Packaging bag
By introducing a waterproof layer, fill layer and adsorption layer into the packaging bag, the problem of the risk of accidentally consuming desiccant in food packaging bags is solved, and the dryness and safety of food are maintained and improved.
Patent Information
- Application Number
- CN202421764652.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-24
- Publication Date
- 2025-07-22
- Estimated Expiration
- 2034-07-24
AI Technical Summary
There is a risk of accidentally ingesting desiccant in existing food packaging bags, especially for children, and it cannot effectively maintain the dryness of the food.
A packaging bag structure is designed, including a waterproof layer, a fill layer and an adsorption layer. The adsorption layer is located in the center of the mesh layer. There are waterproof layers on both sides of the filling layer. The outer layer is a polyethylene film. The filling layer is paper and powder-like activated carbon particles. It is built into the mesh holes of the mesh layer. It is breathable to absorb moisture and prevent food from getting damp.
It realizes the risk of children taking desiccant by mistake while keeping food dry, enhances the moisture-proof function of packaging bags, and reduces the food breakage rate.
Smart Images

Figure CN223132817U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of food packaging bags, in particular to a packaging bag. Background Art
[0002] Food packaging bags refer to bags used to package various foods. They can be made of plastic, paper, aluminum foil or their composite materials. Their main function is to protect food, prevent contamination and oxidation, and extend the shelf life of food. Food packaging bags can also facilitate transportation, storage and carrying.
[0003] Notice that there is often a small bag inside the food bag with "Do not eat" written on it. This is a desiccant bag or moisture-proof bag. Its main function is to absorb moisture in the package to keep the food dry, prevent the food from getting damp and spoiling, and extend the shelf life of the food. Desiccant bags usually contain hygroscopic substances such as silica gel and montmorillonite. These desiccants will absorb and lock moisture when they encounter moisture, thereby maintaining a relatively dry environment in the closed food packaging environment. They cannot be eaten, especially by children who are curious and put them into the packaging bag with food, so there is a great risk of accidental ingestion. Utility Model Content
[0004] The purpose of this section is to summarize some aspects of the embodiments of the utility model and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the specification abstract and utility model name of this application to avoid blurring the purpose of this section, specification abstract and utility model name, and such simplifications or omissions cannot be used to limit the scope of the utility model.
[0005] In order to solve the above-mentioned problems, the utility model provides the following technical solutions: a packaging bag includes a bag body, which is composed of a waterproof layer, a filling layer, a mesh layer, and an adsorption layer, wherein the mesh layer is located in the central position and has an adsorption layer built in, and filling layers are provided on both sides of the mesh layer, and a waterproof layer is provided on each side of the filling layer, so that the waterproof layer constitutes the outermost layer of the bag body.
[0006] On the basis of the above technical solution, the present invention can also be improved as follows.
[0007] As a preferred solution of the packaging bag described in the utility model, the waterproof layer is a polyethylene film, the filling layer is paper, the mesh layer is a mesh fabric with holes, and the filling layer is powdered activated carbon particles, which are filled in the mesh holes of the mesh layer.
[0008] As a preferred solution of the packaging bag of the utility model, the wide side surface, the narrow side surface and the bottom surface of the bag body are all concave toward the bag body.
[0009] As a preferred solution of the packaging bag of the utility model, there is an arc edge between the adjacent wide side surfaces and the narrow side surfaces.
[0010] As a preferred solution of the packaging bag of the utility model, wherein: a folding concave strip is provided on the narrow side surface, and is located at the center of the narrow side surface.
[0011] As a preferred solution of the packaging bag of the utility model, a tear line located on the wide side is arranged on the waterproof layer on the inner side of the bag body.
[0012] The beneficial effects of the utility model are as follows: the outer layer of the bag body is a waterproof layer, which ensures moisture-proofness and keeps the interior dry. Before loading food, a part of the waterproof layer needs to be uncovered to expose the internal breathable filling layer. When food is loaded and used, the adsorption layer in the mesh layer acts as a desiccant or a moisture-proof bag, absorbing moisture to keep the food dry. The adsorption layer in the mesh layer is similar to a common desiccant or a moisture-proof bag. In this way, the drying function is cleverly integrated into the bag body, which not only protects the food, but also avoids the risk of children accidentally ingesting the desiccant or the moisture-proof bag. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following briefly introduces the drawings required for the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative labor. Among them:
[0014] Figure 1 It is a stereogram of the whole embodiment.
