Zippered bag free of tearing opening

By using a tear-free zipper bag design, the problem of uncontrollable tear lines in traditional packaging bags is solved, achieving both bag integrity protection and environmental friendliness improvement. It is suitable for packaging food, medicine, and other products with stringent hygiene requirements.

CN223865426UActive Publication Date: 2026-02-03吕勐
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Patent Information

Application Number
CN202520077085.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-14
Publication Date
2026-02-03
Estimated Expiration
2035-01-14

AI Technical Summary

Technical Problem

The tear trail of traditional packaging bags is difficult to control, leading to damage to the main body of the bag and loss of its seal. At the same time, the tear corner design increases the difficulty of environmental treatment and recycling costs.

Method used

Design a tear-free zipper bag that combines heat-sealed connection with easy-tear perforations. The bag opening can be easily opened with a rounded tear tab, avoiding the defects of traditional tear designs and enhancing sealing and environmental friendliness.

Benefits of technology

It achieves the protection of the bag's integrity, simplifies the operation process, reduces plastic waste, and improves efficiency and environmental friendliness, making it suitable for packaging in food, pharmaceuticals, and other products with stringent hygiene requirements.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to a tearing-free zippered bag, which comprises a bag body, a zippered bag cover, a zippered bag cover and a zippered bag cover, the zippered bag cover is formed by connecting three sides of a first bag body component and a second bag body component through hot melting, a shape with three sealed sides and one opened side is formed, and a storage chamber is arranged between the first bag body component and the second bag body component; a sealing zipper is arranged on the inner side of an opening of the bag body and composed of a first zipper assembly and a second zipper assembly, the first zipper assembly is fixedly connected with the first bag body assembly, the second zipper assembly is fixedly connected with the second bag body assembly, and the first zipper assembly and the second zipper assembly are matched and can be connected in a sealed mode. Through the ingenious combination of the easy-to-tear tooth holes and the arc tearing pieces, a user can easily open the bag opening without the help of extra tools, the operation process is greatly simplified, the use efficiency is improved, and the situation that due to the fact that a traditional tearing angle design is adopted, the track of the tearing opening is uncontrollable during opening, and the bag is damaged is effectively avoided.
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Description

Technical Field

[0001] This utility model relates to the field of packaging bag technology, specifically a tear-free zipper bag. Background Technology

[0002] In the packaging industry, traditional packaging bags, especially those designed with tear corners, have long played an important role in product packaging. However, these designs have gradually revealed a series of problems in practical applications, particularly in controlling the tear line, protecting the integrity of the packaging bag, and environmentally friendly disposal.

[0003] I. The problem of difficulty in controlling the tear trajectory

[0004] The tear-off design on traditional packaging bags is intended to provide users with a convenient way to open them. However, in practice, users often find it difficult to accurately control the tear's trajectory. When tearing, the tear corner can easily deviate from the intended tear line, causing the main body of the bag to be accidentally torn or damaged. This not only affects the bag's aesthetics but may also weaken its sealing performance, thus compromising the protective effect on the packaged goods.

[0005] II. Risk of damage to the main body of the packaging bag

[0006] Because the tearing path is difficult to control, traditional packaging bags often suffer accidental damage to the bag body during the tearing process. This damage may manifest as tearing, perforation, or deformation of the bag, severely affecting its reusability or storage function. For goods requiring long-term storage or transportation, this damage may lead to spoilage, damage, or contamination, resulting in losses for consumers.

[0007] III. Challenges of Environmental Treatment and Recycling

[0008] Another problem arising from the tear-off design of traditional packaging bags is the challenge of environmentally friendly processing and recycling. During the tearing process, the tear corner and the surrounding plastic material are often torn into small pieces, forming multiple plastic wastes. These small pieces of plastic waste are not only difficult to collect and process, but may also cause long-term pollution to the environment and ecosystems. In addition, the diversity and complexity of tear-off designs make sorting and classification during the recycling process more difficult, increasing recycling costs and processing complexity.

[0009] In conclusion, there is a need for a tear-free zipper bag as an innovative packaging solution. Summary of the Invention

[0010] To address the problems of the prior art, this utility model provides a tear-free zipper bag.

