Aluminum foil vacuum bag

Abstract

The utility model discloses an aluminum foil vacuum bag and relates to the technical field of packaging bags, the aluminum foil vacuum bag comprises a bag body, an opening is formed in one side of the bag body in the length direction, a plurality of first vent grooves and second vent grooves are formed in the bag body in a protruding mode in the direction away from the interior of the bag body, the first vent grooves are formed in the length direction of the bag body, and the second vent grooves are formed in the length direction of the bag body. The multiple first vent grooves are arranged in the width direction of the bag body at equal intervals, the multiple second vent grooves are arranged in the width direction of the bag body at equal intervals, the multiple first vent grooves and the multiple second vent grooves are communicated with each other, and the first vent grooves and the second vent grooves are wavy. When the vacuum bag is vacuumized, the multiple first vent grooves and the multiple second vent grooves can form an air exhaust channel in the bag body, and therefore air in the bag body can be rapidly evacuated.

Description

Technical Field

[0001] This application relates to the field of packaging bag technology, and in particular to an aluminum foil vacuum bag. Background Technology

[0002] Vacuum bags are sealed packaging containers that store items by removing internal air to create a vacuum environment. Utilizing special materials and structural design, they effectively isolate items from external air, moisture, microorganisms, etc., thereby extending the shelf life of goods or protecting sensitive items from environmental damage.

[0003] Existing vacuum packaging bags include a bag body with a smooth inner wall. During the vacuuming process, the bag body tends to stick to the packaged item, preventing air from being completely extracted and affecting the sealing effect of the item. Utility Model Content

[0004] To address the issue of poor air extraction in vacuum bags, this application provides an aluminum foil vacuum bag.

[0005] The aluminum foil vacuum bag provided in this application adopts the following technical solution:

[0006] An aluminum foil vacuum bag includes a bag body with an opening on one side along its length. Multiple first ventilation slots and second ventilation slots are formed on the bag body, protruding outwards away from the interior of the bag body. The first ventilation slots are arranged along the length of the bag body, and the multiple first ventilation slots are equally spaced along the width of the bag body. The second ventilation slots are also arranged along the width of the bag body, and the multiple second ventilation slots are equally spaced along the length of the bag body. The multiple first ventilation slots and second ventilation slots are interconnected, and both the first ventilation slots and second ventilation slots are wavy.

[0007] By adopting the above technical solution, when the vacuum bag is evacuated, multiple first ventilation slots and second ventilation slots can form an air extraction channel inside the bag, thereby enabling the air inside the bag to be quickly evacuated.

[0008] Preferably, the cross-sections of the first ventilator and the second ventilator are both small-cut circles, and the width-to-height ratio of the first ventilator and the second ventilator is 3:1.

[0009] By adopting the above technical solution, the first ventilation groove and the second ventilation groove are small-cut circles, and the width to height ratio of the first ventilation groove and the second ventilation groove is 3:1. This makes it easy for the first ventilation groove and the second ventilation groove to draw air from the bag, and also makes it easy for the bag to adhere tightly to the object after drawing air, thereby making the vacuum bag have a better air-drawing effect and a better sealing effect.

[0010] Preferably, the bag body has two heat-sealing lines at the opening, and the two heat-sealing lines are spaced apart.

[0011] By adopting the above technical solution, after the items are put into the bag from the opening, two spaced heat-sealing lines are pressed into the bag at intervals, thereby making the bag more airtight.

[0012] Preferably, the bag body is provided with an easy-tear opening.

[0013] By adopting the above technical solution, the easy-tear opening makes it convenient to tear open the bag.

[0014] Preferably, a zipper is provided on the side of the bag body away from the opening, and the tear opening is located on the side of the zipper away from the opening.

[0015] By adopting the above technical solution, the vacuum bag can be reused easily by using a zipper after the bag is torn open.

[0016] Preferably, the bag body has an easy-tear fold line on the side of the zipper away from the opening, and the end of the easy-tear fold line is connected to the easy-tear opening.

