High-strength environment-friendly wrapping film

Abstract

The utility model relates to the technical field of film production, especially to a high-strength environment-friendly wrapping film, the film body of the utility model is composed of three layers of self-adhesive layer, reinforcing layer and antistatic layer. The complementary of different layer material performance significantly improves the overall structural strength of the wrapping film. The reinforcing layer of the wrapping film selects polyethylene fiber reinforcement, the main base material of which is linear low-density polyethylene and metallocene polyethylene, and is obtained by physical blending with medium-density polyethylene as a compatibilizer. Linear low-density polyethylene has good flexibility and puncture resistance, metallocene polyethylene has high strength and excellent mechanical properties, and medium-density polyethylene as a compatibilizer can ensure uniform mixing of all components, so that the polyethylene fiber reinforcement has excellent strength and toughness, and the ability of the wrapping film to resist external impact and puncture is enhanced.

Description

Technical Field

[0001] This utility model relates to the field of film production technology, and in particular to a high-strength environmentally friendly stretch film. Background Technology

[0002] The application of stretch film in the packaging field mainly focuses on protecting goods, improving transportation safety, and simplifying operational processes. Specific application scenarios are as follows: Stretch film forms a buffer layer by wrapping items from all directions, effectively preventing damage caused by collisions and compression during transportation. For example, fragile items such as glass pot lids and dishes can remain intact even after being dropped from a height after being wrapped with stretch film; clothing, books, and other items can have reduced dust adhesion and moisture problems after use. Stretch film is mostly used for quick packaging through a "circular pulling" technique.

[0003] Existing stretch films suffer from insufficient structural strength during use. They are prone to damage when subjected to external impacts or punctures by sharp objects, leading to packaging failure. Therefore, it is necessary to optimize and improve existing stretch films. Summary of the Invention

[0004] The purpose of this invention is to overcome the aforementioned problems in traditional technologies and provide a high-strength, environmentally friendly stretch film.

[0005] To achieve the above-mentioned technical objectives and effects, this utility model is implemented through the following technical solution: A high-strength, environmentally friendly stretch film, the film body of which is composed of three composite layers: a self-adhesive layer, a reinforcing layer, and an antistatic layer; The self-adhesive layer is linear low-density polyethylene; The reinforcing layer is a polyethylene fiber reinforced body; The antistatic layer is an ethoxylated alkylamine.

[0006] Furthermore, in the aforementioned high-strength environmentally friendly stretch film, the film body is provided with several sets of tear openings at equal intervals along its length.

[0007] Furthermore, in the aforementioned high-strength environmentally friendly stretch film, the tear opening is triangular in shape with the tip pointing inward.

[0008] Furthermore, in the above-mentioned high-strength environmentally friendly stretch film, the thickness of the self-adhesive layer is 3 to 5 μm.

[0009] Furthermore, in the aforementioned high-strength environmentally friendly stretch film, the main substrate of the polyethylene fiber reinforcement is linear low-density polyethylene and metallocene polyethylene, and the polyethylene fiber reinforcement can be obtained by physical blending of medium-density polyethylene as a compatibilizer.

[0010] Furthermore, in the above-mentioned high-strength environmentally friendly stretch film, the mass ratio of linear low-density polyethylene, metallocene polyethylene, and medium-density polyethylene is 6-8:2-3:1.

[0011] Furthermore, in the above-mentioned high-strength environmentally friendly stretch film, the thickness of the reinforcing layer is 5-8 μm.

[0012] Furthermore, in the above-mentioned high-strength environmentally friendly stretch film, the thickness of the antistatic layer is 2-3 μm.

[0013] The beneficial effects of this utility model are: 1. The stretch film of this utility model is composed of three layers: a self-adhesive layer, a reinforcing layer, and an antistatic layer. This composite structure significantly improves the overall structural strength of the stretch film through the complementary properties of the different layer materials. When the stretch film is subjected to external impact or puncture by a sharp object, the layers work together to effectively resist external damage, reduce the occurrence of damage, and thus ensure the effectiveness of the packaging.

[0014] 2. The reinforcing layer of the stretch film of this utility model is made of polyethylene fiber reinforcement. Its main substrate is linear low-density polyethylene and metallocene polyethylene, which are physically blended using medium-density polyethylene as a compatibilizer. Linear low-density polyethylene has good flexibility and puncture resistance, metallocene polyethylene has high strength and excellent mechanical properties, and medium-density polyethylene as a compatibilizer ensures that the components are uniformly mixed, giving the polyethylene fiber reinforcement excellent strength and toughness, greatly enhancing the stretch film's ability to resist external impact and puncture.

[0015] 3. The stretch film of this utility model has several sets of tear openings evenly spaced along its length, and the tear openings are triangular in shape with the pointed ends facing inward. This design allows users to easily and quickly tear the stretch film along the tear openings without the need for other tools when using it for packaging, greatly simplifying the operation process and improving packaging efficiency, making it especially suitable for scenarios requiring rapid packaging.