[0011] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution: a tear-free zipper bag, comprising:

[0012] The bag body is composed of three sides of bag body component one and bag body component two connected by heat fusion to form a shape with three sides sealed and one side open. A storage chamber is provided between bag body component one and bag body component two.

[0013] The bag body has a sealing zipper inside the opening. The sealing zipper consists of zipper assembly one and zipper assembly two. Zipper assembly one is fixedly connected to bag body assembly one, and zipper assembly two is fixedly connected to bag body assembly two. Zipper assembly one and zipper assembly two are matched and can be sealed.

[0014] The opening of the bag is designed as a sealing point, which is connected by heat fusion sealing. There is an easy-tear toothed hole between the sealing point and the sealing zipper. The inside of the easy-tear toothed hole is a rounded tear piece for the user to tear open.

[0015] Users can open the bag by pinching the arc-shaped tear strip to tear open the tear holes.

[0016] In this method, by setting a heat-sealed connection and easy-tear teeth at the opening end of the bag, the user can easily open the bag by simply pinching the arc-shaped tear strip and tearing open the teeth, without using any additional tools or force. This design maintains the integrity of the bag while avoiding the loss of sealing that may be caused by traditional tear designs.

[0017] The easy-tear teeth feature rounded tear blades inside, making it easy for users to grip and tear. The surface of the rounded tear blades has an anti-slip texture, increasing the friction between the user's hand and the tear blades, and improving the stability and accuracy of the tearing operation.

[0018] In one specific implementation, the sealing zipper is configured as a plastic sealing zipper.

[0019] In one specific embodiment, the surface of the arc-shaped tear strip is provided with an anti-slip texture.

[0020] In one specific embodiment, the bag body component one and bag body component two are made of composite film material, which has good flexibility, moisture resistance and non-toxicity, ensuring the safe storage of packaged items. It is suitable for food and pharmaceutical products with strict hygiene requirements. Moreover, this material can form a stable and reliable sealing structure during the hot melt connection process, ensuring the airtightness of the storage chamber.

[0021] In one specific embodiment, the tear-off perforations are disposed inside bag body assembly one and / or bag body assembly two.

[0022] The beneficial effects of this utility model are as follows:

[0023] 1. This utility model, through the ingenious combination of easy-tear perforations and arc-shaped tear strips, allows users to easily open the bag without the need for additional tools, greatly simplifying the operation process, improving efficiency, and effectively avoiding the situation where the tearing trajectory is uncontrollable when opening the bag due to the traditional corner tearing design, which can cause damage to the bag.

[0024] 2. The reusability of tear-free zipper bags reduces the amount of plastic packaging that is discarded after a single use, which helps to reduce the environmental burden. They are easy to recycle and dispose of, meet environmental protection requirements, and help promote the sustainable development of the packaging industry. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0026] Figure 2 This is a schematic diagram of the structure of the bag body of this utility model, which has easy-tear teeth on both sides.

[0027] Figure 3 This is a schematic diagram of the structure of the bag body of this utility model, which has an easy-tear toothed hole on one side.

[0028] Figure 4 This is a schematic diagram of the structure of the bag body of this utility model, which has an easy-tear toothed hole on the other side.

[0029] Figures 1 to 4 In the middle: 1. Bag body; 11. Bag body component one; 12. Bag body component two; 2. Storage compartment; 3. Sealing zipper; 31. Zipper component one; 32. Zipper component two; 4. Easy-tear perforation; 41. Arc-shaped tear piece; 5. Sealing point. Detailed Implementation

[0030] The technical solutions of this utility model will be clearly and completely described below with reference to the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of this utility model.

[0031] Example: Figures 1 to 4 The image shows a tear-free zipper bag.

[0032] Material preparation

[0033] Bag material: Composite film is selected as the main material for bag assembly 11 and bag assembly 22. This material not only has excellent flexibility and moisture resistance, but is also non-toxic and environmentally friendly, meeting the stringent hygiene requirements of food, pharmaceuticals, and other industries.

[0034] Sealing zipper material: High-quality plastic sealing zippers are selected as sealing components to ensure the durability and sealing performance of the zippers. Zipper component 1 31 and zipper component 2 32 must be matched with bag body component 1 11 and bag body component 2 (12) respectively.

