Multi-layer composite food special-shaped bag
By designing a multi-layered composite structure and sealing components, the problems of easy breakage and difficult sealing of irregularly shaped food bags are solved, achieving excellent barrier properties and mechanical strength, ensuring food safety and convenient use.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NINGBO SHANGYOU INTERNATIONAL TRADE CO LTD
- Filing Date
- 2025-05-21
- Publication Date
- 2026-05-29
AI Technical Summary
Existing irregularly shaped food bags are mostly single-layer or double-layer structures with limited barrier performance. They are easily torn by foreign objects, leading to food leakage, and are difficult to seal effectively during use.
It adopts a multi-layer composite structure, including a reinforcing layer, a barrier layer and an inner layer. The reinforcing layer is made of nylon, the barrier layer is made of aluminum foil, and the inner layer is made of polyethylene. Combined with the sealing component and thickened plate design, it enhances the mechanical strength and barrier properties of the bag, and achieves convenient sealing and carrying through the sealing component.
It improves the barrier properties and mechanical strength of the bag, prevents damage, ensures food safety, reduces the entry of dust and impurities, and enhances ease of use and hygiene.
Smart Images
Figure CN224297818U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of food bag technology, specifically to multi-layer composite irregular-shaped food bags. Background Technology
[0002] Food packaging bags are a form of packaging used to wrap food to protect it from external environmental factors such as pollution, moisture, oxygen, and light, and to extend its shelf life. Irregularly shaped food bags refer to packaging bags with irregular shapes and unique designs. They break through the limitations of traditional square or rectangular packaging and can be customized into various attractive shapes according to product characteristics or brand needs. However, most existing irregularly shaped food bags have a single-layer or double-layer structure, which results in limited barrier performance and makes them easy to be torn by foreign objects during use, leading to food leakage inside the irregularly shaped food bags. Utility Model Content
[0003] The present invention aims to address the shortcomings of the prior art by providing a multi-layer composite food irregular-shaped bag. Through the design of the composite components, the bag body can have excellent barrier properties and mechanical strength, preventing damage to the bag body during use and thus preventing food leakage. The sealing components facilitate the sealing and carrying of the bag body and reduce the occurrence of dust falling into the bag opening.
[0004] To achieve the above objectives, this utility model provides the following technical solution: a multi-layer composite irregular-shaped food bag, comprising:
[0005] The bag body has a covering cloth attached to one side of the top and a thickened plate attached to the bottom.
[0006] A sealing assembly is provided at the top of the bag body, the sealing assembly comprising: a sealing strip, a sealing strip, a first pull cord, and a second pull cord; and
[0007] A composite component disposed inside the bag body, the composite component comprising: a reinforcing layer, a barrier layer, and an inner layer.
[0008] Furthermore, the bag body has a printed layer on its surface, a reinforcing layer inside the bag body, a barrier layer inside the reinforcing layer, and an inner layer inside the barrier layer.
[0009] Furthermore, the reinforcing layer is made of nylon material.
[0010] Furthermore, the barrier layer is made of aluminum foil.
[0011] Furthermore, the inner layer is made of polyethylene material.
[0012] Furthermore, the inner layer has two sealing strips connected to its inner side, each of which is connected to a sealing strip, and the sealing strip is a pressure-sensitive adhesive strip.
[0013] Furthermore, two symmetrically arranged through holes are opened on one side of the bag body, and a first pull rope is inserted through the through holes, with both ends of the first pull rope connected to the inner layer. An opening is opened on the other side of the bag body, and a second pull rope is inserted through the opening, with both ends of the second pull rope connected to the inner layer.
[0014] Furthermore, a fleece layer is connected to one side of the bag body, and a bristle layer is provided on one side of the covering fabric, with the fleece layer and the bristle layer corresponding in position.
[0015] The advantages of this invention are that the composite components enable the bag to have excellent barrier properties and mechanical strength, preventing damage during use and thus food leakage. The sealing components facilitate sealing, making it easy for users to open and reseal the bag, enhancing convenience and hygiene. At the same time, it effectively reduces dust and impurities from the external environment from falling into the bag opening, preventing food contamination and further ensuring consumer safety. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model.
