Moisture-retaining and fertilizer-retaining weed control cloth

Abstract

The application relates to the field of cloth technology, in particular to a moisture and fertilizer preserving grass preventing cloth. The cloth body is sequentially provided with a reflecting layer, a waterproof layer, a water absorbing structure layer and a reinforcing layer from an outer surface to an inner surface, at least one water guide hole is arranged in the reflecting layer, the waterproof layer and the reinforcing layer, and the water guide hole of the reflecting layer is communicated with the water guide hole of the waterproof layer. By arranging the water guide holes communicated with each other in the reflecting layer, the waterproof layer and the reinforcing layer, and in combination with the water absorbing structure layer, effective water conduction and penetration are realized, and the problems of surface water accumulation or water shortage at plant roots caused by the lack of a water draining and ventilating mechanism of the existing grass preventing cloth are solved.

Description

Technical Field

[0001] This application relates to the field of fabric technology, and in particular to a weed control fabric that retains moisture and fertilizer. Background Technology

[0002] Weed control fabric is a special functional fabric that plays an important role in agricultural production and has broad application prospects and significant economic benefits. By fully utilizing its functions of moisture retention, fertilizer retention, weed control, soil temperature regulation, and soil environment improvement, weed control fabric can provide better growing conditions for crops, increase the yield and quality of agricultural products, and promote the sustainable development of agricultural production.

[0003] To achieve effective moisture retention and fertilizer retention, weed control fabrics are typically manufactured using a multi-layered, waterproof composite structure. Specifically, weed control fabrics generally consist of three layers: the top layer is a non-woven fabric made of synthetic resin materials such as polypropylene. This layer primarily functions to control weeds, allow for air permeability, and provide protection, preventing weeds from penetrating and inhibiting their growth. The middle layer is a ground cover made of waterproof materials such as polyvinyl chloride. This layer primarily functions to waterproof and retain moisture, maintaining soil humidity and providing a good water environment for crop growth. Simultaneously, it prevents excessive moisture from causing soil compaction and root rot.

[0004] The lower layer is also a non-woven fabric layer made of synthetic resin materials such as polypropylene. This layer mainly serves to enhance tensile strength and stability, making the weed control fabric less prone to damage and deformation during use.

[0005] While existing weed control fabrics can meet agricultural needs to some extent, a common problem has emerged in practical applications—the lack of an effective drainage and aeration mechanism. Because the existing fully enclosed structure restricts water exchange, rainwater and other irrigation water cannot effectively penetrate the soil. Over time, this can lead to surface waterlogging or root dehydration, severely impacting crop growth and development. Therefore, it is crucial to introduce new design concepts while preserving the existing advantages. Utility Model Content

[0006] In order to further improve the permeability of weed control fabric while maintaining moisture and fertilizer retention, this application provides a moisture-retaining and fertilizer-retaining weed control fabric.

[0007] A moisture-retaining and fertilizer-retaining weed control fabric includes a fabric body, wherein a reflective layer, a waterproof layer, a water-absorbing structural layer and a reinforcing layer are sequentially disposed from the outer surface to the inner surface of the fabric body, and each of the reflective layer, the waterproof layer and the reinforcing layer has at least one water-guiding hole, and the water-guiding hole of the reflective layer is connected to the water-guiding hole of the waterproof layer.

[0008] The water guide holes in the reinforcing layer are all funnel-shaped water guide holes, and the wide inlet of the funnel-shaped water guide holes in the reinforcing layer is close to the water-absorbing structure layer;

[0009] The absorbent structural layer is provided with an absorbent membrane layer, a mesh layer, and a non-woven fabric layer in sequence. The absorbent membrane layer is connected to the waterproof layer, and the non-woven fabric layer is connected to the reinforcing layer.