[0035] Easy-tear perforations and rounded tear blades: Design the shape and size of the easy-tear perforations, as well as the structure and material of the rounded tear blades. The surface of the rounded tear blades needs to be textured with anti-slip material to improve the stability and accuracy of tearing.

[0036] II. Design and Production Process

[0037] Bag Design and Cutting: Based on the size and shape of the items to be packaged, design the dimensions and shape of bag component 11 and bag component 22. Use professional cutting equipment to cut the composite film into the required shape and size.

[0038] Heat fusion bonding: The three sides of bag body assembly 11 and bag body assembly 2 12 are tightly connected together using heat fusion bonding technology to form a shape with three sides sealed and one side open. The stability and reliability of the sealing structure must be ensured during the heat fusion bonding process.

[0039] Zipper installation: Secure zipper assembly 31 and zipper assembly 32 to the inside of the openings of bag body assembly 11 and bag body assembly 22, respectively. Ensure proper fit and sealing performance between the zipper assemblies.

[0040] Easy-tear perforations and curved tear strips: Easy-tear perforations are provided between the seal at the opening of the bag and the sealing zipper. A curved tear strip is connected inside the easy-tear perforation, and the surface of the curved tear strip has an anti-slip texture. During manufacturing, the integrity and durability of the easy-tear perforations and curved tear strips must be ensured; the easy-tear perforations can be located inside bag assembly one and / or bag assembly two.

[0041] Finished Product Inspection and Packaging: The completed tear-free zipper bags undergo rigorous inspection to ensure the bag's seal, the smoothness of the zipper, and the ease of use of the tear holes and rounded tear strips. After passing inspection, the finished products are packaged and stored.

[0042] Through the specific design and manufacturing process of this embodiment, we have successfully produced a tear-free zipper bag. This bag not only has excellent sealing and durability, but is also convenient to operate and easy to open, making it particularly suitable for product packaging scenarios with stringent hygiene requirements, such as food and pharmaceuticals.

[0043] Usage process:

[0044] Locate the tear-off perforations between the seal at the bag's opening and the sealing zipper. These perforations are typically designed as prominent lines or patterns for easy identification by the user.

[0045] Pinch the rounded tear strip inside the perforated holes with your fingers. Note the anti-slip texture design to ensure stable contact between your hand and the tear strip.

[0046] Gently tear the rounded tear strip, gradually opening the bag along the direction of the easy-tear perforations. Maintain even pressure during the tearing process to avoid sudden force that could damage the bag.

[0047] Then you can open the sealed zipper and take out the stored items inside.

[0048] Applicable situations: Three-side seal zipper bags (can replace easy-tear zippers under certain conditions), stand-up zipper bags (can replace easy-tear zippers under certain conditions), eight-side seal zipper bags (can replace easy-tear zippers under certain conditions), etc.

[0049] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A tear-free zipper bag, characterized in that, include: The bag body (1) is formed by heat-melting the three sides of the bag body component one (11) and the bag body component two (12) to form a shape with three sides sealed and one side open. A storage chamber (2) is provided between the bag body component one (11) and the bag body component two (12). The inner side of the opening of the bag body (1) is provided with a sealing zipper (3). The sealing zipper (3) is composed of zipper assembly one (31) and zipper assembly two (32). The zipper assembly one (31) is fixedly connected to the bag body assembly one (11), and the zipper assembly two (32) is fixedly connected to the bag body assembly two (12). The zipper assembly one (31) and the zipper assembly two (32) are matched and can be sealed. The opening end of the bag body (1) is set as a sealing part (5), the sealing part (5) is connected by heat fusion sealing, and an easy-tear toothed hole (4) is provided between the sealing part (5) and the sealing zipper (3). The inside of the easy-tear toothed hole (4) is provided with an arc tear piece (41) for the user to tear open. The user opens the bag (1) by pinching the arc-shaped tear piece (41) to tear open the tear hole (4).

2. The tear-free zipper bag according to claim 1, characterized in that: The sealing zipper (3) is a plastic sealing zipper.

3. The tear-free zipper bag according to claim 1, characterized in that: The surface of the arc-shaped tear piece (41) is provided with an anti-slip texture.

4. The tear-free zipper bag according to claim 1, characterized in that: The tear-off perforation (4) is located inside the bag body assembly one (11) and / or the bag body assembly two (12).