Sterile packaging bag

Abstract

A bag body is composed of a puncture-proof layer and an antibacterial composite layer, after the puncture-proof layer and an antibacterial inner layer are stacked, the peripheries of the puncture-proof layer and the antibacterial inner layer are fixedly connected in a heat sealing mode, and then a vacuum interlayer is formed between the puncture-proof layer and the antibacterial inner layer. The film layer structure of the stab-resistant layer is composed of a first PET outer layer, a stab-resistant layer and a first PE layer which are compounded in sequence, and the film layer structure of the antibacterial composite layer is composed of a second PET outer layer, an antibacterial layer, an antioxidant layer, a barrier layer and a second PE layer which are compounded in sequence. The puncture-proof layer adopts the composite design of the high-strength first PET outer layer, the special puncture-proof layer and the first PE layer, the capacity of the packaging bag for resisting external impact and penetration of sharp objects is enhanced, internal objects can be effectively protected against physical damage even in a severe environment, and the damage risk in the transportation and storage process is greatly reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of packaging bags, in particular to an aseptic packaging bag. Background Art

[0002] In the fields of modern healthcare, food industry and transportation of special goods, the safety and protection of aseptic packaging are crucial considerations. Traditional aseptic packaging mainly focuses on maintaining the sterility of the internal environment to ensure the safety and effectiveness of medical devices, food and other products. However, with the development of the industry and the increase in safety requirements, packaging must not only prevent microbial contamination, but also have stronger physical protection properties, especially against the penetration of sharp objects, and the antioxidant function required to extend the shelf life of the product, in order to adapt to more complex and changing application scenarios.

[0003] Currently, most aseptic packaging bags on the market focus on a single function, such as pure sterility maintenance or basic physical protection, and often cannot meet the needs of high-strength puncture resistance, high-efficiency antibacterial and long-term antioxidant at the same time. This limitation is particularly prominent in emergency medical services, outdoor rescue, military logistics support, and medical and food fields that require extremely high storage conditions. For example, when transporting sensitive medical equipment or biological samples, the packaging may be subject to the risk of accidental impact or puncture by sharp objects, causing damage or contamination of the internal items; at the same time, during long-term storage or transportation, oxygen penetration may cause oxidation and deterioration of the product, affecting quality and safety. Utility Model Content

[0004] In view of the deficiencies in the background technology, the utility model provides a sterile packaging bag.

[0005] The technical solution adopted by the utility model is: an aseptic packaging bag, comprising a bag body, the bag body is composed of a puncture-proof layer and an antibacterial composite layer, the puncture-proof layer and the antibacterial inner layer are laminated and heat-sealed at the periphery to form a vacuum sandwich between the puncture-proof layer and the antibacterial inner layer;

[0006] The film layer structure of the stab-proof layer is a first PET outer layer, a stab-proof layer and a first PE layer which are compounded in sequence, and the film layer structure of the antibacterial composite layer is a second PET outer layer, an antibacterial layer, an antioxidant layer, a barrier layer and a second PE layer which are compounded in sequence.

[0007] Furthermore, the stab-proof layer is metallocene polyethylene.

[0008] Furthermore, the stab-proof layer has a thickness of 10 μm-20 μm.

[0009] Furthermore, the antibacterial layer is a resin layer containing an antibacterial agent.

[0010] Furthermore, the anti-oxidation layer is a PE (polyethylene) layer to which an antioxidant is added.

[0011] Furthermore, the barrier layer is an aluminum foil layer.

[0012] Furthermore, the bag body is provided with an opening, a sealing cover is threadedly connected to the opening, an observation window is provided on the surface of the bag body, a transparent film is provided on the observation window, and an aluminum foil protective film is adhered to one side of the transparent film.

[0013] The beneficial effects of the utility model are:

[0014] 1. Excellent physical protection performance: The stab-proof layer adopts a composite design of a high-strength first PET outer layer, a proprietary stab-proof layer, and a first PE layer, which enhances the ability of the packaging bag to resist external impact and penetration by sharp objects. It can effectively protect the internal items from physical damage even in harsh environments, greatly reducing the risk of damage during transportation and storage.

[0015] 2. High-efficiency antibacterial protection: The antibacterial layer integrated in the antibacterial composite layer can effectively inhibit the growth and reproduction of microorganisms such as bacteria and molds, and maintain a sterile environment inside the package. This is especially important for products that are susceptible to microbial contamination, such as medical supplies and food, ensuring the health and safety of end users.

[0016] 3. Enhanced antioxidant capacity: The introduction of the antioxidant layer effectively isolates external oxygen, reduces the oxidation reaction of internal items, extends the shelf life of products, especially easily oxidized foods and medicines, maintains their freshness and nutritional value, and also reduces problems such as product discoloration and taste change caused by oxidation.

[0017] In addition to the objects, features and advantages described above, the present invention has other objects, features and advantages.

[0018] The present invention will be further described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of the utility model.

[0020] Figure 2 It is a schematic cross-sectional diagram of the puncture-proof layer and the antibacterial composite layer.

