Food packaging bag with built-in drying agent
By designing a desiccant cover and a limit cylinder fitting and breathable through-hole design in the food packaging bag, the problem of accidentally ingesting and recycling of desiccant is solved, and the separation of desiccant and food is achieved, ensuring packaging integrity and easy recycling.
Patent Information
- Application Number
- CN202422037567.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-22
- Publication Date
- 2025-08-01
- Estimated Expiration
- 2034-08-22
AI Technical Summary
The desiccant in existing food packaging bags is easily eaten by mistake, confused with food seasonings, and difficult to recycle after failure, resulting in waste of resources and environmental pollution.
A food packaging bag with built-in desiccant is designed, which is fixed with a desiccant cover and a limit cylinder and a fixed flange. It has a breathable through-hole design. A desiccant is built-in to the space under the desiccant cover. The food loading tray is shielded from the desiccant. The desiccant can be removed and removed when it fails.
Avoid direct contact between desiccant and food, prevent accidental consumption, maintain packaging integrity, facilitate recycling and separation of failed desiccants, and reduce resource waste and pollution.
Smart Images

Figure CN223174768U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of packaging, in particular to a food packaging bag with a built-in desiccant. Background Art
[0002] In daily life, people often use food packaging bags to hold and protect food, which needs to be isolated from air and moisture to extend the shelf life of the food. Therefore, food packaging bags for foods such as dried fruits, seaweed, melon seeds, peanuts, and puffed foods are built with desiccant to absorb water vapor in the bag to prevent the humidity in the bag from being too high and causing bacteria to grow in the food in the bag.
[0003] Although desiccants are often packaged in protective packaging like paper or non-woven fabric, there are still cases of young children and the elderly accidentally ingesting desiccants. This is especially true in some food packaging where desiccant packets are mixed directly with the food, making them easily confused with common food seasoning packets. This can also lead to the desiccant packaging being accidentally damaged, causing the desiccant to enter the food. Furthermore, if the desiccant is attached to the inner wall of the bag, such as by gluing it, making it impossible to remove, the desiccant is no longer recyclable. The food packaging containing the desiccant is difficult to separate and recycle, resulting in a waste of resources and a reduction in recycling efficiency. Furthermore, when the desiccant packet is removed, the protective packaging can easily break, causing contamination. Utility Model Content
[0004] In view of this, the purpose of the present invention is to provide a food packaging bag with a built-in desiccant to solve the above problems.
[0005] In order to achieve the above-mentioned purpose, the present invention adopts the following technical solutions:
[0006] The utility model provides a food packaging bag with a built-in desiccant, which comprises a bag body, a desiccant sealing cover and a food holding tray.
[0007] The bag body includes two bag surfaces, the edges of which fit together to form an inner bag chamber within the bag body. A limiting cylinder and a fixed flange are provided on the inner wall of one of the bag surfaces. The edges of the desiccant cover extend downward to form a packaging frame. The packaging frame is provided with slots that engage with the limiting cylinder and the fixed flange, so that the desiccant cover is buckled against the inner wall of the bag surface, forming a storage space between the desiccant cover and the bag body within the packaging frame. The storage space is used to accommodate a desiccant package. The fixed flange forms a boundary that limits the desiccant package from escaping from the storage space. The surface of the desiccant cover is provided with multiple ventilation holes. The food receiving tray is accommodated in the inner bag chamber. The bottom of the food receiving tray forms a clearance groove for the desiccant cover, so that the food receiving tray can be stacked on top of the desiccant cover.
[0008] Preferably, the fixing flange and the packaging frame are rectangular structures, and the number of the limiting cylinders is four, and the four limiting cylinders are respectively arranged beside the four corners of the fixing flange.
[0009] Preferably, the limiting cylinder and the fixing flange are fixed to the inner wall of the bag surface by hot-melt fixing or adhesive bonding.
[0010] Preferably, a plurality of the ventilation holes are arranged in an array on the surface of the desiccant cover.
[0011] Preferably, the edge of the food receiving tray forms a retaining wall inclined upward, the yield groove of the food receiving tray bulges upward, and the front and rear sides form inclined surfaces, so that the central area of the food receiving tray is suspended.
