Self-standing beverage packaging bag with controllable tear

CN224830292UActive Publication Date: 2026-10-09SHANGHAI LINGDUFANG FOOD TECHNOLOGY CO LTD
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Patent Information

Application Number
CN202522006494.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-09-18
Publication Date
2026-10-09
Estimated Expiration
2035-09-18

AI Technical Summary

Technical Problem

[0003]袋身顶部通常印有“撕口”“易撕线”标识,多为锯齿状或预压痕设计,部分产品会标注“从这里撕开”的箭头,单手握住袋身中部,另一只手捏住撕口处的边角,沿易撕线向斜上方用力,即可打开一个宽度约1-2cm的饮用口,将饮用口对准嘴边直接饮用,或对准杯子缓慢倒出,因袋身柔软,倒出时需控制力度,避免流速过快,包装袋为柔性材质,开启后饮用口无固定形状,未开启时,包装内为密封环境,液体表面张力相对稳定;开启后与空气接触,表面张力降低,流动性增强,轻微晃动就易溢出,稍倾斜或挤压袋身,液体就会因“无约束的出口”快速流出,倾洒的液体可能污染衣物、背包、桌面、地面,若为含糖饮品,还易吸引蚊虫,增加清洁难度,为此我们提出一种带可控撕口的自立式饮品包装袋来解决现有的问题

Benefits of technology

[0014] 1. In use, this utility model allows you to tear off a corner of the bag by tearing it off. The beverage is poured out through the opening formed by the tear. If the beverage is not completely poured out and is consumed, the opening can be sealed by the self-sealing strips one and two on the inner wall of the opening. After sealing, the drinking opening is completely closed. Even if the packaging bag is squeezed or inverted, the liquid will not leak out. This flexibility is far superior to a non-sealed design, which can meet the needs of taking it out at any time and placing it at will. After sealing, it can isolate air and external pollutants. It can be opened, drunk, and sealed with one hand for repeated use.

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Abstract

The utility model relates to a beverage packaging bag technical field especially brings a self -supporting beverage packaging bag of controllable tear -open mouth. Its technical scheme includes bag body, suction pipe and tearable angle, the bag body upper end one corner department is provided with tearable angle, tearable angle is torn off in the bag body one corner department and forms the spout of pouring, the inner wall of both sides before and after spout is provided with corresponding self -sealing strip no.
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Description

Technical Field

[0001] This utility model relates to the field of beverage packaging bag technology, and in particular to a self-standing beverage packaging bag with a controllable tear opening. Background Technology

[0002] Self-standing beverage bags are a new type of packaging developed in the modern packaging industry for liquid beverages. With their portability, space utilization, and functionality, they are widely used in categories such as juice, yogurt, plant-based milk, and sports drinks. These flexible plastic / composite film packaging bags have a stand-up function, with a core structure consisting of the bag body and a bottom support structure. When not filled, they can be flattened and stacked, reducing transportation / warehousing costs by 30%-50% compared to glass or plastic bottles. When displayed upright on shelves, they offer higher visual visibility and save display space. Compared to glass bottles, they reduce material consumption, and some materials are recyclable, aligning with the environmental trends of lightweighting and plastic reduction.

[0003] The top of the bag usually has "tear opening" or "easy tear line" markings, often in a serrated or pre-creased design. Some products will also have an arrow indicating "tear from here." Hold the middle of the bag with one hand and pinch the corner of the tear opening with the other, then apply force diagonally upwards along the easy tear line to open a drinking spout about 1-2cm wide. Drink directly from the spout or slowly pour from it into a cup. Because the bag is flexible, control the force when pouring to avoid excessive flow. The packaging bag is made of flexible material, and the drinking spout has no fixed shape after opening. When closed, the inside of the packaging is a sealed environment with relatively stable liquid surface tension. After opening, the surface tension decreases upon contact with air, increasing fluidity. Even slight shaking can cause spillage. Slight tilting or squeezing of the bag will cause the liquid to flow out rapidly from the "unrestrained outlet," potentially staining clothes, backpacks, tabletops, and floors. For sugary drinks, it can also attract insects, increasing cleaning difficulty. Therefore, we propose a self-standing beverage packaging bag with a controllable tear opening to solve these problems. Utility Model Content