[0015] Figure 2 It is a cross-sectional view of this embodiment.
[0016] Figure 3 For this embodiment Figure 1 A partial diagram of .
[0017] Figure 4 It is a top view of the bag body packed in the present embodiment.
[0018] Figure 5 It is a schematic diagram of the structure of the bag body of this embodiment.
[0019] Figure 6 For this embodiment Figure 5 A partial diagram of .
[0020] In the figure; bag body 100, arc edge 100b;
[0021] Wide side 101, tear line 101a;
[0022] Narrow side 102, folded concave strip 102a;
[0023] Bottom 103;
[0024] Waterproof layer 100 - 1 , filling layer 100 - 2 , mesh layer 100 - 3 , adsorption layer 100 - 3 a , and gift box 200 . DETAILED DESCRIPTION
[0025] In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.
[0026] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.
[0027] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.
[0028] Reference Figures 1 to 6 , is an embodiment of the utility model, which provides a packaging bag, including a bag body 100, wherein the bag body 100 is composed of a waterproof layer 100-1, a filling layer 100-2, a mesh layer 100-3, and an adsorption layer 100-3a, wherein the mesh layer 100-3 is located in the central position and has an adsorption layer 100-3a built therein, and the filling layer 100-2 is provided on both sides of the mesh layer 100-3, and a waterproof layer 100-1 is provided on both sides of the filling layer, so that the waterproof layer 100-1 constitutes the outermost layer of the bag body 100;
[0029] Specifically, the outer layer of the bag body 100 is a waterproof layer 100-1, which prevents moisture from entering the bag body and keeps the bag body dry. Before putting food in the bag body, a portion of the waterproof layer 100-1 inside the bag body is torn open to expose the breathable filling layer 100-2. During the process of bagging and opening the food bag, the adsorption layer 100-3a inside the mesh layer 100-3 acts as a drying bag or a moisture-proof bag, wherein the composition of the adsorption layer 100-3a can refer to the drying bag or the moisture-proof bag. In this way, the drying bag or the moisture-proof bag is fully integrated with the bag body, the packaged food is dried, and the children can be prevented from accidentally eating the food due to the drying bag or the moisture-proof bag in the bag body.
[0030] Summary; The packaging bag 100 integrates a waterproof layer 100-1 to ensure that external moisture cannot penetrate and maintain a dry internal environment. Before loading food, the user needs to open the waterproof layer along the preset tear line 101a to expose the internal breathable filling layer 100-2 and the mesh layer 100-3 attached thereto. The mesh layer is embedded with an adsorption layer 100-3a, the composition of which is the same as that of common drying bags or moisture-proof bags, achieving the effect of continuous moisture absorption and freshness preservation. This not only strengthens the drying function of the packaging bag, but also prevents the possible problem of children accidentally ingesting through an internal setting;
[0031] As Figure 5 shown, the waterproof layer 100-1 is a polyethylene film, the filling layer 100-2 is paper, the mesh layer 100-3 is a perforated mesh fabric, and the filling layer 100-2 is powdery activated carbon particles and is filled in the mesh holes of the mesh layer 100-3;
[0032] Specifically; The packaging bag 100 uses a polyethylene film as the waterproof layer 100-1, providing a moisture-proof barrier. The filling layer 100-2 on its inner side is composed of paper, which is both environmentally friendly and has good support. Further, a layer of perforated mesh fabric, the mesh layer 100-3, is introduced to allow air circulation. At the same time, the inside is filled with powdery activated carbon particles, which are cleverly embedded in the mesh holes to form a built-in high-efficiency adsorption layer 100-3a. The adsorption performance of the activated carbon particles is similar to that of common drying bags, capable of continuously absorbing the moisture inside the package, keeping the food fresh and dry, and the activated carbon particles are non-toxic, harmless and inexpensive to produce;
[0033] As Figures 1 - 6 shown, the wide side 101, the narrow side 102 and the bottom surface 103 of the bag body 100 are all concave towards the bag body 100. There is an arc edge 100b between the adjacent wide side 101 and narrow side 102. A folding concave strip 102a is provided on the narrow side 102, located at the central position of the narrow side 102. On the inner side of the bag body 100, a tear line 101a is provided on the wide side 101 of the waterproof layer 100-1. The folding concave strip 102a facilitates the folding and storage of the bag body 100;
[0034] By using paper for the filling layer 100-2, the structural strength of the bag body 100 is increased. The setting that the sides and the bottom surface of the bag body 100 are concave can play a role in protecting and buffering the food when the bag body 100 is loaded into the gift box 200, and can well prevent the problem of food being broken during transportation and handling;
[0035] It is worth mentioning that; The packaging bag provides waterproof and moisture-proof functions with a polyethylene film, the paper filling layer increases the structural strength, the filling of activated carbon particles realizes moisture absorption and safety, and at the same time, the concave design of the wide and narrow sides and the bottom ensures buffering protection in the gift box, reducing the breakage rate of food during transportation.
