An antistatic PE composite film structure

By designing circular grooves and connecting grooves on the PE film, and setting conductive layers, conductive blocks, and coating antistatic agents within the limiting frame, the problem of static electricity generated by friction during the transportation and use of PE film is solved, achieving better static dispersion and preventing static accumulation, thus improving the antistatic performance of the film.

CN224439260UActive Publication Date: 2026-06-30ZHEJIANG NINGDING PACKAGING TECH CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ZHEJIANG NINGDING PACKAGING TECH CO LTD
Filing Date
2025-08-08
Publication Date
2026-06-30

AI Technical Summary

Technical Problem

PE film is prone to static electricity due to friction during production, transportation and use, and existing technologies are difficult to effectively prevent the generation and accumulation of static electricity.

Method used

The design incorporates circular grooves and connecting grooves to increase the contact area between the membrane and the outside world. Conductive layers, conductive blocks, metal particles, and conductive meshes are placed within the limiting frame, and an antistatic agent is applied. These structures and materials disperse and release static electricity.

Benefits of technology

It effectively reduces static electricity generated by friction during transportation and use, enhances the anti-static effect, prevents static electricity accumulation, and improves the practicality and safety of the membrane.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224439260U_ABST
    Figure CN224439260U_ABST
Patent Text Reader

Abstract

This utility model relates to an antistatic PE composite film structure, comprising: a film body, with easy-tear grooves at both ends of the film body, the easy-tear grooves having a serrated structure design; multiple sets of circular grooves on the surface of the film body, with connecting grooves between the multiple sets of circular grooves, the interiors of the circular grooves and the connecting grooves being interconnected; a limiting frame fitted at the top and bottom of the film body, with multiple sets of protrusions fixedly connected to the top of the limiting frame, and a hydrophobic groove between two sets of protrusions; the inner sidewall of the limiting frame is coated with antistatic adhesive, and the limiting frame is bonded to the film body by the antistatic adhesive. The beneficial effect of this utility model is that, through the design of the circular grooves and connecting grooves, static electricity generated after friction with external objects during transportation can be reduced, greatly improving the overall practicality.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to the field of PE film technology, specifically to an antistatic PE composite film structure. Background Technology

[0002] PE film is the simplest high-molecular organic compound in terms of structure and is the most widely used polymer material in the world today. PE film uses special polyethylene plastic film as the base material and is divided into high-density polyethylene protective film, medium-density polyethylene and low-density polyethylene according to different densities.

[0003] In existing technologies, static electricity is easily generated during the production of PE film due to friction between the melt and the die head, and friction between the film forming roller and the guide roller. Usually, two methods, superconducting electrostatic brush and ion gas, are used to treat PE film to prevent static electricity. However, these methods are limited to the production workshop. During transportation and use, static electricity will still be generated due to external friction, which will affect normal use. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides an antistatic PE composite film structure. Through the design of circular grooves and connecting grooves, it can reduce static electricity generated after friction with external objects during transportation, greatly improving the overall practicality.

[0005] This utility model provides the following technical solution: an antistatic PE composite membrane structure, comprising: a membrane body, with easy-tear grooves at both ends of the membrane body, the easy-tear grooves having a sawtooth structure design, multiple sets of circular grooves on the surface of the membrane body, connecting grooves between the multiple sets of circular grooves, the interiors of the circular grooves and the connecting grooves being interconnected, a limiting frame fitted at the top and bottom of the membrane body, multiple sets of protrusions fixedly connected to the top of the limiting frame, and a hydrophobic groove between two sets of protrusions.

[0006] As a preferred embodiment of this utility model, the inner wall of the limiting frame is coated with antistatic adhesive, and the limiting frame is bonded to the membrane body by the antistatic adhesive.

[0007] As a preferred embodiment of this utility model, an adhesive layer is fixedly connected to the outer side of the limiting frame, an adhesive film is attached to the outer side of the adhesive layer, and an auxiliary block is fixedly connected to one end of the adhesive film.

[0008] As a preferred embodiment of this utility model, the limiting frame is composed of a reinforcing layer and a conductive layer. The reinforcing layer is disposed on the back side of the adhesive layer, and the conductive layer is disposed on the side of the reinforcing layer away from the adhesive layer.

[0009] As a preferred embodiment of this utility model, the interior of the reinforcing layer is provided with a slot, and a first glass fiber tube and a second glass fiber tube are fixedly connected inside the slot, with the first glass fiber tube and the second glass fiber tube having a mesh structure design.

[0010] As a preferred embodiment of this utility model, multiple sets of conductive blocks are fixedly connected inside the conductive layer, and a slot is formed between the multiple sets of conductive blocks. Multiple sets of metal particles are fixedly connected to the surface of the slot.

[0011] As a preferred embodiment of this utility model, a conductive mesh is fixedly connected inside the hollow groove. The conductive mesh is made of metal wire, and an antistatic agent is coated on the side of the conductive layer away from the reinforcing layer.

