PE film with anti-extrusion layer structure

Abstract

The utility model relates to a PE (Poly Ethylene) film with an anti-extrusion layer structure, which belongs to the technical field of PE films and comprises a base layer PE film serving as a basic bearing layer, buffering and heat-insulating integrated layers are arranged on two sides of the base layer PE film and used for buffering and reducing heat transfer, wear-resistant layers are arranged outside the buffering and heat-insulating integrated layers, and the wear-resistant layers are arranged on the outer sides of the wear-resistant layers. Wear-resistant protrusions are arranged on the outer portion of the wear-resistant layer, the buffering and heat-insulating integrated layer comprises polyurethane foam, rubber columns and a pull-resistant connecting net, mounting holes are formed in the polyurethane foam, the rubber columns are fixedly connected into the mounting holes, the number of the mounting holes and the number of the rubber columns are both multiple, and the mounting holes and the rubber columns are evenly distributed in a rectangular shape; the anti-pulling connecting net is fixedly connected to the tops of the polyurethane foam and the rubber columns, the PE film with the anti-extrusion layer structure has the buffering and heat insulation effects, the effect of protecting articles is achieved, and meanwhile the abrasion-resistant layer reduces damage to the surface of the film.

Description

A PE film with an anti-crush layer structure Technical Field

[0001] This utility model relates to the field of PE film technology, and in particular to a PE film with an anti-squeezing layer structure. Background Technology

[0002] PE film is a thin film made from polyethylene resin as the main raw material, with the addition of appropriate additives, through processes such as blow molding or casting. Polyethylene is a high molecular polymer polymerized from ethylene monomers. Depending on the polymerization process and conditions, it can be divided into various types such as low-density polyethylene (LDPE), linear low-density polyethylene (LLDPE), and high-density polyethylene (HDPE). Different types of polyethylene have different performance characteristics, thus making PE film different in application. Appearance and characteristics: PE film is usually colorless and transparent or semi-transparent, and is soft, lightweight, non-toxic, and odorless. It has good tensile strength, toughness, and puncture resistance, and can resist external physical damage to a certain extent. At the same time, PE film also has excellent chemical corrosion resistance and good tolerance to many acids, alkalis, salts, and other chemicals. In addition, PE film has good moisture-proof and gas-barrier properties, which can effectively prevent the permeation of moisture and gas, thus protecting the packaged goods.

[0003] Currently, the PE films commonly found on the market have significant shortcomings in protective performance, especially in terms of cushioning. Ordinary PE films are relatively thin and can hardly provide any cushioning when external pressure is applied. This means that once the PE film is squeezed, the external pressure will be transmitted to the items inside without any hindrance, making the items very easy to be damaged by the pressure. It is impossible to achieve the ideal protective effect. Whether in daily packaging and transportation scenarios or in special fields with higher protection requirements, this PE film lacking cushioning function is unable to fulfill the important task of providing comprehensive protection for the contents. Summary of the Invention

[0004] To overcome the technical defects of the existing technology, this utility model provides a PE film with an anti-compression layer structure, which has the functions of buffering and heat insulation, thus protecting the items, while the wear-resistant layer reduces damage to the film surface.

[0005] The technical solution adopted by this utility model is as follows: it includes a base PE film as a basic bearing layer, and a buffer and heat insulation integrated layer is provided on both sides of the base PE film. The buffer and heat insulation integrated layer is used to buffer and reduce heat transfer. A wear-resistant layer is provided on the outside of the buffer and heat insulation integrated layer, and wear-resistant protrusions are provided on the outside of the wear-resistant layer.

[0006] Preferably, in order to connect the rubber column and the polyurethane foam together, the integrated buffer and heat insulation layer includes polyurethane foam, rubber column and tensile-resistant connecting mesh, the polyurethane foam is provided with mounting holes, and the rubber column is fixedly connected in the mounting holes.