[0021] Figure 1-2 Middle: 1. Bag body; 2. Anti-puncture layer; 3. Antibacterial composite layer; 4. Vacuum interlayer; 5. First PET outer layer; 6. Anti-puncture layer; 7. First PE layer; 8. Second PET outer layer; 9. Antibacterial layer; 10. Antioxidant layer; 11. Barrier layer; 12. Second PE layer; 14. Opening; 15. Cover; 16. Observation window; 17. Aluminum foil protective film. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back...), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0024] The utility model provides a sterile packaging bag.

[0025] In this embodiment, refer to Figure 1-2 The aseptic packaging bag comprises a bag body 1, wherein the bag body is composed of a stab-proof layer 2 and an antibacterial composite layer 3, wherein the stab-proof layer and the antibacterial inner layer are laminated and heat-sealed to form a vacuum interlayer 4 between the stab-proof layer and the antibacterial inner layer;

[0026] The film layer structure of the stab-proof layer is a first PET outer layer 5, a stab-proof layer 6 and a first PE layer 7 composited in sequence, and the film layer structure of the antibacterial composite layer is a second PET outer layer 8, an antibacterial layer 9, an antioxidant layer 10, a barrier layer 11 and a second PE layer 12 composited in sequence.

[0027] In the above technical solution, the puncture-proof layer and the antibacterial composite layer are laminated, heat-sealed and connected to form a vacuum interlayer between the two, thus achieving efficient defense against external physical damage and strict aseptic control of the internal environment. This design not only enhances the physical strength of the package, but also effectively blocks external microorganisms through the vacuum environment, prolongs the shelf life of the product, and improves the safety and reliability of the package.

[0028] Specifically, the stab-proof layer is metallocene polyethylene; the thickness of the stab-proof layer is 10 μm-20 μm.

[0029] The puncture-proof layer is made of metallocene polyethylene (mPE), which has higher strength and toughness than ordinary PE, significantly improving the packaging bag's ability to defend against sharp objects, effectively reducing the risk of puncture during transportation and use, and protecting internal items from damage. It is particularly suitable for occasions that require high-strength physical protection.

[0030] Specifically, the antibacterial layer is a resin layer containing an antibacterial agent.

[0031] The resin layer containing the antibacterial agent serves as an antibacterial layer, which can continuously release or activate the antibacterial ingredients and effectively inhibit the growth of microorganisms such as bacteria and molds.

[0032] Specifically, the anti-oxidation layer is a PE (polyethylene) layer to which an antioxidant is added.

[0033] The PE layer with added antioxidants serves as an antioxidant layer, which effectively prevents oxygen penetration, slows down the oxidation rate of internal items, extends the shelf life of products, maintains product color, flavor and nutritional value, and has a significant preservation effect on easily oxidized products such as food and medicine.

[0034] Specifically, the barrier layer is an aluminum foil layer.

[0035] The use of aluminum foil as a barrier layer provides excellent gas and moisture barrier properties, further enhancing the sealing and moisture resistance of the package. For sensitive products that require strict control of gas exchange, such as coffee and tea, it can significantly improve their preservation quality.

[0036] Specifically, the bag body is provided with an opening 14, a sealing cover 15 is threadedly connected to the opening, an observation window 16 is provided on the surface of the bag body, a transparent film is provided on the observation window, and an aluminum foil protective film 17 is adhered to one side of the transparent film.

[0037] The opening is equipped with a threaded cover for repeated opening and sealing. The observation window uses a transparent film with an aluminum foil protective film, which makes it easy to observe the condition of the internal items without affecting the light-blocking and anti-oxidation properties of the packaging.

[0038] Technical personnel should note: Although the utility model has been described according to the above specific implementation methods, the concept of the utility model is not limited to this utility model. Any modification using the concept of the utility model will be included in the scope of protection of this patent right.

Claims

1. A sterile packaging bag, comprising a bag body, characterized in that: The bag body is composed of a stab-proof layer and an antibacterial composite layer. The stab-proof layer and the antibacterial inner layer are laminated and heat-sealed at the periphery to form a vacuum sandwich between the stab-proof layer and the antibacterial inner layer. The film layer structure of the stab-proof layer is a first PET outer layer, a stab-proof layer and a first PE layer which are compounded in sequence, and the film layer structure of the antibacterial composite layer is a second PET outer layer, an antibacterial layer, an antioxidant layer, a barrier layer and a second PE layer which are compounded in sequence.

2. The aseptic packaging bag according to claim 1, characterized in that: The stab-proof layer is metallocene polyethylene.

3. The aseptic packaging bag according to claim 1, characterized in that: The stab-proof layer has a thickness of 10 μm-20 μm.

4. The aseptic packaging bag according to claim 1, characterized in that: The antibacterial layer is a resin layer containing an antibacterial agent.

5. The aseptic packaging bag according to claim 1, characterized in that: The anti-oxidation layer is a PE (polyethylene) layer to which an antioxidant is added.

6. The aseptic packaging bag according to claim 1, characterized in that: The barrier layer is an aluminum foil layer.

7. The aseptic packaging bag according to claim 1, characterized in that: The bag body is provided with an opening, a sealing cover is threadedly connected to the opening, an observation window is provided on the surface of the bag body, a transparent film is provided on the observation window, and an aluminum foil protective film is adhered to one side of the transparent film.

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