Agricultural special grass cloth of PET flat yarn

Abstract

The utility model provides a kind of agricultural special grass-preventing cloth of PET flat yarn, it relates to grass-preventing cloth technical field, including grass-preventing cloth main part, grass-preventing cloth main part from top to bottom including waterproof heat preservation layer, woven cloth layer, slow-release layer and waterproof flow drip layer, the flat yarn woven from the flat yarn made of recycled PET bottle piece of woven cloth layer. The first side and the third side of grass-preventing cloth main part are evenly provided with fixed rope, fixed block and sealing sleeve, the fixed block side is equipped with the slot, the slot inside one side wall is fixedly connected with elastic clamping block, the sealing sleeve inside sleeve joint has the mouth rope. The flat yarn made of recycled PET bottle piece is used for weaving the woven cloth layer of grass-preventing cloth, so that the grass-preventing cloth produced has the ultraviolet resistance, antioxidant property of PET material, and mechanical strength is superior to PP, simultaneously without chemical additive, and tensile strength is high.

Description

Technical Field

[0001] This utility model relates to the field of weed control fabric technology, and in particular to an agricultural weed control fabric made of PET flat yarn. Background Technology

[0002] Weed control fabric, also known as weed-control cloth, weed-covering cloth, or weed-covering cloth, works by blocking light and preventing weeds from photosynthesizing, thus controlling weeds. The main types of weed control fabric on the market are woven plastic fabric and non-woven fabric. Because it uses a physical weed-control method that blocks light, it largely eliminates the pollution and hazards of herbicides, making it a safe and reliable weed control method.

[0003] Currently, weed control fabrics on the market are mainly made of three materials: polyethylene, polypropylene, and polylactic acid. They suffer from the following technical drawbacks: Using polyethylene, polypropylene, and polylactic acid as raw materials requires the addition of various antioxidant additives, such as UV protectants. Furthermore, polyethylene, polypropylene, and polylactic acid themselves do not possess UV protection or antioxidant properties, resulting in a short lifespan. Traditional plastic weed control fabrics with added additives cannot effectively degrade in the natural environment, ultimately becoming difficult-to-manage waste and increasing the environmental burden. They also require high fixation; sufficient ground nails or edge-sealing materials are necessary for secure fixation, otherwise they are easily blown away or shifted by the wind, allowing weeds to grow through the gaps.

[0004] Therefore, there is an urgent need for an agricultural-specific weed control fabric made of PET flat yarn to replace the existing weed control fabric, in order to solve the problem that the existing weed control fabric produced by the process requires the addition of additives to achieve UV protection, and that the tensile properties and thickness are mismatched. Utility Model Content

[0005] In view of this, this utility model proposes an agricultural-specific weed control fabric made of PET flat yarn, which aims to solve the problem that existing weed control fabrics produced by existing processes require the addition of additives to achieve UV protection, while the tensile properties and thickness dimensions are mismatched.

[0006] This utility model provides an agricultural weed control fabric made of PET flat yarn, including a weed control fabric body. The weed control fabric body includes, from top to bottom, a waterproof and heat-insulating layer, a woven fabric layer, a slow-release layer and a waterproof dripping layer. The woven fabric layer is woven from flat yarn made of recycled PET bottle flakes. The width of the PET flat yarn is 2-2.4 mm and the thickness is 0.03-0.05 mm.

[0007] Furthermore, the slow-release layer is laminated onto the woven fabric layer, the waterproof and heat-insulating layer is laminated onto the sun-resistant layer, the waterproof dripping layer is coated onto the slow-release layer, and the weed control fabric body is also provided with reinforcing lines, the reinforcing lines including a first reinforcing line and a second reinforcing line, the first reinforcing line and the second reinforcing line intersecting and penetrating the weed control fabric body, the reinforcing lines being made of flat filaments made from recycled PET bottle flakes spirally woven together.

[0008] Furthermore, fixing ropes and fixing blocks are evenly arranged on the first and third sides of the weed control fabric body. A slot is opened on one side of the fixing block, and an elastic block is fixedly connected to one side wall inside the slot.

[0009] Furthermore, the interior of the weed control fabric body is provided with several sets of ventilation grooves, which are arranged alternately inside the weed control fabric body and are connected alternately between each other.

[0010] Furthermore, the outer surface of the elastic block is interference-fitted with the inside of the slot.

[0011] Furthermore, the basis weight per unit area of ​​the woven fabric layer is 45–100 g / m².

[0012] Furthermore, the weaving density of the woven fabric layer is 8×8 threads / inch, 10×10 threads / inch, or 12×12 threads / inch.

[0013] Furthermore, a sealing sleeve is fixedly connected to the top of the first and third sides of the weed control fabric body, and a drawstring is fitted inside the sealing sleeve.

