A high-sealing plastic packaging bag

Abstract

This utility model relates to the field of plastic packaging bag technology and discloses a high-sealing plastic packaging bag, including a bag body assembly. The bag body assembly includes a plastic film, and a sealing component is provided at the front end of the inner wall of the plastic film. The sealing component includes a silicone protrusion fixed to the front edge of the inner wall on one side of the plastic film, and a flexible concave block fixedly connected to the front edge of the inner wall on the other side of the plastic film. Rubber magnets are fixedly connected to the front ends of the inner walls on both sides of the plastic film. In this utility model, by means of the sealing component, when the sealing strip is forgotten to be manually sealed, the two rubber magnets will automatically attract each other, thereby moving the bag body assembly. The two rubber magnets will automatically stick together to keep the plastic packaging bag sealed, thus avoiding the problem of air leakage and moisture inside the plastic packaging bag due to forgetting to manually seal the sealing strip.

Description

Technical Field

[0001] This utility model relates to the field of plastic packaging bag technology, and in particular to a high-sealing plastic packaging bag. Background Technology

[0002] Plastic bags are commonly used to keep food fresh, prevent contamination, extend shelf life, and facilitate storage. Plastic bags are moisture-resistant, moisture-proof, oxidation-resistant, and transparent, and come in a wide variety of types. They can be used to package various foods such as snacks, fruits and vegetables, frozen foods, meat, biscuits, and beverages. In addition to protecting food safety, plastic bags can also attract consumers through their design, often displaying information such as brand, nutritional information, and production date.

[0003] Although existing plastic packaging bags have a sealing structure, they do not have an automatic sealing function. After use, if they are not manually sealed, the food inside the packaging bag will easily become damp, leading to spoilage and waste.

[0004] Therefore, those skilled in the art have provided a highly airtight plastic packaging bag to solve the problems mentioned in the background art. Utility Model Content

[0005] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a highly airtight plastic packaging bag. Through the interlocking design of rubber magnets and silicone protrusions and flexible concave blocks, the bag can be easily resealed. It is suitable for scenarios that require multiple opening and resealing, such as dry goods and snacks. Consumers can reseal the bag after use to prevent the contents from getting damp or spoiling.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] A high-sealing plastic packaging bag includes a bag body assembly, which includes a plastic film. The outer wall of the plastic film is provided with a cast polypropylene film. An EVOH co-extruded film is provided on the outer wall of the cast polypropylene film away from the plastic film. A biaxially oriented polypropylene film is provided on the outer wall of the EVOH co-extruded film away from the cast polypropylene film. A sealing component is provided at the front end of the inner wall of the plastic film. The sealing component includes a silicone protrusion fixed to the front edge of one inner wall of the plastic film, a flexible concave block fixedly connected to the front edge of the other inner wall of the plastic film, and rubber magnets fixedly connected to the front ends of both inner walls of the plastic film.

[0008] The above technical solution provides a stronger sealing effect through a multi-layer membrane structure, which can effectively block air, moisture, oil and light, thus helping to extend the shelf life of food and reduce the risk of oxidation and spoilage.

[0009] Furthermore, the silicone bumps and flexible recesses engage with each other;

[0010] The above technical solution utilizes the interplay between silicone protrusions and flexible concave blocks to effectively achieve a secondary sealing effect.

[0011] Furthermore, both of the rubber magnets attract each other;

[0012] The above technical solution uses two rubber magnets to create a preliminary seal when the silicone bumps and flexible concave blocks are not manually pinched together, preventing the food inside from becoming too wet too quickly.

[0013] This utility model has the following beneficial effects:

[0014] 1. The present invention proposes a high-sealing plastic packaging bag. Through the setting of the sealing component, when the sealing strip is forgotten to be manually sealed, two rubber magnets will automatically attract each other, thereby driving the bag body component to move. The two rubber magnets will automatically stick together to keep the plastic packaging bag sealed, thus avoiding the problem of air leakage and moisture inside the plastic packaging bag due to forgetting to manually seal the sealing strip. Attached Figure Description

[0015] Figure 1 An isometric view of a high-sealing plastic packaging bag proposed in this utility model;

[0016] Figure 2 This is a cross-sectional view of a high-sealing plastic packaging bag proposed in this utility model;

[0017] Figure 3 This is a cross-sectional view of a high-sealing plastic packaging bag proposed in this utility model;

[0018] Figure 4 This is a structural schematic diagram of a high-sealing plastic packaging bag proposed in this utility model.

