Tear-resistant drug high-strength aluminized composite film

Abstract

The utility model discloses a tear-resistant high-strength aluminum-plated composite film for drugs, which belongs to the technical field of composite films for drug packaging and comprises an organic composite coating on the outermost layer of drug packaging, an aluminum-plated polyester layer is arranged on the inner side of the organic composite coating, and an aluminum-plated polyester layer is arranged on the outer side of the aluminum-plated polyester layer. A nano filler layer group for preventing the composite film from being torn is arranged on the inner side of the aluminized polyester layer; a protective layer group for increasing the air permeability of the composite film is arranged on the inner side of the nano filler layer group, a super-hydrophobic film layer is arranged on the inner side of the protective layer group, and a silane film layer is arranged on the inner layer of the super-hydrophobic film layer; the nano filler layer group forms a layered structure, the polarization intensity of the composite film can be improved, the tear resistance of the composite film is improved, the protective layer group is arranged in the composite film, and in a high-temperature and high-humidity environment, the protective layer group can improve the air permeability of the composite film and reduce the water content of the composite film, so that the service life of the composite film is prolonged. And the firmness of connection between the film layers in the composite film is kept, so that the situation that the composite film is torn during application is further avoided.

Description

Technical Field

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

[0002] Galvanized composite film is a protective film formed on the surface of galvanized layer through chemical treatment or physical methods. It mainly improves the corrosion resistance of galvanized materials. Aluminized composite film is usually used in pharmaceutical packaging to enhance the protective performance of the packaging structure, thereby improving the quality of pharmaceutical packaging.

[0003] For example, the patent with announcement number CN221737278U describes a pharmaceutical packaging composite film with antibacterial function. The composite film body includes an outer printed layer, an adhesive fixedly bonded to the upper end of the outer printed layer, an outer protective layer fixedly bonded to the upper end of the outer printed layer through the adhesive, an adhesive fixedly bonded to the lower end of the outer printed layer, a barrier protective layer fixedly bonded to the lower end of the outer printed layer through the adhesive, an adhesive fixedly bonded to the lower end of the barrier protective layer, an antibacterial protective layer fixedly bonded to the lower end of the barrier protective layer through the adhesive, an adhesive fixedly bonded to the lower end of the antibacterial protective layer, and an adhesive inner layer fixedly bonded to the lower end of the antibacterial protective layer through the adhesive.

[0004] For example, a pharmaceutical packaging composite film, as disclosed in patent CN206203043U, includes, from the outside to the inside, a polyester film layer, an outer polyurethane adhesive layer, a barrier layer, an inner polyurethane adhesive layer, an outer polyethylene resin layer, an inner polyethylene resin layer, and a polyolefin layer. The outer polyurethane adhesive layer is bonded between the polyester film layer and the barrier layer, and the inner polyurethane adhesive layer is bonded between the barrier layer and the outer polyethylene resin layer. The outer polyethylene resin layer, the inner polyethylene resin layer, and the polyolefin layer are integrally formed.

[0005] The aforementioned patents improve the protective and moisture-proof properties of packaging through composite films. However, some composite films require additional antibacterial and moisture-proof layers. Excessive use of materials and film layers can affect the strength of the direct bonding between materials, leading to tearing of the composite film under external force or high temperature and humidity conditions. This affects the quality of the composite film in pharmaceutical packaging. In addition, the adhesion between the internal film layers of some composite films decreases under high humidity conditions, thus affecting the tear resistance of the composite film application.

[0006] To address the aforementioned issues, there is an urgent need for innovative designs based on the existing aluminized composite film. Utility Model Content

[0007] The purpose of this invention is to provide a high-strength aluminum-plated composite film for tear-resistant pharmaceuticals, in order to solve the problem mentioned in the background art that some composite films require additional antibacterial and moisture-proof layers for use, and the excessive amount of materials and film layers prepared can affect the strong bond between the materials, thus causing the composite film to tear under external force or high temperature and high humidity conditions.

[0008] To achieve the above objectives, this utility model provides the following technical solution: a tear-resistant, high-strength aluminized composite film for pharmaceuticals, comprising an outermost organic composite coating for pharmaceutical packaging, an aluminized polyester layer on the inner side of the organic composite coating, and a nano-filler layer group on the inner side of the aluminized polyester layer to prevent tearing of the composite film; a protective layer group to increase the air permeability of the composite film on the inner side of the nano-filler layer group, and a superhydrophobic film layer on the inner side of the protective layer group, and a silane film layer on the inner layer of the superhydrophobic film layer.

[0009] Preferably, the nanofiller layer group includes a three-dimensional filler layer, a two-dimensional filler layer and an adhesive layer; the three-dimensional filler layer is located in the middle of the nanofiller layer group, and two-dimensional filler layers are provided on both the upper and lower sides of the three-dimensional filler layer, and an adhesive layer is provided on the outer side of the two-dimensional filler layer.

