Strong-toughness antibacterial packaging film

Abstract

The utility model relates to an antibacterial packaging film with strong toughness, which belongs to the technical field of packaging films and comprises a middle layer, antibacterial layers are arranged on the upper side and the lower side of the middle layer, hollow cavities are arranged in the antibacterial layers, the hollow cavities are strip-shaped cavities and are uniformly arranged in the antibacterial layers, antibacterial agents and nitrogen are filled in the hollow cavities, a toughness frame is embedded in the middle layer, and the toughness frame is arranged in the middle layer. The covering area of the tough frame changes in the forward direction along with the area of the packaging film, the tough frame comprises tough mechanisms which are movably connected with one another, the antibacterial layer is made of polypropylene, the distribution device is only arranged in the middle layer with the tough mechanisms on the periphery, each tough mechanism comprises a connecting piece, and tough plates extending away are arranged on the two sides of each connecting piece. According to the flexible mechanism, the force applied to the packaging film can be reasonably dispersed, and the flexible mechanism and the distribution mechanism in the flexible mechanism can reasonably extend when being stressed, so that the flexible mechanism can better adapt to deformation after being stressed and better conform to the appearance of a packaging material, and therefore, the flexible mechanism is more convenient to use.

Description

Technical Field

[0001] The utility model relates to the technical field, in particular to an antibacterial packaging film with strong toughness. Background Art

[0002] Packaging film is a commonly used item in people's daily life, especially when packaging goods. The packaging film covers the surface of the goods, which can isolate the goods from the outside world and protect the goods inside to a certain extent. Packaging film with good toughness is conducive to packaging use. During transportation and storage, it may be affected by various external forces. Good toughness can reduce the risk of damage and tearing, ensuring the safety and integrity of the packaged objects. When packaging some organic matter, in order to prolong the cleanliness of the internal items, people often add antibacterial agents to the packaging film to enhance the antibacterial properties of the packaging film.

[0003] For example, the Chinese utility model patent document, with the announcement number CN210654353U, discloses a packaging film with good toughness, including a packaging film, wherein the packaging film is composed of a film wall, a film bottom and a film cover, the lower end of the film wall is fixedly connected to the edge of the upper end of the film bottom, and one side of the film cover is movably connected to the upper end of the film wall through a connecting piece, the film wall, the film bottom and the film cover are all embedded with a grid, the grid is made of plastic rope, a plurality of convex ribs are evenly arranged on the outer periphery of the film wall, and a No. 1 convex pad is arranged in the middle of the upper end surface of the film bottom. Beneficial effects: the packaging film is customized and produced by the manufacturer according to product requirements and can be recycled, thereby reducing waste and white pollution and protecting the environment. The packaging film packages the product through the design of the film wall, the film bottom and the film cover, which makes product packaging convenient and improves packaging efficiency. Convex ribs, a No. 1 convex pad and a No. 2 convex pad are respectively provided to enhance the anti-fall protection effect of the packaging film on the product, and a grid made of plastic rope is embedded in the film wall, the film bottom and the film cover to enhance the overall toughness of the packaging film and make the packaging film durable.

[0004] However, the packaging film recorded in the above-mentioned document uses a grid to enhance the overall toughness of the packaging film, but the structure is relatively independent, and only the grid and other structures are used to independently realize the corresponding functions. The structure is relatively complex, and the function is very limited in use, which is inconvenient to flexibly package different items. Utility Model Content

[0005] In order to overcome the technical defects of the prior art, the utility model provides an antibacterial packaging film with strong toughness, which can achieve better overall performance by utilizing the combination of an intermediate layer and an antibacterial layer. The strength of polypropylene is relatively higher, which can better protect the packaged items. The polypropylene with good ductility can cooperate with the internal toughness frame to better bend. The packaging film with a multi-layer structure has a simple external structure and no complex external structure, which can better adapt to different packaging use environments. The toughness mechanism can reasonably disperse the force applied to the packaging film, and the internal toughness mechanism and distribution mechanism can reasonably extend the packaging film when it is subjected to force, so as to better adapt to the deformation after being subjected to force and better conform to the shape of the packaged object, thereby making it more convenient to use.

