Agricultural transparent paper film

Abstract

The utility model provides an agricultural transparent paper film. The agricultural transparent paper film comprises a paper film body, an upper coating is arranged on the upper surface of the paper film body, and a lower coating is arranged on the lower surface of the paper film body. The upper coating is provided with a waterproof coating; and the lower coating is a fertilizer coating. The paper film body is made of carbohydrate raw materials and is easy to degrade and more environmentally friendly, meanwhile, the fertilizer coating is arranged on the lower coating, crops absorb fertilizer in the fertilizer coating, and fertilizer use of the crops can be reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of agricultural transparent paper films, in particular to an agricultural transparent paper film. Background Art

[0002] Agricultural film is a general term for films used in agricultural production. It is mainly used to cover farmland to increase ground temperature, maintain soil moisture, and promote seed germination and seedling growth. Agricultural films are mainly divided into two types: greenhouse films and ground films. There are also other types of agricultural covering materials such as shade nets, insect-proof nets and forage films. Agricultural films are usually divided into ground films and greenhouse films. However, the main component of ground films is polyethylene, which is a high-molecular compound that is difficult to degrade under natural conditions. If not handled properly, the ground film left in the soil may damage the soil structure and reduce the soil's hygroscopicity.

[0003] In order to meet the needs of agricultural production, transparent paper films came into being. First, rice seeds are accurately placed in the paper films, and these "papers" are spread in the fields. In this way, farmers do not need to carry out tedious operations such as raising seedlings, transplanting, and sowing seeds. They can easily grow high-yield rice by relying on fully automated and mechanized operations. In addition, paper films can also prevent grass growth, greatly reducing the use of herbicides, and embodying the development concept of green agriculture.

[0004] Currently, the greenhouse films on the market are usually made of polyethylene, which is difficult to degrade and recycle. They also have single functions and are not environmentally friendly.

[0005] The application of transparent paper film in agriculture is also two-sided. On the one hand, it can effectively improve the yield and quality of crops and reduce the labor intensity of farmers; on the other hand, if it is used improperly or poorly supervised, it will have a negative impact on the soil and the environment. Therefore, how to ensure agricultural production efficiency while taking into account environmental protection and sustainable development is an important issue facing the current development of agricultural science and technology.

[0006] Therefore, it is necessary to provide a new agricultural transparent paper film to solve the above-mentioned technical problems. Utility Model Content

[0007] The utility model aims to provide an agricultural transparent paper film to solve the problem that the prior art is not environmentally friendly and easily causes soil pollution.

[0008] In order to solve the above technical problems, the utility model provides an agricultural transparent paper film, including a paper film body made of sugar raw materials as raw materials, the upper surface of the paper film body is provided with an upper coating, the lower surface is provided with a lower coating, the upper coating is provided with a waterproof coating, and the lower coating is a fertilizer coating.

[0009] Furthermore, the fertilizer is provided with multiple layers for gradual release according to the growth requirements of crops.

[0010] Furthermore, the upper coating layer is subjected to light-shielding treatment by dyeing.

[0011] Furthermore, the carbohydrate raw material of the raw material is a polysaccharide raw material.

[0012] Furthermore, the carbohydrate raw material of the raw material is cellulose or glycolic acid.

[0013] Furthermore, the utility model also provides a device for making the above-mentioned agricultural transparent paper film, including a substrate unwinding component, a coating component is arranged on the right side of the substrate unwinding component, the carrier film needs to be corona treated before entering the coating component from the substrate unwinding component, a slurry tank for placing slurry is arranged in the coating component, a winding component is arranged on the left side of the substrate unwinding component, a composite traction component is arranged on the left side of the winding component, a composite unwinding component for adding release material during secondary processing of film formation is arranged on the left side of the composite traction component, the substrate unwinding component, the winding component and the upper side of the composite traction component are all arranged in an outer frame, a heating device is arranged above the top of the outer frame, and the substrate unwinding component, the coating component, the heating device, the composite traction component and the winding component are all connected in sequence through the carrier film.

[0014] Furthermore, a multi-stage temperature control system is provided in the heating device.