[0012] Preferably, the bag surface is a composite film material layer including polyethylene, nylon and an aluminum film layer, and the surface of the desiccant cover is covered with an aluminum film layer made of the same material as the inner wall of the bag surface.
[0013] Preferably, the bag body is provided with tear-away openings on the front and rear sides, and the food receiving tray is provided with pull tabs extending from the front and rear ends thereof.
[0014] The technical effects achieved by the technical solution of this utility model mainly include:
[0015] In the above-mentioned food packaging bag with built-in desiccant, the desiccant cover is fixedly mounted on the inner wall of the bag surface by buckling it. The surface of the desiccant cover is provided with multiple ventilation holes, so that the internal desiccant bag can only circulate through other spaces in the bag cavity, without affecting the desiccant bag's ability to absorb moisture from the gas in the bag. At the same time, the desiccant bag is encapsulated under the desiccant cover, preventing the desiccant bag from directly contacting the food in the bag cavity. It is also shielded by the desiccant cover and the food receiving tray above. The desiccant bag is not easily seen by people such as young children and the elderly, and is not easily confused with directly mixed food and seasoning bags, thus preventing accidental ingestion.
[0016] The desiccant pack is sealed and not easily damaged or leaked. At the same time, since the packaging frame of the desiccant cover is connected to the limiting cylinder and the fixed flange in a detachable manner through interlocking, it not only ensures the stability of the packaging of the desiccant pack, but also allows the quick removal of expired desiccant packs during recycling for subsequent centralized processing, while other recyclable resources of the food packaging bag can be smoothly recycled. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 This is a structural schematic diagram of a food packaging bag with a built-in desiccant provided by the present invention;
[0018] Figure 2 A structural breakdown diagram of the food packaging bag;
[0019] Figure 3 A schematic diagram of the distribution of the limiting cylinder and the fixing flange in the bag body of the food packaging bag;
[0020] Figure 4 It is a structural schematic diagram of the desiccant sealing cover of the food packaging bag;
[0021] Figure 5 It is a structural schematic diagram of the food holding tray of the food packaging bag.
[0022] The reference numerals in the above drawings are:
[0023] Bag body 1, bag inner chamber 10, bag surface 11, limiting cylinder 12, fixing flange 13, easy tearing notch 140;
[0024] Desiccant cover 2, slot 201, storage space 202, ventilation hole 203, packaging frame 21;
[0025] Food holding tray 3, clearance groove 30, retaining wall 31, pull tab 32;
[0026] Desiccant pack 4. DETAILED DESCRIPTION
[0027] To make the objectives, technical solutions, and advantages of the present invention more apparent, specific embodiments of the present invention are described in detail below with reference to the accompanying drawings. Examples of these preferred embodiments are illustrated in the accompanying drawings. The embodiments of the present invention shown in and described with reference to the accompanying drawings are merely exemplary, and the present invention is not limited to these embodiments.
[0028] It should also be noted that, in order to avoid obscuring the present invention due to unnecessary details, the accompanying drawings only show structures and / or processing steps closely related to the solutions according to the present invention, while other details that are not very relevant are omitted.
[0029] The present invention provides a food packaging bag with a built-in desiccant. Figure 1 and Figure 2 As shown, it includes a bag body 1, a desiccant cover 2 and a food receiving tray 3.
[0030] Combine Figures 1 to 3 As shown, the bag body 1 includes two bag surfaces 11, and the edges of the two bag surfaces 11 are attached to each other to form a bag inner chamber 10 inside the bag body 1, and a limiting cylinder 12 and a fixing flange 13 are provided on the inner wall of one of the bag surfaces 11;
[0031] Combine Figure 1 、Figure 2 as well as Figure 4 As shown, the edges of the desiccant cover 2 extend downward to form a packaging frame 21. The packaging frame 21 is provided with a slot 201 that engages with the limiting cylinder 12 and the fixing flange 13, so that the desiccant cover 2 is buckled on the inner wall of the bag surface 11, and a storage gap 202 is formed between the desiccant cover 2 and the bag body 1 in the packaging frame 21. The storage gap 202 in the desiccant cover 2 is used to accommodate the desiccant bag 4. The fixing flange 13 encloses a boundary that limits the desiccant bag 4 from escaping from the storage gap 202. The surface of the desiccant cover 2 is provided with a plurality of ventilation holes 203.
