Medicinal packaging composite film with good sealing performance

Abstract

The utility model discloses a medicinal packaging composite film with good sealing performance, which relates to the technical field of packaging composite films and comprises two groups of composite films. Each composite film comprises an epoxy resin layer and an aluminum foil layer, the aluminum foil layer is arranged on the side edge of the epoxy resin layer, and the side, away from the epoxy resin layer, of the aluminum foil layer is connected with a thermoplastic adhesive layer. The two sets of composite films are connected through the connecting sealing ring, the connecting sealing ring adheres to the composite films through the colloid, when packaging is needed, the rotating ring and the first rotating rod are made to rotate by pulling the connecting rod and the elasticity of the elastic rod, then the second rotating rod is driven to rotate in the bearing, and therefore the sticky plate is rotated to a proper position; the position of the composite film is fixed through the sticky plate, the sticky plate can be accurately positioned through rotation of the rotating ring and the first rotating rod, the composite film is fixed to the proper position, the medicine is completely wrapped by the composite film, and sealing is facilitated.

Description

Technical Field

[0001] This utility model relates to the field of packaging composite film technology, specifically to a pharmaceutical packaging composite film with good sealing performance. Background Technology

[0002] Composite films, through their multi-layered structure and material properties, provide protection for pharmaceuticals, preventing them from being affected by the external environment. They can effectively prevent pharmaceuticals from oxidizing, absorbing moisture, or deteriorating due to light, thereby extending the shelf life of pharmaceuticals. By preventing external contaminants from entering, they help maintain the purity of pharmaceuticals, ensuring the safety and effectiveness of their use by patients. Composite film packaging is lightweight, easy to carry, and can maintain a sealed state during transportation and storage, reducing the risk of damage and contamination of pharmaceuticals during logistics.

[0003] Chinese Patent Publication No. CN216334039U, entitled "An Environmentally Friendly Pharmaceutical Packaging Composite Film," comprises a nanocellulose film body, a waterproof film, and a high-temperature resistant coating. The waterproof film is adhered to the upper surface of the nanocellulose film body, and the high-temperature resistant coating is sprayed onto the upper surface of the waterproof film. The film winding assembly includes a winding roller, a slot, a clamping strip, a T-shaped rod, a pull ring, rubber pad A, rubber pad B, a base, and a handle. This environmentally friendly pharmaceutical packaging composite film is secured by placing the film into the slot, then holding the pull ring to insert the T-shaped rod into the corresponding T-slot on the right side of the slot. The film is then clamped by the rubber pad A adhered to the right side of the clamping strip and the rubber pad B adhered to the left side of the T-shaped rod, preventing scratches on the film surface.

[0004] The shortcomings of the above solution are: although the solution can clamp the film, it only considers clamping the film and cannot secure the packaged medicine when the film wraps the medicine. This may increase the risk of packaging damage and cannot ensure that the medicine is completely wrapped during the wrapping process. Utility Model Content

[0005] The purpose of this invention is to provide a pharmaceutical packaging composite film with good sealing performance, so as to solve the technical problem in the prior art that the film cannot fix the packaged medicine when wrapping the medicine, which may increase the risk of packaging damage and cannot ensure that the medicine is completely wrapped during the wrapping process.

[0006] The technical problem to be solved by this utility model can be achieved through the following technical solution:

[0007] A pharmaceutical packaging composite film with good sealing properties includes two sets of composite films;

[0008] Both sets of composite films include an epoxy resin layer and an aluminum foil layer, with the aluminum foil layer disposed on the side of the epoxy resin layer and a thermoplastic adhesive layer connected to the side of the aluminum foil layer away from the epoxy resin layer.

[0009] The two sets of composite films are connected by a connecting seal ring. Two sets of pulling mechanisms are connected to the connecting seal ring. Each set of pulling mechanisms includes a rotating rod. Bearings are connected to both sides of the connecting seal ring. A rotating shaft is rotatably connected to each bearing. A rotating rod is connected to the end of the rotating shaft away from the bearing. The rotating rod is connected between the two rotating rods. A fixing mechanism is connected to the rotating rod.

[0010] As a further embodiment of this invention: a polyethylene layer is attached to the side of the thermoplastic adhesive layer away from the aluminum foil layer.

[0011] As a further embodiment of this invention: an epoxy resin adhesive layer is attached to the side of the polyethylene layer away from the thermoplastic adhesive layer.

[0012] As a further embodiment of this utility model: the outer periphery of the two sets of composite membranes is connected by an outer membrane.

[0013] As a further embodiment of this invention, the outer membrane is a polyvinyl chloride membrane.

[0014] As a further embodiment of this utility model, the ends of the two sets of composite films are connected with side plates.

[0015] As a further embodiment of this invention: a heat-sealing strip is connected to the end of the composite film away from the side plate.

[0016] As a further embodiment of this invention, the connecting sealing ring and the composite film are bonded together by an adhesive.

