Photobio-degradable mulching film

By introducing a woven mesh layer and fixing mechanism into the photo-biodegradable mulch film, the durability and stability issues of the mulch film are solved, resulting in better coverage and anti-slip performance.

CN224356773UActive Publication Date: 2026-06-16SICHUAN PROVINCE NEW LONGYUAN PIPE

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SICHUAN PROVINCE NEW LONGYUAN PIPE
Filing Date
2025-06-10
Publication Date
2026-06-16

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Abstract

The utility model discloses a kind of photo-biological double-degradation mulching films, and it is related to mulching film technical field.It includes: double-degradation mulching film main body, woven mesh layer, fixedly arranged at the top of the outer wall of double-degradation mulching film main body, fixing mechanism, with two groups, each group fixing mechanism includes anti-tear strip and multiple fixed components, and the anti-tear strip is wrapped in the outer wall of double-degradation mulching film main body.The photo-biological double-degradation mulching film, the tensile strength and tear strength of double-degradation mulching film main body can be significantly increased by woven mesh layer, so that double-degradation mulching film main body is more durable, can withstand greater external force and pressure, improve the overall stability of double-degradation mulching film main body, also increase the friction of double-degradation mulching film main body surface, so that double-degradation mulching film main body surface has better antiskid performance when covering soil, and the mulching film can be firmly fixed on the ground by fixing mechanism, effectively prevent the mulching film from being blown up by wind, ensure the use effect of mulching film.
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Description

Technical Field

[0001] This utility model relates to the field of mulch film technology, specifically a photo-biological dual-degradable mulch film. Background Technology

[0002] Mulch film, also known as ground cover film, is used to cover the ground to increase soil temperature, retain soil moisture, maintain soil structure, prevent pests from attacking crops and diseases caused by certain microorganisms, and promote plant growth. With the rapid development of modern agriculture, mulch film covering technology has been widely used in agricultural production due to its advantages such as effectively increasing soil temperature, maintaining soil moisture, suppressing weed growth, and promoting early maturity and increased yield of crops.

[0003] Photo-biodegradable mulch film is a new type of environmentally friendly mulch film that can gradually degrade under the combined action of light and microorganisms. Existing photo-biodegradable mulch films have insufficient tensile and tear strength, making them prone to damage during use, which shortens their service life and coverage. In addition, the mulch film is easily blown away by the wind during the laying process, resulting in uneven coverage and affecting the performance of heat preservation and moisture retention functions. Utility Model Content

[0004] This invention provides a photo-biodegradable mulch film. By weaving a mesh layer, the tensile and tear strength of the mulch film body can be significantly increased, making the mulch film body more durable and able to withstand greater external forces and pressures, thus improving the overall stability of the mulch film body. At the same time, it also increases the friction of the surface of the mulch film body, giving it better anti-slip performance when covering the soil. The fixing mechanism allows the mulch film to be firmly fixed to the ground, effectively preventing the mulch film from being blown away by the wind and ensuring the effectiveness of the mulch film.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a photo-biodegradable mulch film, comprising:

[0006] Dual-degradable mulch film body;

[0007] A woven mesh layer is fixedly installed on the top outer wall of the main body of the dual-degradable mulch film;

[0008] The fixing mechanism is provided in two sets. Each set of the fixing mechanism includes a tear-resistant strip and multiple sets of fixing components. The tear-resistant strip is wrapped around the outer wall of the double-degradable mulch film body, and the fixing components of each set are equidistantly arranged on the tear-resistant strip.

[0009] Furthermore, the dual-degradable mulch film body includes a first degradable film layer, a second degradable film layer, a photosensitizing layer, and an insect repellent layer. The second degradable film layer is fixedly disposed at the bottom of the outer wall of the first degradable film layer, the photosensitizing layer is fixedly disposed at the bottom of the outer wall of the second degradable film layer, and the insect repellent layer is fixedly disposed at the bottom of the outer wall of the photosensitizing layer.

[0010] Furthermore, the woven mesh layer, the first degradable film layer, and the second degradable film layer are all made of polylactic acid.

