High barrier high strength composite film bag

Abstract

The utility model discloses high barrier high strength composite film bag relates to composite film bag technical field, including aluminized film and reinforcing assembly, the side of aluminized film installs fixed side, and the surface of fixed side is equipped with fixed hole, and the reinforcing assembly for increasing barrier property and strength is arranged in the inside of aluminized film, and reinforcing assembly includes glue layer, thin nylon layer, transparent mesh and polyethylene layer, the inside of glue layer is provided with thin nylon layer, and the inner layer of thin nylon layer is provided with transparent mesh, the inboard of transparent mesh is connected with polyethylene layer, the inboard of polyethylene layer is provided with hygroscopic hole membrane. This high barrier high strength composite film bag is through thin nylon layer, and the flexibility is excellent, and the impact resistance and puncture resistance, still can keep strength under low temperature environment, is fit for the scene that needs repeatedly folding or loading sharp article, and the low temperature resistance of polyethylene layer provides certain toughness support simultaneously, and transparent mesh plays the role of framework, provides the tensile resistance of film bag, and increases the durability of film bag.

Description

Technical Field

[0001] This utility model relates to the field of composite film bag technology, specifically to high-barrier and high-strength composite film bags. Background Technology

[0002] Composite film bags are packaging bags made of two or more different film substrates, bonded together through processes such as dry lamination, solvent-free lamination, and extrusion lamination, combined with adhesives or hot melt lamination. They can be customized to block oxygen, water vapor, light, and other functions, and are widely used in food, medicine, electronics and other fields to meet the packaging and protection needs of different items.

[0003] However, existing composite film bags are susceptible to external light and moisture when used, and the poor barrier properties and strength of the film bags themselves lead to product failure. Utility Model Content

[0004] The purpose of this invention is to provide a high-barrier, high-strength composite film bag to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a high-barrier, high-strength composite film bag, comprising an aluminized film and a reinforcing component. The aluminized film has a fixed edge installed on its side, and the surface of the fixed edge has a fixing hole. The reinforcing component, which increases barrier properties and strength, is disposed inside the aluminized film. The reinforcing component includes an adhesive layer, a thin nylon layer, a transparent mesh, and a polyethylene layer. The adhesive layer has a thin nylon layer inside it, and the inner layer of the thin nylon layer has a transparent mesh. The inner side of the transparent mesh is connected to the polyethylene layer, and the inner side of the polyethylene layer has a moisture-absorbing membrane.

[0006] Furthermore, the thin nylon layer and the transparent mesh are tightly bonded together, and the transparent mesh is tightly bonded together with the polyethylene layer.

[0007] Furthermore, the surface of the aluminized film is provided with an edge folding groove, and the aluminized film and the edge folding groove are an integrated structure.

[0008] Furthermore, the top of the moisture-absorbing membrane is provided with a protective component to prevent accidental tipping, and the protective component includes an adhesive strip and an anti-tipping sheet, with the lower end of the adhesive strip connected to the anti-tipping sheet.

[0009] Furthermore, the adhesive strip and the anti-tipping sheet are an integrated structure, and the moisture-absorbing membrane and the adhesive strip are bonded together.

[0010] Furthermore, the lower end of the aluminum-plated film is connected to a thickened substrate, and a low-fold groove is formed in the middle of the surface of the thickened substrate.

[0011] Furthermore, a shaping strip is provided inside the rear side of the thickened substrate, and a shaping strip is provided inside the front side of the thickened substrate.

[0012] Furthermore, both the first and second shaping strips are semi-circular in shape, and the second shaping strip is larger than the first shaping strip.

[0013] This utility model provides a high-barrier, high-strength composite film bag, which has the following beneficial effects: 1. This utility model features a thin nylon layer with excellent flexibility, impact and puncture resistance, and the ability to maintain strength even at low temperatures. It is suitable for scenarios that require repeated folding or loading of sharp objects. The polyethylene layer is resistant to low temperatures and provides a certain degree of toughness support. The transparent mesh acts as a skeleton, providing the membrane bag with tensile strength and increasing its durability. The moisture-absorbing pores are filled with silica gel drying particles for absorbing moisture inside the membrane bag.