[0010] Preferably, the three-dimensional packing layer includes central packing balls and lateral packing balls; multiple central packing balls are arranged in a matrix, and adjacent central packing balls are connected to each other through main connecting columns; multiple secondary connecting columns are obliquely connected to the central packing balls, and the secondary connecting columns are fixedly connected to the lateral packing balls.

[0011] Preferably, the two-dimensional packing layer includes reinforcing packing balls and fixing columns; adjacent reinforcing packing balls are connected to each other by fixing columns, and the combination of reinforcing packing balls and fixing columns forms an equilateral hexagonal structure.

[0012] Preferably, the three-dimensional filler layer and the two-dimensional filler layer are interlocked to enhance the tear resistance of the nanofiller layer assembly.

[0013] Preferably, the protective layer group includes multiple horizontally arranged protective layers, and triangular grooves are provided on both sides of the protective layers; adjacent protective layers are connected by the triangular grooves provided on the sides.

[0014] Preferably, the protective layer has vent holes spaced at equal intervals.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] This high-strength aluminized composite film for tear-resistant pharmaceuticals is composed of an organic composite coating, an aluminized polyester layer, a nanofiller layer, a protective layer, a superhydrophobic film layer, and a silane film layer. The composite film forms a physical barrier and has a strong anti-corrosion effect.

[0017] Furthermore, the composite membrane contains a nanofiller layer group, which includes a three-dimensional filler layer and a two-dimensional filler layer that are interlocked. The nanofillers have strong interconnectivity and form a layered structure, which induces interfacial polarization and improves the polarization intensity of the composite membrane.

[0018] The central and lateral filler balls of the three-dimensional filler layer are staggered with the reinforcing filler balls of the two-dimensional filler layer. This combination arrangement can effectively improve the tear resistance of the composite membrane.

[0019] Furthermore, the composite membrane is provided with a protective layer group, which is composed of multiple protective layers. Adjacent protective layers are connected by triangular grooves. The triangular grooves can help the composite membrane to be hydrophobic and breathable, and also prevent the composite membrane from being easily torn.

[0020] The protective layer has vent holes at equal intervals. The orderly arrangement of vent holes can accelerate the evaporation of moisture from the composite membrane, keep the various membrane layers of the composite membrane firmly connected, and further prevent the composite membrane from being torn during application. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the three-dimensional structure of the nanofiller layer assembly of this utility model;

[0022] Figure 2 This is a schematic diagram of the three-dimensional filler layer structure of this utility model;

[0023] Figure 3 This is a three-dimensional structural diagram of the central packing ball of this utility model;

[0024] Figure 4 This is a schematic diagram of the three-dimensional structure of the reinforcing filler ball of this utility model;

[0025] Figure 5 This is a three-dimensional structural diagram of the protective layer of this utility model;

[0026] Figure 6 This is a schematic diagram of the three-dimensional structure of the triangular groove of this utility model.

[0027] In the diagram: 1. Organic composite coating; 2. Aluminized polyester layer; 3. Nanofiller layer group; 31. Three-dimensional filler layer; 311. Central filler ball; 312. Main connecting column; 313. Secondary connecting column; 314. Lateral filler ball; 32. Two-dimensional filler layer; 321. Reinforcing filler ball; 322. Fixing column; 33. Adhesive layer; 4. Protective layer group; 41. Protective layer; 42. Triangular groove; 43. Ventilation hole; 5. Superhydrophobic film layer; 6. Silane film layer. Detailed Implementation

[0028] 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.

[0029] Example 1: Please refer to Figures 1-6 The present invention provides the following technical solution:

[0030] The tear-resistant, high-strength aluminized composite film for pharmaceuticals includes an outermost organic composite coating 1, an aluminized polyester layer 2 on the inner side of the organic composite coating 1, and a nano-filler layer 3 on the inner side of the aluminized polyester layer 2 to prevent tearing of the composite film.

[0031] The nanofiller layer group 3 includes a three-dimensional filler layer 31, a two-dimensional filler layer 32 and an adhesive layer 33; the three-dimensional filler layer 31 is located in the middle of the nanofiller layer group 3, and two-dimensional filler layers 32 are provided on both the upper and lower sides of the three-dimensional filler layer 31, and an adhesive layer 33 is provided on the outer side of the two-dimensional filler layer 32.

[0032] The three-dimensional packing layer 31 includes a central packing ball 311 and lateral packing balls 314. Multiple central packing balls 311 are arranged in a matrix, and adjacent central packing balls 311 are connected to each other through a main connecting column 312. Multiple secondary connecting columns 313 are obliquely connected to the central packing balls 311, and the secondary connecting columns 313 are fixedly connected to the lateral packing balls 314.

[0033] The two-dimensional filler layer 32 includes reinforcing filler balls 321 and fixing columns 322; adjacent reinforcing filler balls 321 are connected to each other through fixing columns 322, and the reinforcing filler balls 321 and fixing columns 322 combine to form an equilateral hexagonal structure. The three-dimensional filler layer 31 and the two-dimensional filler layer 32 are interlocked, enhancing the tear resistance of the nanofiller layer group 3.