[0006] The technical solution adopted by the utility model is: it includes an intermediate layer, the upper and lower sides of the intermediate layer are provided with an antibacterial layer, the antibacterial layer is provided with a hollow cavity, the hollow cavity is a strip-shaped cavity and is evenly arranged inside the antibacterial layer, the hollow cavity is filled with an antibacterial agent and nitrogen, the antibacterial agent preferably uses a food-grade antibacterial agent, and the application of packaging film in combination with antibacterial agent is relatively common and a commonly used treatment method. Nitrogen can make the packaging film more stable and avoid reaction between gas and packaging film or antibacterial agent. A tough frame is embedded in the intermediate layer, and the coverage area of ​​the tough frame changes positively with the area of ​​the packaging film. The tough frame includes tough mechanisms that are movably connected to each other, and the tough mechanism can make corresponding deformations when the packaging film is subjected to force, and improve the overall stability of the packaging film through the connection between components during the deformation process. It also includes a distribution device movably connected to the tough mechanism, and the distribution device can further evenly distribute the force inside the packaging film to avoid the situation where the packaging film and the tough mechanism are partially subjected to force concentration.

[0007] Preferably, in order to better improve the ductility and durability of the packaging film, the middle layer is made of polyethylene and the antibacterial layer is made of polypropylene. The middle layer made of polyethylene can provide relatively better ductility, while the antibacterial layer made of polypropylene can provide better wear resistance.

[0008] Preferably, in order to avoid unnecessary waste of component structures, the distribution device is only arranged inside the middle layer surrounded by the toughness mechanism, that is, no distribution device is arranged beside the edge of the packaging film.

[0009] Preferably, in order to better enhance the ductility of the packaging film, the toughness mechanism includes a connecting piece, and both sides of the connecting piece are provided with toughness plates extending far away, and the toughness plates are corrugated plates.

[0010] Preferably, in order to enable the packaging film to deform appropriately while enhancing the overall toughness of the packaging film, a cross piece is provided on the outer wall of the tough plate, the cross piece and the tough plate are fixed, a tension rod is provided on the cross piece, a first end of the tension rod is connected to the cross piece, and a second end of the tension rod passes through the wavy part on the tough plate, and the tough plate is provided with a through hole allowing the tension rod to pass through.

[0011] Preferably, in order to facilitate the formation of a continuous and uninterrupted tough frame, the second end of the tension rod is provided with a node portion, and the toughness mechanisms are directly connected through the node portion.

[0012] Preferably, in order to make the middle ring easier to deform after being subjected to force, the distribution device includes a branch piece and an middle ring, the middle ring is provided with a force notch, one end of the branch piece is installed on the outer wall of the middle ring, and the other end of the branch piece is fixed to the cross piece.

[0013] Preferably, in order to increase the mobility of the branch piece, a movable section is provided at one end of the branch piece close to the intermediate ring, and a clamping joint is provided at the end of the movable section, and a movable groove allowing the movable section to pass through is provided on the outer wall of the intermediate ring, and a gap is left between the inner wall of the movable groove and the movable section to facilitate the movement of the branch piece, and the branch piece is clamped to each other with the intermediate ring through the clamping joint.

[0014] The beneficial effects of the utility model are as follows: the multi-layer structure formed by the combination of the intermediate layer and the antibacterial layer can achieve better overall performance, the strength of the polypropylene is relatively higher, and the packaged articles can be better protected, and the polypropylene with better ductility can cooperate with the internal toughness frame to be better bent; the multi-layer structure can make the external structure of the packaging film simple, without a complex external structure, and can better adapt to different packaging use environments; the toughness mechanism can reasonably disperse the force on the packaging film, and reasonably extend it when subjected to force through the internal toughness mechanism and distribution mechanism, better adapt to the deformation after the force is applied, better conform to the shape of the packaged article, and thus more convenient to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0016] Figure 2 for Figure 2 Schematic diagram of the enlarged structure at point A in the middle.

[0017] Figure 3 It is a schematic diagram of the toughness mechanism structure of the utility model.

[0018] Figure 4 for Figure 3 Schematic diagram of the enlarged structure at point B in the middle.

[0019] Figure 5 It is a structural schematic diagram of the node part of the utility model.

[0020] Figure 6 The utility model is a structural schematic diagram of the distribution device.

[0021] Figure 7 This is another structural schematic diagram of the distribution device of the utility model.

[0022] Figure 8 for Figure 7 Schematic diagram of the enlarged structure at point C in the middle.