[0004] The purpose of this invention is to address the problems existing in the background technology by proposing a self-standing beverage packaging bag with a controllable tear.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a self-standing beverage packaging bag with a controllable tear opening, comprising a bag body, a straw, and a tearable corner. The tearable corner is provided at one corner of the upper end of the bag body. When the tearable corner is torn off, a pouring opening is formed at one corner of the bag body. The inner walls on the front and rear sides of the pouring opening are provided with corresponding self-sealing strip one and self-sealing strip two. The bag body comprises a bag body and a bag bottom that are connected to each other and integrally formed.

[0006] Preferably, the thickness of the bag gradually decreases from the bottom of the bag towards the body, the bag body is made of multi-layer composite film, and the bottom of the bag is a K-shaped bottom.

[0007] Preferably, the outer walls of the tearable corner are provided with indentations on both the front and rear sides, and a tear-out opening is provided at the connection between the tearable corner and the bag body. The indentations improve the grip and prevent slippage when tearing, and the tear-out opening helps to tear the tearable corner.

[0008] Preferably, a second indentation is provided at one corner of the bag body, distributed along the tearable corner. When the tearable corner is torn, the second indentation effectively tears the tearable corner along the predetermined path.

[0009] Preferably, the bag body has pull straps on both the front and rear sides at the upper end, located below the tearable corner. The pull straps facilitate applying opposing pulling forces to the closed pouring spout.

[0010] Preferably, the front end of the bag body has an opening, and a sealing film is provided at the opening to connect with the front end of the bag body. A marking ring is provided at the front end of the sealing film to facilitate insertion and penetration. The straw enters the bag body through the opening, the sealing film closes the opening, and the marking ring guides the straw.

[0011] Preferably, a straw is provided at the front end of the bag body, the straw is glued to the bag body, one end of the straw is provided with a telescopic end, and both the bag body and the rear end of the bag body are provided with viewing windows. During packaging, the straw is fixed to the bag body, and the telescopic end allows the straw to be bent and adjusted at an angle. The viewing windows allow a view of the beverage inside the bag.

[0012] Preferably, the outer wall of the straw is provided with a connecting strip, one end of the connecting strip is provided with a bottom cover, and one end of the bottom cover is provided with a sealing plug that is inserted into the straw opening. The bottom cover supports the sealing plug and is fixed to one side of the straw opening by the connecting strip. After the sealing plug closes the straw opening, it prevents the beverage from spilling from the straw opening when the bag with the straw inserted is placed down.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] 1. In use, this utility model allows you to tear off a corner of the bag by tearing it off. The beverage is poured out through the opening formed by the tear. If the beverage is not completely poured out and is consumed, the opening can be sealed by the self-sealing strips one and two on the inner wall of the opening. After sealing, the drinking opening is completely closed. Even if the packaging bag is squeezed or inverted, the liquid will not leak out. This flexibility is far superior to a non-sealed design, which can meet the needs of taking it out at any time and placing it at will. After sealing, it can isolate air and external pollutants. It can be opened, drunk, and sealed with one hand for repeated use. Attached Figure Description

[0015] Figure 1 This is a front-view three-dimensional structural diagram of the present invention;

[0016] Figure 2This is a rear-view three-dimensional structural diagram of the present invention;

[0017] Figure 3 This is a front-view three-dimensional structural diagram of the tearable corner of this utility model;

[0018] Figure 4 This is a top-view three-dimensional structural diagram of the tilting opening of this utility model;

[0019] Figure 5 This is a three-dimensional structural diagram of the tilting opening of this utility model, viewed from below.

