Tear-resistant aluminum foil packaging bag

By introducing a tear-resistant layer and cushioning mechanism into the aluminum foil packaging bag, the problem of the aluminum foil packaging bag not being able to be sealed after being torn is solved, achieving higher tear resistance and sealing performance, ensuring the safety and durability of the items.

CN224324386UActive Publication Date: 2026-06-05SICHUAN MINGLONG PRINTING CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SICHUAN MINGLONG PRINTING CO LTD
Filing Date
2025-05-23
Publication Date
2026-06-05

AI Technical Summary

Technical Problem

Existing aluminum foil packaging bags cannot be easily sealed after being torn open, and usually require additional clips or other items to tighten them, which reduces their moisture resistance and affects their performance.

Method used

The packaging bag consists of an aluminum foil layer, a tear-resistant layer, a sealing inner layer, and an edge sealing layer. Combined with a cushioning mechanism and a sealing strip, the high-density polyethylene substrate and warp-knitted glass fiber mesh composite material enhance tear resistance, nylon material improves puncture resistance, silane-grafted polyethylene material prevents sticking, and airbags form a three-dimensional cushioning network to enhance sealing.

Benefits of technology

It improves the tear resistance and sealing performance of packaging bags, prevents tearing and puncture, enhances durability and safety, eliminates the risk of leakage from sealing gaps, and ensures the safe preservation of the contents.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224324386U_ABST
    Figure CN224324386U_ABST
Patent Text Reader

Abstract

The utility model discloses an anti -tear aluminium foil packaging bag belongs to packaging bag technical field, and the packaging after tearing cannot be sealed and preserved conveniently, usually needs to adopt the article such as clamp extra to clamp tightly, and the inconvenient actual practical problem, including packaging bag body, buffer mechanism and sealing strip, the buffer mechanism sets up at the outside of packaging bag body, the top of packaging bag body is provided with the opening, the sealing strip sets up at the top of opening, the buffer mechanism and sealing strip cooperation setting improve the sealing property of packaging bag body, the utility model discloses a buffer mechanism, sealing strip, sealing cavity and limit slot are set up, and the six sides of air bag cover packaging bag, form three -dimensional buffer network after inflation, absorb the impact of falling, protect internal object, improve the use safety of packaging bag body, and the sealing strip, sealing cavity and air bag cooperation that set up simultaneously, and air bag fills sealing cavity after swelling, eliminate the clearance leakage risk of traditional sealing strip, improve the sealing property of packaging bag body.
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Description

Technical Field

[0001] This utility model belongs to the field of packaging bag technology, specifically relating to a tear-resistant aluminum foil packaging bag. Background Technology

[0002] Packaging bags are bags used to package various goods, facilitating transportation and storage during production and distribution. They are widely used in daily life and industrial production. Aluminum foil packaging bags are made by laminating multiple plastic films together using a bag-making machine, and are used to package food, pharmaceuticals, industrial products, daily necessities, etc. Aluminum foil packaging bags are opaque, silvery-white, and reflective, possessing excellent barrier properties, heat-sealing properties, light-blocking properties, high-temperature resistance, low-temperature resistance, oil resistance, aroma retention, non-toxicity, odorlessness, and flexibility. Packaging aluminum foil is a commonly used packaging material in the food industry. Aluminum foil is lightweight, thin, moisture-proof, has strong sealing properties, light-blocking, and wear-resistant, effectively isolating moisture, ultraviolet rays, and bacteria from the air. Furthermore, aluminum foil is easy to process and shape, making it one of the most popular packaging bag materials.

[0003] In existing technologies, aluminum foil packaging has a simple structure, and once torn open, it is not easy to seal and preserve. It usually requires additional clamps or other items to tighten it, which greatly reduces the moisture resistance of the packaging and can easily cause the medicine inside the packaging bag to become damp and unusable.

[0004] Therefore, there is a need for a tear-resistant aluminum foil packaging bag to solve the problem that existing packaging cannot be easily sealed and preserved after being torn, and usually requires additional clamps or other items to tighten it, which is inconvenient for practical use. Utility Model Content

[0005] The purpose of this invention is to provide a tear-resistant aluminum foil packaging bag to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a tear-resistant aluminum foil packaging bag, comprising a packaging bag body, a cushioning mechanism, and a sealing strip. The cushioning mechanism is disposed on the outside of the packaging bag body, and the top of the packaging bag body is provided with an opening. The sealing strip is disposed above the opening. The cushioning mechanism and the sealing strip are configured to improve the sealing performance of the packaging bag body.

