Anti-tensile medicinal packaging composite hard sheet

Abstract

The utility model relates to the technical field of composite hard sheets, and discloses a tensile medicinal packaging composite hard sheet which comprises an outer surface layer, a first bonding layer, a middle layer, a second bonding layer and an inner surface layer, a first protection layer is fixedly installed at the upper end of the outer surface layer, and a second protection layer is fixedly installed at the lower end of the inner surface layer. The middle layer and the outer surface layer are respectively used for protecting the surfaces of the outer surface layer and the inner surface layer and preventing the surfaces from being oxidized by oxygen in air, the outer surface layer and the middle layer are fixed through the first bonding layer so as to provide good mechanical strength and wear resistance and have certain chemical tolerance, and the middle layer provides effective protection, prevents permeation of oxygen and water vapor and prolongs the shelf life of medicines; the packaging material has very high tensile resistance and tear resistance, the overall strength of the packaging material is enhanced, internal drugs can be effectively protected, it is ensured that the bonding strength is not affected by temperature changes in the production process, the packaging material can be well bonded with various plastic materials, and the overall performance of the composite material is improved.

Description

Technical Field

[0001] This utility model relates to the field of composite rigid sheet technology, specifically to a tensile-resistant pharmaceutical packaging composite rigid sheet. Background Technology

[0002] Tensile-resistant pharmaceutical packaging composite rigid sheet is a composite material specifically designed for pharmaceutical packaging. Its purpose is to provide excellent mechanical strength and barrier properties to protect the stability and efficacy of the medicine inside. It features high strength, high tensile strength, airtightness, and moisture resistance, and is widely used in the packaging of pharmaceuticals, cosmetics, food, etc., effectively protecting the products and extending their shelf life.

[0003] Traditional tensile-resistant pharmaceutical packaging composite rigid sheets have significant advantages in terms of high strength, high tensile strength, airtightness, and moisture resistance, but they also have some disadvantages and limitations. This utility model adopts a multi-layer design structure to enhance mechanical strength, which can resist external stretching and tearing, reduce the risk of packaging damage, and has significant advantages in moisture protection and oxidation prevention compared with traditional single-material packaging. It can protect medicines from moisture and thus extend the shelf life of medicines. Therefore, we propose a tensile-resistant pharmaceutical packaging composite rigid sheet. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this invention provides a tensile-resistant pharmaceutical packaging composite rigid sheet, which solves the aforementioned problems.

[0006] (II) Technical Solution

[0007] To achieve the above-mentioned objectives, this utility model provides the following technical solution: a tensile-resistant pharmaceutical packaging composite rigid sheet, comprising an outer layer, a first adhesive layer, an intermediate layer, a second adhesive layer, and an inner surface layer. A first protective layer is fixedly installed at the upper end of the outer layer, and a second protective layer is fixedly installed at the lower end of the inner surface layer. The outer layer and the intermediate layer are fixed together by the first adhesive layer, and the intermediate layer and the inner surface layer are fixed together by the second adhesive layer.

[0008] Preferably, the outer layer is composed of a polyester layer and a polypropylene layer, with the polypropylene layer fixedly installed at the lower end of the polyester layer. The outer layer provides good mechanical strength and abrasion resistance, and has a certain degree of chemical resistance, being waterproof and oil-proof, ensuring that the external environment of the packaging will not affect the internal drug.

[0009] Preferably, the intermediate layer consists of an aluminum foil layer, polyester LMPET fibers, a high thermal conductivity and high insulation polyimide film, and Kevlar fiber poly(p-phenylene terephthalamide). The lower end of the aluminum foil layer is fixed with polyester LMPET fibers, the lower end of the polyester LMPET fibers is fixed with the high thermal conductivity and high insulation polyimide film, and the lower end of the high thermal conductivity and high insulation polyimide film is fixed with Kevlar fiber poly(p-phenylene terephthalamide). The aluminum foil layer blocks light, oxygen, and moisture, has high strength, is not easily torn, and is moisture-proof and oxygen-proof, thus extending the shelf life of the medicine. The polyester LMPET fibers have good tensile strength, can withstand a certain load, and are highly abrasion-resistant. The high thermal conductivity and high insulation polyimide film has high strength, which strengthens the tensile strength of the film, making the film more tensile. Kevlar fiber poly(p-phenylene terephthalamide) has excellent reinforcing tensile properties, extremely high durability, and load-bearing capacity.

