High-strength anti-puncture medicine packaging composite film

Abstract

The utility model discloses a high-strength anti-puncture medicine packaging composite film, which relates to the technical field of composite films and comprises an outer layer and an inner layer, the outer layer and the inner layer are mutually connected to form the composite film, when the composite film is used, the outer layer is positioned on one side far away from a medicine, the inner layer is positioned on one side close to the medicine, and the outer layer consists of a buffer layer and an outer contact layer. The buffer layer is arranged on the upper surface of the base layer, the buffer layer is composed of a reinforcing layer and two structural layers, the two structural layers are fixedly connected to the upper side and the lower side of the reinforcing layer to form a multi-layer composite structure, the reinforcing layer is composed of a stab-resistant layer and separation pieces, and the stab-resistant layer is of a net-shaped structure and is made of aluminum alloy materials. According to the high-strength anti-puncture medicine packaging composite film, the force of a sharp object is absorbed through the separation pieces, at the moment, the two sides of the sharp object can make contact with the two sides of a hexagonal opening in the anti-puncture layer, and due to the fact that the anti-puncture layer is made of aluminum alloy, the anti-puncture layer can prevent the sharp object from further puncturing into the outer layer; therefore, the composite film is prevented from being punctured by sharp edges.

Description

Technical Field

[0001] This utility model relates to the field of composite film technology, specifically to a high-strength puncture-resistant pharmaceutical packaging composite film. Background Technology

[0002] Puncture-resistant pharmaceutical packaging composite film is a composite material specifically designed to prevent punctures or leaks that may occur in pharmaceutical packaging.

[0003] Existing pharmaceutical packaging composite films are prone to damage when punctured by sharp objects, which can contaminate the medicine inside.

[0004] To overcome the aforementioned defects, a prior art Chinese patent (publication number: CN222039907U) discloses a puncture-resistant paper-plastic composite film and packaging bag. The paper-plastic composite film includes a paper layer composed of plant fibers, an ink layer to prevent wetting, a first polyethylene layer, an aluminized polyester film layer to enhance barrier properties, a polyamide layer to improve puncture resistance, an adhesive layer for bonding, and a heat-sealing layer. From top to bottom, the first layer is the ink layer, the second layer is the paper layer, the third layer is the first polyethylene layer, the fourth layer is the aluminized polyester film layer, the fifth layer is the first adhesive layer, the sixth layer is the polyamide layer, the seventh layer is the second adhesive layer, and the eighth layer is the heat-sealing layer. This design prevents the paper from being punctured by objects with sharp ends, such as nuts, and enhances the stability of the packaging bag during use.

[0005] While existing technologies can overcome the shortcomings mentioned above, other problems still exist in their operation: existing composite membranes generally add high-strength polymer materials inside the membrane to achieve internal reinforcement, but when sharp objects come into contact with the composite membrane, they may cut the polymer materials and cause damage, and the composite membrane has poor impact resistance. Utility Model Content

[0006] The purpose of this invention is to provide a high-strength puncture-resistant composite film for pharmaceutical packaging, in order to solve the problems in the prior art where existing composite films generally add high-strength polymer materials inside the film to achieve internal reinforcement, but sharp objects may cut into the polymer materials when they come into contact with the composite film, causing damage, and the composite film has poor impact resistance.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a high-strength puncture-resistant pharmaceutical packaging composite film, comprising an outer layer and an inner layer, wherein the outer layer and the inner layer are interconnected to form a composite film, and when the composite film is in use, the outer layer is located on the side away from the pharmaceutical product, and the inner layer is located on the side closer to the pharmaceutical product;

[0008] The outer layer consists of a buffer layer and an outer contact layer. The buffer layer consists of a reinforcing layer and two structural layers. The two structural layers are fixedly connected to the upper and lower sides of the reinforcing layer to form a multi-layer composite structure. The reinforcing layer consists of an anti-stab layer and a separator. The anti-stab layer is designed with a mesh structure and is made of aluminum alloy. The anti-stab layer has densely distributed hexagonal openings inside, and a separator is fixedly connected inside each opening.

[0009] The structural layer has a multi-layered composite structure, and the internal structure of the structural layer has an impact-resistant structure.

[0010] Preferably, the inner layer is composed of a separator layer and an inner contact layer connected to each other, with the separator layer located between the inner contact layer and the outer layer, and the inner contact layer having through holes arranged in a matrix, while the inner contact layer and the outer contact layer have the same structure.

[0011] Preferably, both the inner contact layer and the structural layer are made of polyethylene, and the separator layer is made of aluminum foil. During the use of the composite film, the inner contact layer comes into contact with the medicine.

[0012] Preferably, the impact-resistant structure includes fixed protrusions evenly distributed inside the structural layer, and the fixed protrusions divide the inside of the structural layer to form evenly distributed fixed protrusions, and the filling groove is set as a hexagonal structure.

[0013] Preferably, the filling grooves inside the structural layer are aligned with the hexagonal openings inside each reinforcing layer, and the interiors of each filling groove are interconnected.

