Multi-layer food packaging bag
By designing multi-layer food packaging bags, using the combination of insulation cotton layer and fork rods, the problem of frozen food being easily affected by the odor of other items when stored in the refrigerator is solved, and better food insulation and sealing effects are achieved.
Patent Information
- Application Number
- CN202422079176.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-27
- Publication Date
- 2025-05-27
- Estimated Expiration
- 2034-08-27
AI Technical Summary
In the prior art, the packaging bags of frozen food are mostly disposable. After use, the remaining food is easily affected by the odor of other items, resulting in the food being odor.
A multi-layer food packaging bag is designed, including a thermal insulation cotton layer bonded between the inner packaging bag and the outer packaging bag. A fork rod is arranged on the outside of the outer packaging bag, and several airbag cylinders are fixedly connected to the surface of the outer packaging bag.
Through the multi-layer packaging structure, the insulation and sealing effect of food is improved, the odor of other items is avoided on frozen food, and the storage period of food is extended.
Smart Images

Figure CN222906317U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of food packaging bags, in particular to a multi-layer food packaging bag. Background Art
[0002] Common materials for food packaging bags include plastics, papers, aluminum foils, etc. These materials have their own advantages and disadvantages, and the appropriate material needs to be selected according to the characteristics of specific foods and packaging requirements. Food packaging bags need good sealing performance to prevent the freshness and hygiene of food from being affected. Common sealing methods include heat sealing, adhesion, etc.
[0003] In the existing related technologies, the following defects often exist: for frozen foods, consumers will purchase them from the market or by express delivery. The packaging bags for frozen foods are mostly disposable. When consumers use them, the consumption amounts of each consumer are different, and they may not take out all the foods inside the inner packaging bag at one time. There will be remaining foods still inside the inner packaging bag. Consumers will put the remaining frozen foods into the refrigerator for future use. There are other items inside the household refrigerator, and the smells of other items will affect the frozen foods. The longer the placement time, the easier it is for the frozen foods to produce strange smells.
[0004] Therefore, the utility model provides a multi-layer food packaging bag. Summary of the Utility Model
[0005] The purpose of the utility model is to solve the defect that the smells of other items will affect frozen foods in the existing technology, and to propose a multi-layer food packaging bag.
[0006] In order to achieve the above purpose, the utility model adopts the following technical scheme: a multi-layer food packaging bag, including an inner packaging bag and an outer packaging bag. A heat-insulating cotton layer is adhesively bonded between the inner packaging bag and the outer packaging bag. The outer packaging bag is located outside the heat-insulating cotton layer. A fork rod is arranged on the outside of the outer packaging bag.
[0007] The effects achieved by the above components are as follows: The multi-layer packaging bag structure is set, which not only facilitates the heat preservation work after taking out the refrigerated food, but also facilitates the sealing work when storing the food again after tearing the bag mouth of the packaging bag, avoiding the smells of other items from affecting the frozen foods, and improving the storage effect of the foods to a certain extent.
[0008] Preferably, the fork rod is of a "U" shape structure.
[0009] The effects achieved by the above components are as follows: By setting the heat-insulating cotton layer, the tightness of the sealing position after pressing the product inside the inner packaging bag with the fork rod is improved.
[0010] Preferably, a plurality of airbag cylinders are fixedly connected to the surface of the outer packaging bag, and the airbag cylinders are in a cylindrical structure.
[0011] The effects achieved by the above components are as follows: By setting the airbag cylinders, not only the limiting work of the fork rod is realized, but also when the inner packaging bag falls from a high place, the airbag cylinders can achieve the anti-drop effect on the food inside the inner packaging bag.
[0012] Preferably, the outer diameter dimension of the fork rod is adapted to the inner dimension of the airbag cylinder.
[0013] The effects achieved by the above components are as follows: Inserting the fork rod into the inner sides of the corresponding two airbag cylinders can improve the tightness of the fork rod in closing the food packaging bag.
