more viscous, thus achieving adhesion of the insect-repellent powder layer (4).

3. The polyester woven fabric with insect-repellent function according to claim 2, characterized in that: The outer breathable surface layer (3) is a polyester monofilament woven layer with a light transmittance of ≥70%, a monofilament diameter of ≤20μm, and a warp density of 80-100 threads / inch.

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