[0019] Legend: 1. Bag assembly; 101. Plastic film; 102. Cast polypropylene film; 103. EVOH co-extruded film; 104. Biaxially oriented polypropylene film; 2. Sealing assembly; 201. Rubber magnet; 202. Silicone bump; 203. Flexible concave block. Detailed Implementation

[0020] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of specific embodiments. Obviously, the described specific embodiments are only a part of the specific embodiments of the present invention, and not all of them. Based on the specific embodiments of the present invention, all other specific embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0021] One specific embodiment of this utility model is provided:

[0022] Reference Figure 1 , Figure 2 ,and Figure 3 :

[0023] A high-sealing plastic packaging bag includes a bag body assembly 1, which includes a plastic film 101. The outer wall of the plastic film 101 is provided with a cast polypropylene film 102. The outer wall of the cast polypropylene film 102 away from the plastic film 101 is provided with an EVOH co-extruded film 103. The outer wall of the EVOH co-extruded film 103 away from the cast polypropylene film 102 is provided with a biaxially oriented polypropylene film 104. A sealing component 2 is provided at the front end of the interior of the plastic film 101. The sealing component 2 includes a silicone protrusion 202 fixed at the front edge of the inner wall of one side of the plastic film 101, a flexible concave block 203 fixedly connected at the front edge of the inner wall of the other side of the plastic film 101, and rubber magnets 201 fixedly connected at the front ends of the inner walls on both sides of the plastic film 101.

[0024] The multi-layered membrane structure provides a stronger sealing effect, effectively blocking air, moisture, oil, and light, which helps extend the shelf life of food and reduce the risk of oxidation and spoilage.

[0025] Reference Figure 2 , Figure 3 and Figure 4 :

[0026] The silicone protrusion 202 and the flexible concave block 203 engage with each other, effectively achieving a secondary seal. The two rubber magnets 201 attract each other, allowing for initial sealing even if the silicone protrusion 202 and the flexible concave block 203 are not manually engaged, thus preventing the food inside from becoming too moist.

[0027] Working principle: In use, the plastic bag opening is manually opened to both sides, separating the silicone protrusion 202 from the flexible protrusion 203. Then, the hand is inserted into the bag assembly 1, causing the bag opening to gradually open and separating the two rubber magnets 201, allowing the contents to be retrieved. When the hand is removed from the bag assembly 1, the two rubber magnets 201 attract each other, causing the bag assembly 1 to flexibly close, thus achieving an initial seal. Then, the contents are retrieved from the bag assembly 1... The positions of the externally pinched silicone protrusions 202 and flexible concave blocks 203 are such that the silicone protrusions 202 elastically contract into the interior of the flexible concave blocks 203, thereby performing a secondary seal on the bag assembly 1. Then, the acid resistance, oil resistance, and hygiene safety of the plastic film 101 are improved by the cast polypropylene film 102. The core barrier properties of the plastic film 101 are provided by the EVOH co-extruded film 103. Finally, the mechanical strength, printability, and abrasion resistance of the plastic packaging bag are effectively improved by the biaxially oriented polypropylene film 104.

[0028] The following points should be noted in this article:

[0029] 1. The accompanying drawings of the embodiments disclosed herein only relate to the structures involved in the embodiments disclosed herein; other structures can be referred to in general design.

[0030] 2. Where there is no conflict, the embodiments of this disclosure and the features thereof can be combined with each other to obtain new embodiments.

[0031] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. The specific meaning of the above terms in this utility model shall be understood by those skilled in the art based on the specific circumstances. In addition, unless otherwise stated, "multiple" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and should not be construed as a limitation on this utility model; the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0032] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing specific embodiments, those skilled in the art can still modify the technical solutions described in the foregoing specific embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A high sealability plastic packaging bag comprising a bag body assembly (1), characterized in that: The bag assembly (1) includes a plastic film (101), and the outer wall of the plastic film (101) is provided with a cast polypropylene film (102). The outer wall of the cast polypropylene film (102) away from the plastic film (101) is provided with an EVOH co-extruded film (103). The outer wall of the EVOH co-extruded film (103) away from the cast polypropylene film (102) is provided with a biaxially oriented polypropylene film (104). A sealing assembly (2) is provided at the front end of the inside of the plastic film (101). The sealing assembly (2) includes a silicone protrusion (202) fixed at the front edge of the inner wall of one side of the plastic film (101). A flexible concave block (203) is fixedly connected at the front edge of the inner wall of the other side of the plastic film (101). Rubber magnets (201) are fixedly connected at the front ends of the inner walls on both sides of the plastic film (101).

2. A high sealability plastic packaging bag according to claim 1, characterized in that: The silicone bump (202) and the flexible concave block (203) engage with each other.

3. The high sealability plastic packaging bag according to claim 1, wherein: The two rubber magnets (201) attract each other.

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