[0014] 2. This utility model uses adhesive strips for installing anti-tipping strips. The diameter of the anti-tipping strip is smaller than the diameter of the film bag. When the film bag is sealed, the anti-tipping strip assists in closing the bag opening. When the film bag is tilted, the anti-tipping strip acts as a barrier to prevent it from tipping out. The thickened bottom sheet is used to support the bottom of the film bag. Shaping strip one and shaping strip two provide bottom support to keep the bottom flat and increase the bottom strength. Attached Figure Description

[0015] Figure 1 This is a schematic side view of the overall structure of the high-barrier, high-strength composite film bag of this utility model; Figure 2 This is a schematic diagram of the reinforcement component structure of the high-barrier, high-strength composite film bag of this utility model; Figure 3 This is a top-view structural diagram of the high-barrier, high-strength composite film bag of this utility model.

[0016] In the diagram: 1. Aluminum-coated film; 2. Fixing edge; 3. Fixing hole; 4. Reinforcing component; 401. Adhesive layer; 402. Thin nylon layer; 403. Transparent mesh; 404. Polyethylene layer; 5. Moisture-absorbing membrane; 6. Edge fold groove; 7. Protective component; 701. Adhesive strip; 702. Anti-tipping sheet; 8. Thickened base sheet; 9. Low fold groove; 10. Shaping strip one; 11. Shaping strip two. Detailed Implementation

[0017] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0018] like Figure 1As shown, the high-barrier, high-strength composite film bag includes an aluminized film 1 and a reinforcing component 4. A fixing edge 2 is installed on the side of the aluminized film 1, and a fixing hole 3 is opened on the surface of the fixing edge 2. An edge folding groove 6 is opened on the surface of the aluminized film 1, and the aluminized film 1 and the edge folding groove 6 are integrated structures. A protective component 7 to prevent accidental tipping is provided on the top of the moisture-absorbing membrane 5, and the protective component 7 includes an adhesive strip 701 and an anti-tipping plate 702. The lower end of the adhesive strip 701 is connected to the anti-tipping plate 702. The adhesive strip 701 is used for the installation of the anti-tipping plate 702. The adhesive strip 701 and the anti-tipping plate 702 are integrated structures. The diameter of the anti-tipping plate 702 is smaller than the diameter of the film bag. When the film bag is sealed, the anti-tipping plate 702 assists in closing the opening of the film bag, and when the film bag is tilted, the anti-tipping plate 702 plays a role in blocking and preventing tipping. The moisture-absorbing membrane 5 and the adhesive strip 701 are adhesively connected.

[0019] like Figure 2 As shown, the reinforcement component 4, used to increase barrier properties and strength, is disposed inside the aluminized film 1. The reinforcement component 4 includes an adhesive layer 401, a thin nylon layer 402, a transparent mesh 403, and a polyethylene layer 404. The adhesive layer 401 has a thin nylon layer 402 inside it. The thin nylon layer 402 has excellent flexibility, impact and puncture resistance, and can maintain its strength even at low temperatures, making it suitable for scenarios that require repeated folding or loading of sharp objects. The inner layer of the thin nylon layer 402 has a transparent mesh 403. 03 acts as a skeleton, providing tensile strength to the membrane bag and increasing its durability. The inner side of the transparent mesh 403 is connected to a polyethylene layer 404. The polyethylene layer 404 is resistant to low temperatures and provides a certain degree of toughness support. A moisture-absorbing membrane 5 is provided on the inner side of the polyethylene layer 404. Silica gel drying particles are embedded in the pores of the moisture-absorbing membrane 5 for absorbing moisture inside the membrane bag. The thin nylon layer 402 and the transparent mesh 403 are tightly bonded together, as are the transparent mesh 403 and the polyethylene layer 404.

[0020] like Figure 3 As shown, the lower end of the aluminized film 1 is connected to a thickened bottom sheet 8, which is used to support the bottom of the film bag. A low fold groove 9 is provided in the middle of the surface of the thickened bottom sheet 8. A shaping strip 10 is provided inside the rear side of the thickened bottom sheet 8, and a shaping strip 21 is provided inside the front side of the thickened bottom sheet 8. The shapes of shaping strip 10 and shaping strip 21 are both semi-circular. Shaping strip 10 and shaping strip 21 play the role of bottom support to keep the bottom flat and increase the bottom strength. The size of shaping strip 21 is larger than that of shaping strip 10.

