Degradable PE wrapping film

Abstract

The utility model discloses a degradable PE wrapping film which comprises a wrapping film protection assembly which is arranged on the outer side of a wrapping film assembly and used for protection, and an inner winding drum assembly is arranged in the wrapping film assembly. Compared with the prior art, the device has the advantages that the device can protect the PE wrapping film through the wrapping film protection assembly, meanwhile, the influence of dust on the PE wrapping film is reduced, replacement, extraction and use of the PE wrapping film are not affected, the PE wrapping film is made to be composited in a multi-layer mode through the wrapping film assembly, the strength is higher, the use requirement of a larger range is met, and the service life of the PE wrapping film is prolonged. Each section of the PE wrapping film is arranged in a transverse way, so that the cutting use of the PE wrapping film is more standard, the winding of the PE wrapping film is firmer by arranging an internal winding drum assembly, and the PE wrapping film can be conveniently extracted and used in cooperation with a wrapping film protection assembly.

Description

Technical Field

[0001] This utility model relates to the field of PE stretch film technology, specifically a biodegradable PE stretch film. Background Technology

[0002] Traditional PE stretch film, while possessing advantages such as high tensile strength, good self-adhesion, high transparency, and waterproof and dustproof properties, is widely used in combination wrapping of industrial products. However, it suffers from the problem of being difficult to degrade. With its large-scale use, white pollution has become increasingly serious, placing significant pressure on the environment. As people's environmental awareness continues to grow, the environmental requirements for plastic products are also becoming increasingly stringent. Reducing the use of single-use plastic products and lowering environmental pollution has become a social consensus. This has prompted companies to research and produce biodegradable PE stretch film to replace traditional non-degradable products. Governments worldwide have introduced relevant environmental policies and regulations to protect the environment and promote sustainable development, restricting or prohibiting the use of non-degradable single-use plastic products. This provides policy support and market impetus for the application of biodegradable PE stretch film. However, general biodegradable PE stretch film has a relatively simple structure, which cannot provide adequate protection for PE stretch film. Moreover, PE stretch film is mostly a single-layer structure with low strength and limited applicability.

[0003] According to announcement number CN214927823U, this utility model belongs to the field of plastic product technology, specifically relating to a photodegradable PE stretch film. This photodegradable PE stretch film includes: a PE composite layer, a biodegradable layer, and a photosensitive decomposition layer sequentially laminated together; wherein the PE composite layer is suitable for controlled degradation after a set time; the biodegradable layer is suitable for degradation by microorganisms; and the photosensitive decomposition layer is suitable for degradation under light irradiation. By setting the PE composite layer, biodegradable layer, and photosensitive decomposition layer to be degradable, this utility model ensures the mechanical properties and low cost of the photodegradable PE stretch film while maintaining its degradability, thus achieving the goals of environmental protection and green production.

[0004] The aforementioned biodegradable PE stretch film has a relatively simple structure and cannot provide good protection for PE stretch film. Moreover, most PE stretch films are single-layer structures with low strength and limited applicability. Therefore, there is an urgent need for a biodegradable PE stretch film with better protection and higher strength. Utility Model Content

[0005] The purpose of this invention is to provide a biodegradable PE stretch film to solve the problems in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a biodegradable PE stretch film, comprising: a stretch film protection assembly for protection on the outside of the stretch film assembly, wherein an internal roll assembly is provided inside the stretch film assembly.

[0007] Preferably, the stretch film protection assembly includes a stretch film protection cylinder with an internal sleeve rod inside. A stretch film protection cover is inserted into the right side of the stretch film protection cylinder and the internal sleeve rod via a plug-in fixing rod and a connecting fixing rod. By providing the stretch film protection assembly, the device can protect the PE stretch film, reduce the impact of dust on the PE stretch film, and not affect the replacement and extraction of the PE stretch film.

[0008] Preferably, the protective sleeve of the stretch film has a cavity inside that cooperates with the stretch film assembly and the internal roll assembly. The front end of the protective sleeve has a pull-out groove that cooperates with the stretch film assembly. The right side of the protective sleeve has five sets of insertion grooves that cooperate with the connecting and fixing rods. The internal sleeve has insertion grooves that cooperate with the insertion and fixing rods, providing the necessary conditions for the replacement and sleeve of the PE stretch film.