[0034] The composite membrane is provided with a nanofiller layer group 3. The three-dimensional filler layer 31 and the two-dimensional filler layer 32 in the nanofiller layer group 3 are interlocked and connected. The three-dimensional filler layer 31 is provided with a number of central filler balls 311 in a regular manner. The central filler balls 311 are provided with a number of lateral filler balls 314 at equal angles. The two-dimensional filler layer 32 is provided with a number of reinforcing filler balls 321 in a regular manner. The central filler balls 311, lateral filler balls 314 and reinforcing filler balls 321 form a three-dimensional layered structure, which improves the polarization intensity of the composite membrane, thereby enhancing the tear resistance of the composite membrane.

[0035] Example 2: Based on Example 1, a nanofiller layer 3 is also disclosed, the specific structure of which is as follows:

[0036] The inner side of the nanofiller layer group 3 is provided with a protective layer group 4 to increase the air permeability of the composite membrane, and the inner side of the protective layer group 4 is provided with a superhydrophobic membrane layer 5, and the inner layer of the superhydrophobic membrane layer 5 is provided with a silane membrane layer 6.

[0037] The protective layer group 4 includes multiple horizontally arranged protective layers 41, with triangular grooves 42 on both sides of each protective layer 41; adjacent protective layers 41 are engaged and connected by the triangular grooves 42 on their sides. Ventilation holes 43 are evenly spaced on each protective layer 41.

[0038] When the composite membrane is used in a high temperature or high humidity environment, the humidity in the composite membrane increases. Moisture can be effectively discharged outward through the triangular groove 42 between adjacent protective layers 41 in the protective layer group 4. Furthermore, the vent holes 43 evenly spaced on the protective layer 41 can accelerate the dissipation of moisture, reduce the water content in the composite membrane, and prevent the composite membrane from being torn due to reduced adhesion between the various membrane layers.

[0039] Adjacent protective layers 41 are interlocked with each other by triangular grooves 42, which enhances the connection between adjacent protective layers 41, maintains the air permeability of the composite membrane, and prevents the composite membrane from tearing.

[0040] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they 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.

[0041] 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 tear-resistant, high-strength aluminized composite film for pharmaceuticals, comprising an organic composite coating (1) as the outermost layer of the pharmaceutical packaging, characterized in that: The organic composite coating (1) has an aluminum-plated polyester layer (2) on its inner side, and the aluminum-plated polyester layer (2) has a nano-filler layer group (3) to prevent the composite film from tearing on its inner side. The inner side of the nanofiller layer group (3) is provided with a protective layer group (4) to increase the air permeability of the composite membrane, and the inner side of the protective layer group (4) is provided with a superhydrophobic membrane layer (5), and the inner layer of the superhydrophobic membrane layer (5) is provided with a silane membrane layer (6).

2. The tear-resistant, high-strength aluminized composite film for pharmaceuticals according to claim 1, characterized in that: The nanofiller layer group (3) includes a three-dimensional filler layer (31), a two-dimensional filler layer (32), and an adhesive layer (33); The three-dimensional filler layer (31) is located in the middle of the nanofiller layer group (3), and two-dimensional filler layers (32) are provided on both the upper and lower sides of the three-dimensional filler layer (31), and an adhesive layer (33) is provided on the outer side of the two-dimensional filler layer (32).

3. The tear-resistant, high-strength aluminized composite film for pharmaceuticals according to claim 2, characterized in that: The three-dimensional packing layer (31) includes a central packing ball (311) and lateral packing balls (314); The central packing balls (311) are arranged in a matrix, and the central packing balls (311) adjacent to each other in the front, back, left and right are connected to each other through the main connecting column (312). The central packing ball (311) is obliquely connected to multiple secondary connecting columns (313), and the secondary connecting columns (313) are fixedly connected to the lateral packing balls (314).

4. The tear-resistant, high-strength aluminized composite film for pharmaceuticals according to claim 2, characterized in that: The two-dimensional filler layer (32) includes reinforcing filler balls (321) and fixing columns (322); Adjacent reinforcing filler balls (321) are connected to each other by fixing columns (322), and multiple reinforcing filler balls (321) and multiple fixing columns (322) are combined to form an equilateral hexagonal structure.

5. The tear-resistant, high-strength aluminized composite film for pharmaceuticals according to claim 2, characterized in that: The three-dimensional filler layer (31) and the two-dimensional filler layer (32) are interlocked to enhance the tear resistance of the nanofiller layer group (3).

6. The high-strength aluminized composite film for tear-resistant pharmaceuticals according to claim 1, characterized in that: The protective layer group (4) includes multiple horizontally arranged protective layers (41), and triangular grooves (42) are provided on both sides of the protective layer (41); The two adjacent protective layers (41) are engaged and connected by a triangular groove (42) on the side.

7. The high-strength aluminized composite film for tear-resistant pharmaceuticals according to claim 6, characterized in that: The protective layer (41) has vent holes (43) spaced at equal intervals.

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