[0014] Furthermore, hollow rivets are evenly arranged on the first and third sides of the weed control fabric body, and the ground nails pass through the rivets to fix it to the ground.

[0015] Furthermore, the sustained-release layer is provided with a sustained-release agent containment line.

[0016] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0017] 1. By using flat filaments made from recycled PET bottle flakes to weave the fabric layers of weed control cloth, the inherent UV resistance and oxidation resistance of PET material are fully utilized, while its mechanical strength is superior to that of traditional PP materials. This allows for the production of weed control cloth with high tensile strength without the addition of any chemical additives. Furthermore, the 100% use of recycled PET bottle flakes effectively reduces white pollution and fundamentally solves the problems of existing PP-based weed control cloth, which requires the addition of additives due to the lack of UV resistance / oxidation resistance in the raw materials themselves, resulting in issues such as volatile additives, short service life, and insufficient environmental friendliness.

[0018] 2. By fixing sealing sleeves to the top of the first and third sides of the main body of the weed control fabric, and inserting a drawstring inside the sealing sleeve, the seal can be made tighter and the protective effect is better during actual use.

[0019] 3. By evenly setting fixing ropes and fixing blocks on the first and third sides of the main body of the weed control fabric, and opening a slot on one side of the fixing block, and fixing an elastic block to the inner side wall of the slot, the weed control fabric can be quickly fixed by fixing ropes and fixing blocks during use, reducing the intensity of manual labor, and supporting quick replacement and removal of the weed control fabric, thus solving the problem of complicated operation steps when laying existing weed control fabric. Attached Figure Description

[0020] Various other advantages and benefits will become apparent to those skilled in the art upon reading the following detailed description of preferred embodiments. The accompanying drawings are for illustrative purposes only and are not intended to limit the scope of the invention. Furthermore, the same reference numerals denote the same parts throughout the drawings. In the drawings:

[0021] Figure 1 A schematic diagram of the overall structure of the agricultural weed control fabric made of PET flat yarn provided in this embodiment of the utility model;

[0022] Figure 2 A partial structural schematic diagram of the PET flat yarn agricultural weed control fabric provided in this embodiment of the utility model;

[0023] Figure 3 This is a cross-sectional structural diagram of the PET flat yarn agricultural weed control fabric provided in this embodiment of the utility model.

[0024] In the diagram: 1 - Main body of weed control fabric; 2 - Reinforcing line; 3 - Sealing sleeve; 4 - Tie rope; 5 - Fixing rope; 6 - Fixing block; 7 - Slot; 8 - Elastic block; 9 - Hollow rivet; 10 - Reinforcing ring; 11 - Arc-shaped protrusion; 12 - Waterproof and heat-insulating layer; 13 - Woven fabric layer; 14 - Slow-release layer; 15 - Waterproof dripping layer. Detailed Implementation

[0025] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but are not intended to limit its scope.

[0026] In the description of this application, it should be understood that the terms "center", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0027] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "a plurality of" means two or more.

[0028] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0029] See Figure 1 As shown, this utility model provides an agricultural weed control fabric made of PET flat yarn, including a weed control fabric body 1. The weed control fabric body 1 includes a waterproof and heat-insulating layer 1212, a woven fabric layer 13, a slow-release layer 14, and a waterproof dripping layer 15 from top to bottom. The woven fabric layer 13 is woven from flat yarns made from recycled PET bottle flakes. The width of the PET flat yarns is 2 to 2.4 mm, and the thickness is 0.03 to 0.05 mm.

[0030] As can be seen from the above, the agricultural weed control fabric made of PET flat yarn disclosed in this application has a composite structure. From top to bottom, it consists of a waterproof and heat-insulating layer 1212, a woven fabric layer 13, a slow-release layer 14, and a waterproof dripping layer 15. The waterproof and heat-insulating layer 1212 is made using an LDPE coating process, providing both heat insulation and water resistance. The woven fabric layer 13 is woven from PET flat yarn and serves as the core load-bearing layer of the weed control fabric. The PET flat yarn is made by recycling PET bottle flakes, dehumidifying and drying them to a dew point of -50°C to remove moisture and impurities, and then extruding them using a twin-screw extruder. After stretching, it is shaped into flat yarns with a width of 2.0 mm and a thickness of 0.03 mm. The slow-release layer 14 includes an organosilicon anti-fogging agent. The waterproof dripping layer 15 is made using an LDPE coating process and is used to prevent condensation.

[0031] As can be seen from the above, this utility model replaces the traditional PP flat yarn with a thickness of 0.06–0.08 mm by using ultra-thin PET flat yarn of 0.03–0.05 mm. Under the premise of ensuring tensile strength, it can reduce the amount of raw materials used, thereby reducing costs; it is naturally resistant to ultraviolet rays, which increases the lifespan compared to PP products; and the raw material is 100% recycled PET bottle flakes, realizing the recycling and reuse of waste mineral water bottles.