[0012] The beneficial effects of this utility model are:

[0013] In this invention, the design of multiple sets of circular grooves and connecting grooves on the surface of the membrane increases the contact area between the membrane and the external environment, allowing the antistatic agent coated on the surface of the membrane to play a better role and reducing static electricity generated by friction during transportation and use.

[0014] In this invention, multiple sets of conductive blocks are fixedly connected inside the conductive layer to form a hollow groove. Multiple sets of metal particles are fixedly connected to the surface of the hollow groove, and a conductive mesh is fixedly connected inside. These designs help to disperse and release static electricity and enhance the overall antistatic effect. At the same time, an antistatic agent is coated on the side of the conductive layer away from the reinforcing layer to further suppress the accumulation of static electricity. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the membrane of this utility model;

[0017] Figure 3 This is a schematic diagram of the limiting frame structure of this utility model;

[0018] Figure 4 This is a schematic diagram of the internal structure of the limiting frame of the utility model;

[0019] In the figure: 1. Membrane body; 2. Easy-tear groove; 4. Circular groove; 5. Connecting groove; 6. Limiting frame; 601. Reinforcing layer; 602. Conductive layer; 603. First glass fiber tube; 604. Second glass fiber tube; 605. Conductive block; 606. Conductive grid; 7. Protrusion; 8. Hydrophobic groove; 9. Adhesive layer; 10. Adhesive film; 11. Auxiliary block. Detailed Implementation

[0020] To make the technical problems solved by this utility model, the technical solutions adopted, and the technical effects achieved clearer, the technical solutions of the embodiments of this utility model will be further described in detail below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0021] Example

[0022] like Figures 1 to 4 As shown, an antistatic PE composite membrane structure includes: a membrane body 1, with easy-tear grooves 2 at both ends of the membrane body 1, the easy-tear grooves 2 having a sawtooth structure design; multiple sets of circular grooves 4 are formed on the surface of the membrane body 1, and connecting grooves 5 are formed between the multiple sets of circular grooves 4, the interiors of the circular grooves 4 and the connecting grooves 5 are interconnected; limiting frames 6 are fitted at the top and bottom of the membrane body 1, and multiple sets of protrusions 7 are fixedly connected to the top of the limiting frames 6, with a hydrophobic groove 8 formed between two sets of protrusions 7; by pulling out one end of the membrane body 1, and by tearing the easy-tear grooves... Hold the two ends of groove 2 and pull in opposite directions. Its serrated design will break easily, making it convenient and practical. No auxiliary tools are needed to cut it. By spraying antistatic agent on the surface of membrane 1, and with the circular groove 4 and connecting groove 5 making the outside of membrane 1 uneven, the antistatic agent will remain for a longer time. During transportation, membrane 1 reduces static electricity generated by friction with external objects. The design of the protrusion 7 improves the strength of the limit frame 6. The hydrophobic groove 8 effectively prevents water vapor from remaining on its outside.

[0023] In this embodiment, the inner wall of the limiting frame 6 is coated with antistatic adhesive. The limiting frame 6 is bonded to the membrane 1 by the antistatic adhesive. The coating of the inner wall of the limiting frame 6 with antistatic adhesive achieves the adhesion between the limiting frame 6 and the membrane 1, protecting the membrane 1 and preventing it from breaking due to pulling force during use.

[0024] In this embodiment, an adhesive layer 9 is fixedly connected to the outer side of the limiting frame 6, and an adhesive film 10 is attached to the outside of the adhesive layer 9. An auxiliary block 11 is fixedly connected to one end of the adhesive film 10. The operator clamps the auxiliary block 11 with his / her fingers and then peels it off. The adhesive film 10 is then separated from the adhesive layer 9, and the adhesive layer 9 is directly exposed to the outside. By placing the adhesive layer 9 at the designated position, the laying of the membrane 1 is completed.

[0025] In this embodiment, the limiting frame 6 is composed of a reinforcing layer 601 and a conductive layer 602. The reinforcing layer 601 is disposed on the back side of the adhesive layer 9, and the conductive layer 602 is disposed on the side of the reinforcing layer 601 away from the adhesive layer 9. A slot is formed inside the reinforcing layer 601, and a first glass fiber tube 603 and a second glass fiber tube 604 are fixedly connected inside the slot. The first glass fiber tube 603 and the second glass fiber tube 604 are designed in a mesh structure. The first glass fiber tube 603 and the second glass fiber tube 604 are located inside the reinforcing layer 601 to improve compressive and tensile strength. Glass fiber has high strength and high modulus, and forms a skeleton support in the reinforcing layer 601 to share the external load. When stretched axially, the fiber resists deformation and breakage like a rope. Under circumferential pressure, the fiber forms a hoop structure to disperse the pressure and avoid local collapse.