[0020] Attached reference numerals: 1. Bag body; 2. Bag top; 3. Bag bottom; 4. Straw; 5. Sealing film; 6. Tearable corner; 7. Viewing window; 8. Opening; 9. Indentation 1; 10. Indentation 2; 11. Tearable opening; 12. Drawstring; 13. Telescopic end; 14. Sealing plug; 15. Bottom cover; 16. Connecting strip; 17. Identification ring; 18. Self-sealing strip 1; 19. Self-sealing strip 2; 20. Pouring spout. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] like Figures 1-5 As shown, the present invention proposes a self-standing beverage packaging bag with a controllable tear opening, including a bag body 1, a straw 4 and a tearable corner 6. A tearable corner 6 is provided at one corner of the upper end of the bag body 1. The tearable corner 6 is torn off to form a pouring opening 20 at one corner of the bag body 1. Corresponding self-sealing strip 18 and self-sealing strip 29 are provided on the inner walls of the front and rear sides of the pouring opening 20. The bag body 1 includes a bag body 2 and a bag bottom 3 that are connected to each other and integrally formed.

[0023] The thickness of the bottom 3 gradually decreases towards the body 2. The body 1 is made of multi-layer composite film, and the bottom of the bottom 3 is a K-shaped bottom.

[0024] The outer walls of the tearable corner 6 are indented 9 on both the front and rear sides, and a tearable opening 11 is provided at the connection between the tearable corner 6 and the bag body 2.

[0025] A second indentation 10 is provided at one corner of the bag body 2, distributed along the tearable corner 6;

[0026] The bag body 2 has pull straps 12 located below the tearable corners 6 on both the front and back sides at the top.

[0027] The front end of the bag body 2 is provided with an opening 8, and a sealing film 5 connected to the front end of the bag body 1 is provided at the opening 8. A marking ring 17 for easy insertion and penetration is provided at the front end of the sealing film 5.

[0028] A straw 4 is provided at the front end of the bag body 2. The straw 4 is glued to the bag body 2. One end of the straw 4 is provided with a telescopic end 13. A viewing window 7 is provided at the rear end of both the bag body 2 and the bag body 1.

[0029] The outer wall of the straw 4 is provided with a connecting strip 16, one end of the connecting strip 16 is provided with a bottom cover 15, and one end of the bottom cover 15 is provided with a sealing plug 14 that is inserted into the opening 8 of the straw 4.

[0030] Based on the implementation steps of Example 1: When unopened, the bag 1, made of multi-layer composite film, is kept upright by the interconnected and integrally formed bag body 2 and bag bottom 3. The bag bottom 3 is a K-shaped bottom, made of PE composite film, which is the same material as the inner layer of the bag body 2. When not filled with liquid, it can be folded to save transportation and storage space. After being filled with juice, it is stretched open by internal pressure to form a stable support structure, so that the bag 1 can stand upright in the refrigerator or on the shelf without additional support. Consumers can directly observe the color of the juice and the remaining amount through the viewing window 7 at the rear of the bag body 2 and the bag 1, and quickly decide whether to purchase.

[0031] If you choose to pour directly, hold the outer wall of the tearable corner 6 with one hand. The outer wall of the tearable corner 6 has indentations 9 on both the front and back sides. The material is the same PE composite film as the tearable corner 6. The texture is formed by the pre-pressing process, which can increase the friction when gripping and prevent your fingers from slipping. Hold the bag body 2 with the other hand and tear along the tear opening 11 where the tearable corner 6 connects to the bag body 2. At this time, the indentations 10 distributed on one corner of the bag body 2 and the tearable corner 6 guide the tearing path, ensuring that a pouring opening 20 with neat edges and a width of about 1.5cm is formed, avoiding irregular tear openings that may cause liquid to splash. Align the pouring opening 20 with the cup and slowly tilt the bag body 1. As the thickness of the bottom 3 of the bag gradually decreases towards the body 2, the liquid can flow out smoothly along the slope of the bottom 3 of the bag, effectively controlling the flow rate and preventing overflow.

[0032] If you don't finish the drink at once, pinch the front and back sides of the pouring spout 20 with your fingers, align and press the corresponding self-sealing strips 18 and 29 on the inner wall. Both self-sealing strips 18 and 29 are made of food-grade PE material. Self-sealing strip 18 has a convex chain structure and self-sealing strip 29 has a concave chain structure. When the two are fully interlocked, they form a seamless physical barrier. Even if the packaging bag is turned upside down or put in a backpack after sealing, the liquid will not leak. At the same time, it can isolate air and external pollutants, delay the oxidation and deterioration of the juice, and can extend the shelf life in a refrigerated environment.