[0010] By adopting the above technical solutions, weed control fabric achieves high permeability and excellent moisture and fertilizer retention. Specifically, the reflective layer not only protects the internal structure but also prevents light penetration to enhance reflectivity. The reflective properties significantly inhibit weed growth; specifically, reflected light interferes with weed photosynthesis, slows their growth, and can even cause them to wither and die. Simultaneously, its drainage hole design guides water flow downwards. The waterproof layer prevents water and fertilizer loss. The absorbent layer absorbs and stores water, helping to maintain soil moisture. The reinforcing layer improves the product's mechanical strength, preventing damage from external stretching, and its drainage holes ensure smooth water drainage. This multi-layered, synergistic design significantly improves the drainage problems of traditional weed control fabric, promoting healthy plant growth.

[0011] Furthermore, the reinforcing layer of the weed control fabric features funnel-shaped water-guiding holes with wide inlets facing the absorbent structural layer. This effectively guides moisture out of the absorbent structural layer, improving the overall permeability of the fabric. Simultaneously, this design reduces backflow during moisture evaporation, enhancing moisture retention. Specifically, the funnel-shaped water-guiding holes concentrate water flow towards a narrow outlet, accelerating the drainage process, while the wide inlet design helps expand the collection area, further optimizing permeability efficiency.

[0012] Furthermore, the absorbent structural layer is composed of an absorbent membrane layer, a mesh layer, and a non-woven fabric layer in sequence, with the absorbent membrane layer connected to the waterproof layer and the non-woven fabric layer connected to the reinforcing layer. This design allows the absorbent membrane layer to efficiently absorb moisture, while the mesh layer and non-woven fabric layer form an effective water storage and conduction space, thereby significantly improving the overall water permeability and storage capacity of the weed control fabric.

[0013] Specifically, the absorbent membrane layer provides strong water absorption, the mesh layer enhances structural stability and assists in water conduction, and the non-woven fabric layer further optimizes water storage and transmission. The synergistic effect of the three significantly improves the problem of plant water shortage caused by the poor water permeability of traditional weed control fabric, while also playing a role in moisturizing and fertilizing.

[0014] Preferably, the reflective layer has funnel-shaped water guide holes; the waterproof layer has cylindrical water guide holes, and the narrow outlet of the funnel-shaped water guide hole of the reflective layer is connected to the cylindrical water guide hole of the waterproof layer.

[0015] By adopting the above technical solution, the reflective layer of the weed control fabric is designed with funnel-shaped water guide holes, while the water guide holes of the waterproof layer are cylindrical, with the narrow outlet of the funnel-shaped water guide holes connected to the cylindrical water guide holes. This design allows water to more easily concentrate at the wide inlet of the funnel-shaped water guide holes and be quickly guided from the narrow outlet into the cylindrical water guide holes, thereby improving water flow guidance efficiency. Combining the original functions of the reflective and waterproof layers, not only is effective light transmission and reflection ensured, but the overall permeability of the weed control fabric is also significantly improved.

[0016] Preferably, the water guide holes in the reinforcing layer are all funnel-shaped water guide holes, and the wide inlet of the funnel-shaped water guide holes in the reinforcing layer is close to the water-absorbing structural layer.

[0017] By adopting the above technical solution, the reinforcing layer of the weed control fabric is equipped with funnel-shaped water-guiding holes, with the wide inlet facing the absorbent structural layer. This effectively guides moisture out of the absorbent structural layer, improving the overall permeability of the fabric. Simultaneously, this design reduces reverse loss during moisture evaporation, enhancing the moisture retention effect. Specifically, the funnel-shaped water-guiding hole structure concentrates the water flow towards the narrow outlet, thereby accelerating the drainage process, while the wide inlet design helps to expand the collection range, further optimizing permeability efficiency.

[0018] Preferably, the absorbent structural layer is provided with an absorbent membrane layer, a mesh layer, and a non-woven fabric layer in sequence, wherein the absorbent membrane layer is connected to the waterproof layer, and the non-woven fabric layer is connected to the reinforcing layer.