[0014] Preferably, the filling grooves are interconnected to form a complete space, and the space is filled with a non-Newtonian fluid, which is evenly distributed inside the filling groove to form an impact-resistant layer.

[0015] Preferably, the structural layer and the reinforcing layer are fixedly connected to each other, and the structural layer is connected to each other through the reinforcing layer provided inside it, and the reinforcing layer and the two structural layers are connected to each other to form a whole.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] This high-strength puncture-resistant pharmaceutical packaging composite film absorbs the force of sharp objects through the separator. At this time, the two sides of the sharp object will come into contact with the two sides of the hexagonal opening inside the puncture-resistant layer. Since the puncture-resistant layer is made of aluminum alloy, the puncture-resistant layer will prevent the sharp object from penetrating further into the outer layer, thereby preventing the sharp object from puncturing the composite film.

[0018] Furthermore, when the structural layer is impacted, the impact will be transmitted to the interior of the impact-resistant layer. At this time, the instantaneous strength of the impact-resistant layer will increase, thereby improving the overall strength of the composite membrane to resist impact. Moreover, when a sharp object quickly pierces into the interior of the composite membrane, the instantaneous increase in the strength of the impact-resistant layer can reduce the impact force of the sharp object, thereby improving the puncture resistance of the composite membrane. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0020] Figure 2 This is a schematic diagram of the exploded structure of this utility model;

[0021] Figure 3 This is a schematic diagram of the inner contact layer structure of this utility model;

[0022] Figure 4 This is a schematic diagram of the outer contact layer structure of this utility model;

[0023] Figure 5 This is a schematic diagram of the structural layer of this utility model;

[0024] Figure 6 This is a schematic diagram of the filling groove structure of this utility model;

[0025] Figure 7 This is a schematic diagram of the anti-stab layer structure of this utility model.

[0026] In the diagram: 1. Outer layer; 2. Inner layer; 3. Separator layer; 4. Inner contact layer; 5. Through hole; 6. Buffer layer; 7. Outer contact layer; 8. Structural layer; 9. Reinforcing layer; 10. Fixing protrusion; 11. Filling groove; 12. Impact-resistant layer; 13. Puncture-resistant layer; 14. Separator. Detailed Implementation

[0027] 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.

[0028] Example 1: Please refer to Figure 1 - Figure 7 The present invention provides the following technical solution:

[0029] A high-strength puncture-resistant pharmaceutical packaging composite film includes an outer layer 1 and an inner layer 2, which are connected to each other to form a composite film. When the composite film is in use, the outer layer 1 is located on the side away from the drug, and the inner layer 2 is located on the side closer to the drug.

[0030] The outer layer 1 is composed of a buffer layer 6 and an outer contact layer 7. The buffer layer 6 is composed of a reinforcing layer 9 and two structural layers 8. The two structural layers 8 are fixedly connected to the upper and lower sides of the reinforcing layer 9 to form a multi-layer composite structure. The reinforcing layer 9 is composed of an anti-stab layer 13 and a separator 14. The anti-stab layer 13 is a mesh structure and is made of aluminum alloy. The anti-stab layer 13 has densely distributed hexagonal openings inside, and a separator 14 is fixedly connected inside each opening.

[0031] The structural layer 8 has a multi-layer composite structure, and the internal structure of the structural layer 8 has an impact-resistant structure.

[0032] The inner layer 2 is composed of a separator layer 3 and an inner contact layer 4 connected to each other. The separator layer 3 is located between the inner contact layer 4 and the outer layer 1. The inner contact layer 4 has through holes 5 arranged in a matrix. The inner contact layer 4 and the outer contact layer 7 have the same structure.

[0033] Both the inner contact layer 4 and the structural layer 8 are made of polyethylene, and the separator layer 3 is made of aluminum foil. During the use of the composite film, the inner contact layer 4 comes into contact with the medicine.

[0034] During the use of the composite film, the outer layer 1 and the inner layer 2 are wrapped around the outside of the medicine. At this time, the inner layer 2 is located on the side closer to the medicine, and the outer layer 1 is located on the side farther away from the medicine. The outer layer 1 and the inner layer 2 form a sealed package on the outside of the medicine, which is then packaged inside. At this time, the outer layer 1 is located on the outside of the sealed package, and the inner layer 2 is located on the inside of the package. When the composite film is punctured by a sharp object, the sharp object will come into contact with the outer layer 1. At the same time, the process structure layer 8 and the reinforcing layer 9 come into contact with each other. When the sharp object and the reinforcing layer 9 come into contact with each other, the sharp object will penetrate into the interior of the separator 14. The separator 14 absorbs the force of the sharp object. At this time, the two sides of the sharp object will come into contact with the two sides of the hexagonal opening inside the anti-puncture layer 13. Since the anti-puncture layer 13 is made of aluminum alloy, the anti-puncture layer 13 will prevent the sharp object from penetrating further into the interior of the outer layer 1, thereby preventing the sharp object from puncturing the composite film.

[0035] During the use of the composite film, the separator layer 3 inside the inner layer 2 of the packaging will isolate the outer layer 1 and the inner layer 2, preventing sharp objects that pierce the inner layer 1 from bringing contaminants into the packaging. The separator layer 3 is made of aluminum foil, which will undergo an oxidation reaction to form a dense oxide film, increasing the overall height of the inner layer 2.