[0032] like Figure 3As shown, specifically, the slow-release layer 14 is laminated onto the woven fabric layer 13, the waterproof and heat-insulating layer 1212 is laminated onto the sun-resistant layer, the waterproof dripping layer 15 is coated onto the slow-release layer 14, and the weed control fabric body 1 is also provided with reinforcing lines 2. The reinforcing lines 2 include a first reinforcing line 2 and a second reinforcing line 2. The first reinforcing line 2 and the second reinforcing line 2 cross and penetrate the weed control fabric body 1. The reinforcing lines 2 are made of flat filaments made from recycled PET bottle flakes that are spirally interwoven.

[0033] Understandably, the reinforcing thread 2 is also made of flat filaments from recycled PET bottle flakes, woven in a spiral pattern. Specifically, the first reinforcing thread 2 and the second reinforcing thread 2 intersect and penetrate the main body 1 of the weed control fabric. One first reinforcing thread 2 is placed every 10 centimeters along the length of the weed control fabric, and one second reinforcing thread 2 is placed every 10 centimeters along the width of the weed control fabric. The two are interwoven perpendicularly to each other, forming a grid-like reinforcing structure. During the weaving process, it is ensured that the reinforcing thread 2 is tightly bonded to each layer of material, without any loosening or slippage.

[0034] like Figure 2 As shown, specifically, fixing ropes 5 and fixing blocks 6 are evenly arranged on the first and third sides of the weed control fabric body 1. The fixing blocks 6 have slots 7 on both sides, and an elastic block 8 is provided on one side wall inside the slots 7. The outer surface of the elastic block 8 is fixed to the inside of the fixing block 6 through an interference fit between the arc-shaped protrusion 11 and the slot 7. A reinforcing ring 10 is used to further fix the elastic block 8.

[0035] Understandably, the fixing block 6 is made of engineering plastic, which has advantages such as light weight, high strength, and corrosion resistance. The fixing block 6 is rectangular in shape. The four walls of the recessed area of ​​the fixing block 6 are provided with slots 7 and elastic blocks 8. The elastic blocks 8 are made of rubber, possessing good elasticity and friction. The elastic blocks 8 are wedge-shaped, with their outer surface interlocking with the interior of the fixing block 6; that is, the outer diameter of the elastic blocks 8 is slightly larger than the inner diameter of the fixing block 6. When the elastic blocks 8 are pressed into the fixing block 6, they can produce a certain amount of elastic deformation, thus tightly locking into the slots 7, forming a stable connection.

[0036] On the first and third sides of the weed control fabric body 1, a number of fixing blocks 6 are evenly arranged. During installation, the fixing blocks 6 are fixed to the weed control fabric body 1 by hot melting or adhesive bonding to ensure that the fixing blocks 6 are firmly connected to the weed control fabric body 1 and will not fall off during use.

[0037] Specifically, the interior of the weed control fabric body 1 is provided with several sets of ventilation grooves, which are arranged alternately inside the weed control fabric body 1 and are connected alternately between each other.

[0038] Therefore, it can be seen that several sets of staggered air vents are provided inside the main body 1 of the weed control fabric, and each set of air vents is designed in a wavy shape to increase the contact area between the air vents and the soil, while allowing air to flow more smoothly within the air vents. Preferably, a single air vent has a width of 5 mm, a depth of 3 mm, a wave wavelength of 20 mm, and a wave height of 2 mm.

[0039] Specifically, the woven fabric layer 13 has a basis weight of 45-100 g / m². The weave density of the woven fabric layer 13 is 8×8 threads / inch, 10×10 threads / inch, or 12×12 threads / inch. The slow-release layer contains slow-release additive containment lines to continuously act on the waterproof drip layer 15 to extend the anti-fogging effect.

[0040] As can be seen from the above, the basis weight per unit area of ​​the 13-sided woven fabric layer ranges from 45 to 100 g / m². 2 The weaving density is such that the woven fabric layer 13 has sufficient strength and durability without being excessively heavy, thus avoiding impacting the flexibility and cost of use. The weaving density is 8×8 threads / inch, 10×10 threads / inch, or 12×12 threads / inch. This ensures a moderate porosity in the woven fabric, guaranteeing good air permeability to meet the gas exchange needs of plant growth, while also providing sufficient structural stability to prevent deformation and damage due to external stretching.

[0041] Specifically, the top ends of the first and third sides of the weed control fabric body 1 are also fixedly connected to sealing sleeves 3, and a drawstring rope 4 is sleeved inside the sealing sleeves 3. Hollow rivets 9 are also evenly arranged on the first and third sides of the weed control fabric body 1, and ground nails pass through the rivets to fix it to the ground.