[0009] Preferably, the stretch film assembly includes a PE stretch film, which has cutting strips at regular intervals. By using the stretch film assembly, the PE stretch film is multi-layered and composited, resulting in higher strength and meeting a wider range of application needs. The cutting strips on the PE stretch film at each interval make its cutting and use more standardized.

[0010] Preferably, the PE stretch film includes a first film layer, a second film layer covering the right side of the first film layer, and a third film layer covering the right side of the second film layer, with multiple layers to increase the strength of the PE stretch film.

[0011] Preferably, the first film layer is a photodegradable layer, the second film layer is a biodegradable layer, and the third film layer is a PE composite layer. The different structural compositions improve the applicability of the PE wrapping film.

[0012] Preferably, the internal roll assembly includes an internal winding tube, and an external fixing block is fixedly connected to the outside of the internal winding tube. By providing the internal roll assembly, the PE wrapping film is wrapped more firmly, which facilitates the extraction and use of the PE wrapping film in conjunction with the wrapping film protection assembly.

[0013] Preferably, the six sets of external fixing blocks are relatively low in height, and the stretch film assembly is wrapped around the outside of the external fixing blocks, providing a basis for the use of PE stretch film.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows: By setting up a wrapping film protection component, the device can protect the PE wrapping film and reduce the impact of dust on the PE wrapping film, without affecting the replacement and extraction of the PE wrapping film. By setting up a wrapping film component, the PE wrapping film can be multi-layered and composited, resulting in higher strength and meeting the needs of a wider range of applications. The horizontal stripe setting of each section of the PE wrapping film makes its cutting and use more standardized. By setting up an internal roll assembly, the wrapping of the PE wrapping film is more secure, and it is convenient to extract and use the PE wrapping film in conjunction with the wrapping film protection component. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of the left sloping surface of a biodegradable PE wrapping film according to this utility model;

[0016] Figure 2 This is a schematic diagram of the overall internal structure of the left side of a biodegradable PE wrapping film according to this utility model;

[0017] Figure 3 This is a schematic diagram of the structure of a biodegradable PE stretch film protective component according to the present invention;

[0018] Figure 4 This is a schematic diagram of the structure of a biodegradable PE stretch film assembly according to the present invention;

[0019] Figure 5 This is a schematic diagram of the cross-section of a biodegradable PE stretch film assembly according to the present invention;

[0020] Figure 6 This is a schematic diagram of the internal roll assembly in a biodegradable PE stretch film according to this utility model.

[0021] In the diagram: 1. Stretch film protection assembly; 11. Stretch film protection tube; 12. Inner sleeve rod; 13. Insertion fixing rod; 14. Connecting fixing rod; 15. Stretch film protection cover; 2. Stretch film assembly; 21. PE stretch film; 211. First film layer; 212. Second film layer; 213. Third film layer; 3. Inner roll assembly; 31. Inner winding tube; 32. Outer fixing block. Detailed Implementation

[0022] 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 of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figure 1 and Figure 2 A biodegradable PE stretch film includes: a stretch film protection component 1 protecting the outside of the stretch film assembly 2 for protection, and an internal roll assembly 3 provided inside the stretch film assembly 2.

[0024] Implementation 1: Please refer to Figures 1 to 3 To enhance the protective properties and ease of use of the PE stretch film 21, the stretch film protection assembly 1 includes a stretch film protection cylinder 11. An internal sleeve 12 is provided inside the stretch film protection cylinder 11. A stretch film protection cover 15 is inserted into the right side of the stretch film protection cylinder 11 and the internal sleeve 12 via a plug-in fixing rod 13 and a connecting fixing rod 14. By providing the stretch film protection assembly 1, the device can protect the PE stretch film 21 while reducing the impact of dust on the PE stretch film 21, without affecting the replacement and extraction of the PE stretch film 21. The stretch film protection cylinder 11 has a cavity that cooperates with the stretch film assembly 2 and the internal roll assembly 3. An extraction groove that cooperates with the stretch film assembly 2 is opened at the front end of the stretch film protection cylinder 11. Five sets of plug-in grooves that cooperate with the connecting fixing rods 14 are opened on the right side of the stretch film protection cylinder 11. The internal sleeve 12 has a plug-in groove that cooperates with the plug-in fixing rod 13, providing the necessary conditions for the replacement and insertion of the PE stretch film 21.

