Multi-layer composite packaging film

Abstract

The utility model relates to a multi-layer composite packaging film which comprises a waterproof surface layer, the buffer layer is arranged below the soft film surface layer, and the buffer layer is composed of an upper soft film layer, a lower soft film layer and foam balls arranged between the upper soft film layer and the lower soft film layer; the barrier layer is arranged below the buffer layer; and the protective layer is arranged below the barrier layer. Through the unique four-layer structural design, external moisture is effectively prevented from invading, the interior of the package is kept dry (benefited from an efficient waterproof surface layer), the impact and vibration absorption capacity is greatly improved through the innovative buffer layer design (the double-layer soft film foam ball clamping structure), and the service life of the package is prolonged. And physical damage to the commodities in the transportation and carrying process is obviously reduced. In addition, the arrangement of the barrier layer effectively prevents the permeation of oxygen and moisture, provides a more excellent protection environment for commodities which are easy to rot and need to be stored for a long time, and remarkably prolongs the shelf life and shelf life of the products.

Description

Technical Field

[0001] The utility model relates to the technical field of packaging films, in particular to a multi-layer composite packaging film. Background Art

[0002] With the rapid development of logistics and e-commerce industries, commodities face various challenges in transportation and storage, such as humidity, damage caused by physical impact, and product deterioration caused by oxygen penetration. Traditional single-material packaging films can no longer meet the growing demand for protection, especially for commodities that are fragile, require long-term storage, or are sensitive to the environment.

[0003] There are many composite packaging materials on the market, which improve packaging performance by combining the characteristics of different materials, such as using plastic films such as polyethylene (PE) and polypropylene (PP) to achieve basic waterproof functions, and using aluminum foil or EVOH layers to enhance barrier properties. However, while providing good barrier properties, these materials often ignore the physical protection of the goods, such as cushioning and shock absorption capabilities, or although cushioning materials are added, the structural design is not optimized enough, resulting in an increase in the overall packaging volume, which is not convenient for storage and transportation. Utility Model Content

[0004] In view of the deficiencies in the background technology, the utility model provides a multi-layer composite packaging film.

[0005] The technical solution adopted by the utility model is: a multi-layer composite packaging film, comprising:

[0006] Waterproof surface;

[0007] A buffer layer, the buffer layer is arranged below the soft film surface layer, and the buffer layer comprises an upper soft film layer, a lower soft film layer, and foam balls arranged between the upper soft film layer and the lower soft film layer;

[0008] a barrier layer, the barrier layer being disposed below the buffer layer;

[0009] A protective layer is disposed below the barrier layer.

[0010] Furthermore, the waterproof surface layer is composed of a waterproof film and a wear-resistant layer on the surface of the waterproof film, and the wear-resistant layer is provided with a plurality of convex grooves for increasing surface friction.

[0011] Furthermore, the thickness of the waterproof surface layer is 0.1-3 μm.

[0012] Furthermore, the barrier layer is an aluminum-coated cellulose film.

[0013] Furthermore, the barrier layer has a thickness of 5-15 μm.

[0014] Furthermore, the protective layer is composed of a polyethylene layer and an aluminum-plated film that are composited with each other.

[0015] Furthermore, the protective layer has a thickness of 20-30 μm.

[0016] The beneficial effects of the utility model are:

[0017] 1. Enhanced comprehensive protection performance: This application uses a unique four-layer structural design to not only effectively block external moisture intrusion and keep the inside of the package dry (thanks to the efficient waterproof surface), but also uses an innovative buffer layer design (double-layer soft film sandwiched with foam ball structure) to greatly improve the ability to absorb shock and vibration, significantly reducing physical damage to the goods during transportation and handling. In addition, the setting of the barrier layer effectively prevents the penetration of oxygen and moisture, providing a more superior protective environment for perishable and long-term storage products, significantly extending the shelf life and shelf life of the products.

[0018] 2. Optimized structure and lightweight design: Compared with traditional packaging, the buffer layer design of this application not only ensures sufficient protection performance, but also avoids unnecessary material accumulation, making the overall packaging lighter and more flexible, reducing the overall amount of packaging materials and the volume after packaging, which is conducive to energy conservation and emission reduction, while also reducing logistics costs and improving space utilization.

[0019] 3. Wide scope of application: The multi-layer composite packaging film of the present application is suitable for the packaging needs of various commodities due to its excellent comprehensive protective performance, especially for products such as food, electronic products, precision instruments, medicines and cosmetics that have strict requirements on moisture-proof, shock-proof and oxidation-proof, showing extremely high market adaptability and application potential.

[0020] In addition to the objects, features and advantages described above, the present invention has other objects, features and advantages.

[0021] The present invention will be further described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a structural schematic diagram of the utility model.