[0010] Preferably, the inner surface layer is composed of a polyethylene layer and a polyvinyl chloride layer. The polyvinyl chloride layer is fixedly installed at the lower end of the polyethylene layer. The polyethylene layer has good flexibility and safety, and good moisture resistance, which can effectively protect the drug from moisture. The polyvinyl chloride layer has corrosion resistance, wear resistance, good insulation and good waterproof performance.

[0011] Preferably, the first and second adhesive layers are composed of polyamide layers, which have high tensile and tear resistance, enhance the overall strength of the packaging material, effectively protect the internal medicine, are suitable for high-temperature processing and heat-sealing applications, ensure that the bonding strength is not affected by temperature changes during the production process, can form good adhesion with a variety of plastic materials, and improve the overall performance of the composite material.

[0012] (III) Beneficial Effects

[0013] Compared with the prior art, this utility model provides a tensile-resistant pharmaceutical packaging composite rigid sheet, which has the following beneficial effects:

[0014] 1. This tensile-resistant pharmaceutical packaging composite rigid sheet has a first protective layer installed on the upper end of the outer layer to protect the surface of the outer layer from oxidation by oxygen in the air. The outer layer is composed of a polyester layer and a polypropylene layer. The polyester layer has excellent transparency and gloss, good mechanical strength and tensile strength, good heat resistance and chemical stability. The polypropylene layer is lightweight and has good rigidity and toughness, good chemical resistance, and is not easily affected by most chemicals. In addition to transparency, there are different surface treatments such as matte and high gloss, suitable for different packaging requirements.

[0015] 2. This tensile-resistant pharmaceutical packaging composite rigid sheet has an intermediate layer composed of an aluminum foil layer, polyester LMPET fibers, a high thermal conductivity and high insulation polyimide film, and Kevlar fiber poly(p-phenylene terephthalamide). The aluminum foil layer blocks light, oxygen, and moisture, is high-strength and not easily torn, and is moisture-proof and oxygen-proof to extend the shelf life of the medicine. The polyester LMPET fibers have good tensile strength, can withstand a certain load, and are highly abrasion-resistant. The high thermal conductivity and high insulation polyimide film is reinforced with high-strength glass fibers to enhance the tensile strength of the film, making the film more tensile-resistant. Kevlar fiber poly(p-phenylene terephthalamide) has excellent reinforcing tensile properties, extremely high durability, and load-bearing capacity.

[0016] 3. This tensile-resistant pharmaceutical packaging composite rigid sheet has an inner surface layer composed of a polyethylene layer and a polyvinyl chloride layer. The polyethylene layer has good flexibility and safety, as well as good moisture resistance, effectively protecting the drug from moisture. The polyvinyl chloride layer has corrosion resistance, wear resistance, good insulation, and good waterproof performance. The first and second adhesive layers are composed of polyamide layers. The polyamide layer has high tensile and tear resistance, enhancing the overall strength of the packaging material and effectively protecting the internal medicine. It is suitable for high-temperature processing and heat-sealing applications, ensuring that the bonding strength is not affected by temperature changes during production. It can form good adhesion with various plastic materials, improving the overall performance of the composite material. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model;

[0018] Figure 2 This is a cross-sectional view of the outer layer structure of this utility model;

[0019] Figure 3 This is a cross-sectional view of the intermediate layer structure of this utility model;

[0020] Figure 4 This is a cross-sectional view of the inner surface structure of this utility model;

[0021] Figure 5 This is a cross-sectional schematic diagram of the first adhesive layer and the second adhesive layer of this utility model.