[0023] Explanation of the accompanying drawings: In the figure: 1, middle layer; 2, antibacterial layer; 201, hollow cavity; 3, tough frame; 4, tough mechanism; 401, connecting part; 402, tough plate; 403, horizontal part; 404, tension rod; 5, distribution device; 501, branch part; 502, intermediate ring; 503, movable section; 504, card joint; 6, node part. DETAILED DESCRIPTION

[0024] The utility model is further described below in conjunction with the accompanying drawings:

[0025] like Figure 1-Figure 8 As shown, this embodiment provides a tough antibacterial packaging film, including an intermediate layer 1, an antibacterial layer 2 is provided on the upper and lower sides of the intermediate layer 1, a hollow cavity 201 is provided in the antibacterial layer 2, the hollow cavity 201 is a strip-shaped cavity and is evenly arranged inside the antibacterial layer 2, and the hollow cavity 201 is filled with an antibacterial agent and nitrogen. The antibacterial agent is preferably a food-grade antibacterial agent. The application of the packaging film combined with the antibacterial agent is a common treatment method. Nitrogen can make the packaging film more stable and avoid the reaction between the gas and the packaging film or the antibacterial agent. The intermediate layer 1 is embedded with A tough frame 3 is provided, and the middle layer 1 is embedded with the tough frame 3. The coverage area of ​​the tough frame 3 changes positively with the area of ​​the packaging film. The tough frame 3 includes tough mechanisms 4 that are movably connected to each other. The tough mechanisms 4 can make corresponding deformations when the packaging film is subjected to force, and the overall stability of the packaging film is improved through the connection between the components during the deformation process. The tough frame 3 also includes a distribution device 5 movably connected to the tough mechanism 4. The distribution device 5 can further evenly distribute the force inside the packaging film to avoid the situation where the packaging film and the tough mechanism 4 are subjected to partial force concentration.

[0026] The material of the middle layer 1 is polyethylene, and the material of the antibacterial layer 2 is polypropylene. The middle layer 1 made of polyethylene can provide relatively better ductility, while the antibacterial layer 2 made of polypropylene can provide better wear resistance, which can better improve the ductility and durability of the packaging film.

[0027] The distribution device 5 is only arranged inside the middle layer 1 surrounded by the toughness mechanism 4, that is, the distribution device 5 is not arranged next to the edge of the packaging film, so as to avoid unnecessary waste of the component structure. The toughness mechanism 4 includes a connecting member 401, and both sides of the connecting member 401 are provided with tough plates 402 extending far away. The tough plates 402 are corrugated plates, which can better enhance the ductility of the packaging film.

[0028] A cross piece 403 is provided on the outer wall of the tough plate 402, and the cross piece 403 and the tough plate 402 are fixed to each other. A tension rod 404 is provided on the cross piece 403, and the first end of the tension rod 404 is connected to the cross piece 403, and the second end of the tension rod 404 passes through the wavy part on the tough plate 402. The tough plate 402 is provided with a through hole allowing the tension rod 404 to pass through, so that the packaging film can be properly deformed while enhancing the overall toughness of the packaging film. A node portion 6 is provided at the second end of the tension rod 404, and the tough mechanisms 4 are directly connected through the node portion 6, so that a continuous and uninterrupted tough frame 3 can be formed.

[0029] The distribution device 5 includes a branch piece 501 and an intermediate ring 502. The intermediate ring 502 is provided with a stress-bearing notch. One end of the branch piece 501 is installed on the outer wall of the intermediate ring 502, and the other end of the branch piece 501 is fixed to the cross piece 403, so that the intermediate ring 502 can be more easily deformed after being subjected to stress. An active section 503 is provided at one end of the branch piece 501 close to the intermediate ring 502, and a clamping joint 504 is provided at the end of the active section 503. A movable groove allowing the active section 503 to pass through is provided on the outer wall of the intermediate ring 502, and a gap is left between the inner wall of the movable groove and the active section 503 to facilitate the movement of the branch piece 501. The branch piece 501 is clamped with the intermediate ring 502 through the clamping joint 504, so that the mobility of the branch piece 501 can be increased.

[0030] The multilayer structure formed by the combination of the intermediate layer 1 and the antibacterial layer 2 of the utility model can achieve better overall performance. The strength of polypropylene is relatively higher, which can better protect the packaged items. The polypropylene with better ductility can cooperate with the internal toughness frame 3 to better bend; the multilayer structure can make the external structure of the packaging film simple, without complex external structure, and can better adapt to different packaging use environments; the toughness mechanism 4 can reasonably disperse the force on the packaging film, and through the internal toughness mechanism 4 and the distribution mechanism, it can reasonably extend when subjected to force, better adapt to the deformation after the force is applied, better conform to the shape of the package, and thus more convenient to use.