[0007] It should be noted that the packaging bag is provided with an aluminum foil layer, a tear-resistant layer, a sealing inner layer, and an edge sealing layer from the outside to the inside. The tear-resistant layer is made of a high-density polyethylene substrate and a warp-knitted glass fiber mesh composite material. The aluminum foil layer can block gas and water vapor, has a high light-blocking rate, and prevents the object from oxidizing and deteriorating. The tear-resistant layer can disperse tear stress, prevent the aluminum foil layer from cracking due to bending or puncture, and improve the tear resistance of the packaging bag.

[0008] It is worth noting that the sealing inner layer is made of nylon material. The nylon substrate provides puncture resistance and reduces wear or scratches on the object, thereby improving the object's safety.

[0009] Furthermore, it should be noted that the sealing layer is made of silane-grafted polyethylene material and has a silica anti-stick coating on the outside. The anti-stick coating can prevent the opening on the top surface of the packaging bag from sticking together, thereby improving the practicality of the packaging bag.

[0010] In a preferred embodiment, the buffer mechanism consists of an airbag, a connector, a fixing ring, and a sealing cap. The airbags are respectively disposed on the outer sides of the upper and lower surfaces and the outer sides of the vertical surfaces of the packaging bag, and the airbags are interconnected. Through the airbags, a three-dimensional buffer net is formed after restarting, which can absorb the impact of the drop and cooperate with the sealing cavity to eliminate the sealing gap and improve the sealing performance.

[0011] In a preferred embodiment, the connector is fixedly connected to the right side of the upper airbag, and the connector and the airbag are in communication with each other.

[0012] In a preferred embodiment, the retaining ring is fixedly connected to the outside of the connector, and the sealing cap is threadedly connected to the right side of the retaining ring.

[0013] In a preferred embodiment, the sealing strip has an internal sealing cavity for filling the airbag. A limiting groove is provided on the right side of the sealing cavity. The limiting groove is used for the sealing strip to be installed above the connector. The sealing cap is fixed by threads to prevent airbag leakage. The connector engages with the limiting groove to fix the position of the sealing strip and prevent the sealing strip from sliding laterally, ensuring precise alignment between the airbag and the sealing cavity. The sealing cavity accommodates the inflated airbag and eliminates micro-leakage channels between the sealing strip and the packaging bag.

[0014] Compared with the prior art, the tear-resistant aluminum foil packaging bag provided by this utility model has at least the following beneficial effects:

[0015] (1) The packaging bag body, the high-density polyethylene substrate and the warp-knitted glass fiber mesh composite tear-resistant layer can enhance the right-angle tear strength, effectively resist puncture and bending cracks, and further improve the durability and tear resistance of the packaging bag body.

[0016] (2) Through the set buffer mechanism, sealing strip, sealing cavity and limiting groove, the airbag covers the six sides of the packaging bag. After inflation, it forms a three-dimensional buffer network to absorb the impact of falling, protect the internal objects and improve the safety of the packaging bag. At the same time, the set sealing strip and sealing cavity work together with the airbag. After the airbag expands, it fills the sealing cavity, eliminates the risk of leakage from the gap of the traditional sealing strip and improves the sealing performance of the packaging bag. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the sealed state of this utility model;

[0018] Figure 2 This is a three-dimensional structural diagram of the unsealed state of this utility model;

[0019] Figure 3 This is a schematic cross-sectional view of the sealed state structure of this utility model;

[0020] Figure 4 This is a schematic cross-sectional view of the unsealed state of this utility model.