[0022] In the diagram: 1. First protective layer; 2. Outer layer; 3. First adhesive layer; 4. Intermediate layer; 5. Second adhesive layer; 6. Inner surface layer; 7. Second protective layer; 8. Polyester layer; 9. Polypropylene layer; 10. Aluminum foil layer; 11. Polyester LMPET fiber; 12. High thermal conductivity and high insulation polyimide film; 13. Kevlar fiber poly(p-phenylene terephthalamide); 14. Polyethylene layer; 15. Polyvinyl chloride layer; 16. Polyamide layer. Detailed Implementation

[0023] 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.

[0024] Please see Figure 1-5 A tensile-resistant pharmaceutical packaging composite rigid sheet includes an outer layer 2, a first adhesive layer 3, an intermediate layer 4, a second adhesive layer 5, and an inner surface layer 6. A first protective layer 1 is fixedly installed at the upper end of the outer layer 2, and a second protective layer 7 is fixedly installed at the lower end of the inner surface layer 6. The outer layer 2 and the intermediate layer 4 are fixed together by the first adhesive layer 3, and the intermediate layer 4 and the inner surface layer 6 are fixed together by the second adhesive layer 5.

[0025] Furthermore, the outer layer 2 is composed of a polyester layer 8 and a polypropylene layer 9. The polypropylene layer 9 is fixedly installed at the lower end of the polyester layer 8. The outer layer 2 provides good mechanical strength and wear resistance, and has a certain degree of chemical resistance. It is waterproof and oil-proof, ensuring that the external environment of the packaging will not affect the internal drug.

[0026] Furthermore, the intermediate layer 4 is composed of an aluminum foil layer 10, polyester LMPET fibers 11, a high thermal conductivity and high insulation polyimide film 12, and Kevlar fiber poly(p-phenylene terephthalamide) 13. The lower end of the aluminum foil layer 10 is fixed with polyester LMPET fibers 11, the lower end of the polyester LMPET fibers 11 is fixed with the high thermal conductivity and high insulation polyimide film 12, and the lower end of the high thermal conductivity and high insulation polyimide film 12 is fixed with Kevlar fiber poly(p-phenylene terephthalamide) 13. The aluminum foil layer 10 blocks light, oxygen, and moisture, is high-strength and tear-resistant, and provides moisture and oxygen protection to extend the shelf life of the medicine. The polyester LMPET fibers 11 have good tensile strength, can withstand a certain load, and are highly wear-resistant. The high thermal conductivity and high insulation polyimide film 12 has high strength, which strengthens the tensile strength of the film, making the film more tensile. Kevlar... Fiber poly(p-phenylene terephthalamide) 13 has excellent tensile strength, extremely high durability and load-bearing capacity.

[0027] Furthermore, the inner surface layer 6 is composed of a polyethylene layer 14 and a polyvinyl chloride layer 15. The polyvinyl chloride layer 15 is fixedly installed at the lower end of the polyethylene layer 14. The polyethylene layer 14 has good flexibility and safety, and good moisture resistance, which can effectively protect the drug from moisture. The polyvinyl chloride layer 15 has corrosion resistance, wear resistance, good insulation and good waterproof performance.

[0028] Furthermore, the first adhesive layer 3 and the second adhesive layer 5 are composed of a polyamide layer 16. The polyamide layer 16 has high tensile and tear resistance, which enhances the overall strength of the packaging material, effectively protects the internal medicine, is suitable for high-temperature processing and heat sealing applications, ensures that the bonding strength is not affected by temperature changes during the production process, and can form good adhesion with a variety of plastic materials, thereby improving the overall performance of the composite material.