[0019] By adopting the above technical solution, the water-absorbing structural layer is composed of an absorbent membrane layer, a mesh layer, and a non-woven fabric layer in sequence. The absorbent membrane layer is connected to the waterproof layer, and the non-woven fabric layer is connected to the reinforcing layer. This design enables the absorbent membrane layer to efficiently absorb moisture, while the mesh layer and non-woven fabric layer form an effective water storage and conduction space, thereby significantly improving the overall water permeability and storage capacity of the weed control fabric.

[0020] Specifically, the absorbent membrane layer provides strong water absorption, the mesh layer enhances structural stability and assists in water conduction, and the non-woven fabric layer further optimizes water storage and transmission. The synergistic effect of these three elements significantly improves the problem of plant water shortage caused by the poor water permeability of traditional weed control fabrics.

[0021] Preferably, the absorbent membrane layer is a PLA membrane layer, the web layer is a PLA web layer, and the nonwoven fabric layer is a nonwoven fabric layer made of viscose fiber and spandex fiber.

[0022] By adopting the above technical solution, a PLA membrane layer is selected for the absorbent membrane layer, giving it excellent water absorption performance and thus enhancing the overall water absorption capacity of the weed control fabric. The PLA mesh layer further improves water absorption efficiency and works synergistically with the absorbent membrane layer to optimize water flow guidance. The non-woven fabric layer is made of viscose and spandex fibers, which, while ensuring good water absorption, increase structural elasticity and stability. Together, these three elements form a highly efficient absorbent structural layer, significantly improving the water permeability and water storage capacity of the weed control fabric.

[0023] Preferably, the thickness of the absorbent membrane layer is 0.01-0.2 mm.

[0024] By adopting the above technical solution, the thickness of the absorbent membrane layer is set to 0.01-0.2mm, which can reduce material usage and optimize the lightweight design of the overall structure while ensuring sufficient water absorption performance, thereby improving the overall permeability and economy of the weed control fabric. Absorbent membrane layers within this thickness range are more likely to achieve efficient water absorption and storage functions, further enhancing the moisture conduction capacity of the weed control fabric.

[0025] Preferably, the thickness of the reflective layer is 0.1-0.5 mm, the thickness of the waterproof layer is 0.05-0.1 mm, and the thickness of the reinforcing layer is 0.1-0.5 mm.

[0026] By adopting the above technical solutions, the thickness of each functional layer of the weed control fabric is precisely controlled. The reflective layer thickness is set at 0.1-0.5mm, ensuring excellent light transmittance and mechanical strength while reducing material usage and optimizing costs; the waterproof layer thickness is limited to 0.05-0.1mm, allowing for reduced thickness while achieving efficient light reflection, thus improving flexibility and reducing weight; the reinforcing layer thickness is set at 0.1-0.5mm, ensuring sufficient tensile strength and durability of the overall structure without excessively increasing the product thickness. This thickness design comprehensively enhances the functionality and practicality of the weed control fabric.

[0027] Preferably, the area of ​​the water-guiding holes on the surface of the reflective layer accounts for 5-20% of the total area.

[0028] By adopting the above technical solution, the area of ​​water-guiding holes on the surface of the reflective layer accounts for 5-20% of the total area, which can effectively balance the mechanical strength and water-guiding performance of the reflective layer. While ensuring that the reflective layer is sufficiently robust, it also ensures that there is enough surface area to guide water flow, thereby improving the overall permeability of the weed control fabric.

[0029] In summary, this application includes at least one of the following beneficial technical effects:

[0030] 1. By setting interconnected water-guiding holes in the reflective layer, waterproof layer and reinforcing layer, effective water conduction and penetration are achieved, which solves the problem of surface water accumulation or plant root water shortage caused by the lack of drainage and air-permeable mechanism in existing weed control fabrics. At the same time, it can also play a role in water and fertilizer retention, and improve the weed control fabric.