[0036] Example 2: Based on Example 1, an impact-resistant structure is also disclosed, the specific structure of which is as follows:

[0037] The impact-resistant structure includes fixed protrusions 10 evenly distributed inside the structural layer 8, and the fixed protrusions 10 divide the interior of the structural layer 8 to form evenly distributed fixed protrusions 10, and the filling groove 11 is set as a hexagonal structure.

[0038] The filling grooves 11 inside the structural layer 8 are aligned with the hexagonal openings inside each reinforcing layer 9, and each filling groove 11 is interconnected.

[0039] The filling tanks 11 are interconnected to form a complete space, which is filled with non-Newtonian fluid, and the non-Newtonian fluid is evenly distributed inside the filling tanks 11 to form an impact-resistant layer 12.

[0040] The structural layer 8 and the reinforcing layer 9 are fixedly connected to each other, and the structural layer 8 is connected to each other through the reinforcing layer 9 provided inside it, and the reinforcing layer 9 and the two structural layers 8 are connected to each other to form a whole.

[0041] When the composite film is subjected to external impact during transportation, winding, or use, the external impact will be transmitted through the structural layer 8 to the space between the two structural layers 8. Since the impact-resistant layer 12 is a membrane formed by a non-Newtonian fluid, when the structural layer 8 is impacted, the impact will be transmitted to the interior of the impact-resistant layer 12. At this time, the strength inside the impact-resistant layer 12 will increase momentarily, thereby improving the overall strength of the composite film to resist impact. Furthermore, when a sharp object quickly pierces into the interior of the composite film, the impact force of the sharp object can be reduced by the momentary increase in strength of the impact-resistant layer 12, thereby improving the puncture resistance of the composite film.

[0042] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" or "linked" should be interpreted broadly. For example, it can refer to a fixed connection, a detachable connection, or an integral connection; it can refer to a mechanical connection or an electrical connection; it can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0043] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A high-strength puncture-resistant pharmaceutical packaging composite film, comprising an outer layer (1) and an inner layer (2), wherein the outer layer (1) and the inner layer (2) are connected to each other to form a composite film, and when the composite film is in use, the outer layer (1) is located on the side away from the pharmaceutical product, and the inner layer (2) is located on the side close to the pharmaceutical product; Its features are: The outer layer (1) is composed of a buffer layer (6) and an outer contact layer (7). The buffer layer (6) is composed of a reinforcing layer (9) and two structural layers (8). The two structural layers (8) are fixedly connected to the upper and lower sides of the reinforcing layer (9) to form a multi-layer composite structure. The reinforcing layer (9) is composed of an anti-stab layer (13) and a separator (14). The anti-stab layer (13) is a mesh structure and is made of aluminum alloy. The anti-stab layer (13) has densely distributed hexagonal openings inside, and each opening is fixedly connected to a separator (14). The structural layer (8) has a multi-layer composite structure, and the internal structure of the structural layer (8) has an impact-resistant structure.

2. The high-strength puncture-resistant pharmaceutical packaging composite film according to claim 1, characterized in that: The inner layer (2) is formed by connecting the partition layer (3) and the inner contact layer (4), and the partition layer (3) is located between the inner contact layer (4) and the outer layer (1). The inner contact layer (4) has through holes (5) arranged in a matrix, and the inner contact layer (4) and the outer contact layer (7) have the same structure.

3. The high-strength puncture-resistant pharmaceutical packaging composite film according to claim 2, characterized in that: The inner contact layer (4) and the structural layer (8) are both made of polyethylene, and the separator layer (3) is made of aluminum foil. During the use of the composite film, the inner contact layer (4) comes into contact with the medicine.

4. The high-strength puncture-resistant pharmaceutical packaging composite film according to claim 1, characterized in that: The impact-resistant structure includes fixed protrusions (10) evenly distributed inside the structural layer (8), and the fixed protrusions (10) divide the inside of the structural layer (8) to form evenly distributed fixed protrusions (10), and the filling groove (11) is set as a hexagonal structure.

5. The high-strength puncture-resistant pharmaceutical packaging composite film according to claim 4, characterized in that: The filling grooves (11) inside the structural layer (8) are aligned with the hexagonal openings inside each reinforcing layer (9), and each filling groove (11) is interconnected.

6. The high-strength puncture-resistant pharmaceutical packaging composite film according to claim 5, characterized in that: The filling grooves (11) are interconnected to form a complete space, and the space is filled with non-Newtonian fluid. The non-Newtonian fluid is evenly distributed inside the filling grooves (11) to form an impact-resistant layer (12).

7. The high-strength puncture-resistant pharmaceutical packaging composite film according to claim 6, characterized in that: The structural layer (8) and the reinforcing layer (9) are fixedly connected to each other, and the structural layer (8) is connected to each other through the reinforcing layer (9) provided inside it, and the reinforcing layer (9) and the two structural layers (8) are connected to each other to form a whole.

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