[0017] Figure 2 This is a cross-sectional view of the overall structure of this utility model.
[0018] Figure 3 This is a half-sectional view of the overall structure of this utility model.
[0019] Figure 4 This is a schematic diagram of the sealing strip structure of this utility model.
[0020] Figure 5 For the present utility model Figure 2 Enlarged view of point A in the image.
[0021] Figure 1-5 In the middle: 1. Bag body; 101. Reinforcing layer; 102. Barrier layer; 103. Inner layer; 104. Thickened plate; 2. Sealing strip; 201. Sealing strip; 3. Through hole; 301. First pull rope; 4. Opening; 401. Second pull rope; 5. Covering cloth; 501. Bristle layer; 502. Fleece layer. Detailed Implementation
[0022] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.
[0023] The following disclosure provides many different embodiments or examples for implementing different structures of this application. To simplify the disclosure, specific examples of components and arrangements are described below. Of course, these are merely examples and are not intended to limit the scope of this application. Furthermore, reference numerals and / or letters may be repeated in different examples; such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed. In addition, various specific examples of processes and materials are provided in this application, but those skilled in the art will recognize the application of other processes and / or the use of other materials.
[0024] This application provides a multi-layer composite food irregular-shaped bag, which will be described in detail below. It should be noted that the order of description of the following embodiments is not intended to limit the preferred order of the embodiments.
[0025] The present application will now be described in detail with reference to the accompanying drawings and specific embodiments. Example 1
[0026] Please see Figure 1-5 In this embodiment, a multi-layer composite food irregular-shaped bag is provided, including: a bag body 1, a covering cloth 5 connected to one side of the top of the bag body 1, and a thickened plate 104 connected to the bottom of the bag body 1; a sealing assembly disposed at the top of the bag body 1, the sealing assembly including: a sealing strip 2, a sealing strip 201, a first pull rope 301 and a second pull rope 401; and a composite assembly disposed inside the bag body 1, the composite assembly including: a reinforcing layer 101, a barrier layer 102 and an inner layer 103.
[0027] The composite components give the bag 1 excellent barrier properties and mechanical strength, preventing damage during use and food leakage. The sealing components facilitate sealing of the bag 1, making it easy for users to open and reseal, enhancing convenience and hygiene. At the same time, it effectively reduces dust and impurities from the external environment from falling into the bag opening, preventing food contamination and further ensuring consumer safety. Example 2
[0028] Based on Embodiment 1, the surface of the bag body 1 is provided with a printing layer, the inside of the bag body 1 is provided with a reinforcing layer 101, the inside of the reinforcing layer 101 is provided with a barrier layer 102, and the inside of the barrier layer 102 is provided with an inner layer 103.
[0029] The reinforcing layer 101 is made of nylon material. Nylon is a high-performance engineering plastic with excellent mechanical strength, puncture resistance, barrier properties and temperature resistance. This allows the reinforcing layer 101 to improve the puncture resistance and mechanical strength of the bag body 1, preventing foreign objects from tearing the bag body 1 and causing food leakage inside the bag body 1.
[0030] Among them, the barrier layer 102 is made of aluminum foil. Aluminum foil has good barrier properties, temperature resistance and formability, which can effectively prevent moisture from penetrating into the bag body 1 and extend the shelf life of food.
[0031] The inner layer 103 is made of polyethylene material, which has good sealing properties and can prevent food inside the bag 1 from leaking into the outside.
[0032] The composite structure design consisting of reinforcing layer 101, barrier layer 102 and inner layer 103 provides excellent barrier properties and mechanical strength to the bag body 1, preventing damage to the bag body 1 during use and thus preventing food leakage. Example 3
[0033] Based on Embodiment 1, two sealing strips 2 are connected to the inner side of the inner layer 103. Each sealing strip 2 is connected to a sealing strip 201, which is a pressure-sensitive adhesive strip. Two symmetrically arranged through holes 3 are opened on one side of the bag body 1. A first pull rope 301 is inserted through the through hole 3, and both ends of the first pull rope 301 are connected to the inner layer 103. An opening 4 is opened on the other side of the bag body 1. A second pull rope 401 is inserted through the opening 4, and both ends of the second pull rope 401 are connected to the inner layer 103. A fleece layer 502 is connected to one side of the bag body 1, and a bristle layer 501 is provided on one side of the covering fabric 5. The fleece layer 502 and the bristle layer 501 are positioned correspondingly.