[0007] Preferably, in order to ensure that the rubber columns are evenly distributed, there are multiple mounting holes and multiple rubber columns, and the mounting holes and rubber columns are evenly distributed in a rectangular shape. The tensile-resistant connecting mesh is fixedly connected to the top of the polyurethane foam and the rubber columns.

[0008] Preferably, in order to restore the polyurethane foam to its original position, the rubber column can be pulled back to its original position by the tensile-resistant connecting mesh when it deforms and rebounds.

[0009] Preferably, in order to integrate the base PE film, the integrated buffer and heat insulation layer, and the wear-resistant layer, the base PE film, the integrated buffer and heat insulation layer, and the wear-resistant layer are connected by a hot-pressing composite process.

[0010] Preferably, in order to increase the wear resistance effect, the wear-resistant protrusions are hemispherical and are evenly distributed in a rectangular shape on the wear-resistant layer.

[0011] The beneficial effects of this utility model are as follows: It features a wear-resistant layer with wear-resistant protrusions distributed on its surface. These protrusions work in conjunction with the wear-resistant layer to greatly enhance its wear resistance. When the PE film encounters friction during use, the wear-resistant protrusions effectively disperse the frictional force, preventing excessive local wear of the wear-resistant layer and further improving its durability. The rubber column has high elasticity and good resilience, allowing it to deform rapidly and absorb energy upon impact, then quickly return to its original shape. When compressed, the rubber column can cause the surrounding polyurethane foam to deform as well, thereby expanding the buffering range and effect. The polyurethane foam also has heat insulation properties, which can provide some protection in the packaging of temperature-sensitive items, preventing adverse effects of temperature changes on the items. Attached Figure Description

[0012] Figure 1 is a cross-sectional structural diagram of this utility model.

[0013] Figure 2 is a schematic diagram of the connection between the polyurethane foam and the rubber column in this utility model.

[0014] Figure 3 is a schematic diagram of the structure of the connecting mesh in this utility model.

[0015] Figure 4 is a schematic diagram of the connection between the wear-resistant layer and the wear-resistant protrusions in this utility model.

[0016] Figure 5 is a schematic diagram of the structure of the rubber column in this utility model.

[0017] Explanation of reference numerals in the attached diagram: 1. Base PE film; 2. Integrated buffer and heat insulation layer; 201. Polyurethane foam; 202. Rubber column; 203. Tensioner mesh; 3. Wear-resistant layer; 4. Wear-resistant protrusion. Detailed Implementation

[0018] The present invention will be further described below with reference to the accompanying drawings:

[0019] As shown in Figures 1-5, this embodiment provides a PE film with an anti-crush layer structure, including a base PE film 1 as the basic load-bearing layer. Both sides of the base PE film 1 are provided with an integrated buffer and heat insulation layer 2, which is used to buffer and reduce heat transfer. An abrasion-resistant layer 3 is provided on the outside of the integrated buffer and heat insulation layer 2, and abrasion-resistant protrusions 4 are provided on the outside of the abrasion-resistant layer 3. The base PE film 1, the integrated buffer and heat insulation layer 2, and the abrasion-resistant layer 3 are connected by a hot-pressing composite process. The abrasion-resistant protrusions 4 are hemispherical and evenly distributed in a rectangular shape on the abrasion-resistant layer 3. The base PE film 1, the integrated buffer and heat insulation layer 2, and the abrasion-resistant layer 3 are tightly connected together by the hot-pressing composite process to form a whole, ensuring the connection strength. The integrated buffer and heat insulation layer 2 is carefully provided on both sides of the base PE film 1. The main function of the integrated buffer and heat insulation layer 2 is to buffer external impact forces and reduce heat transfer. In terms of buffering, when the PE... When the membrane is squeezed or impacted, the integrated buffer and heat insulation layer 2 can quickly disperse and absorb energy, preventing the impact force from being directly transmitted to the internal items, thus effectively protecting the items from damage. In terms of heat insulation, it can block the entry of external heat and prevent the loss of internal heat, providing a suitable storage environment for temperature-sensitive items. The outer part of the integrated buffer and heat insulation layer 2 is the wear-resistant layer 3, which can resist friction, scratches and wear in daily use, extending the service life of the PE film. In order to further enhance the wear resistance of the wear-resistant layer 3, wear-resistant protrusions 4 are set on its outer part. These wear-resistant protrusions 4 are hemispherical and are evenly distributed in a rectangular shape on the wear-resistant layer 3. The hemispherical design allows the wear-resistant protrusions 4 to better disperse pressure and reduce local wear when in contact with external objects.