[0031] 2. The funnel-shaped water guide hole design helps to concentrate and guide the water flow, improve the water introduction efficiency, and further enhance the permeability of the weed control fabric;

[0032] 3. The funnel-shaped water-guiding holes in the reinforcing layer can not only efficiently drain excess water from the water-absorbing structure layer, but also reduce water loss during evaporation, thus providing excellent moisturizing function. Attached Figure Description

[0033] Figure 1 This is a schematic diagram of the layered structure of a weed control fabric that retains moisture and fertilizer.

[0034] Explanation of reference numerals in the attached diagram: 1. Reflective layer; 2. Waterproof layer; 3. Water-absorbing structural layer; 31. Water-absorbing membrane layer; 32. Mesh layer; 33. Non-woven fabric layer; 4. Reinforcing layer; 5. Water-guiding holes. Detailed Implementation

[0035] The following is in conjunction with the appendix Figure 1 This application will be described in further detail.

[0036] The high-permeability weed control fabric provided in this application embodiment is referenced. Figure 1 The system includes a main body, which comprises a reflective layer 1, a waterproof layer 2, a water-absorbing structural layer 3, and a reinforcing layer 4, arranged sequentially from the outer surface to the inner surface. Further, each of the reflective layer 1, waterproof layer 2, and reinforcing layer 4 has at least one water-guiding hole 5. Specifically, the number of water-guiding holes 5 per square meter of weed control fabric can be 1, 10, 50, 100, etc. When there are several water-guiding holes 5, their arrangement can be irregular or matrix-arranged. This embodiment preferably uses a matrix arrangement, with 100 water-guiding holes 5 per square meter, and the number of water-guiding holes 5 in the reflective layer 1, waterproof layer 2, and reinforcing layer 4 is equal. Furthermore, the water-guiding holes 5 of the reflective layer 1 and the waterproof layer 2 are interconnected, thereby achieving efficient water drainage.

[0037] Specifically, the reflective layer 1 is formed by vacuum aluminum deposition or other metal deposition techniques. The thickness of the reflective layer 1 can be 0.1mm, 0.2mm, 0.3mm, 0.4mm, or 0.5mm, with 0.1mm being preferred in this embodiment. Water-guiding holes 5 are formed on the surface of the reflective layer 1, with an area ratio of 5%, 10%, 15%, or 20%, with 20% being preferred in this embodiment. The reinforcing layer 4 is formed by lamination of materials such as PE or PET. The thickness of the reinforcing layer 4 can be 0.1mm, 0.2mm, 0.3mm, 0.4mm, or 0.5mm, with 0.1mm being preferred in this embodiment. The waterproof layer 2 is made of black polyethylene or polypropylene material, with a thickness of 0.05mm, 0.07mm, 0.08mm, or 0.1mm, with 0.05mm being preferred in this embodiment.

[0038] Furthermore, the water guide holes 5 of the reflective layer 1 and the reinforcing layer 4 are both funnel-shaped water guide holes 5, while the water guide holes 5 of the reflective layer are cylindrical water guide holes 5. The funnel-shaped water guide holes 5 have a wide inlet and a narrow outlet, which can better collect water flow and accurately guide it to the next layer through the narrow outlet; its cylindrical water guide holes 5 are connected to the narrow outlet of the funnel-shaped water guide holes 5 of the upper reflective layer 1 to ensure that the liquid flows smoothly into the water-absorbing structure layer 3.

[0039] The absorbent structural layer 3, from the side closest to the reflective layer to the side closest to the reinforcing layer 4, consists of an absorbent membrane layer 31, a mesh layer 32, and a non-woven fabric layer 33 arranged sequentially. The absorbent membrane layer 31 is tightly attached to the waterproof layer 2 and can be made of PLA, with a thickness of 0.01mm, 0.05mm, 0.1mm, or 0.2mm. In this embodiment, 0.05mm is preferred, and the total thickness of the absorbent structural layer 3 is 0.2mm. The mesh layer 32 is located in the middle and can be made of PLA. The bottom layer is a non-woven fabric layer 33 made of a mixture of viscose and spandex fibers, which serves as a water storage and support. All three materials have good water absorption and storage capacity, which helps to improve overall permeability and water and fertilizer retention.