[0036] Importantly, it should be noted that the construction and arrangement of the present application shown in multiple different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who refer to this disclosure should easily understand that many modifications are possible without materially departing from the novel teachings and advantages of the subject matter described in this application (e.g., changes in the dimensions, scales, structures, shapes and proportions of various elements, as well as parameter values (such as temperature, pressure, etc.), installation arrangements, use of materials, colors, orientations, etc.). For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of the element may be inverted or otherwise changed, and the nature, number or position of discrete elements may be altered or changed. Accordingly, all such modifications are intended to be included within the scope of the present utility model. The order or sequence of any process or method steps may be changed or reordered according to alternative embodiments. In the claims, any "means-plus-function" clause is intended to cover the structures that perform the recited function herein, and not only structural equivalents but also equivalent structures. Other substitutions, modifications, changes and omissions may be made in the design, operating conditions and arrangement of the exemplary embodiments without departing from the scope of the present utility model. Therefore, the present utility model is not limited to a particular embodiment, but extends to various modifications that still fall within the scope of the appended claims.
[0037] In addition, to provide a concise description of the exemplary embodiments, not all features of the actual embodiments may be described (i.e., those features that are not relevant to the currently contemplated best mode of carrying out the present utility model or those features that are not relevant to the implementation of the present utility model).
[0038] It should be understood that in the development of any actual implementation, as in any engineering or design project, numerous specific implementation decisions may be made. Such development efforts may be complex and time-consuming, but for those of ordinary skill in the art who benefit from this disclosure, without undue experimentation, such development efforts will be a routine task of design, manufacturing and production.
[0039] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present utility model and not to limit them. Although the present utility model has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present utility model may be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present utility model, and all of them should be covered within the scope of the claims of the present utility model.
Claims
1. A packaging bag, characterized in that: It includes a bag body (100), and the bag body (100) is composed of a waterproof layer (100-1), a filling layer (100-2), a mesh layer (100-3), and an adsorption layer (100-3a). Among them, the mesh layer (100-3) is located at the central position and has an adsorption layer (100-3a) built therein. Filling layers (100-2) are provided on both sides of the mesh layer (100-3). Each side of the filling layer has a waterproof layer (100-1). Thus, the waterproof layer (100-1) forms the outermost layer of the bag body (100).
2. The packaging bag according to claim 1, characterized in that: The waterproof layer (100-1) is a polyethylene film, the filling layer (100-2) is paper, the mesh layer (100-3) is a perforated gauze fabric, and the filling layer (100-2) is powdery activated carbon particles and is filled in the mesh holes of the mesh layer (100-3).
3. The packaging bag according to claim 1, wherein: The wide side (101), the narrow side (102), and the bottom surface (103) of the bag body (100) are all concave inward the bag body (100).
4. The packaging bag according to claim 3, wherein: There is an arc edge (100b) between the adjacent wide side (101) and narrow side (102).
5. The packaging bag according to claim 3, wherein: A folding concave strip (102a) is provided on the narrow side (102) and is located at the central position of the narrow side (102).
6. The packaging bag according to claim 3, characterized in that: On the inner side of the bag body (100), a tearing line (101a) is provided on the waterproof layer (100-1) and is located on the wide side (101).