[0020] The integrated buffer and heat insulation layer 2 includes polyurethane foam 201, rubber columns 202, and tensile connecting mesh 203. The polyurethane foam 201 has mounting holes, and the rubber columns 202 are fixedly connected within these holes. Both the mounting holes and the rubber columns 202 are multiple and evenly distributed in a rectangular shape. The tensile connecting mesh 203 is fixedly connected to the top of the polyurethane foam 201 and the rubber columns 202. When the rubber columns 202 deform and rebound, they can pull the polyurethane foam 201 back to its original position through the tensile connecting mesh 203. When external impact force acts on the PE... When the membrane is in place, the rubber column 202 has a certain rigidity and can play a supporting role when embedded in the polyurethane foam 201, enhancing the overall structural strength of the buffer and heat insulation integrated layer 2. The rubber column 202 is embedded in the polyurethane foam 201, and the two are tightly combined to form a whole. When compressed, the rubber column 202 first bears most of the impact force, and the polyurethane foam 201 assists and works in coordination. When the rubber column 202 is deformed and rebounds after being impacted, it can pull the polyurethane foam 201 back to its original position through the tensile connecting mesh 203. In this process, the tensile connecting mesh 203 acts as a bridge and link, transferring the rebound force of the rubber column 202 to the polyurethane foam 201, so that the polyurethane foam 201 can quickly return to its original shape.

[0021] The foregoing has shown and described the basic principles and main features of this invention, as well as its advantages. Those skilled in the art should understand that this invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this invention. Various changes and modifications can be made to this invention without departing from its spirit and scope. All such changes and modifications fall within the scope of this invention as defined by the appended claims and their equivalents.

Claims

1. A PE film with an anti-crushing layer structure, comprising a base PE film (1) as a basic load-bearing layer, characterized in that: Both sides of the base PE film (1) are provided with a buffer and heat insulation integrated layer (2). The buffer and heat insulation integrated layer (2) is used to buffer and reduce heat transfer. The outer side of the buffer and heat insulation integrated layer (2) is provided with a wear-resistant layer (3). The outer side of the wear-resistant layer (3) is provided with wear-resistant protrusions (4).

2. The PE film with an anti-crush layer structure according to claim 1, characterized in that: The integrated buffer and heat insulation layer (2) includes polyurethane foam (201), rubber columns (202) and tensile-resistant connecting mesh (203). The polyurethane foam (201) is provided with mounting holes, and the rubber columns (202) are fixedly connected in the mounting holes.

3. The PE film with an anti-crushing layer structure according to claim 2, characterized in that: The number of mounting holes and the number of rubber columns (202) are both multiple, and the mounting holes and the rubber columns (202) are all evenly distributed in a rectangular shape. The tensile-resistant connecting mesh (203) is fixedly connected to the top of the polyurethane foam (201) and the rubber columns (202).

4. The PE film with an anti-crushing layer structure according to claim 3, characterized in that: When the rubber column (202) deforms and rebounds, it can pull the polyurethane foam (201) back to its original position through the tensile-resistant connecting mesh (203).

5. The PE film with an anti-crushing layer structure according to claim 1, characterized in that: The base PE film (1), the buffer and heat insulation integrated layer (2), and the wear-resistant layer (3) are connected by a hot-pressing composite process.

6. The PE film with an anti-crushing layer structure according to claim 1, characterized in that: The wear-resistant protrusions (4) are hemispherical and are evenly distributed in a rectangular shape on the wear-resistant layer (3).

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