Food packaging bag
By using an inner and outer bag structure design, along with a transparent self-sealing bag and test strip pack, the problem of not being able to detect leaks in a timely manner after food packaging bags are damaged has been solved, thus improving food safety and ease of cleaning.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-23
- Publication Date
- 2026-03-06
AI Technical Summary
Existing food packaging bags are often damaged and cannot be detected in time, leading to leakage of liquid foods and potentially causing health and safety issues.
A structure comprising an inner bag and an outer self-sealing bag was designed. The inner bag is secured inside the outer self-sealing bag by an elastic strap. The outer self-sealing bag is transparent and has a textured zipper and a test strip pack for timely detection of leaks and securing of the inner bag. The double-layer wrapping of the inner and outer bags enhances security.
Leaks can be detected promptly through the transparent self-sealing bag, preventing accidental ingestion. The inner bag is securely fixed and not easily damaged, allowing liquid residue to remain inside for easy cleaning, thus improving food safety and protection.
Smart Images
Figure CN223973055U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of packaging bag technology, and in particular to a food packaging bag. Background Technology
[0002] Food packaging bags are bag-shaped containers specifically designed for storing food. Many food packaging bags, in addition to solid food portions, often contain liquids such as juices, soups, and beverages. Because these bags are made of high-strength materials like aluminum foil, or because the damage is outside the liquid surface, sometimes the damage doesn't show obvious changes in appearance or leakage. Consumers may not notice the damage when purchasing and consuming the food, unknowingly consuming its contents. This compromises food quality, and if the food inside has spoiled, it can lead to health and safety issues.
[0003] Therefore, current food packaging bags on the market need improvement to solve the above problems. Utility Model Content
[0004] In view of this, the purpose of this utility model is to provide a food packaging bag to solve the above problems.
[0005] To achieve the above objectives, the present invention adopts the following technical solution:
[0006] This utility model provides a food packaging bag, which includes an inner bag and an outer self-sealing bag.
[0007] The inner bag is sealed to hold liquid food.
[0008] The self-sealing bag includes a bag body with an opening at the top and side seals on both sides of the bag body. The bag body is transparent, and a raised zipper strip is provided below the opening of the bag body for closing the opening of the bag body.
[0009] An elastic band is provided between the two side seals of the bag body. The two ends of the elastic band are respectively connected to the two side seals. The elastic band is wrapped around the outer periphery of the inner bag to press and fix the inner bag.
[0010] Preferably, the bottom of the outer self-sealing bag contains a test strip pack.
[0011] Preferably, the bottom of the outer self-sealing bag is provided with a bottom test strip chamber sealed by a one-way permeation membrane, and the test strip pack is contained in the bottom test strip chamber.
[0012] Preferably, the inner bag is an aluminum foil bag.
[0013] Preferably, the inner bag has tear-off openings on both sides.
[0014] Preferably, there are two convex and concave zipper strips, which are arranged in parallel.
[0015] Preferably, the bottom of the self-sealing bag is provided with an absorbent cotton strip.
[0016] Preferably, the elastic band is a TPU thermoplastic elastomer band.
[0017] Preferably, there are two or more elastic straps, which are arranged in parallel to each other and placed side by side between the opening and the bottom of the bag.
[0018] The main technical effects achieved by this utility model solution include:
[0019] In the aforementioned food packaging bags, the inner bag is secured by an elastic sleeve between the two side seals. This allows the liquid portion of the liquid food to be squeezed out of the inner bag under the pressure of the elastic sleeve when the inner bag is damaged and leaks. Since the outer self-sealing bag is transparent, consumers can easily observe the liquid squeezed out of the inner bag, thus promptly detecting the leakage of liquid food and avoiding accidental ingestion that could lead to health problems.
[0020] Because the inner bag can be tightly secured to the middle area of the outer self-sealing bag with elastic straps, it is not easy to be damaged. Furthermore, the double wrapping of the outer self-sealing bag and the inner bag makes it relatively safer and effectively improves the protection of food by the packaging.
