Multi-layer composite degradable preservation bag

Abstract

The utility model relates to the technical field of packaging bags, in particular to a multi-layer composite degradable freshness protection bag. Comprising a freshness protection bag main body, a reinforcing structure, release paper and an adhesive tape, the freshness protection bag body is composed of two plastic packaging films in a hot pressing mode, and a notch is formed in the edge of the freshness protection bag body and is close to the heat sealing position of the freshness protection bag body. The reinforcing structure is arranged on the inner side face of the plastic packaging film and comprises a plurality of transverse reinforcing net wires arranged side by side and a plurality of vertical reinforcing net wires arranged side by side. The release paper is adhered to the edge of the freshness protection bag main body, and the adhesive tape is adhered to the release paper. The freshness protection bag sealing device is good in freshness protection bag sealing effect, easy to operate and low in manufacturing cost.

Description

Technical Field

[0001] The utility model relates to the technical field of packaging bags, in particular to a multi-layer composite degradable fresh-keeping bag. Background Art

[0002] Fresh-keeping bags mainly refer to bags made of food preservative film, which are mainly used to preserve vegetables, fruits, grains, cooked food and other foods. They are widely used in daily life. Due to the extensive use of fresh-keeping bags, a large amount of white garbage is generated, which has a great negative impact on the environment. Therefore, degradable fresh-keeping bags have emerged, which can effectively deal with the discarded fresh-keeping bags. Now, fresh-keeping bags are not only used for preservation, but also have the function of bags, especially now they are widely used in the takeaway industry.

[0003] In order to ensure the sealing performance of the fresh-keeping bag, a sealing strip is usually used for sealing, but the sealing effect of the sealing strip is general and the cost of its use is high. Utility Model Content

[0004] The utility model aims to provide a multi-layer composite degradable fresh-keeping bag in view of the problems existing in the background technology.

[0005] The technical solution of the utility model is a multi-layer composite degradable fresh-keeping bag, comprising:

[0006] The fresh-keeping bag body is composed of two plastic sealing films that are heat-pressed, and one side of the fresh-keeping bag body is open, and a notch is provided at the edge of the fresh-keeping bag body and adjacent to the heat-sealed position of the fresh-keeping bag body;

[0007] A reinforcing structure arranged on the inner side of the plastic film, the reinforcing structure comprising a plurality of transverse reinforcing wires arranged side by side and a plurality of vertical reinforcing wires arranged side by side, the plurality of transverse reinforcing wires and the plurality of vertical reinforcing wires forming a mesh structure;

[0008] Release paper and adhesive tape, the release paper is adhered to the edge of the fresh-keeping bag body, and the adhesive tape is adhered to the release paper.

[0009] Preferably, an exhaust pipe is installed on the fresh-keeping bag body, the exhaust pipe is communicated with the inner cavity of the fresh-keeping bag body, and a one-way valve is installed on the exhaust pipe.

[0010] Preferably, a diaphragm is provided on the inner side of the plastic sealing film.

[0011] Preferably, the length of the adhesive tape is greater than the opening length of the fresh-keeping bag body.

[0012] Preferably, the outer surface of the fresh-keeping bag body is coated with a heat-insulating coating.

[0013] Preferably, an easy-to-tear notch is provided on the main body of the fresh-keeping bag.

[0014] Compared with the prior art, the utility model has the following beneficial technical effects: after putting food into the interior of the fresh-keeping bag body, the adhesive tape is subsequently torn off the release paper, and then the adhesive tape is adhered to the opening of the fresh-keeping bag body to achieve complete sealing of the opening of the fresh-keeping bag body, and the sealing effect is good, the operation is simple, and the manufacturing cost is low. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 and Figure 2 All of them are structural schematic diagrams of the present utility model.

[0016] Figure 3 for Figure 1 Schematic diagram of the local enlarged structure at point A.