[0017] As a further embodiment of this utility model: the fixing mechanism includes an adhesive plate, a rotating ring is connected to one of the rotating rods, a connecting rod is connected to the rotating ring, and the adhesive plate is connected to the end of the connecting rod away from the rotating ring.

[0018] As a further embodiment of this invention, the connecting rod is an elastic rod.

[0019] The beneficial effects of this utility model are:

[0020] 1. In this utility model, the two sets of composite films are connected by a connecting sealing ring. The connecting sealing ring is adhered to the composite film by an adhesive. When packaging is required, by pulling the connecting rod, the elasticity of the elastic rod causes the rotating ring and rotating rod one to rotate, thereby driving rotating rod two to rotate within the bearing, thus rotating the adhesive plate to the appropriate position. The position of the composite film is fixed by the adhesive plate. The rotation of the rotating ring and rotating rod one allows the adhesive plate to be precisely positioned, fixing the composite film in the appropriate position and completely wrapping the medicine with the composite film for easy sealing.

[0021] 2. The epoxy resin layer of this utility model is commonly used as an adhesive, possessing excellent bonding performance and chemical resistance. The aluminum foil layer provides excellent barrier properties, effectively blocking oxygen, moisture, and light, thereby protecting the medicine inside the packaging. The thermoplastic adhesive layer, as an intermediate layer, has good heat-sealing performance, melting and bonding the two layers when heated, while maintaining good bonding strength and temperature resistance. The epoxy resin adhesive layer is typically used to bond the polyethylene layer and the epoxy resin layer, enhancing the bonding strength between the polyethylene layer and the epoxy resin layer, and improving the durability and reliability of the entire composite film. Attached Figure Description

[0022] The present invention will be further described below with reference to the accompanying drawings.

[0023] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0024] Figure 2 yes Figure 1 Enlarged structural diagram at point A in the middle;

[0025] Figure 3 This is a cross-sectional view of the composite membrane in this utility model.

[0026] In the diagram: 1. Outer membrane; 2. Side plate; 3. Composite membrane; 4. Heat sealing strip; 5. Rotating rod one; 6. Rotating ring; 7. Connecting rod; 8. Adhesive plate; 9. Bearing; 10. Rotating rod two; 11. Shaft; 12. Epoxy resin layer; 13. Aluminum foil layer; 14. Thermoplastic adhesive layer; 15. Polyethylene layer; 16. Epoxy resin adhesive layer; 17. Connecting sealing ring. 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 skilled in the art without creative effort are within the protection scope of the present utility model.

[0028] like Figures 1-3As shown, a pharmaceutical packaging composite film with good sealing properties includes two sets of composite films 3. Each set of composite films 3 includes an epoxy resin layer 12 and an aluminum foil layer 13. The aluminum foil layer 13 is disposed on the side of the epoxy resin layer 12. A thermoplastic adhesive layer 14 is connected to the side of the aluminum foil layer 13 away from the epoxy resin layer 12. A polyethylene layer 15 is connected to the side of the thermoplastic adhesive layer 14 away from the aluminum foil layer 13. An epoxy resin adhesive layer 16 is connected to the side of the polyethylene layer 15 away from the thermoplastic adhesive layer 14. The epoxy resin layer 12 can effectively bond the aluminum foil layer 13. The barrier properties of the aluminum foil layer 13 help extend the shelf life of the medicine, prevent the medicine from oxidizing, absorbing moisture, or being affected by light and thus becoming ineffective, provide good mechanical strength and chemical stability, and prevent the medicine from contacting the external environment.

[0029] Two sets of composite films 3 are connected to an outer film 1 on their outer periphery. The outer film 1 is a polyvinyl chloride film. The ends of the two sets of composite films 3 are connected to a side plate 2. The end of the composite film 3 away from the side plate 2 is connected to a heat sealing strip 4. The two sets of composite films 3 are connected together by a connecting sealing ring 17. The connecting sealing ring 17 is bonded to the composite film 3 by an adhesive. Two sets of pulling mechanisms are connected to the connecting sealing ring 17. Each set of pulling mechanisms includes a rotating rod 5. Bearings 9 are connected to both sides of the connecting sealing ring 17. A rotating shaft 11 is rotatably connected to each bearing 9. A rotating rod 10 is connected to the end of the rotating shaft 11 away from the bearing 9. The rotating rod 5 is connected between the two rotating rods 10. A fixing mechanism is connected to the rotating rod 5. The fixing mechanism includes an adhesive plate 8. A rotating ring 6 is connected to the rotating rod 5. A connecting rod 7 is connected to the rotating ring 6. The connecting rod 7 is an elastic rod. The adhesive plate 8 is connected to the end of the connecting rod 7 away from the rotating ring 6.