[0032] Combine Figure 1 、 Figure 2 as well as Figure 5 As shown, the food receiving tray 3 is accommodated in the bag inner chamber 10, and a recess 30 is formed at the bottom of the food receiving tray 3 for accommodating the desiccant cover 2, so that the food receiving tray 3 can be stacked on top of the desiccant cover 2 and shield the desiccant cover 2, that is, the projected area of the food receiving tray 3 on the bag surface 11 is larger than the projected area of the desiccant cover 2 on the bag surface 11.
[0033] The above-mentioned food packaging bag with built-in desiccant places the desiccant bag 4 in the storage space 202 formed under the packaging frame 21 for packaging and storage. The desiccant bag 4 only circulates with the other spaces in the bag chamber 10 through the ventilation holes 203 on the surface of the desiccant cover 2. This does not affect the desiccant bag 4's ability to absorb moisture from the gas in the bag, and prevents the desiccant bag 4 from directly contacting the food in the bag chamber 10. The desiccant bag 4 is shielded by the food receiving tray 3 and the desiccant cover 2 above it, making it difficult to be confused with directly mixed food and seasoning bags, and it is also difficult to accidentally damage the protective packaging of the desiccant bag. This can effectively prevent young children and the elderly from accidentally ingesting the mixed desiccant bags. Moreover, since the packaging frame 21 of the desiccant cover 2 is connected to the limiting cylinder 12 and the fixing flange 13 in a detachable manner through interlocking, when the food packaging bag needs to be recycled, after taking out the food receiving tray 3 from the bag chamber 10, it is only necessary to lift up the desiccant cover 2, that is, to release the cooperation with the limiting cylinder 12 and the fixing flange 13, and then the desiccant bag 4 can be removed, thereby realizing simple separation of the spent desiccant, facilitating the recovery of other recyclable resources of the food packaging bag, and facilitating the centralized treatment of the spent desiccant.
[0034] In this embodiment, the fixed flange 13 and the encapsulation frame 21 are in a rectangular structure. The rectangular structure formed by the fixed flange 13 and the encapsulation frame 21 encloses and restricts the movement of the desiccant packet 4 in the horizontal direction. Together with the desiccant cover 2 body covering the upper part of the desiccant packet 4, it ensures that the desiccant packet 4 will not protrude outside the storage gap 202. The number of the limiting cylinders 12 is four, and the four limiting cylinders 12 are respectively arranged beside the four corners of the fixed flange 13. The limiting cylinders 12 play a role in guiding the installation of the desiccant cover 2 and are regularly arranged beside the four corners, which is convenient for quickly determining the orientation of installing the desiccant cover 2 during installation.
[0035] Since it is considered to recycle the food packaging bag, the limiting cylinders 12 and the fixed flange 13 fixed on the bag surface 11 should be made of a material similar to that of the bag surface 11. Therefore, according to the selected material, the limiting cylinders 12 and the fixed flange 13 are fixed on the inner wall of the bag surface 11 by hot melting or adhesive pasting.
[0036] To ensure that the desiccant packet 4 can effectively communicate with other spaces in the bag inner cavity 10 through the air permeable holes 203 on the surface of the desiccant cover 2, the air permeable holes 203 should be as many and dense as possible. To make full and effective use of the surface space of the desiccant cover 2, multiple air permeable holes 203 are arranged in an array on the surface of the desiccant cover 2.
[0037] The food placement tray 3 needs to block the desiccant cover 2 and leave a certain gap for the air permeable holes 203 to keep them unobstructed. Specifically, the edge of the food placement tray 3 forms an upwardly inclined retaining wall 31, so that the food placed on the food placement tray 3 is not easily spilled when the food placement tray 3 is pulled out of the bag. The relief groove 30 of the food placement tray 3 bulges upward, and the front and rear sides form a slope shape, making the central area of the food placement tray 3 suspended. The slopes formed on the front and rear sides of the relief groove 30 facilitate the smooth extraction process of the food placement tray 3 and are not easily blocked by the desiccant cover 2. The food placement tray 3 is higher than the height of the air permeable holes 203 on the bag surface 11.