[0042] As shown above, sealing sleeves 3 are sewn to the top edges of the first and third sides of the weed control fabric body 1. The sealing sleeves 3 are made of the same material as the weed control fabric body 1, are 5 cm wide, and have the same length as the first and third sides, ensuring complete coverage of the top edges of the first and third sides. A drawstring 4 is fitted inside the sealing sleeve 3. The drawstring 4 is a 2 mm diameter nylon rope, 20 cm longer than the first and third sides, to provide sufficient length for tightening. The drawstring 4 is threaded through the sealing sleeve 3, providing a 20 cm overlap length for subsequent operations.

[0043] Hollow rivets 9 are evenly arranged on the first and third sides of the weed control fabric body 1. The hollow rivets 9 are made of stainless steel, with an outer diameter of 8 mm, an inner diameter of 5 mm, and a height of 6 mm. A hollow rivet 9 is placed every 30 cm along the length of the first and third sides to ensure even distribution and provide stable fixing points. Using a dedicated rivet installation tool, the hollow rivets 9 are securely fixed to the first and third sides of the weed control fabric body 1. During installation, ensure that the hollow part of the rivet penetrates the weed control fabric body 1 so that the ground stake can pass through smoothly.

[0044] When using the weed control fabric disclosed in this application, the specific usage procedure is as follows: unfold the main body 1 of the weed control fabric and lay it flat on the ground area where weed control is needed, ensuring that the first and third sides are located on both sides of the weed control fabric. Pull the two ends of the drawstring 4 outside the sealing sleeve 3 at the top of the first and third sides to tighten the sealing sleeve 3, so that the edge of the weed control fabric fits tightly against the ground, preventing weeds from growing from the edge gaps. After tightening, tie the two ends of the drawstring 4 to secure it.

[0045] Use ground stakes to drive through the hollow rivets 9 on the first and third sides, and drive the stakes into the ground to secure the weed control fabric firmly to the ground. Use steel nails that are 15 cm long and 5 mm in diameter to ensure they penetrate the ground deeply and provide sufficient fixing force.

[0046] It will be understood by those skilled in the art that the above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An agricultural weed control fabric made of PET flat yarn, characterized in that, The device includes a weed control fabric body, which comprises, from top to bottom, a waterproof and heat-insulating layer, a woven fabric layer, a slow-release layer, and a waterproof and drip-proof layer. The weed control fabric body is also provided with reinforcing lines, which include a first reinforcing line and a second reinforcing line. The first reinforcing line and the second reinforcing line intersect and penetrate the weed control fabric body. Both the reinforcing lines and the woven fabric layer are made of flat filaments made from recycled PET bottle flakes that are spirally interwoven.

2. The agricultural weed control fabric made of PET flat yarn according to claim 1, characterized in that, The slow-release layer is laminated onto the woven fabric layer, the waterproof and heat-insulating layer is laminated onto the sun-resistant layer, and the waterproof dripping layer is coated onto the slow-release layer. The PET flat yarn has a width of 2-2.4 mm and a thickness of 0.03-0.05 mm.

3. The agricultural weed control fabric made of PET flat yarn according to claim 1, characterized in that, The first and third sides of the weed control fabric body are also fixedly provided with sealing sleeves, and a drawstring is sleeved inside the sealing sleeve.

4. The agricultural weed control fabric made of PET flat yarn according to claim 1, characterized in that, The main body of the weed control fabric has several sets of ventilation grooves inside, which are arranged alternately inside the main body of the weed control fabric and are connected to each other alternately.

5. The agricultural weed control fabric made of PET flat yarn according to claim 1, characterized in that, The woven fabric layer has a unit area weight of 45-100 g / m². 2 .

6. The agricultural weed control fabric made of PET flat yarn according to claim 1, characterized in that, The weaving density of the woven fabric layer is 8×8 threads / inch, 10×10 threads / inch, or 12×12 threads / inch.

7. The agricultural weed control fabric made of PET flat yarn according to claim 1, characterized in that, The sealing sleeves on the first and third sides of the weed control fabric body are also evenly provided with fixing ropes and fixing blocks. A slot is opened on one side of the fixing block, and an elastic block is fixedly connected to one side wall inside the slot.

8. The agricultural weed control fabric made of PET flat yarn according to claim 7, characterized in that, The outer surface of the elastic block is interference-fitted with the inside of the slot.

9. The agricultural weed control fabric made of PET flat yarn according to claim 7, characterized in that, Hollow rivets are evenly arranged on the outer side of the sealing sleeves on the first and third sides of the weed control fabric body, and ground nails can pass through the hollow rivets to fix it to the ground.

10. The agricultural weed control fabric made of PET flat yarn according to claim 1, characterized in that, The sustained-release layer is provided with a sustained-release agent containment line.

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