[0021] After the liquid is squeezed out of the inner bag, it remains inside the outer self-sealing bag and will not leak into the external environment, making it easy to clean.
[0022] The above-mentioned food packaging bags have a simple structure and are easy to implement. The production and fixing of the elastic sleeve can be directly achieved by conventional packaging bag manufacturing processes and corresponding equipment, without the need for additional equipment, resulting in lower costs and suitability for large-scale production.
[0023] The bag can also hold utensils such as spoons and chopsticks, allowing the utensils to be sealed together for easy access to the food inside. The elastic straps can secure the utensils together with the elastic straps. Attached Figure Description
[0024] Figure 1 A perspective view of the food packaging bag provided by this utility model;
[0025] Figure 2 This is a schematic diagram of the structure of the food packaging bag.
[0026] The reference numerals in the above figures are as follows:
[0027] Inner bag 1, easy-tear opening 10, outer self-sealing bag 2, bag body 21, side seal 22, embossed zipper 23, elastic strap 24, bottom test paper chamber 25, tableware 26. Detailed Implementation
[0028] To make the objectives, technical solutions, and advantages of this utility model clearer, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Examples of these preferred embodiments are illustrated in the drawings. The embodiments of this utility model shown in and described with reference to the drawings are merely exemplary, and this utility model is not limited to these embodiments.
[0029] To avoid obscuring the present invention with unnecessary details, only the structures and / or processing steps closely related to the solution according to the present invention are shown in the accompanying drawings, while other details that are not of great importance are omitted.
[0030] like Figure 1 and Figure 2 As shown, this embodiment of the utility model provides a food packaging bag, which includes an inner bag 1 and an outer self-sealing bag 2.
[0031] The inner bag 1 is sealed and used to contain liquid food.
[0032] The outer self-sealing bag 2 includes a bag body 21 with an opening at the top and side sealing edges 22 located on both sides of the bag body 21. The bag body 21 is transparent, and a raised and recessed zipper strip 23 is provided below the opening of the bag body 21 for closing the opening of the bag body 21.
[0033] An elastic sleeve 24 is provided between the two side seals 22 of the bag body 21. The two ends of the elastic sleeve 24 are respectively connected to the two side seals 22. The elastic sleeve 24 is fitted around the outer periphery of the inner bag 1 to press and fix the inner bag 1.
[0034] Based on the above-mentioned food packaging bag design, by inserting the inner bag 1 into the bag body 21 through the opening of the outer self-sealing bag 2, and tightening it with the elastic sleeve 24 between the two side seals 22, when the inner bag 1 is damaged and leaks, under the pressure of the elastic sleeve 24, some of the liquid food will be squeezed out of the inner bag 1. Since the outer self-sealing bag 2 is transparent, it is easy to observe the liquid that has been squeezed out of the inner bag 1 and remains in the outer self-sealing bag 2, thereby timely detection of liquid food leakage and prevention of accidental ingestion and health problems. The liquid that is squeezed out of the inner bag remains in the outer self-sealing bag and will not leak into the external environment, making it easy to clean.
[0035] Furthermore, since the inner bag 1 can be tightly secured to the middle area of the outer self-sealing bag 2 by the elastic strap 24, it is less prone to damage and is relatively safer, effectively improving the packaging's protective effect on food. In this embodiment, the bag body 21 also contains tableware 26, allowing the tableware 26 to be sealed together for easy consumption by consumers. Tableware such as spoons and chopsticks 26 are placed together with the elastic strap 24, which then secures the tableware 26 to the elastic strap 24.
[0036] Furthermore, the bottom of the outer self-sealing bag 21 contains a test strip packet. Since liquid foods generally have acidity or alkalinity, the test strip packet will show color after contact with the leaked liquid, making it easier for consumers to detect leakage in the inner bag 1. Because of the inner and outer composite bag design, the test strip packet at the bottom of the bag 21 is isolated from the inner bag 1. Therefore, sealing the food in the inner bag 1 before placing the test strip packet into the outer self-sealing bag 2 will not affect food hygiene.