[0033] If you wish to drink directly from the spout 20, pinch the pull strap 12 below it. The pull strap 12 is made of a multi-layer composite film of the same specifications as the bag body 2. Apply opposing pulling forces to both sides to quickly separate the self-sealing strips 18 and 18. Avoid directly prying at the edge of the spout 20 to prevent damage to the bag body 1 or cuts to your fingers. If you prefer to drink from the straw 4, locate the opening 8 at the front of the bag body 2, tear off the sealing film 5 covering the opening 8, and use the marking ring 17 at the front of the sealing film 5 to locate and remove the straw 4 glued to the front of the bag body 2. One end of the straw 4 has a telescopic end 13 made of food-grade soft PE, which is flexible and can be adjusted according to your posture when drinking. Adjust the angle when sitting or walking to improve comfort. The soft material is not easy to break and is suitable for outdoor and commuting scenarios. After drinking, remove the bottom cover 15 through the connecting strip 16 on the outer wall of the straw 4. Insert the sealing plug 14 at one end of the bottom cover 15 into the opening 8 of the straw 4. The sealing plug 14 is made of food-grade silicone. The silicone material has good elasticity and sealing performance and can completely block the straw 4 channel to prevent the drink from overflowing from the straw 4 opening when the bag 1 is placed. The silicone can be repeatedly inserted and removed without affecting secondary use. After the juice is completely consumed, the bag 1 made of multi-layer composite film can be flattened and folded. The folded size is small and easy to classify and recycle, which is in line with the environmental trend of lightweighting and plastic reduction.

[0034] The above specific embodiments are merely several preferred embodiments of this utility model. Based on the technical solution of this utility model and the relevant teachings of the above embodiments, those skilled in the art can make various alternative improvements and combinations to the above specific embodiments.

[0035] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A self-standing beverage packaging bag with a controllable tear-off, comprising a bag body (1), a straw (4), and a tear-off corner (6), characterized in that: A tearable corner (6) is provided at one corner of the upper end of the bag body (1). The tearable corner (6) is torn off to form a pouring opening (20) at one corner of the bag body (1). The inner walls of the front and rear sides of the pouring opening (20) are provided with corresponding self-sealing strip one (18) and self-sealing strip two (19). The bag body (1) includes a bag body (2) and a bag bottom (3) that are connected to each other and integrally formed.

2. The self-standing beverage packaging bag with a controllable tear opening according to claim 1, characterized in that: The thickness of the bag bottom (3) gradually decreases towards the bag body (2), the bag body (1) is made of multi-layer composite film, and the bottom of the bag bottom (3) is a K-shaped bottom.

3. A self-standing beverage packaging bag with a controllable tear opening as described in claim 1, characterized in that: The outer walls of the tearable corner (6) are provided with indentations (9) on both the front and rear sides, and a tear opening (11) is provided at the connection between the tearable corner (6) and the bag body (2).

4. A self-standing beverage packaging bag with a controllable tear opening as described in claim 1, characterized in that: The bag body (2) has an indentation (10) distributed along the tearable corner (6) at one corner.

5. A self-standing beverage packaging bag with a controllable tear opening as described in claim 1, characterized in that: The bag body (2) has pull straps (12) on both the front and back sides at the upper end, located below the tearable corner (6).

6. A self-standing beverage packaging bag with a controllable tear opening according to claim 1, characterized in that: The front end of the bag body (2) is provided with an opening (8), and a sealing film (5) connected to the front end of the bag body (1) is provided at the opening (8). The front end of the sealing film (5) is provided with a marking ring (17) for easy insertion and penetration.

7. A self-standing beverage packaging bag with a controllable tear opening according to claim 1, characterized in that: The front end of the bag body (2) is provided with a straw (4), which is glued to the bag body (2). One end of the straw (4) is provided with a telescopic end (13). Both the rear ends of the bag body (2) and the bag body (1) are provided with a viewing window (7).

8. A self-standing beverage packaging bag with a controllable tear opening as described in claim 7, characterized in that: The outer wall of the straw (4) is provided with a connecting strip (16), one end of the connecting strip (16) is provided with a bottom cover (15), and one end of the bottom cover (15) is provided with a sealing plug (14) that is inserted into the opening (8) of the straw (4).