Paper mulching film with thermal insulation performance

Through the combination of transparent PE film and black paper edge film, the problems of slow temperature increase and poor light transmission of the whole paper texture film are solved, early temperature increase and weed suppression are achieved, crop yield and quality are improved, and service life is extended.

CN223125469UActive Publication Date: 2025-07-22NORTHEAST AGRICULTURAL UNIVERSITY
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Patent Information

Application Number
CN202422439766.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-10-09
Publication Date
2025-07-22
Estimated Expiration
2034-10-09

AI Technical Summary

Technical Problem

The existing paper-based plastic film has slow temperature increase and poor light transmission, which cannot effectively promote plant photosynthesis and cannot effectively inhibit weed growth.

Method used

A combination of transparent PE film and black paper edge film is used, which is used for insulation and photosynthesis, edge film is used to block weed photosynthesis, folded film can adjust its width and tear holes to suit different cultivation grooves, and the outer layer is coated with a paraffin layer to enhance insulation performance.

Benefits of technology

It achieves good early warming effect, promotes photosynthesis, and at the same time inhibits weed growth, improves crop yield and quality, maintains soil moisture, and extends service life.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a paper mulching film with heat preservation performance, and belongs to the technical field of paper mulching films. Comprising a transparent film, paper edge films are bonded to the two sides of the transparent film, folding films are bonded to the upper surfaces of the edge films on the two sides, and the transparent film can be shielded by the two folding films. Meanwhile, the transparent film does not have great influence on photosynthesis of plants, the edge film covers the row space between the cultivation row ditches, photosynthesis of weeds between the row space of the ridge surface and on the ridge side can be blocked and growth of the weeds can be inhibited through the lightproof performance of the edge film, and the edge film can be folded according to the width of the cultivation row ditches, so that the cultivation row ditches can be cultivated. Therefore, the folded folding film can adapt to cultivation furrows with different widths.
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Description

Technical Field

[0001] This application relates to the technical field of paper mulch films, and more specifically, to paper mulch films with heat preservation performance. Background Art

[0002] Paper mulch film is an environmentally friendly material widely used in agricultural production. Its main feature is that it is made of natural materials such as plant fibers, so it has the ability to naturally degrade in the soil and will not pollute the environment.

[0003] When using a fully paper mulch film, there are problems such as slow temperature increase, poor light transmittance, which is not conducive to the emergence of plants. After emergence, the plants cannot obtain photosynthesis and turn yellow and die, unable to guarantee the light transmittance of the plants.

[0004] In view of this, we propose a paper mulch film with heat preservation performance. Utility Model Content

[0005] 1. Technical Problems to be Solved

[0006] The purpose of this application is to provide a paper mulch film with heat preservation performance, which solves the technical problems in the above background art, realizes good heat increase effect in the transparent film part, enhances photosynthesis in the early growth stage of crops, can promote their early and rapid growth, and through the folding film, the cultivation row ditches of different widths can be adjusted. The poor light transmittance of the side film can block the photosynthesis of weeds between the ridges and on the side of the ridges, and inhibit the growth of weeds.

[0007] 2. Technical Solutions

[0008] The technical solution of this application provides a paper mulch film with heat preservation performance, including: a transparent film, with paper side films adhered to both sides of the transparent film, and folding films adhered to the upper surfaces of both side films, and the two folding films can cover the transparent film.

[0009] By adopting the above technical solution, the transparent film covers the cultivation row ditches, playing a good role in heat preservation for the plants planted in the cultivation row ditches. At the same time, the transparent film will not have a great impact on the photosynthesis of the plants. The side film is covered in the inter-row area between the cultivation row ditches. Through the light-impermeability of the side film, the photosynthesis of weeds between the ridges and on the side of the ridges can be blocked, inhibiting the growth of weeds, and according to the width of the cultivation row ditches, by folding the folding film, the folded folding film can adapt to cultivation row ditches of different widths.

[0010] As an alternative solution of the technical solution of this application document, a plurality of tearing holes are opened on the opposite sides of the folding film, and the plurality of tearing holes form an arc structure. Each arc structure is a group, and multiple groups are arranged on the edge side of the folding film.