[0017] By adopting the above technical solution, the easy-tear fold line can guide the tearing path of the bag during the tearing process, thus making it easier to tear the bag neatly.

[0018] Preferably, the bag body consists of a heat-sealing layer, a reinforcing layer, a barrier layer, and a protective layer from the inside out.

[0019] By adopting the above technical solutions, the heat-sealing layer is used to close the packaging and prevent leakage of contents or external contamination; the reinforcing layer is used to improve tensile and tear resistance and prevent the packaging from being damaged during transportation or use; the barrier layer is used to prevent oxygen, water vapor, ultraviolet rays, odors, etc. from penetrating or overflowing, protecting the items from oxidation or moisture and extending their shelf life; the protective layer has scratch resistance and wear resistance.

[0020] Preferably, the heat-sealing layer is a polyethylene layer with a thickness of 50-100 μm, the reinforcing layer is a nylon layer with a thickness of 15-25 μm, the barrier layer is an aluminum foil layer with a thickness of 5-7 μm, and the protective layer is a polyester film layer with a thickness of 12-25 μm.

[0021] By adopting the above technical solutions, the heat-sealing layer is made of polyethylene, which is chemically stable, resistant to low temperatures, flexible, non-toxic, and meets food contact safety standards. Its 50-100μm thickness provides sufficient molten material to ensure heat-sealing strength, making the seal tear-resistant and leak-proof. The reinforcing layer is made of nylon, which has high mechanical strength, excellent tensile and puncture resistance, and high temperature resistance. A 15-25μm nylon layer significantly improves overall tensile strength. The barrier layer is made of aluminum foil, which provides near-complete barrier properties against oxygen, water vapor, light, and odors, and is also resistant to high temperatures. A 5-7μm aluminum foil layer achieves high barrier properties and is not easily broken during the lamination process. The protective layer is made of polyester, which has high hardness, good transparency, scratch resistance, and is suitable for printing. A 12-25μm PET layer effectively resists friction and scratches during transportation, protecting the printed pattern.

[0022] Preferably, the tear-resistant crease is provided on the reinforcing layer and the protective layer.

[0023] By adopting the above technical solution, the easy-tear fold line is set on the reinforcing layer and the protective layer, so that the bag can be easily torn along the easy-tear fold line.

[0024] In summary, this application includes at least one of the following beneficial technical effects:

[0025] 1. By utilizing the first and second ventilation slots, when vacuuming the vacuum bag, multiple first and second ventilation slots can form an air extraction channel inside the bag, thereby allowing the air inside the bag to be quickly evacuated.

[0026] 2. With the help of a zipper, the vacuum bag can be reused after it has been torn open;

[0027] 3. The easy-tear crease guides the tearing path of the bag during the tearing process, making it easier to tear the bag neatly. Attached Figure Description

[0028] Figure 1 This is a schematic diagram showing the opening state of the aluminum foil vacuum bag of this application;

[0029] Figure 2 For this application Figure 1 Sectional view of AA in the middle;

[0030] Figure 3 For this application Figure 1 Cross-sectional view of the middle section (BB);

[0031] Figure 4 This is a schematic diagram of the closed state of the aluminum foil vacuum bag of this application;

[0032] Figure 5 This is a schematic diagram of the layer structure of the aluminum foil vacuum bag of this application.

[0033] Reference numerals: 1. Bag body; 2. Opening; 3. First ventilation channel; 4. Second ventilation channel; 5. Heat seal line; 6. Easy-tear opening; 7. Chain; 8. Easy-tear fold line; 9. Heat seal layer; 10. Reinforcing layer; 11. Barrier layer; 12. Protective layer. Detailed Implementation

[0034] The following is in conjunction with the appendix Figures 1-5 This application will be described in further detail.

[0035] This application discloses an aluminum foil vacuum bag.