[0031] When in use, the packaging film is deformed by external force. Since the tough plate 402 is arranged inside the middle layer 1, when part of the middle layer 1 is subjected to force, the tough plate 402 can follow the deformation. When the force situation is further aggravated, the tough plate 402 is pulled and moves together with the tension rod 404. During the movement, the tension rod 404 can transfer the force to the cross-piece 403, and the corresponding cross-piece 403 can drive another tough plate 402 to move after being pulled. Therefore, when the packaging film is pulled, the tough mechanism 4 is the main force-bearing object, and the wavy tough plate 402 can contact with more middle layers 1, so as to better transmit the force. Since the packaging film is subjected to different force directions, the distribution device 5 set can better disperse the force, and can also play a role in enhancing the overall performance of the packaging film.

[0032] The utility model improves the overall toughness of the packaging film by means of the toughness frame 3 arranged in the middle layer 1, and the corresponding toughness mechanism 4 can play a major role in bearing force, and the distribution device 5 can further make the forces in different directions more uniform.

[0033] The above shows and describes the basic principles, main features and advantages of the invention. Those skilled in the art should understand that the invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the invention. Without departing from the spirit and scope of the invention, the invention may have various changes and improvements, which shall fall within the scope of the invention to be protected. The scope of protection of the invention shall be defined by the attached claims and their equivalents.

Claims

1. A tough antibacterial packaging film, comprising an intermediate layer (1), wherein the upper and lower sides of the intermediate layer (1) are both provided with antibacterial layers (2), characterized in that: The antibacterial layer (2) is provided with a hollow cavity (201), the hollow cavity (201) is a strip-shaped cavity and is evenly arranged inside the antibacterial layer (2), the hollow cavity (201) is filled with an antibacterial agent and nitrogen, the middle layer (1) is embedded with a tough frame (3), the coverage area of ​​the tough frame (3) changes positively with the area of ​​the packaging film, the tough frame (3) includes tough mechanisms (4) movably connected to each other, and also includes a distribution device (5) movably connected to the tough mechanism (4).

2. The tough antibacterial packaging film according to claim 1, characterized in that: The material of the intermediate layer (1) is polyethylene, and the material of the antibacterial layer (2) is polypropylene.

3. The tough antibacterial packaging film according to claim 1, characterized in that: The distribution device (5) is only arranged inside the intermediate layer (1) which is surrounded by the toughness mechanism (4).

4. The tough antibacterial packaging film according to claim 1, characterized in that: The toughness mechanism (4) comprises a connecting piece (401), and toughness plates (402) extending far away are provided on both sides of the connecting piece (401), and the toughness plates (402) are wavy plates.

5. The tough antibacterial packaging film according to claim 4, characterized in that: A cross piece (403) is provided on the outer wall of the flexible plate (402), the cross piece (403) and the flexible plate (402) are fixed to each other, a tension rod (404) is provided on the cross piece (403), a first end of the tension rod (404) is connected to the cross piece (403), a second end of the tension rod (404) passes through the wavy part on the flexible plate (402), and a through hole is provided on the flexible plate (402) to allow the tension rod (404) to pass through.

6. The tough antibacterial packaging film according to claim 5, characterized in that: The second end of the tension rod (404) is provided with a node portion (6), and the toughness mechanism (4) is directly connected via the node portion (6).

7. The tough antibacterial packaging film according to claim 6, characterized in that: The distribution device (5) comprises a branch member (501) and an intermediate ring (502), wherein the intermediate ring (502) is provided with a force-bearing notch, one end of the branch member (501) is mounted on the outer wall of the intermediate ring (502), and the other end of the branch member (501) is fixed to the transverse member (403).

8. The tough antibacterial packaging film according to claim 7, characterized in that: An end of the branch piece (501) close to the middle ring (502) is provided with a movable section (503), and a clamping joint (504) is provided at the end of the movable section (503); an outer wall of the middle ring (502) is provided with a movable groove allowing the movable section (503) to pass through; the branch piece (501) and the middle ring (502) are clamped together via the clamping joint (504).

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