[0023] Figure 1 In: 1. Waterproof surface layer; 2. Buffer layer; 3. Upper soft film layer; 4. Upper soft film layer; 5. Foam ball; 6. Barrier layer; 8. Protective layer; 9. Waterproof film; 10. Wear-resistant layer; 11. Polyethylene layer; 12. Aluminum-plated film. DETAILED DESCRIPTION

[0024] 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.

[0025] 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.

[0026] The utility model provides a multi-layer composite packaging film.

[0027] In this embodiment, refer to Figure 1 The multi-layer composite packaging film comprises:

[0028] Waterproof surface layer 1;

[0029] A buffer layer 2, the buffer layer is arranged below the soft film surface layer, and the buffer layer comprises an upper soft film layer 3, a lower soft film layer 4, and foam balls 5 arranged between the upper soft film layer and the lower soft film layer;

[0030] a barrier layer 6, the barrier layer being arranged below the buffer layer;

[0031] A protective layer 8 is provided below the barrier layer.

[0032] This application uses a unique four-layer structural design to not only effectively block external moisture intrusion and keep the interior of the package dry (thanks to the efficient waterproof surface), but also uses an innovative buffer layer design (double-layer soft film sandwiched with foam ball structure) to greatly improve the ability to absorb shock and vibration, significantly reducing physical damage to the goods during transportation and handling. In addition, the setting of the barrier layer effectively prevents the penetration of oxygen and moisture, providing a more superior protective environment for perishable and long-term storage products, significantly extending the shelf life and shelf life of the products.

[0033] Specifically, the waterproof surface layer is composed of a waterproof film 9 and a wear-resistant layer 10 on the surface of the waterproof film, and the wear-resistant layer is provided with a plurality of convex grooves for increasing surface friction.

[0034] The waterproof surface layer not only has the basic waterproof function, but its wear-resistant layer and convex pattern design further enhance the physical durability of the packaging film. Even if it encounters friction and collision during handling and transportation, it can effectively protect the packaging film from damage and maintain the integrity of the packaging.

[0035] Specifically, the thickness of the waterproof surface layer is 0.1-3 μm.

[0036] The finely controlled thickness of the waterproof surface layer (0.1-3μm) ensures sufficient waterproof performance while also taking into account the economic use of materials and the lightweight of the packaging film.

[0037] Specifically, the barrier layer is an aluminum-coated cellulose film; the thickness of the barrier layer is 5-15 μm.

[0038] The use of aluminized cellulose film as the barrier layer not only significantly improves the barrier properties against oxygen, light and moisture, but also gives the packaging film good heat sealing properties and aesthetics, making it suitable for food and pharmaceutical packaging with strict shelf life requirements, effectively extending the shelf life of the product. The thickness of the barrier layer is set at 5-15μm, a range that ensures the best balance between barrier properties, cost and flexibility.

[0039] Specifically, the protective layer is composed of a polyethylene layer 11 and an aluminum-plated film 12 that are composited with each other.

[0040] The protective layer is a composite of a polyethylene layer and an aluminized film, combining the excellent sealing properties of polyethylene and the high barrier properties of an aluminized film. It not only strengthens the physical protection of the package, but also enhances the shielding effect against light and gas. It is particularly suitable for high-end product packaging that requires a high degree of protection and a beautiful appearance.

[0041] Specifically, the protective layer has a thickness of 20-30 μm.

[0042] The thickness of the protective layer is set at 20-30μm, ensuring sufficient strength and durability.

[0043] 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 multi-layer composite packaging film, characterized in that: include: Waterproof surface; A buffer layer, the buffer layer is arranged below the soft film surface layer, and the buffer layer comprises an upper soft film layer, a lower soft film layer, and foam balls arranged between the upper soft film layer and the lower soft film layer; a barrier layer, the barrier layer being disposed below the buffer layer; A protective layer is disposed below the barrier layer.

2. The multi-layer composite packaging film according to claim 1, characterized in that: The waterproof surface layer is composed of a waterproof film and a wear-resistant layer on the surface of the waterproof film, and the wear-resistant layer is provided with a plurality of convex patterns for increasing surface friction.

3. The multi-layer composite packaging film according to claim 1 or 2, characterized in that: The thickness of the waterproof surface layer is 0.1-3 μm.

4. The multi-layer composite packaging film according to claim 1, characterized in that: The barrier layer is an aluminum-plated cellulose film.

5. The multi-layer composite packaging film according to claim 1, characterized in that: The barrier layer has a thickness of 5-15 μm.

6. The multi-layer composite packaging film according to claim 1, characterized in that: The protective layer is composed of a polyethylene layer and an aluminum-plated film which are compounded with each other.

7. The multi-layer composite packaging film according to claim 6, characterized in that: The thickness of the protective layer is 20-30 μm.

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