A tearable nut packaging bag
By incorporating guide lines and tear flaps on the outer layer of nut packaging bags, combined with sealing strips and seasoning bag designs, the problems of nut packaging bags being difficult to tear, easily torn, and having uneven tear edges are solved, achieving the effects of easy tearing and convenient sealing.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHEJIANG HENGGUANG PACKAGING CO LTD
- Filing Date
- 2025-07-31
- Publication Date
- 2026-07-21
AI Technical Summary
Existing nut packaging bags are difficult to tear, easily break, and produce uneven tears, especially for the elderly, children, or those with weaker hands. Furthermore, the traditional design affects the aesthetics and the effectiveness of secondary sealing.
The bag is made of flexible composite material, with an outer layer of PET material, an inner aluminum foil layer and a heat-sealing layer, and parallel guide lines, guide grooves and tear wings in the preset tear area to assist in tearing. It also has a sealing strip and seasoning bag inside for easy sealing and seasoning.
It achieves easy tearing, controllable tearing direction, and smooth tear, and provides convenient sealing and seasoning functions, enhancing the user experience.
Smart Images

Figure CN224529442U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of food packaging bag technology, and more particularly to an easy-tear nut packaging bag. Background Technology
[0002] Existing nut packaging bags (such as stand-up pouches, three-side seal bags, and back seal bags) often have the following problems: 1. Difficult to tear: Especially high-strength materials such as aluminum-plastic composite film require a large initial tearing force, which is difficult for consumers (especially the elderly, children or those with weaker hand strength) to tear, or they need to use tools such as scissors.
[0003] 2. Easily torn: The tearing direction is not easy to control, and it is easy to tear in the wrong direction, causing the bag to break over a large area and the nuts to scatter.
[0004] 3. Uneven tear: Traditional V-shaped notch or dotted line design may produce rough edges, serrated openings or incomplete tears during the tearing process, affecting the appearance and secondary sealing. Utility Model Content
[0005] This application provides an easy-tear nut packaging bag, which can improve the technical problems of nut packaging bags that are not easy to tear, are easy to tear, and have uneven tear edges in the related technology.
[0006] This application provides an easy-tear nut packaging bag, comprising: a bag body made of flexible composite material, the bag body having at least one heat-sealed edge, characterized in that: the bag body consists of an outer layer, an aluminum foil layer and a heat-sealing layer from the outside to the inside, the outer layer being made of PET material to provide the main mechanical strength of the bag body, and the outer layer having multiple parallel and spaced guide lines in a predetermined tear area of the bag body.
[0007] The technical solutions described above in this application embodiment have at least the following technical effects: by opening a guide line at the opening of the packaging bag, when the user tears the packaging bag from the beginning of the guide line on the edge of the bag, the bag is easier to tear and the tearing direction proceeds along the guide line, making the tear of the bag smoother.
[0008] In some embodiments, a guide groove is provided on one side of the bag body at the beginning of the guide line, and a tear flap is formed inside the guide groove, the root of the tear flap being connected to the guide line.
[0009] In some embodiments, a first sealing strip and a second sealing strip are respectively provided on both sides of the inner wall of the bag at the opening of the bag. A sealing groove is provided on the side of the first sealing strip away from the inner wall of the bag, and a sealing protrusion that cooperates with the sealing groove is provided on the side of the second sealing strip opposite to the first sealing strip.
[0010] In some embodiments, a seasoning bag is provided inside the bag body for holding seasonings.
[0011] In some embodiments, a heat-sealing strip is laminated to one side of the seasoning bag. The heat-sealing strip is located inside the heat-sealing layers on both sides of the bag body and is heat-sealed to the heat-sealing layers on both sides.
[0012] In some embodiments, the seasoning bag has an easy-tear opening on its side.
[0013] In some embodiments, at least one heat-sealed edge is formed between the inner walls on both sides of the inside of the seasoning bag, and the heat-sealed edge divides the inside of the seasoning bag into several independent receiving spaces. Several easy-tear openings are provided and are used to open each receiving space respectively. Attached Figure Description
[0014] Figure 1 A schematic diagram of the overall structure of the easily tearable nut packaging bag provided in the embodiments of this application; Figure 2 A schematic diagram showing the easily tearable nut packaging bag after it has been opened, as provided in an embodiment of this application. Figure 3 A cross-sectional view of an easily tearable nut packaging bag after it has been opened, as provided in an embodiment of this application. Figure 4 for Figure 3 Enlarged view of section A in the middle; Figure 5 This is a schematic diagram of the overall structure of the seasoning bag provided in the embodiments of this application.