[0025] Implementation 2: Please refer to Figure 2 , Figure 4 , Figure 5 , Figure 6 To increase the strength of the PE stretch film 21, the stretch film assembly 2 includes the PE stretch film 21. The PE stretch film 21 has cutting grooves at regular intervals. By incorporating the stretch film assembly 2, the PE stretch film 21 is multi-layered, resulting in higher strength and meeting a wider range of application needs. The grooves at each interval ensure more standardized cutting. The PE stretch film 21 includes a first film layer 211, a second film layer 212 covering the right side of the first film layer 211, and a third film layer 213 covering the right side of the second film layer 212. This multi-layered arrangement increases the strength of the PE stretch film 21. The first film layer 211 is a photodecomposition layer, and the second film layer 212 is a biological decomposition layer. The third film layer 213 is a PE composite layer with different structural compositions, which improves the applicability of the PE stretch film 21. The internal roll assembly 3 includes an internal winding tube 31, and an external fixing block 32 is fixedly connected to the outside of the internal winding tube 31. By setting the internal roll assembly 3, the PE stretch film 21 is wound more firmly, which facilitates the extraction and use of the PE stretch film 21 in conjunction with the stretch film protection assembly 1. The six sets of external fixing blocks 32 are relatively low, and the stretch film assembly 2 is wound on the outside of the external fixing blocks 32, providing a basis for the use of the PE stretch film 21. The third film layer 213 is composed of PE with special photosensitizers, biodegradable agents and other additives.

[0026] Working principle: When PE stretch film 21 is needed, it can be taken out from stretch film protection component 1. When it needs to be replaced, open stretch film protection cover 15, replace stretch film component 2 and internal roll component 3, and then insert and fix it by inserting and fixing rod 13 and connecting fixing rod 14, and it can continue to be used.

[0027] The standard parts used in this embodiment can be purchased directly from the market, while the non-standard structural parts described in the specification and drawings can be processed without any doubt based on existing technical common sense. At the same time, the connection methods of each component adopt mature conventional methods in the existing technology, and the machinery, parts and equipment all adopt conventional models in the existing technology, so they will not be described in detail here.

[0028] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A biodegradable PE stretch film, characterized in that, include: A protective film assembly (1) is provided on the outside of the stretch film assembly (2) for protection. An internal roll assembly (3) is provided inside the stretch film assembly (2). The protective film assembly (1) includes a protective film tube (11). An internal sleeve rod (12) is provided inside the protective film tube (11). A protective film cover (15) is inserted into the right side of the protective film tube (11) and the internal sleeve rod (12) through a plug-in fixing rod (13) and a connecting fixing rod (14). A cavity is provided inside the protective film tube (11) that cooperates with the stretch film assembly (2) and the internal roll assembly (3). A pull-out groove that cooperates with the stretch film assembly (2) is opened at the front end of the protective film tube (11). Five sets of plug-in grooves that cooperate with the connecting fixing rods (14) are opened on the right side of the protective film tube (11). The internal sleeve rod (12) The insert groove is provided to cooperate with the insert fixing rod (13). The wrapping film assembly (2) includes a PE wrapping film (21). The PE wrapping film (21) is provided with cutting crossbars at intervals. The PE wrapping film (21) includes a first film layer (211). The right side of the first film layer (211) is covered by a second film layer (212). The right side of the second film layer (212) is covered by a third film layer (213). The first film layer (211) is a photodegradation layer. The second film layer (212) is a biodegradation layer. The third film layer (213) is a PE composite layer. The internal roll assembly (3) includes an internal winding tube (31). An external fixing block (32) is fixedly connected to the outside of the internal winding tube (31). The six sets of external fixing blocks (32) are relatively low in height. The wrapping film assembly (2) is wrapped around the outside of the external fixing block (32).

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