[0011] Furthermore, the insect-repellent layer is an allicin coating.

[0012] Furthermore, the outer top wall of the first degradation film layer has a plurality of first holes, and the outer top wall of the second degradation film layer has a plurality of second holes.

[0013] Furthermore, each set of fixing components includes a connecting rope and a positioning rod. The connecting rope is fixedly disposed on one side of the outer wall of the tear-resistant strip, and the positioning rod is fixedly disposed on one end of the connecting rope.

[0014] This invention provides a photo-biodegradable mulch film. It has the following beneficial effects:

[0015] (1) The photo-biological dual-degradable mulch film can significantly increase the tensile strength and tear strength of the dual-degradable mulch film body by weaving a mesh layer, making the dual-degradable mulch film body more durable and able to withstand greater external forces and pressures, improving the overall stability of the dual-degradable mulch film body body, while also increasing the friction of the surface of the dual-degradable mulch film body body, so that the surface of the dual-degradable mulch film body body body has better anti-slip performance when covering the soil.

[0016] (2) The photo-biological dual-degradable mulch film can be firmly fixed to the ground through the fixing mechanism, which effectively prevents the mulch film from being blown away by the wind and ensures the use effect of the mulch film. Attached Figure Description

[0017] Figure 1 This is a perspective view of the present utility model;

[0018] Figure 2 This is an exploded view of the present invention;

[0019] Figure 3 This utility model Figure 1 Enlarged diagram of point A in the middle.

[0020] In the diagram: 1. Main body of double-degradable mulch film; 101. First degradable film layer; 102. Second degradable film layer; 103. Photosensitive layer; 104. Insect repellent layer; 2. Woven mesh layer; 3. Fixing mechanism; 301. Tear-resistant strip; 302. Connecting rope; 303. Positioning rod; 4. First hole; 5. Second hole. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0022] Please see Figure 1-3 This utility model provides a technical solution: a photo-biodegradable mulch film, comprising:

[0023] Dual-degradable mulch film body 1;

[0024] A woven mesh layer 2 is fixedly installed on the top of the outer wall of the dual-degradable mulch film body 1;

[0025] The fixing mechanism 3 is provided in two sets. Each set of fixing mechanism 3 includes a tear-resistant strip 301 and multiple sets of fixing components. The tear-resistant strip 301 is wrapped around the outer wall of the double-degradable mulch film body 1. Each set of fixing components is equidistantly arranged on the tear-resistant strip 301.

[0026] In this implementation scheme: the dual-degradable mulch film body 1 is used to achieve photodegradation and biodegradation functions. The woven mesh layer 2 can significantly increase the tensile strength and tear strength of the dual-degradable mulch film body 1, making it more durable and able to withstand greater external forces and pressures, improving the overall stability of the dual-degradable mulch film body 1. At the same time, it also increases the friction of the surface of the dual-degradable mulch film body 1, giving it better anti-slip performance when covering the soil. The fixing mechanism 3 is used to fix the mulch film and prevent it from being blown away by the wind. The tear-resistant strip 301 wraps around both sides of the dual-degradable mulch film body 1, which can enhance the tear resistance of the dual-degradable mulch film body 1. Through the fixing components, the mulch film can be firmly fixed to the ground, effectively preventing the mulch film from being blown away by the wind and ensuring the use effect of the mulch film.

[0027] Specifically, the dual-degradable mulch film body 1 includes a first degradable film layer 101, a second degradable film layer 102, a photosensitizing layer 103, and an insect repellent layer 104. The second degradable film layer 102 is fixedly disposed at the bottom of the outer wall of the first degradable film layer 101, the photosensitizing layer 103 is fixedly disposed at the bottom of the outer wall of the second degradable film layer 102, and the insect repellent layer 104 is fixedly disposed at the bottom of the outer wall of the photosensitizing layer 103.

[0028] In this embodiment: the photosensitizer 103 contains a photosensitizer, such as ferric stearate, which can promote the degradation of the film under light conditions; and the insect repellent layer 104 can effectively repel pests in the soil.