[0015] The following are the labeling elements in the figure: 1. Bag body; 11. Outer layer; 12. Aluminum foil layer; 13. Heat-sealing layer; 14. Guide line; 15. Guide groove; 16. Tear flap; 21. First sealing strip; 211. Sealing groove; 22. Second sealing strip; 221. Sealing protrusion; 3. Seasoning bag; 31. Heat-sealing strip; 32. Easy-tear opening. Detailed Implementation
[0016] Existing nut packaging bags (such as stand-up pouches, three-side seal bags, and back seal bags) often have the following problems: 1. Difficult to tear: Especially high-strength materials such as aluminum-plastic composite film require a large initial tearing force, which is difficult for consumers (especially the elderly, children or those with weaker hand strength) to tear, or they need to use tools such as scissors.
[0017] 2. Easily torn: The tearing direction is not easy to control, and it is easy to tear in the wrong direction, causing the bag to break over a large area and the nuts to scatter.
[0018] 3. Uneven tear: Traditional V-shaped notch or dotted line design may produce rough edges, serrated openings or incomplete tears during the tearing process, affecting the appearance and secondary sealing.
[0019] Based on this, in order to improve the problems of nut packaging bags being difficult to tear, easily torn, and having uneven tear edges in related technologies, the embodiments of this application provide the following solutions.
[0020] The following combination Figures 1-5 This application will be described in further detail.
[0021] This embodiment discloses an easy-tear nut packaging bag, comprising: a bag body 1 made of flexible composite material, the bag body 1 having at least one heat-sealed edge, characterized in that: the bag body 1 consists of an outer layer 11, an aluminum foil layer 12 and a heat-sealing layer 13 from the outside to the inside, the outer layer 11 being made of PET material, used to provide the main mechanical strength of the bag body 1, and the outer layer 11 having multiple parallel and spaced guide lines 14 in the preset tear area of the bag body 1.
[0022] As can be seen from the above, the easy-tear nut packaging bag provided in this application embodiment has high mechanical strength in its PET material, which serves as the main protective layer of the bag body 1. The aluminum foil layer 12 serves as the main barrier layer of the bag body 1, providing good barrier performance against air and moisture. When the guide line 14 is opened, it can be cut by laser cutting, mechanical creasing, or half-cutting processes, controlling the depth of the guide line 14 to 30%-70% of the outer layer 11 without damaging the aluminum foil layer 12. This ensures the barrier performance of the bag body 1 at the point where the guide line 14 is opened, while creating an easy-tear line along the guide line 14. When the user tears the packaging bag from the beginning of the guide line 14 at the edge of the bag body 1, the bag body 1 is more easily torn, and the tearing direction is along the guide line 14, preventing the bag body 1 from being torn over a large area and making the tear of the bag body 1 smoother.
[0023] 2. In some embodiments, please refer to Figure 1 A guide groove 15 is provided on one side of the bag body 1 at the beginning of the guide line 14. A tear flap 16 is formed inside the guide groove 15, and the root of the tear flap 16 is connected to the guide line 14.
[0024] With this design, the tear wing 16 can provide a visual cue to the user, guiding the user to tear the packaging bag from the tear wing 16. The user pinches the tear wing 16 with their fingers and then pulls the tear wing 16 along the guide line 14. The root of the tear wing 16 can tear the bag body 1 along the guide line 14, making the bag body 1 easier to tear open.
[0025] 3. Optionally, in some embodiments, please refer to Figures 2 to 4A first sealing strip 21 and a second sealing strip 22 are respectively provided on both sides of the inner wall of the bag body 1 at the opening of the bag body 1. A sealing groove 211 is provided on the side of the first sealing strip 21 away from the inner wall of the bag body 1, and a sealing protrusion 221 that cooperates with the sealing groove 211 is provided on the side of the second sealing strip 22 opposite to the first sealing strip 21.