[0021] In the diagram: 1. Packaging bag body; 2. Buffer mechanism; 3. Sealing strip; 4. Sealing cavity; 5. Limiting groove; 101. Aluminum foil layer; 102. Tear-resistant layer; 103. Sealing inner layer; 104. Edge sealing layer; 201. Airbag; 202. Connector; 203. Fixing ring; 204. Sealing cap. Detailed Implementation

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

[0023] Please see Figure 1-4 This utility model provides a tear-resistant aluminum foil packaging bag, comprising a packaging bag body 1, a cushioning mechanism 2, and a sealing strip 3. The cushioning mechanism 2 is disposed on the outside of the packaging bag body 1, and an opening is provided at the top of the packaging bag body 1. The sealing strip 3 is disposed above the opening. The cushioning mechanism 2 and the sealing strip 3 are configured to improve the sealing performance of the packaging bag body 1.

[0024] Further as Figure 2 , Figure 3 and Figure 4 As shown, it is worth noting that the packaging bag body 1 is provided with an aluminum foil layer 101, a tear-resistant layer 102, a sealing inner layer 103 and an edge sealing layer 104 from the outside to the inside. The tear-resistant layer 102 is made of a high-density polyethylene substrate and a warp-knitted glass fiber mesh composite material.

[0025] The aluminum foil layer 101 can block gases and water vapor, has a high light-blocking rate, and prevents the object from oxidizing and deteriorating. The tear-resistant layer 102 can disperse tear stress, prevent the aluminum foil layer from cracking due to bending or puncture, and improve the tear resistance of the packaging bag 1.

[0026] Further as Figure 2 , Figure 3 and Figure 4 As shown, it is worth noting that the sealing inner layer 103 is made of nylon material;

[0027] The nylon substrate provides puncture resistance and reduces wear or scratches on the object by the sealing inner layer 103, thus improving the object's safety.

[0028] Further as Figure 2 , Figure 3 and Figure 4 As shown, it is worth noting that the edge sealing layer 104 is made of silane-grafted polyethylene material and has a silica anti-stick coating on the outside.

[0029] The anti-stick coating prevents the opening on the top surface of the packaging bag 1 from sticking together, thus improving the practicality of the packaging bag 1.

[0030] As can be seen from the above working process, the tear-resistant layer 102, which is a composite of high-density polyethylene substrate and warp-knitted glass fiber mesh, can enhance the right-angle tear strength of the packaging bag body 1, effectively resist puncture and bending cracks, and further improve the durability and tear resistance of the packaging bag body 1.

[0031] Further as Figure 2 , Figure 3 and Figure 4 As shown, it is worth noting that the buffer mechanism 2 consists of an airbag 201, a connector 202, a fixing ring 203, and a sealing cap 204. The airbags 201 are respectively located on the outer sides of the upper and lower surfaces and the outer sides of the vertical surfaces of the packaging bag body 1, and the airbags 201 are interconnected.

[0032] The airbag 201, once installed, forms a three-dimensional buffer net after restarting, which can absorb the impact of the fall and, together with the sealing cavity 4, eliminates the sealing gap and improves the sealing performance.

[0033] Further as Figure 2 , Figure 3 and Figure 4 As shown, it is worth noting that the connector 202 is fixedly connected to the right side of the upper airbag 201, and the connector 202 and the airbag 201 are interconnected.

[0034] The connection 202 serves as an inflation / deflation channel, automatically distributing gas to all airbags 201 and balancing pressure to prevent local over-inflation.

[0035] Further as Figure 2 , Figure 3 and Figure 4 As shown, it is worth noting that the fixing ring 203 is fixedly connected to the outside of the connector 202, the sealing cover 204 is threaded to the right side of the fixing ring 203, and the sealing strip 3 has a sealing cavity 4 inside which the airbag 201 can be filled. A limiting groove 5 is provided on the right side of the sealing cavity 4. The limiting groove 5 is used for the sealing strip 3 to be installed above the connector 202.

[0036] The threaded sealing cap 204 prevents air leakage from the airbag. The connector 202 engages with the limiting groove 5 to fix the position of the sealing strip and prevent the sealing strip 3 from sliding laterally, ensuring that the airbag 201 and the sealing cavity 4 are precisely aligned. The sealing cavity 4 accommodates the inflated airbag 201 and eliminates the micro-leakage channel between the sealing strip and the packaging bag.