[0014] Preferably, a connecting rope is fixedly connected between the fork rod and the outer packaging bag.
[0015] The effects achieved by the above components are as follows: By setting the connecting rope, the phenomenon of the fork rod being lost during use is effectively avoided.
[0016] Preferably, an auxiliary head is fixedly connected to the end side of the fork rod, and the auxiliary head is in a frustum shape.
[0017] The effects achieved by the above components are as follows: The frustum-shaped auxiliary head improves the efficiency of the fork rod inserted into the inner side of the corresponding airbag cylinder.
[0018] Preferably, a support piece is fixedly connected to the port position of the airbag cylinder, and the support piece is in an annular structure.
[0019] The effects achieved by the above components are as follows: By setting the support piece, the support effect on the port position of the airbag cylinder can be improved.
[0020] In summary:
[0021] In the present utility model, before storing the food inside the inner packaging bag, according to the amount of food inside the inner packaging bag, the fork rod is inserted into the appropriate position outside the outer packaging bag. By setting the heat-insulating cotton layer, the tightness of the sealing position after pressing the product inside the inner packaging bag with the fork rod is improved, and the heat-insulating effect on the product after the inner packaging bag is taken out is effectively avoided. By setting the above structures and multiple-layer packaging bag structures, it is not only convenient for the heat preservation work after taking out the refrigerated food, but also convenient for the sealing work when storing the food again after tearing the bag mouth of the packaging bag, avoiding the influence of the smell of other items on the frozen food, and improving the storage effect of the food to a certain extent. BRIEF DESCRIPTION OF THE DRAWINGS
[0022] Figure 1 is a three-dimensional structural schematic diagram of the present utility model;
[0023] Figure 2 is the enlarged view of part A in the present utility model; Figure 1
[0024] Figure 3 is the enlarged view of part B in the present utility model; Figure 1
[0025] Figure 4 is the structural schematic diagram of the airbag cylinder in the present utility model;
[0026] Figure 5 is the enlarged view of part C in the present utility model; Figure 4
[0027] Legend: 1. Inner packaging bag; 2. Outer packaging bag; 3. Thermal insulation cotton layer; 4. Connecting rope; 5. Fork rod; 6. Airbag cylinder; 7. Auxiliary head; 8. Support piece. Specific embodiments
[0028] Referring to Figures 1-5 as shown, the present utility model provides a technical solution: a multi-layer food packaging bag, including an inner packaging bag 1 and an outer packaging bag 2.
[0029] The following specifically describes its overall specific settings and functions.
[0030] In this embodiment: A thermal insulation cotton layer 3 is adhesively bonded between the inner packaging bag 1 and the outer packaging bag 2, the outer packaging bag 2 is located outside the thermal insulation cotton layer 3, and a fork rod 5 is arranged on the outside of the outer packaging bag 2. The multi-layer packaging bag structure not only facilitates the heat preservation work after taking out the refrigerated food, but also facilitates the sealing work when storing the food again after tearing the bag opening of the packaging bag, avoiding the influence of the smell of other items on the frozen food, and improving the storage effect of the food to a certain extent. The fork rod 5 is in a "U" shape. By setting the thermal insulation cotton layer 3, the tightness of the sealing position after pressing the product inside the inner packaging bag 1 with the fork rod 5 is improved. A plurality of airbag cylinders 6 are fixedly connected to the surface of the outer packaging bag 2, and the airbag cylinder 6 is in a cylindrical structure. By setting the airbag cylinder 6, not only the limiting work of the fork rod 5 is realized, but also when the inner packaging bag 1 falls from a high place, the airbag cylinder 6 can achieve the anti-drop effect on the food inside the inner packaging bag 1.