[0011] By adopting the above technical solution, when the folding films on both sides cover the transparent film and a part of the side film is torn off along each set of tearing holes, a cultivation opening is formed between the arc-shaped openings of the folding films on both sides. An opening is made at the position of the transparent film corresponding to the cultivation opening. At this time, planting can be carried out at equal intervals. At the same time, the folding film can shade the root range of plants in a relatively large area to achieve the purpose of inhibiting weed growth in the largest range.

[0012] As an alternative solution of the technical solution of this application document, the side film and the folding film are black paper mulch films, and the transparent film is a transparent PE film.

[0013] By adopting the above technical solution, due to the extremely low light transmittance of the black mulch film, it can effectively inhibit the growth of weeds. When weeds cannot obtain sufficient light, it is difficult for them to carry out photosynthesis, so they cannot germinate and grow. This is of great significance for reducing the competition between crops and weeds and improving crop yield and quality. The black mulch film material itself has good heat preservation and moisture retention properties. After being laid, it can reduce the evaporation of soil moisture, keep the soil humidity, and provide a stable moisture environment for crop growth. At the same time, the black mulch film can also increase the soil temperature to a certain extent, promote the development of plant roots and the growth rate. The transparent PE film can transmit sufficient light and provide a good light environment. The transparent PE film has good corrosion resistance and is not easily eroded by chemical substances such as acids, alkalis, and salts. This characteristic enables it to maintain stability in some special environments and extend its service life.

[0014] As an alternative solution of the technical solution of this application document, a paraffin layer is coated on the outer surface of the folding film.

[0015] By adopting the above technical solution, the heat preservation performance of the mulch film can be further improved through the paraffin layer.

[0016] 3. Beneficial effects

[0017] One or more technical solutions provided in the embodiments of this application have at least the following technical effects or advantages:

[0018] 1. In this application, the transparent film covers the cultivation row ditch, which plays a good role in heat preservation for the plants planted on the cultivation row ditch. At the same time, the transparent film will not have a great impact on the photosynthesis of plants. The side film is covered in the inter-row area between the cultivation row ditches. Through the light impermeability of the side film, the photosynthesis of weeds in the ridge surface inter-row and ridge side can be blocked, inhibiting the growth of weeds. And according to the width of the cultivation row ditch, by folding the folding film, the folded folding film can adapt to cultivation row ditches of different widths;

[0019] 2. In this application, the transparent film is covered by folding films on both sides, and a part of the side film is torn off along each set of tearing holes. A cultivation opening is formed between the arc-shaped openings of the folding films on both sides. An opening is made at the position of the transparent film corresponding to the cultivation opening. At this time, planting can be carried out at equal intervals. At the same time, the folding films can shade the root range of plants over a large area to achieve the purpose of suppressing weed growth within the largest possible range. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 FIG. is a schematic structural diagram of the folded state of the overall folding film of the paper-based ground film with heat preservation performance disclosed in a preferred embodiment of this application;

[0021] Figure 2 FIG. is a schematic structural diagram of the cultivation state of the cultivation opening after the folding film of the paper-based ground film with heat preservation performance disclosed in a preferred embodiment of this application covers the transparent film;

[0022] Figure 3 The paper-based ground film with heat preservation performance disclosed in a preferred embodiment of this application Figure 2 is an enlarged structural diagram of part A in;

[0023] Explanation of reference numerals in the figure: 1, transparent film; 2, side film; 3, folding film; 31, tearing hole; 32, cultivation opening. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0024] The following further describes this application in detail with reference to the accompanying drawings of the specification.

[0025] The paper-based ground film with heat preservation performance includes: a transparent film 1, and paper-based side films 2 are adhered to both sides of the transparent film 1. Folding films 3 are adhered to the upper surfaces of the two side films 2, and the two folding films 3 can cover the transparent film 1.