[0030] The working principle of this invention: This design provides excellent sealing and protection for pharmaceuticals from external environmental influences. The composite film 3 includes an epoxy resin layer 12 and an aluminum foil layer 13. The aluminum foil layer 13 is located on the side of the epoxy resin layer 12, and a thermoplastic adhesive layer 14 is connected to the side away from the epoxy resin layer 12. A polyethylene layer 15 is connected to the other side of the thermoplastic adhesive layer 14, and an epoxy resin adhesive layer 16 is connected to the other side of the polyethylene layer 15. The epoxy resin layer 12 is commonly used as an adhesive, possessing good bonding properties and chemical resistance. The aluminum foil layer 13 provides excellent barrier properties, effectively blocking oxygen, moisture, and light, thereby protecting the pharmaceuticals inside the packaging. The thermoplastic adhesive layer... 14, as the intermediate layer, has good heat-sealing properties. It can melt and bond the two layers of materials when heated, while maintaining good adhesive strength and temperature resistance. The polyethylene layer 15 is a commonly used plastic material with good flexibility and chemical resistance. The epoxy resin adhesive layer 16 is usually used to bond the polyethylene layer 15 and the epoxy resin layer 12, enhancing the adhesive strength between the polyethylene layer 15 and the epoxy resin layer 12, and improving the durability and reliability of the entire composite film 3. The outer periphery of the two sets of composite films 3 is connected by a polyvinyl chloride film, which serves as the outer film 1, providing additional protection and structural strength. The two sets of composite films 3 are connected by a connecting seal ring 17, which is adhered to the composite film 3 by an adhesive.

[0031] Rotating rod 2 10 is connected to rotating shaft 11 via bearing 9. Rotating ring 6 and connecting rod 7 (elastic rod) are connected to rotating rod 1 5 to provide pulling force. When packaging is required, by pulling connecting rod 7, the elasticity of the elastic rod causes rotating ring 6 and rotating rod 1 5 to rotate, thereby driving rotating rod 2 10 to rotate within bearing 9, thereby rotating adhesive plate 8 to a suitable position, and fixing the position of composite film 3 through adhesive plate 8.

[0032] The above description details one embodiment of the present utility model, but it is merely a preferred embodiment and should not be construed as limiting the scope of the present utility model. All equivalent variations and improvements made within the scope of the present utility model application should still fall within the patent coverage of the present utility model.

Claims

1. A pharmaceutical packaging composite film with good sealing properties, comprising two sets of composite films (3); characterized in that: Both sets of composite films (3) include an epoxy resin layer (12) and an aluminum foil layer (13). The aluminum foil layer (13) is disposed on the side of the epoxy resin layer (12), and a thermoplastic adhesive layer (14) is connected to the side of the aluminum foil layer (13) away from the epoxy resin layer (12). The two sets of composite membranes (3) are connected by a connecting seal (17). The connecting seal (17) is connected to two sets of pulling mechanisms. Each set of pulling mechanisms includes a rotating rod (5). Bearings (9) are connected to both sides of the connecting seal (17). A rotating shaft (11) is rotatably connected to each bearing (9). A rotating rod (2) (10) is connected to the end of the rotating shaft (11) away from the bearing (9). The rotating rod (5) is connected between the two rotating rods (2) (10). A fixing mechanism is connected to the rotating rod (5).

2. The pharmaceutical packaging composite film with good sealing properties according to claim 1, characterized in that, The thermoplastic adhesive layer (14) is connected to a polyethylene layer (15) on the side away from the aluminum foil layer (13).

3. The pharmaceutical packaging composite film with good sealing properties according to claim 2, characterized in that, An epoxy resin adhesive layer (16) is attached to the side of the polyethylene layer (15) away from the thermoplastic adhesive layer (14).

4. The pharmaceutical packaging composite film with good sealing properties according to claim 1, characterized in that, The outer periphery of the two sets of composite membranes (3) is connected to an outer membrane (1).

5. A pharmaceutical packaging composite film with good sealing properties according to claim 4, characterized in that, The outer membrane (1) is a polyvinyl chloride membrane.

6. The pharmaceutical packaging composite film with good sealing properties according to claim 1, characterized in that, The ends of the two sets of composite membranes (3) are connected to side plates (2).

7. The pharmaceutical packaging composite film with good sealing properties according to claim 1, characterized in that, The composite film (3) is connected to a heat-sealing strip (4) at the end away from the side plate (2).

8. The pharmaceutical packaging composite film with good sealing properties according to claim 1, characterized in that, The connecting sealing ring (17) and the composite film (3) are bonded together by an adhesive.

9. The pharmaceutical packaging composite film with good sealing properties according to claim 1, characterized in that, The fixing mechanism includes a sticking plate (8), a rotating ring (6) is connected to the rotating rod (5), a connecting rod (7) is connected to the rotating ring (6), and the sticking plate (8) is connected to the end of the connecting rod (7) away from the rotating ring (6).

10. A pharmaceutical packaging composite film with good sealing properties according to claim 9, characterized in that, The connecting rod (7) is an elastic rod.

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