[0029] Working principle: The upper end of the outermost layer 2 is equipped with a first protective layer 1 to protect the surface of the outermost layer 2 from oxidation by oxygen in the air. The outermost layer 2 is composed of a polyester layer 8 and a polypropylene layer 9. The polyester layer 8 has excellent transparency and gloss, good mechanical strength and tensile strength, good heat resistance and chemical stability. The polypropylene layer 9 is lightweight and has good rigidity and toughness, good chemical resistance, and is not easily affected by most chemicals. In addition to transparency, there are different surface treatments such as matte and high gloss, suitable for different packaging requirements. The middle layer 4 is composed of an aluminum foil layer 10, polyester LMPET fiber 11, high thermal conductivity and high insulation polyimide film 12, and Kevlar. The film is composed of poly(p-phenylene terephthalamide) 13 fibers. The aluminum foil layer 10 blocks light, oxygen, and moisture, is high-strength and tear-resistant, and provides moisture and oxygen protection to extend the shelf life of the medicine. The polyester LMPET fiber 11 has good tensile strength, can withstand certain loads, and is highly abrasion-resistant. The high thermal conductivity and high insulation polyimide film 12 is reinforced with high-strength glass fibers to enhance the tensile strength of the film, making it even more tensile-resistant. (Kevlar) The fiber-reinforced poly(p-phenylene terephthalamide) 13 possesses excellent tensile strength, extremely high durability, and load-bearing capacity. The inner surface layer 6 consists of a polyethylene layer 14 and a polyvinyl chloride layer 15. The polyethylene layer 14 exhibits good flexibility and safety, as well as excellent moisture resistance, effectively protecting the drug from moisture. The polyvinyl chloride layer 15 possesses corrosion resistance, abrasion resistance, good insulation, and good waterproof performance. The first adhesive layer 3 and the intermediate layer 4 are composed of a polyamide layer 16. The polyamide layer 16 has high tensile and tear resistance, enhancing the overall strength of the packaging material and effectively protecting the internal drug. It is suitable for high-temperature processing and heat-sealing applications, ensuring that the bonding strength is not affected by temperature changes during production. It can form good adhesion with various plastic materials, improving the overall performance of the composite material.

[0030] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A stretch-resistant pharmaceutical packaging composite rigid sheet comprising an outer skin layer (2), a first adhesive layer (3), an intermediate layer (4), a second adhesive layer (5) and an inner skin layer (6), characterized in that: The upper end of the outer surface layer (2) is fixedly installed with a first protective layer (1), the lower end of the inner surface layer (6) is fixedly installed with a second protective layer (7), the outer surface layer (2) and the intermediate layer (4) are fixed through a first adhesive layer (3), and the intermediate layer (4) and the inner surface layer (6) are fixed through a second adhesive layer (5).

2. A stretch-resistant pharmaceutical packaging composite rigid sheet according to claim 1, characterized in that: The outer surface layer (2) is composed of a polyester layer (8) and a polypropylene layer (9), and the lower end of the polyester layer (8) is fixedly installed with the polypropylene layer (9).

3. A stretch-resistant pharmaceutical packaging composite rigid sheet according to claim 1, characterized in that: The intermediate layer (4) is composed of an aluminum foil layer (10), a polyester LMPET fiber (11), a high-thermal-conductivity high-insulation polyimide film (12) and a Kevlar fiber poly-p-phenylene terephthalamide (13), the lower end of the aluminum foil layer (10) is fixedly installed with the polyester LMPET fiber (11), the lower end of the polyester LMPET fiber (11) is fixedly installed with the high-thermal-conductivity high-insulation polyimide film (12), and the lower end of the high-thermal-conductivity high-insulation polyimide film (12) is fixedly installed with the Kevlar fiber poly-p-phenylene terephthalamide (13).

4. A stretch-resistant pharmaceutical packaging composite rigid sheet according to claim 1, characterized in that: The inner surface layer (6) is composed of a polyethylene layer (14) and a polyvinyl chloride layer (15), and the lower end of the polyethylene layer (14) is fixedly installed with the polyvinyl chloride layer (15).

5. A stretch-resistant pharmaceutical packaging composite card according to claim 1, wherein: The first adhesive layer (3) and the second adhesive layer (5) are composed of a polyamide layer (16).

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