[0015] Furthermore, the winding assembly is also connected to a hot air ring blowing device.

[0016] Furthermore, the carrier film needs to be subjected to corona treatment before entering the coating assembly from the substrate unwinding assembly.

[0017] Furthermore, the slurry contains alcohol materials.

[0018] Compared with the related art, the agricultural transparent paper film and paper film laying device provided by the utility model have the following beneficial effects:

[0019] Cellulose or glycolic acid is used as the raw material, so that the transparent paper film after film formation has the characteristic of being soluble in water. The lower coating of the paper film body is set as a fertilizer coating, which can be changed according to the growth requirements of different crops. Multi-layer fertilizer coatings are set for long-term slow release to improve agricultural production efficiency. At the same time, the waterproof coating is set to prevent the paper film itself from dissolving in water, so that it is degraded into carbon dioxide and water by microorganisms after dissolution, or it is recycled and processed for recycling. The waterproof coating can reduce its durability after a certain period of time through the process setting, so that the transparent paper film of the present application dissolves in water for environmental protection. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to facilitate understanding by those skilled in the art, the present invention is further described below in conjunction with the accompanying drawings.

[0021] Figure 1 This is a schematic diagram of the structure of the agricultural paper film making device of the utility model;

[0022] Figure 2 It is a cross-sectional view of the paper film main body of the utility model.

[0023] In the figure: 1. substrate unwinding assembly; 11. corona treatment; 2. coating assembly; 21. slurry tank; 3. carrier film; 4. outer frame; 5. heating device; 6. composite traction assembly; 7. composite unwinding assembly; 8. winding assembly. DETAILED DESCRIPTION

[0024] See also Figure 1 The utility model provides an agricultural transparent paper film production device, including a substrate unwinding component 1, a coating component 2 is arranged on the right side of the substrate unwinding component 1, the carrier film 3 needs to be subjected to corona treatment 11 before entering the coating component 2 from the substrate unwinding component 1, a slurry tank 21 for placing slurry is arranged in the coating component 2, a winding component 8 is arranged on the left side of the substrate unwinding component 1, a composite traction component 6 is arranged on the left side of the winding component 8, and a composite unwinding component 7 for adding release material during secondary film processing is arranged on the left side of the composite traction component 6, the substrate unwinding component 1, the winding component 8 and the composite traction component 6 are all arranged in an outer frame 4 on the upper side, a heating device 5 is arranged above the top of the outer frame 4, and the substrate unwinding component 1, the coating component 2, the heating device 5, the composite traction component 6 and the winding component 8 are all connected in sequence through the carrier film 3.

[0025] Preferably, in the present application, the coating component 2 is a comma blade coating component.

[0026] The carrier film 3 is conveyed into the comma blade coating assembly 2 through the substrate unwinding assembly 1. At this time, the slurry is placed in the slurry tank 21, and the coating operation is performed through the comma blade coating assembly 2. At the same time, the thickness of the slurry on the carrier film 3 is controlled by the comma blade. After the coating is completed by the blade, the slurry is conveyed to the heating device 5 through the carrier film 3, and after high-temperature baking, the film is formed. Then, the carrier film 3 is pulled to the winding assembly 8 by the composite pulling assembly 6. Before the carrier film 3 enters the comma blade coating assembly 2 from the substrate unwinding assembly 1, a corona treatment 11 is performed. The carrier film 3 is treated by the corona treatment when it enters the blade coating assembly before the substrate unwinding assembly 1. The surface properties of the transparent film are changed by the corona treatment 11, so that the surface has higher adhesion. The heating device controls the hardness of the film by affecting the moisture content of the film through internal baking.

[0027] Furthermore, a multi-stage temperature control system is provided in the heating device 5. The multi-stage temperature control system can effectively control the film forming rate during baking.

[0028] Furthermore, the manufacturing device also adopts a hot air ring blowing device. By adopting the hot air ring blowing device, the speed of the paper film when rolling can be effectively controlled to achieve a better rolling effect.

[0029] Furthermore, the slurry in the device is supported by cellulose or glycolic acid, and polyvinyl alcohol is added therein.