[0029] Specifically, the woven mesh layer 2, the first degradable film layer 101, and the second degradable film layer 102 are all made of polylactic acid.

[0030] In this embodiment, polylactic acid is produced by fermentation from renewable resources such as corn starch and sugarcane. It has good biocompatibility and biodegradability, and its degradation products are carbon dioxide and water, which are easy to process into woven mesh.

[0031] Specifically, the insect-repellent layer 104 is a garlic-based coating.

[0032] In this embodiment, the allicin-coated insect-repellent layer 104 can reduce the damage of pests to crops and is beneficial to the growth of crops.

[0033] Specifically, the outer top wall of the first degradation film layer 101 has multiple first holes 4, and the outer top wall of the second degradation film layer 102 has multiple second holes 5.

[0034] In this embodiment, the first hole 4 and the second hole 5 are staggered to allow rainwater to pass through the first degradation film layer 101 and the second degradation film layer 102 and enter the soil. The arrangement of the first hole 4 and the second hole 5 increases the contact area between the mulch film and the soil, which is conducive to the attachment and growth of microorganisms and further promotes the biodegradation of the mulch film.

[0035] Specifically, each set of fixing components includes a connecting rope 302 and a positioning rod 303. The connecting rope 302 is fixedly installed on one side of the outer wall of the tear-resistant strip 301, and the positioning rod 303 is fixedly installed on one end of the connecting rope 302.

[0036] In this embodiment: the positioning rod 303 is connected to the tear-resistant strip 301 by the connecting rope 302, and the positioning rod 303 is inserted into the soil so that the mulch film can be firmly fixed on the ground, effectively preventing the mulch film from being blown away by the wind and ensuring the effectiveness of the mulch film.

[0037] When using it, first lay the mulch film in the farmland, insert the positioning rod 303 into the soil, and fix the tear-resistant strip 301 to the ground through the connecting rope 302, so that the mulch film is firmly laid in the farmland. Under the combined action of light and microorganisms, the photosensitive layer 103, the first degradation film layer 101, and the second degradation film layer 102 work together to degrade the mulch film. At the same time, the allicin coating plays an insect-repelling role, reducing the damage of pests to crops.

[0038] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A photo-biodegradable mulch film, characterized in that, include: Dual-degradable mulch film body (1); A woven mesh layer (2) is fixedly installed on the top of the outer wall of the double-degradable mulch film body (1); The fixing mechanism (3) is provided in two sets. Each set of the fixing mechanism (3) includes a tear-resistant strip (301) and multiple sets of fixing components. The tear-resistant strip (301) is wrapped around the outer wall of the double-degradable mulch film body (1). Each set of fixing components is equidistantly arranged on the tear-resistant strip (301).

2. The photo-biodegradable mulch film according to claim 1, characterized in that: The dual-degradable mulch film body (1) includes a first degradable film layer (101), a second degradable film layer (102), a photosensitizing layer (103), and an insect repellent layer (104). The second degradable film layer (102) is fixedly disposed at the bottom of the outer wall of the first degradable film layer (101), the photosensitizing layer (103) is fixedly disposed at the bottom of the outer wall of the second degradable film layer (102), and the insect repellent layer (104) is fixedly disposed at the bottom of the outer wall of the photosensitizing layer (103).

3. The photo-biodegradable mulch film according to claim 2, characterized in that: The woven mesh layer (2), the first degradable film layer (101), and the second degradable film layer (102) are all made of polylactic acid.

4. The photo-biodegradable mulch film according to claim 3, characterized in that: The insect-repellent layer (104) is an allicin coating.

5. The photo-biodegradable mulch film according to claim 4, characterized in that: The top wall of the first degradation film layer (101) has a plurality of first holes (4), and the top wall of the second degradation film layer (102) has a plurality of second holes (5).

6. The photo-biodegradable mulch film according to claim 5, characterized in that: Each set of fixing components includes a connecting rope (302) and a positioning rod (303). The connecting rope (302) is fixedly installed on one side of the outer wall of the tear-resistant strip (301), and the positioning rod (303) is fixedly installed at one end of the connecting rope (302).