[0037] This solution has the following working process: In use, first open the packaging bag 1, place the object inside the packaging bag 1, then insert the sealing strip 3 above the opening at the top of the packaging bag 1 and press it down, causing the airbag 201 to embed into the sealed cavity 4. The sealing strip 3 is fixed in place by engaging with the connector 202 through the limiting groove 5, preventing lateral displacement. Next, rotate the sealing cap 204 to open the connector 202, and blow air into the airbag 201 through the connector 202, ensuring complete airflow into the airbag 201. Finally, rotate the sealing cap 204 to close the connector 202. The retaining ring 203 prevents air leakage; at the same time, the inflated airbag 201 completely fills the interior of the sealing cavity 4, completing the sealing of the packaging bag 1; during the transportation of the packaging bag 1 and the object, if it encounters external impact, the airbag 201 will absorb the external impact, the aluminum foil layer 101 and the tear-resistant layer 102 will block oxygen and water vapor, and the sealing strip 3 and the sealing cavity 4 will form a double barrier to ensure the safety of the internal object; when it is necessary to remove the internal object, unscrew the sealing cap 204 to release the air, the airbag 201 will contract and detach from the sealing cavity 4, and the sealing strip 3 can be pulled upwards to open the packaging bag 1.

[0038] In summary: the high-density polyethylene substrate and the warp-knitted glass fiber mesh composite tear-resistant layer 102 of the packaging bag body 1 enhance right-angle tear strength, effectively resist puncture and bending cracks, and further improve the durability and tear resistance of the packaging bag body 1; through the cushioning mechanism 2, sealing strip 3, sealing cavity 4 and limiting groove 5, the airbag 201 covers all six sides of the packaging bag, and forms a three-dimensional cushioning network after inflation, absorbing the impact of drops, protecting the internal objects, and improving the safety of the packaging bag body 1; at the same time, the sealing strip 3 and sealing cavity 4 cooperate with the airbag 201, and the airbag fills the sealing cavity 4 after inflation, eliminating the risk of leakage from gaps in traditional sealing strips and improving the sealing performance of the packaging bag body 1.

Claims

1. A tear-resistant aluminum foil packaging bag, comprising a bag body (1), a cushioning mechanism (2), and a sealing strip (3), characterized in that: The buffer mechanism (2) is located outside the packaging bag body (1). The top of the packaging bag body (1) has an opening. The sealing strip (3) is located above the opening. The buffer mechanism (2) and the sealing strip (3) work together to improve the sealing performance of the packaging bag body (1).

2. The tear-resistant aluminum foil packaging bag according to claim 1, characterized in that: The packaging bag body (1) is provided with an aluminum foil layer (101), a tear-resistant layer (102), a sealing inner layer (103) and a sealing edge layer (104) from the outside to the inside. The tear-resistant layer (102) is made of a high-density polyethylene substrate and a warp-knitted glass fiber mesh composite material.

3. The tear-resistant aluminum foil packaging bag according to claim 2, characterized in that: The sealing inner layer (103) is made of nylon material.

4. The tear-resistant aluminum foil packaging bag according to claim 3, characterized in that: The sealing layer (104) is made of silane-grafted polyethylene material and has a silica anti-stick coating on the outside.

5. A tear-resistant aluminum foil packaging bag according to claim 4, characterized in that: The buffer mechanism (2) consists of an airbag (201), a connector (202), a fixing ring (203), and a sealing cap (204). The airbags (201) are respectively located on the outer sides of the upper and lower surfaces and the outer sides of the vertical surfaces of the packaging bag (1), and the airbags (201) are interconnected.

6. The tear-resistant aluminum foil packaging bag according to claim 5, characterized in that: The connector (202) is fixedly connected to the right side of the upper airbag (201), and the connector (202) and the airbag (201) are in communication with each other.

7. The tear-resistant aluminum foil packaging bag according to claim 6, characterized in that: The fixing ring (203) is fixedly connected to the outside of the connector (202), and the sealing cap (204) is threadedly connected to the right side of the fixing ring (203).

8. A tear-resistant aluminum foil packaging bag according to claim 7, characterized in that: The sealing strip (3) has a sealing cavity (4) inside which the airbag (201) can be filled. A limiting groove (5) is provided on the right side of the sealing cavity (4). The limiting groove (5) is used for the sealing strip (3) to be installed above the connector (202).