[0034] When loading food, the sealing strip 201 and the sealing strip 2 can be opened, and then the food to be loaded can be placed inside the bag body 1. Next, the bag is sealed by pressing the sealing strip 201 on one side of the sealing strip 2 against the sealing strip 201 on the other sealing strip 2, so that the sealing strip 201 seals the gap between the two sealing strips 2. Then, the covering cloth 5 is placed over the bag body 1, and the bristle layer 501 on the covering cloth 5 adheres to the fleece layer 502 on the surface of the bag body 1. This allows the covering cloth 5 to cover most of the top opening of the bag body 1, reducing dust falling into the bag. Regarding the sealing strip 2, when carrying the bag body 1, it can be lifted and carried by the first pull rope 301 and the second pull rope 401. When the first pull rope 301 and the second pull rope 401 are lifted, they pull the inner layers 103 on both sides of the bag opening of the bag body 1 closer together, so that the top of the bag opening of the bag body 1 is close to each other, further sealing the bag opening. The thickened plate 104 can thicken the bottom of the bag body 1, preventing the bag body 1 from being torn by sharp objects at the placement location during placement, thus preventing food leakage.
[0035] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.
[0036] The foregoing has provided a detailed description of a multi-layer composite food irregular-shaped bag provided in the embodiments of this application. Specific examples have been used to illustrate the principles and implementation methods of this application. The description of the above embodiments is only for the purpose of helping to understand the technical solutions and core ideas of this application. Those skilled in the art should understand that they can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.
Claims
1. A multi-layer composite irregular-shaped food bag, characterized in that, include: The bag body (1) has a covering cloth (5) connected to one side of the top of the bag body (1) and a thickened plate (104) connected to the bottom of the bag body (1). A sealing assembly is provided at the top of the bag body (1), the sealing assembly comprising: a sealing strip (2), a sealing strip (201), a first pull cord (301), and a second pull cord (401); and A composite component disposed inside the bag body (1) includes: a reinforcing layer (101), a barrier layer (102), and an inner layer (103).
2. The multi-layer composite food irregular-shaped bag according to claim 1, characterized in that, The bag body (1) has a printed layer on its surface, a reinforcing layer (101) inside the bag body (1), a barrier layer (102) inside the reinforcing layer (101), and an inner layer (103) inside the barrier layer (102).
3. The multi-layer composite food irregular-shaped bag according to claim 2, characterized in that, The reinforcing layer (101) is made of nylon material.
4. The multi-layer composite food irregular-shaped bag according to claim 2, characterized in that, The barrier layer (102) is made of aluminum foil.
5. The multi-layer composite food irregular-shaped bag according to claim 2, characterized in that, The inner layer (103) is made of polyethylene material.
6. The multi-layer composite food irregular-shaped bag according to claim 2, characterized in that, The inner layer (103) has two sealing strips (2) connected to its inner side. Each sealing strip (2) is connected to a sealing strip (201), and the sealing strip (201) is a pressure-sensitive adhesive strip.
7. The multi-layer composite food irregular-shaped bag according to claim 6, characterized in that, Two symmetrically arranged through holes (3) are provided on one side of the bag body (1). A first pull rope (301) is inserted through the through hole (3), and both ends of the first pull rope (301) are connected to the inner layer (103). An opening (4) is provided on the other side of the bag body (1). A second pull rope (401) is inserted through the opening (4), and both ends of the second pull rope (401) are connected to the inner layer (103).
8. The multi-layer composite food irregular-shaped bag according to claim 1, characterized in that, The bag body (1) has a fleece layer (502) connected to one side, and the covering fabric (5) has a bristle layer (501) on one side, and the fleece layer (502) and the bristle layer (501) are positioned corresponding to each other.