[0030] See also Figure 2 The utility model also provides an agricultural transparent paper film, including a paper film body made of a sugar raw material as a raw material, an upper coating layer is arranged on the upper surface of the paper film body, and a lower coating layer is arranged on the lower surface, the upper coating layer is arranged with a waterproof coating layer, and the lower coating layer is a fertilizer coating layer. The transparent paper film produced by the transparent paper film production device can be processed to produce the agricultural transparent paper film described in this application. Since the upper coating layer is provided with a waterproof coating layer, the transparent paper film is provided with a waterproof function, so the transparent paper film of the present application can have a certain waterproof effect. At the same time, a fertilizer coating layer is arranged in the lower coating layer. By adding a fertilizer coating composed of elements such as nitrogen, phosphorus and potassium to the lower coating layer, the demand for fertilization of crops can be effectively reduced, and even no fertilization is required, thereby improving agricultural production efficiency. At the same time, since the paper film is made of a sugar raw material, it has good biodegradability and environmental protection. Therefore, it can be decomposed by microorganisms after use, thereby reducing the impact on the environment. Therefore, when the paper film is not needed, it can also be degraded by the soil burial method to prevent land pollution. After the degradation is completed, it can also be used as a fertilizer to compost the land to increase the soil fertility in the land.

[0031] Furthermore, the fertilizer is provided with multiple layers for gradual release according to the growth requirements of crops. By providing different numbers of fertilizer layers according to the growth requirements of different types of crops, the elements in the fertilizer coating are gradually released over time, achieving a long-term slow release effect.

[0032] Furthermore, the upper coating layer is subjected to light-shielding treatment by dyeing. By dyeing the agricultural paper film in the present application for light-shielding treatment, and then opening a gap at the place where crops grow so that the crops can be nourished by sunlight, the rest of the land except for the crops cannot be exposed to sunlight due to the light-shielding treatment, so the growth of weeds can be effectively prevented, so that the device does not need to spray pesticides, reducing planting costs and drug pollution. Therefore, through printing and dyeing treatment, the present application can be well applied in the field of ground film and greenhouse film.

[0033] Furthermore, the carbohydrate raw material of the raw material is cellulose. Cellulose is a natural organic compound and a main component of plant cell walls. It has excellent biodegradability and environmental protection. Using cellulose as the raw material of the transparent paper film in this application can be decomposed by microorganisms after use, reducing the impact on the environment. In addition, since cellulose also has good weather resistance and aging resistance, the service life of the agricultural film can be increased.

[0034] Furthermore, the sugar raw material of the raw material is glycosides. Glycosides are a material that can be completely degraded by microorganisms. They can be decomposed by microorganisms in the natural environment, thereby reducing the impact on the environment. Using glycosides as the raw material of the transparent paper film of the present application can also play an equivalent role as a plasticizer, making the agricultural film more flexible, thereby increasing its service life.

[0035] Although the embodiments of the present invention have been shown and described, it is understood by those skilled in the art that various changes, modifications, substitutions and variations or direct or indirect applications may be made to these embodiments without departing from the principles and spirit of the present invention. In other related technical fields, the scope of the present invention is defined by the attached claims and their equivalents, which are equally included in the scope of patent protection of the present invention.

Claims

1. An agricultural transparent paper film, characterized in that: The invention comprises a paper film body made of sugar raw materials, wherein the upper surface of the paper film body is provided with an upper coating layer, the lower surface is provided with a lower coating layer, the upper coating layer is provided with a waterproof coating layer, and the lower coating layer is a fertilizer coating layer.

2. The agricultural transparent paper film according to claim 1, characterized in that: The fertilizer is provided with multiple layers for gradual release according to the growth requirements of crops.

3. The agricultural transparent paper film according to claim 1, characterized in that: The top coating layer is subjected to light-shielding treatment by dyeing.

4. The agricultural transparent paper film according to claim 1, characterized in that: The carbohydrate raw material of the raw materials is a polysaccharide raw material.

5. The agricultural transparent paper film according to claim 4, characterized in that: The polysaccharide raw material is cellulose or glycolic acid.

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