[0026] In this embodiment, multiple sets of conductive blocks 605 are fixedly connected inside the conductive layer 602, and a slot is formed between the multiple sets of conductive blocks 605. Multiple sets of metal particles are fixedly connected to the surface of the slot, and a conductive mesh 606 is fixedly connected inside the slot. The conductive mesh 606 is made of metal wire. An antistatic agent is coated on the side of the conductive layer 602 away from the reinforcing layer 601. By placing the conductive mesh 606 made of metal wire in the slot between the conductive blocks 605, the conductive mesh 606 helps to disperse and release static electricity and enhance the antistatic effect. The metal particles filling the slot increase the conductivity and antistatic properties of the material, helping to reduce static electricity accumulation and release. At the same time, an antistatic agent is coated on one side of the conductive layer 602 to change the surface energy and charge distribution to suppress the accumulation of static electricity.

[0027] Implementation Plan: By pulling out one end of the membrane 1, holding both ends of the easy-tear groove 2, and then pulling in opposite directions, its serrated design will cause it to break easily, making it convenient and practical without the need for auxiliary tools for cutting. The surface of the membrane 1 is sprayed with an antistatic agent, and the circular groove 4 and connecting groove 5 create an uneven surface, allowing the antistatic agent to remain for a longer period. During transportation, this reduces static electricity generated by friction with external objects. The design of the raised points 7 enhances the strength of the limiting frame 6, and the hydrophobic groove 8 effectively prevents moisture residue from remaining on its exterior. The inner wall of the limiting frame 6 is coated with antistatic adhesive, ensuring a proper fit between the limiting frame 6 and the membrane 1, protecting the membrane 1 from tearing due to pulling force during use. The operator clamps the auxiliary block 11 with their fingers, then peels it off, and then separates the adhesive film 10 from the adhesive layer 9. The adhesive layer 9 is directly exposed to the outside. After the adhesive layer 9 is placed at the designated position, the membrane 1 is laid. The first glass fiber tube 603 and the second glass fiber tube 604 are located inside the reinforcing layer 601 to improve compressive and tensile strength. Glass fiber has high strength and high modulus. It forms a skeleton support in the reinforcing layer 601 to share the external load. When stretched axially, the fiber resists deformation and breakage like a rope. Under circumferential pressure, the fiber forms a hoop structure to disperse the pressure and avoid local collapse. By placing the conductive mesh 606 made of metal wire in the slots between the conductive blocks 605, the conductive mesh 606 helps to disperse and release static electricity and enhance the antistatic effect. The metal particles filled in the slots increase the conductivity and antistatic properties of the material and help reduce static electricity accumulation and release. At the same time, an antistatic agent is coated on one side of the conductive layer 602 to change the surface energy and charge distribution to suppress the accumulation of static electricity.

[0028] Although preferred embodiments of the present invention have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of the present invention.

[0029] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. An antistatic PE composite film structure, characterized in that, include: The membrane body has easy-tear grooves at both ends, which are designed with a serrated structure. Multiple sets of circular grooves are opened on the surface of the membrane body, and connecting grooves are opened between the multiple sets of circular grooves. The interiors of the circular grooves and connecting grooves are interconnected. Limiting frames are fitted at the top and bottom of the membrane body. Multiple sets of protrusions are fixedly connected to the top of the limiting frames, and a hydrophobic groove is opened between the two sets of protrusions.

2. The antistatic PE composite film structure according to claim 1, characterized in that, The inner wall of the limiting frame is coated with antistatic adhesive, and the limiting frame is bonded to the membrane body by the antistatic adhesive.

3. The antistatic PE composite film structure according to claim 1, characterized in that, An adhesive layer is fixedly connected to the outside of the limiting frame, and an adhesive film is attached to the outside of the adhesive layer. An auxiliary block is fixedly connected to one end of the adhesive film.

4. The antistatic PE composite film structure according to claim 1, characterized in that, The limiting frame consists of a reinforcing layer and a conductive layer. The reinforcing layer is located on the back of the adhesive layer, and the conductive layer is located on the side of the reinforcing layer away from the adhesive layer.

5. The antistatic PE composite film structure according to claim 4, characterized in that, The interior of the reinforcing layer has a hollow groove, and a first glass fiber tube and a second glass fiber tube are fixedly connected inside the hollow groove. The first glass fiber tube and the second glass fiber tube are designed in a mesh structure.

6. The antistatic PE composite film structure according to claim 4, characterized in that, Multiple sets of conductive blocks are fixedly connected inside the conductive layer, forming a slot between the multiple sets of conductive blocks, and multiple sets of metal particles are fixedly connected to the surface of the slot.

7. The antistatic PE composite film structure according to claim 6, characterized in that, The interior of the empty slot is fixedly connected with a conductive mesh made of metal wire, and the conductive layer is coated with an antistatic agent on the side away from the reinforcing layer.