[0021] In summary, this high-barrier, high-strength composite film bag is first based on... Figures 1-3The structure shown in the diagram features an aluminized film 1 with a thin aluminum coating on the outside of a thin nylon layer 402. This design provides both barrier properties and a degree of toughness to the outer surface of the film bag. The thin nylon layer 402 is highly flexible, impact-resistant, puncture-resistant, and maintains its strength even at low temperatures, making it suitable for scenarios requiring repeated folding or loading sharp objects. Meanwhile, the polyethylene layer 404 is low-temperature resistant and provides some toughness support. The transparent mesh 403 acts as a skeleton, providing the film bag with tensile strength and increasing its durability. When dry items are placed inside the composite film bag, silica gel desiccant particles are embedded in the pores of the moisture-absorbing membrane 5 to absorb moisture from inside the film bag. When the film bag is sealed, the anti-tipping strip 702 assists in closing the bag opening and prevents it from tipping over. When the bottom of the film bag is placed flat on a plane, the shaping strips 10 and 11 provide bottom support to maintain flatness and increase the bottom's strength.

[0022] The embodiments of this utility model are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the utility model to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described in order to better illustrate the principles and practical applications of this utility model, and to enable those skilled in the art to understand this utility model and design various embodiments with various modifications suitable for a particular purpose.

Claims

1. A high-barrier, high-strength composite film bag, comprising an aluminized film (1) and a reinforcing component (4), characterized in that, The aluminized film (1) has a fixed edge (2) installed on its side, and a fixing hole (3) is opened on the surface of the fixed edge (2). The reinforcement component (4) for increasing barrier properties and strength is disposed inside the aluminized film (1). The reinforcement component (4) includes an adhesive layer (401), a thin nylon layer (402), a transparent mesh (403), and a polyethylene layer (404). The adhesive layer (401) has a thin nylon layer (402) inside, and a transparent mesh (403) is disposed inside the thin nylon layer (402). The transparent mesh (403) is connected to the inner side of the transparent mesh (403) and a moisture-absorbing membrane (5) is disposed inside the polyethylene layer (404).

2. The high-barrier, high-strength composite film bag according to claim 1, characterized in that, The thin nylon layer (402) and the transparent mesh (403) are tightly bonded together, and the transparent mesh (403) and the polyethylene layer (404) are tightly bonded together.

3. The high-barrier, high-strength composite film bag according to claim 1, characterized in that, The surface of the aluminum-plated film (1) is provided with an edge folding groove (6), and the aluminum-plated film (1) and the edge folding groove (6) are an integrated structure.

4. The high-barrier, high-strength composite film bag according to claim 1, characterized in that, The top of the moisture-absorbing membrane (5) is provided with a protective component (7) to prevent accidental spillage, and the protective component (7) includes an adhesive strip (701) and an anti-tipping sheet (702), with the lower end of the adhesive strip (701) connected to the anti-tipping sheet (702).

5. The high-barrier, high-strength composite film bag according to claim 4, characterized in that, The adhesive strip (701) and the anti-tipping sheet (702) are an integrated structure, and the moisture-absorbing membrane (5) and the adhesive strip (701) are bonded together.

6. The high-barrier, high-strength composite film bag according to claim 1, characterized in that, The lower end of the aluminum-plated film (1) is connected to a thickened base plate (8), and a low fold groove (9) is provided in the middle of the surface of the thickened base plate (8).

7. The high-barrier, high-strength composite film bag according to claim 6, characterized in that, The thickened base plate (8) has a shaping strip (10) inside the rear side and a shaping strip (11) inside the front side.

8. The high-barrier, high-strength composite film bag according to claim 7, characterized in that, The first shaping strip (10) and the second shaping strip (11) are both semi-circular rings, and the size of the second shaping strip (11) is larger than that of the first shaping strip (10).

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