[0031] Specifically, the outer diameter dimension of the fork rod 5 is adapted to the inner dimension of the airbag cylinder 6. Inserting the fork rod 5 into the inner sides of the corresponding two airbag cylinders 6 can improve the tightness of the fork rod 5 in sealing the food packaging bag. A connecting rope 4 is fixedly connected between the fork rod 5 and the outer packaging bag 2. By providing the connecting rope 4, the phenomenon of the fork rod 5 being lost during use is effectively avoided. An auxiliary head 7 is fixedly connected to the end side of the fork rod 5, and the auxiliary head 7 is in a frustum shape. The frustum-shaped auxiliary head 7 improves the efficiency of the fork rod 5 in inserting into the inner side of the corresponding airbag cylinder 6. A support piece 8 is fixedly connected to the port position of the airbag cylinder 6, and the support piece 8 is in an annular shape. By providing the support piece 8, the support effect on the port position of the airbag cylinder 6 can be improved.
[0032] Working principle: Before storing the food inside the inner packaging bag 1, according to the amount of food inside the inner packaging bag 1, insert the fork rod 5 into a suitable position on the outside of the outer packaging bag 2. By providing the heat-insulating cotton layer 3, the tightness of the sealing position after pressing the product inside the inner packaging bag 1 with the fork rod 5 is improved, and the heat preservation effect on the product after the inner packaging bag 1 is taken out is effectively avoided. Insert the fork rod 5 into the inner sides of the corresponding two airbag cylinders 6. Among them, the frustum-shaped auxiliary head 7 improves the efficiency of the fork rod 5 in inserting into the inner side of the corresponding airbag cylinder 6, and the tightness of the fork rod 5 in sealing the food packaging bag can be improved. By providing the support piece 8, the support effect on the port position of the airbag cylinder 6 can be improved, and further the effect of the fork rod 5 in inserting into the inner side of the airbag cylinder 6 is improved. By providing the airbag cylinder 6, not only the limiting work of the fork rod 5 is realized, but also when the inner packaging bag 1 falls from a height, the airbag cylinder 6 can achieve the anti-drop effect on the food inside the inner packaging bag 1. By providing the connecting rope 4, the phenomenon of the fork rod 5 being lost during use is effectively avoided, which facilitates the timely use of the fork rod 5. By providing the above structures and setting a multi-layer packaging bag structure, it is not only convenient for the heat preservation work after taking out the refrigerated food, but also convenient for the sealing work when storing the food again after tearing the bag mouth of the packaging bag, avoiding the influence of the smell of other items on the frozen food, and improving the storage effect of the food to a certain extent.
[0033] In the description of the present invention, it should be noted that unless otherwise clearly specified and limited, the terms "installation", "connection", and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.
Claims
1. A multi-layer food packaging bag, comprising an inner packaging bag (1) and an outer packaging bag (2), characterized in that: A heat-insulating cotton layer (3) is glued between the inner packaging bag (1) and the outer packaging bag (2), the outer packaging bag (2) is located outside the heat-insulating cotton layer (3), and a fork rod (5) is provided outside the outer packaging bag (2).
2. A multi-layer food packaging bag according to claim 1, characterized in that: The fork rod (5) is a "U"-shaped structure.
3. A multi-layer food packaging bag according to claim 1, characterized in that: A plurality of airbag tubes (6) are fixedly connected to the surface of the outer packaging bag (2), and the airbag tubes (6) are cylindrical structures.
4. A multi-layer food packaging bag according to claim 3, characterized in that: The outer diameter of the fork rod (5) is matched with the inner size of the airbag tube (6).
5. The multi-layer food packaging bag according to claim 1, characterized in that: A connecting rope (4) is fixedly connected between the fork rod (5) and the outer packaging bag (2).
6. A multi-layer food packaging bag according to claim 1, characterized in that: The end side of the fork rod (5) is fixedly connected with an auxiliary head (7), and the auxiliary head (7) is a truncated cone structure.
7. A multi-layer food packaging bag according to claim 3, characterized in that: A support sheet (8) is fixedly connected to the port position of the airbag tube (6), and the support sheet (8) is a circular ring structure.