[0038] Easy tear openings 140 are provided on the front and rear sides of the bag body 1. Further, to facilitate the extraction of the food placement tray 3, the food placement tray 3 extends correspondingly at the front and rear ends to form a pull tab 31 protruding outside the food placement tray 3.
[0039] Food packaging bags are used to contain and protect food. They need to isolate air and moisture, so generally high-barrier materials are selected. The bag surface 11 is a composite film material layer including polyethylene, nylon, and an aluminum film layer. The aluminum film layer can prevent food from oxidizing and spoiling, avoid polluting the environment, and at the same time maintain the freshness and taste of food. Nylon is heat-resistant, puncture-resistant, has good oxygen barrier performance, and does not contain harmful ingredients, and is often used for storing dry food. Further, to make the desiccant cover 2 adapt to the bag surface 11 and not be easily found and taken out, the surface of the desiccant cover 2 is covered with an aluminum film layer having the same material as the inner wall of the bag surface 11. Warning patterns and words should be set on the desiccant package 4.
[0040] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "including a..." does not exclude the existence of additional identical elements in the process, method, article or device including the said element.
[0041] The above are only the specific implementation manners of this application. It should be pointed out that for those of ordinary skill in the art in this technical field, without departing from the principle of this application, several improvements and refinements can be made, and these improvements and refinements should also be regarded as the protection scope of this application.
Claims
1. A food packaging bag with an in-built desiccant, characterized in that, It includes: A bag body (1), the bag body (1) comprising two bag surfaces (11), the edges of the two bag surfaces (11) being attached to each other to form an inner bag chamber (10) inside the bag body (1), wherein a limiting cylinder (12) and a fixing flange (13) are provided on the inner wall of one of the bag surfaces (11); A desiccant sealing cover (2), wherein the edges of the desiccant sealing cover (2) extend downward to form a packaging frame (21), and a slot (201) is provided on the packaging frame (21) and is engaged with the limiting cylinder (12) and the fixed flange (13), so that the desiccant sealing cover (2) is buckled on the inner wall of the bag surface (11), and a storage space (202) is formed between the desiccant sealing cover (2) and the bag body (1) in the packaging frame (21), and the storage space (202) is used to accommodate the desiccant bag (4), and the fixed flange (13) encloses a boundary to limit the desiccant bag (4) from escaping from the storage space (202). A plurality of ventilation holes (203) are provided on the surface of the desiccant sealing cover (2); A food receiving tray (3) is contained in the bag inner chamber (10), and a recess (30) is formed at the bottom of the food receiving tray (3) for accommodating the desiccant cover (2), so that the food receiving tray (3) can be stacked on top of the desiccant cover (2).
2. The food packaging bag with an in-built desiccant according to claim 1, characterized in that, The fixing flange (13) and the packaging frame (21) are rectangular structures. The number of the limiting cylinders (12) is four, and the four limiting cylinders (12) are respectively arranged at the four corners of the fixing flange (13).
3. The food packaging bag with an in-built desiccant according to claim 1, characterized in that, The limiting cylinder (12) and the fixing flange (13) are fixed on the inner wall of the bag surface (11) by hot-melt fixing or adhesive bonding.
4. The food packaging bag with an in-built desiccant according to claim 1, characterized in that, The plurality of ventilation holes (203) are arranged in an array on the surface of the desiccant cover (2).
5. The food packaging bag with an in-built desiccant according to claim 1, wherein, The edge of the food receiving tray (3) forms a retaining wall (31) inclined upward, and the clearance groove (30) of the food receiving tray (3) is raised upward, with the front and rear sides forming an inclined surface, so that the central area of the food receiving tray (3) is suspended in the air.
6. The food packaging bag with an in-built desiccant according to claim 1, characterized in that, The bag body (1) is provided with easy-tear openings (140) on the front and rear sides, and the food receiving tray (3) is provided with pull tabs (32) extending from the food receiving tray (3) at the front and rear ends.