[0036] Reference Figure 1 , Figure 2 and Figure 3 An aluminum foil vacuum bag includes a bag body 1, with an opening 2 on one side along its length. The surface of the bag body 1 has outwardly protruding, interconnected, wave-shaped first ventilation groove 3 and second ventilation groove 4. The first ventilation groove 3 is formed along the length of the bag body 1, and multiple first ventilation grooves 3 are arranged at equal intervals along the width of the bag body 1. Similarly, the second ventilation grooves 4 are formed along the width of the bag body 1, and multiple second ventilation grooves 4 are arranged at equal intervals along the length of the bag body 1.

[0037] When the vacuum bag is evacuated, multiple first ventilation slots 3 and second ventilation slots 4 can form an air extraction channel within the bag body 1, allowing the air inside the bag body 1 to be quickly evacuated. The longitudinal and transverse structure of the wavy first ventilation slots 3 and second ventilation slots 4 enhances the strength of the channel structure, preventing the first ventilation slots 3 and second ventilation slots 4 from collapsing during the vacuuming process.

[0038] Both the first ventilation groove 3 and the second ventilation groove 4 adopt a small-cut circular structure in cross-section. With a specific cross-sectional ratio, i.e., a width-to-height ratio of 3:1, the ventilation groove is not easy to collapse during the air extraction process. At the same time, after the air extraction is completed, it is easy for the bag body 1 to adhere tightly to the object it contains.

[0039] Reference Figure 1 and Figure 4 Two parallel heat-sealing lines 5 are spaced apart along the edge of the opening 2 of the bag body 1. The heat-sealing lines are set along the width direction of the bag body 1, and the two heat-sealing lines 5 are spaced apart along the length direction of the bag body 1. When the item is put into the bag body 1 and the vacuum is completed, the two heat-sealing lines 5 at the opening 2 of the bag body 1 enable the bag body 1 to maintain its airtight integrity under extreme deformation, preventing single-point cracking and affecting the sealing effect of the aluminum foil vacuum bag.

[0040] A zipper 7 is embedded in the inner end of the bag body 1 away from the opening 2. An easy-tear opening 6 is added to the edge of the bag body 1, and the easy-tear opening 6 is located on the side of the zipper 7 away from the heat-sealing line. An easy-tear fold line 8 is provided on the bag body 1. The easy-tear fold line 8 is set along the width direction of the bag body 1, and one end of the easy-tear fold line 8 is connected to the easy-tear opening 6.

[0041] When you need to open the aluminum foil vacuum bag, tear the bag body 1 along the easy-tear opening 6. The easy-tear fold line 8 makes the torn part of the bag body 1 smoother. Then open the zipper 7 to take out the items inside the bag. Closing the zipper 7 can reseal the bag body 1, allowing the aluminum foil vacuum bag to be reused, which is convenient for consumers.

[0042] Reference Figure 1 and Figure 5 The bag body 1 consists of a heat-sealing layer 9, a reinforcing layer 10, a barrier layer 11, and a protective layer 12, from the inside out.

[0043] The heat-sealing layer 9 is made of polyethylene with a thickness of 50-100μm, which has high temperature resistance and ensures the bonding strength with the double heat-sealing pressure line 5, so that the opening 2 can be sealed multiple times.

[0044] The reinforcing layer 10 is made of 15-25μm nylon, which has high mechanical strength, excellent tensile and puncture resistance, and high temperature resistance, and can significantly improve the overall tensile strength.

[0045] The barrier layer 11 is made of 5-7μm aluminum oxide foil, which facilitates the blocking of air, water, and corrosive substances, ensuring the airtightness of the contents inside the bag 1.

[0046] The protective layer 12 is made of 12-25μm polyester film, which has stable performance and strong resistance to ultraviolet radiation, making it easy for the aluminum foil sealed bag to adapt to different environments during transportation, thus improving its practicality and reliability.