[0037] To prevent liquid leaking from the inner bag 1 from spreading and contaminating the external environment when the outer self-sealing bag 2 is opened, the bottom of the outer self-sealing bag 21 is provided with a bottom test strip chamber 25 sealed by a one-way permeation membrane. Liquid can only enter the bottom test strip chamber 25 from the outside of the one-way permeation membrane and cannot overflow from the bottom test strip chamber 25 through the one-way permeation membrane. The test strip pack is contained in the bottom test strip chamber 25. After the liquid flows into the bottom test strip chamber 25 under the action of gravity, it will be temporarily stored, which can also isolate the test strip pack and the inner bag 1, making it safer.
[0038] For example, the inner bag 1 is an aluminum foil bag. Aluminum foil bags have high strength, good sealing performance, and are not easy to break. If leakage occurs, the liquid will be more noticeable on the opaque aluminum foil.
[0039] The inner bag 1 has easy-tear openings 10 on both sides, which makes it easy for users to tear open the inner bag 1 and pour out the food.
[0040] For example, there are two convex and concave zipper strips 23, which are arranged in parallel to achieve a double sealing effect.
[0041] To reduce the difficulty of cleaning up leaked liquid after opening the outer self-sealing bag 2, the bottom of the bag body 21 of the outer self-sealing bag 2 is provided with absorbent cotton strips, which absorb the liquid and further prevent the liquid from flowing around.
[0042] For example, the elastic sleeve 24 is a TPU thermoplastic elastomer sleeve. TPU thermoplastic elastomer can be used in the bag making industry and can be made using common bag making equipment and processes. It is easy to fix the elastic sleeve 24 to the two side seals 22 of the bag body 21 by heat sealing. It has excellent comprehensive properties such as high strength, high toughness, wear resistance, and oil resistance. It has good processing performance and is suitable for food packaging bags.
[0043] In this embodiment, there are two or more elastic straps 24, which are arranged in parallel to each other and placed between the opening and the bottom of the bag body 21.
[0044] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.
[0045] The above description is only a specific embodiment of this application. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this application, and these improvements and modifications should also be considered within the scope of protection of this application.
Claims
1. A food packaging bag, characterized by, The utility model relates to a self-sealing bag for liquid food, comprising: an inner bag (1) which is sealed and arranged to contain liquid food; an outer self-sealing bag (2) comprising a bag body (21) with an upper opening and side seals (22) on both sides of the bag body (21), the bag body (21) being transparent, and a concave-convex zipper (23) being arranged below the opening of the bag body (21) to close the opening of the bag body (21); wherein an elastic sleeve (24) is arranged between the two side seals (22) of the bag body (21), the two ends of the elastic sleeve (24) being correspondingly connected to the two side seals (22) respectively, and the elastic sleeve (24) being sleeved on the outer periphery of the inner bag (1) to compress and fix the inner bag (1).
2. The food packaging bag of claim 1, wherein, The bag body (21) of the outer self-sealing bag (2) is provided with a test paper bag at the bottom.
3. The food packaging bag of claim 2, wherein, The bag body (21) of the outer self-sealing bag (2) is provided with a bottom test paper chamber (25) closed by a one-way permeable membrane at the bottom, and the test paper bag is contained in the bottom test paper chamber (25).
4. The food packaging bag of claim 1, wherein The inner bag (1) is an aluminum foil bag.
5. The food packaging bag of claim 1, wherein Easy-to-tear openings (10) are arranged on both side edges of the inner bag (1).
6. The food packaging bag of claim 1, wherein The number of the concave-convex zippers (23) is two, and the two concave-convex zippers (23) are arranged in parallel.
7. The food packaging bag of claim 1, wherein The bag body (21) of the outer self-sealing bag (2) is provided with a liquid-absorbing cotton strip at the bottom.
8. The food packaging bag of claim 1, wherein The elastic sleeve (24) is a TPU thermoplastic elastomer sleeve.
9. The food packaging bag of claim 1, wherein The number of the elastic sleeves (24) is two or more, and the two or more elastic sleeves (24) are arranged in parallel and side by side between the opening and the bottom of the bag body (21).