[0040] The implementation principle of this embodiment is as follows: First, the reflective layer 1, waterproof layer 2, and reinforcing layer 4 are molded to form corresponding water-guiding holes 5. Then, the reflective layer 1, waterproof layer 2, absorbent membrane layer 31, mesh layer 32, non-woven fabric layer 33, and reinforcing layer 4 are placed and heat-pressed in sequence to form a highly permeable weed control fabric. This optimizes the coordination between the functional layers. When in contact with water, the water-guiding holes 5 of different shapes are used to achieve the goal of gradually guiding water. At the same time, with the strong absorption and temporary storage capacity of the absorbent structure layer 3, the effective drainage process from the top layer to the bottom layer is finally completed. This greatly improves the traditional defects of weed control fabric, solves the problem that water cannot penetrate smoothly, improves the soil moisture retention level in agricultural planting, and plays a role in moisturizing, fertilizing, and weeding, promoting the healthy growth of crops.

[0041] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A moisture-retaining and fertilizer-retaining weed-control fabric, comprising a fabric body, characterized in that: The fabric is provided with a reflective layer (1), a waterproof layer (2), a water-absorbing structural layer (3) and a reinforcing layer (4) in sequence from the outer surface to the inner surface. The reflective layer (1), the waterproof layer (2) and the reinforcing layer (4) are each provided with at least one water-guiding hole (5). The water-guiding hole (5) of the reflective layer (1) is connected to the water-guiding hole (5) of the waterproof layer (2). The water guide holes (5) of the reinforcing layer (4) are all funnel-shaped water guide holes (5), and the wide entrance of the funnel-shaped water guide holes (5) of the reinforcing layer (4) is close to the water absorption structure layer (3); The absorbent structural layer (3) is provided with an absorbent membrane layer (31), a mesh layer (32), and a non-woven fabric layer (33) in sequence. The absorbent membrane layer (31) is connected to the waterproof layer (2), and the non-woven fabric layer (33) is connected to the reinforcing layer (4).

2. The moisture-retaining and fertilizer-retaining weed-control fabric according to claim 1, characterized in that: The reflective layer (1) has funnel-shaped water guide holes (5).

3. The moisture-retaining and fertilizer-retaining weed-control fabric according to claim 2, characterized in that: The water guide hole (5) of the waterproof layer (2) is a cylindrical water guide hole (5), and the narrow outlet of the funnel-shaped water guide hole (5) of the reflective layer (1) is connected to the cylindrical water guide hole (5) of the waterproof layer (2).

4. The moisture-retaining and fertilizer-retaining weed-control fabric according to claim 1, characterized in that: The absorbent membrane layer (31) is a PLA membrane layer.

5. The moisture-retaining and fertilizer-retaining weed-control fabric according to claim 1, characterized in that: The net layer (32) is a PLA net layer (32).

6. The moisture-retaining and fertilizer-retaining weed-control fabric according to claim 1, characterized in that: The nonwoven layer (33) is a nonwoven layer (33) made of viscose fiber and spandex fiber.

7. The moisture-retaining and fertilizer-retaining weed-control fabric according to claim 1, characterized in that: The thickness of the absorbent membrane layer (31) is 0.01-0.2 mm.

8. The moisture-retaining and fertilizer-retaining weed-control fabric according to claim 1, characterized in that: The thickness of the reflective layer (1) is 0.1-0.5 mm, the thickness of the waterproof layer (2) is 0.05-0.1 mm, and the thickness of the reinforcing layer (4) is 0.1-0.5 mm.

9. The moisture-retaining and fertilizer-retaining weed-control fabric according to claim 1, characterized in that: The area of ​​the water-guiding holes (5) on the surface of the reflective layer (1) accounts for 5-20% of the total area.

Images