[0026] With this design, if the user does not finish consuming all the nuts packaged inside the bag after opening the bag 1, the packaging bag can be resealed using the first sealing strip 21 and the second sealing strip 22 to prevent the nuts from getting damp and spoiling. First, the air inside the packaging bag is squeezed out from the opening of the bag 1. Then, starting from one side of the bag 1, the first sealing strip 21 and the second sealing strip 22 are pressed together to completely press the sealing protrusion 221 into the sealing groove 211, so that a seal is formed between the first sealing strip 21 and the second sealing strip 22 to close the opening of the bag 1 and reseal the packaging bag.
[0027] 4. Optionally, please refer to Figure 3 The bag body 1 has a seasoning bag 3 inside, which is used to hold seasonings.
[0028] With this setup, seasonings can be placed inside seasoning bag 3 during product production, making it convenient for users to open seasoning bag 3 and season the food inside the packaging.
[0029] 5. In some embodiments, please refer to Figure 3 and Figure 5 The seasoning bag 3 has a heat-sealing strip 31 on one side. The heat-sealing strip 31 is located inside the heat-sealing layers 13 on both sides of the bag body 1 and is heat-sealed to the heat-sealing layers 13 on both sides.
[0030] This design, by heat-sealing one side of the seasoning bag 3 to the bag body 1, prevents the seasoning bag 3 from being damaged by friction and compression from the nuts at the bottom inside the packaging bag during product transportation, thus protecting the seasoning bag 3. It also prevents users from carelessly discarding the seasoning bag 3 after pouring out the seasonings, which would cause environmental pollution.
[0031] 6. Optionally, in some embodiments, please refer to Figure 5 The seasoning bag 3 has an easy-tear opening 32 on its side.
[0032] With this design, users can more easily tear open the seasoning bag 3 through the easy-tear opening 32.
[0033] 7. Optionally, please refer to Figure 5 The inner walls on both sides of the seasoning bag 3 are heat-sealed to form at least one heat-sealed edge, which divides the interior of the seasoning bag 3 into several independent storage spaces. Several easy-tear openings 32 are provided and are used to open each storage space.
[0034] With this design, different seasonings can be placed in different compartments during product production. Users can open the different compartments through the easy-tear openings 32 and use different seasonings to flavor the food inside the bag 1, making the product's flavor richer.
[0035] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.
Claims
1. A tear-resistant nut packaging bag, comprising a bag body (1) made of a flexible composite material, said bag body (1) having at least one heat-sealed edge, characterized in that: The bag body (1) consists of an outer layer (11), an aluminum foil layer (12), and a heat-sealing layer (13) from the outside to the inside. The outer layer (11) is made of PET material and is used to provide the main mechanical strength of the bag body (1). The outer layer (11) has multiple parallel and spaced guide lines (14) in the preset tear area of the bag body (1).
2. The easy-tear nut packaging bag according to claim 1, characterized in that: A guide groove (15) is provided on one side of the bag body (1) at the beginning of the guide line (14). A tear flap (16) is formed inside the guide groove (15), and the root of the tear flap (16) is connected to the guide line (14).
3. The easy-tear nut packaging bag according to claim 1 or 2, characterized in that: On both sides of the inner wall of the bag body (1), at the opening of the bag body (1), a first sealing strip (21) and a second sealing strip (22) are respectively provided. A sealing groove (211) is provided on the side of the first sealing strip (21) away from the inner wall of the bag body (1). A sealing protrusion (221) that cooperates with the sealing groove (211) is provided on the side of the second sealing strip (22) opposite to the first sealing strip (21).
4. The easy-tear nut packaging bag according to claim 3, characterized in that: The bag body (1) has a seasoning bag (3) inside for holding seasonings.
5. The easy-tear nut packaging bag according to claim 4, characterized in that: The seasoning bag (3) has a heat-sealing strip (31) on one side. The heat-sealing strip (31) is located inside the heat-sealing layer (13) on both sides of the bag body (1) and is heat-sealed to the heat-sealing layer (13) on both sides.
6. The easy-tear nut packaging bag according to claim 4, characterized in that: The seasoning bag (3) has an easy-tear opening (32) on its side.
7. The easy-tear nut packaging bag according to claim 6, characterized in that: At least one heat-sealed edge is formed between the inner walls on both sides of the seasoning bag (3). The heat-sealed edge divides the interior of the seasoning bag (3) into several independent storage spaces. Several easy-tear openings (32) are provided and are used to open each storage space.