[0047] The heat-sealing layer 9 provides a flexible seal, while the reinforcing layer 10 provides rigid support, creating a mechanically complementary structure. The barrier layer 11 and the protective layer 12 achieve complete environmental barrier protection. The thickness of each layer keeps the total thickness between 92-157 μm, combining flexibility and puncture resistance. Meanwhile, easy-tear fold lines 8 are provided on the reinforcing layer 10 and the protective layer 12, facilitating the tearing of the bag 1 along these lines.

[0048] The implementation principle of an aluminum foil vacuum bag according to this application embodiment is as follows: The item to be stored is placed into the bag body 1 through the opening 2, and a stable seal is achieved using the double heat-sealing lines 5 at the opening 2. The vacuum cleaner nozzle is then aligned with the opening 2 of the bag body 1 to extract air. During the extraction of air from the vacuum bag, multiple first ventilation slots 3 and second ventilation slots 4 form an extraction channel within the bag body 1, allowing the air inside the bag body 1 to be quickly evacuated. When the consumer uses the bag, they tear along the easy-tear opening 6 to open the bag body 1. If reuse is required, a temporary seal is formed by pinching the zipper 7, facilitating the isolation of oxygen and moisture by the barrier layer 11 during storage.

[0049] The above are merely optional embodiments of this disclosure and are not intended to limit this disclosure. Various modifications and variations can be made to this disclosure by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this disclosure should be included within the scope of protection of this disclosure.

Claims

1. An aluminum foil vacuum bag, characterized in that: The bag includes a bag body (1), with an opening (2) formed on one side of the bag body (1) along its length. The bag body (1) has a plurality of first ventilation grooves (3) and second ventilation grooves (4) protruding outward in the direction away from the inside of the bag body (1). The first ventilation grooves (3) are arranged along the length of the bag body (1), and the plurality of first ventilation grooves (3) are arranged at equal intervals along the width of the bag body (1). The second ventilation grooves (4) are arranged along the width of the bag body (1), and the plurality of second ventilation grooves (4) are arranged at equal intervals along the length of the bag body (1). The plurality of first ventilation grooves (3) and second ventilation grooves (4) are interconnected, and both the first ventilation grooves (3) and the second ventilation grooves (4) are wavy.

2. The aluminum foil vacuum bag according to claim 1, characterized in that: The cross-sections of the first ventilation groove (3) and the second ventilation groove (4) are both small-cut circles, and the ratio of the width to the height of the first ventilation groove (3) and the second ventilation groove (4) is 3:

1.

3. The aluminum foil vacuum bag according to claim 1, characterized in that: The bag body (1) is provided with two heat-sealing lines (5) at the opening (2), and the two heat-sealing lines (5) are spaced apart.

4. The aluminum foil vacuum bag according to claim 1, characterized in that: The bag body (1) is provided with an easy-tear opening (6).

5. The aluminum foil vacuum bag according to claim 4, characterized in that: A zipper (7) is provided on the side of the bag body (1) away from the opening (2), and the tear opening (6) is located on the side of the zipper (7) away from the opening (2).

6. The aluminum foil vacuum bag according to claim 5, characterized in that: The bag body (1) has an easy-tear fold line (8) on the side of the zipper (7) away from the opening (2), and the end of the easy-tear fold line (8) is connected to the easy-tear opening (6).

7. The aluminum foil vacuum bag according to claim 6, characterized in that: The bag body (1) consists of a heat-sealing layer (9), a reinforcing layer (10), a barrier layer (11), and a protective layer (12) from the inside out.

8. The aluminum foil vacuum bag according to claim 7, characterized in that: The heat-sealing layer (9) is a polyethylene layer with a thickness of 50-100 μm. The reinforcing layer (10) is a nylon layer with a thickness of 15-25 μm. The barrier layer (11) is an aluminum foil layer with a thickness of 5-7 μm. The protective layer (12) is a polyester film layer with a thickness of 12-25 μm.

9. The aluminum foil vacuum bag according to claim 8, characterized in that: The tear-off crease (8) is provided on the reinforcing layer (10) and the protective layer (12).

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