[0026] Referring to Figures 1-3 , the folding film 3 is made of the same material as the side film 2. The transparent film 1 covers the cultivation furrow, which plays a good role in heat preservation for the plants planted in the cultivation furrow. At the same time, the transparent film 1 will not have a great impact on the photosynthesis of the plants. The side film 2 is covered in the row space between the cultivation furrows. Through the light-tightness of the side film 2, the photosynthesis of the weeds in the row space on the ridge surface and on the ridge side can be blocked, and the growth of the weeds can be inhibited. And according to the width of the cultivation furrow, by folding the folding film 3, the folded folding film 3 can be adapted to cultivation furrows of different widths.

[0027] A plurality of tearing holes 31 are formed on the opposite sides of the folding film 3. The plurality of tearing holes 31 form an arc-shaped structure. Each arc-shaped structure is a group, and multiple groups are arranged on the edge side of the folding film 3.

[0028] Referring to Figure 1 and Figure 2, when the folding films 3 on both sides cover the transparent film 1 and a part of the side film 2 is torn off along each set of tearing holes 31, a cultivation opening 32 is formed between the arc-shaped openings of the folding films 3 on both sides. An opening is made in the transparent film 1 corresponding to the cultivation opening 32. At this time, planting can be carried out at equal intervals. At the same time, the folding film 3 can shade a relatively large range of the root systems of plants, so as to achieve the purpose of inhibiting weed growth in the largest range.

[0029] The side film 2 and the folding film 3 are black paper mulch films, and the transparent film 1 is a transparent PE film.

[0030] Due to its extremely low light transmittance (usually only about 10%), the black mulch film can effectively inhibit the growth of weeds. When weeds cannot obtain sufficient light, it is difficult for them to carry out photosynthesis and thus cannot grow and germinate. This is of great significance for reducing the competition between crops and weeds and improving crop yield and quality. The black mulch film material itself has good heat preservation and moisture retention properties. After being laid, it can reduce the evaporation of soil moisture, keep the soil humidity, and provide a stable moisture environment for crop growth. At the same time, the black mulch film can also increase the soil temperature to a certain extent, promote the development of plant roots and growth rate. The transparent PE film can transmit sufficient light and provide a good light environment. The transparent PE film has good corrosion resistance and is not easily eroded by chemical substances such as acids, alkalis, and salts. This characteristic enables it to maintain stability and extend its service life in some special environments.

[0031] The outer surface of the folding film 3 is coated with a paraffin layer.

[0032] The heat preservation performance of the mulch film can be further improved through the paraffin layer.

[0033] Working principle: The transparent film 1 covers the cultivation row grooves, and the side film 2 covers the inter-row spaces between the cultivation row grooves. By folding the folding film 3, the folded folding film 3 can adapt to cultivation row grooves of different widths. Then, according to needs, the folding films 3 on both sides can also be covered on the transparent film 1, and a part of the side film 2 is torn off along each set of tearing holes 31. A cultivation opening 32 is formed between the arc-shaped openings of the folding films 3 on both sides. An opening is made in the transparent film 1 corresponding to the cultivation opening 32. At this time, planting can be carried out at equal intervals. At the same time, the folding film 3 can shade a relatively large range of the root systems of plants, so as to achieve the purpose of inhibiting weed growth in the largest range.

Claims

1. A paper mulching film with heat preservation performance, characterized in that: Including: A transparent film (1), with paper side films (2) adhered to both sides of the transparent film (1), and folding films (3) adhered to the upper surfaces of both side films (2), and the two folding films (3) can cover the transparent film (1).

2. The paper-based ground film with heat preservation performance according to claim 1, characterized in that: A plurality of tearing holes (31) are formed on the opposite sides of the folding film (3), and the plurality of tearing holes (31) form an arc structure, and each arc structure is a group, and multiple groups are arranged on the edge side of the folding film (3).

3. The paper mulch film with heat preservation performance according to claim 1, wherein: The side film (2) and the folding film (3) are black paper ground films, and the transparent film (1) is a transparent PE film.

4. The paper mulching film with heat preservation performance according to claim 1, characterized in that: A paraffin layer is coated on the outer surface of the folding film (3).