[0016] 4. The self-adhesive layer of this invention uses linear low-density polyethylene with a thickness of 3-5 μm. Linear low-density polyethylene has good self-adhesion, enabling it to tightly adhere to the packaged items during the wrapping process, forming a stable connection between the wrapping film and the items, preventing loosening due to shaking during transportation, and ensuring the stability of the packaging. The antistatic layer uses ethoxylated alkylamine with a thickness of 2-3 μm. During packaging and transportation, static electricity is easily generated between the items and the wrapping film due to friction. Static electricity may attract dust, affecting the cleanliness of the items, and may also damage some electronic components. Ethoxylated alkylamine has good antistatic properties, effectively eliminating static electricity on the surface of the wrapping film and avoiding the hazards caused by static electricity.

[0017] Of course, any product implementing this utility model does not necessarily need to achieve all of the above advantages at the same time. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the composition of the stretch film of this utility model; In the attached diagram, the components represented by each number are as follows: 1-Self-adhesive layer, 2-Reinforcing layer, 3-Antistatic layer, 4-Tear opening. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0021] like Figure 1 As shown, this embodiment provides a high-strength environmentally friendly stretch film, which is composed of three layers: a self-adhesive layer 1, a reinforcing layer 2, and an antistatic layer 3.

[0022] In this embodiment, the self-adhesive layer 1 is made of linear low-density polyethylene with a thickness of 3-5 μm. Linear low-density polyethylene has good self-adhesion, which can tightly adhere to the packaged items during the wrapping process, forming a stable connection between the wrapping film and the items, preventing it from loosening due to shaking during transportation, and ensuring the stability of the packaging.

[0023] In this embodiment, the reinforcing layer 2 is made of polyethylene fiber reinforcement with a thickness of 5–8 μm. Its main substrate is linear low-density polyethylene and metallocene polyethylene, which are physically blended using medium-density polyethylene as a compatibilizer. Linear low-density polyethylene has good flexibility and puncture resistance, metallocene polyethylene has high strength and excellent mechanical properties, and medium-density polyethylene, as a compatibilizer, ensures uniform mixing of all components, giving the polyethylene fiber reinforcement excellent strength and toughness, greatly enhancing the stretch film's resistance to external impacts and punctures.

[0024] In this embodiment, the antistatic layer 3 is made of ethoxylated alkylamine with a thickness of 2–3 μm. During packaging and transportation, static electricity can easily be generated between the items and the stretch film due to friction. This static electricity may attract dust, affecting the cleanliness of the items, and may also damage some electronic components. Ethoxylated alkylamine has excellent antistatic properties and can effectively eliminate static electricity on the surface of the stretch film, avoiding the hazards caused by static electricity.

[0025] In this embodiment, the stretch film has several sets of tear openings 4 evenly spaced along its length, and the tear openings 4 are triangular in shape with the pointed ends facing inward. This design allows users to easily and quickly tear the stretch film along the tear openings without the need for other tools when using it for packaging, greatly simplifying the operation process and improving packaging efficiency, making it particularly suitable for scenarios requiring rapid packaging.

[0026] In this embodiment, the mass ratio of linear low-density polyethylene, metallocene polyethylene, and medium-density polyethylene is 6-8:2-3:1.

[0027] One specific application of this embodiment is that the stretch film is composed of three layers: a self-adhesive layer 1, a reinforcing layer 2, and an antistatic layer 3. This composite structure significantly improves the overall structural strength of the stretch film through the complementary properties of the different layer materials. When the stretch film is subjected to external impact or puncture by a sharp object, the layers work together to effectively resist damage, reduce breakage, and thus ensure the effectiveness of the packaging.

[0028] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to specific implementation methods. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A high-strength, environmentally friendly stretch film, characterized in that, The film is composed of three layers: a self-adhesive layer, a reinforcing layer, and an antistatic layer. The self-adhesive layer is linear low-density polyethylene; The reinforcing layer is a polyethylene fiber reinforced body; The antistatic layer is an ethoxylated alkylamine.

2. The high-strength environmentally friendly stretch film according to claim 1, characterized in that, The wrapping film has several sets of tear openings equidistantly spaced along its length.

3. The high-strength environmentally friendly stretch film according to claim 2, characterized in that, The tear opening is triangular in shape with the pointed end facing inward.

4. The high-strength environmentally friendly stretch film according to claim 1, characterized in that, The thickness of the self-adhesive layer is 3–5 μm.

5. The high-strength environmentally friendly stretch film according to claim 1, characterized in that, The thickness of the reinforcing layer is 5–8 μm.

6. The high-strength environmentally friendly stretch film according to claim 1, characterized in that, The thickness of the antistatic layer is 2–3 μm.

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