[0017] Figure numerals: 1. Fresh-keeping bag body; 101. Notch; 102. Easy-tear notch; 2. Plastic sealing film; 3. Release paper; 4. Adhesive tape; 51. Horizontal reinforcing mesh wire; 52. Vertical reinforcing mesh wire; 6. Diaphragm; 7. Exhaust pipe; 8. One-way valve. DETAILED DESCRIPTION

[0018] Embodiment 1

[0019] like Figure 1-Figure 3 As shown, a multi-layer composite degradable fresh-keeping bag proposed in this embodiment includes a fresh-keeping bag body 1, a reinforcement structure, a release paper 3 and an adhesive tape 4;

[0020] The outer surface of the fresh-keeping bag body 1 is coated with a heat-insulating coating, which can isolate the external heat; the fresh-keeping bag body 1 is provided with an easy-tear notch 102; the fresh-keeping bag body 1 is formed by hot-pressing two plastic sealing films 2, and one side of the fresh-keeping bag body 1 is open, and a notch 101 is provided at the edge of the fresh-keeping bag body 1 and adjacent to the heat-sealed position of the fresh-keeping bag body 1;

[0021] The reinforcement structure is arranged on the inner side of the plastic film 2, and the reinforcement structure includes a plurality of transverse reinforcement wires 51 arranged side by side and a plurality of vertical reinforcement wires 52 arranged side by side, and the plurality of transverse reinforcement wires 51 and the plurality of vertical reinforcement wires 52 form a mesh structure;

[0022] The release paper 3 is bonded to the edge of the fresh-keeping bag body 1, and the adhesive tape 4 is bonded to the release paper 3. The length of the adhesive tape 4 is greater than the opening length of the fresh-keeping bag body 1. This arrangement allows the adhesive tape 4 to completely cover the opening of the fresh-keeping bag body 1, thereby ensuring the sealing effect on the opening of the fresh-keeping bag body 1.

[0023] A diaphragm 6 is arranged inside the plastic sealing film 2, and the diaphragm 6 is arranged to divide the interior of the fresh-keeping bag body 1 into two independent areas for placing different kinds of food.

[0024] In this embodiment, the food to be preserved is placed inside the fresh-keeping bag body 1, and then the adhesive tape 4 is torn off from the release paper 3, and then the adhesive tape 4 is adhered to the opening of the fresh-keeping bag body 1 to achieve complete sealing of the opening of the fresh-keeping bag body 1. The sealing effect is good, the operation is simple, and the manufacturing cost is low. When the food needs to be taken out, the fresh-keeping bag body 1 can be directly torn open through the easy-tear opening 102.

[0025] Embodiment 2

[0026] like Figure 3 As shown, the present embodiment proposes a multi-layer composite degradable fresh-keeping bag. Compared with the first embodiment, in the present embodiment, an exhaust pipe 7 is installed on the fresh-keeping bag main body 1, and the exhaust pipe 7 is connected to the inner cavity of the fresh-keeping bag main body 1. A one-way valve 8 is installed on the exhaust pipe 7. The end of the exhaust pipe 7 is connected to the exhaust nozzle to extract the air inside the fresh-keeping bag main body 1, thereby delaying the shelf life of the food.

[0027] The implementation modes of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited thereto, and various changes can be made within the knowledge scope of technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. A multi-layer composite degradable fresh-keeping bag, characterized in that: include: A fresh-keeping bag body (1), the fresh-keeping bag body (1) is formed by hot pressing two plastic sealing films (2), one side of the fresh-keeping bag body (1) is open, and a notch (101) is provided at the edge of the fresh-keeping bag body (1) and adjacent to the heat-sealed position of the fresh-keeping bag body (1); A reinforcing structure arranged on the inner side of the plastic film (2), the reinforcing structure comprising a plurality of transverse reinforcing wires (51) arranged side by side and a plurality of vertical reinforcing wires (52) arranged side by side, the plurality of transverse reinforcing wires (51) and the plurality of vertical reinforcing wires (52) forming a mesh structure; Release paper (3) and adhesive tape (4), wherein the release paper (3) is adhered to the edge of the fresh-keeping bag body (1), and the adhesive tape (4) is adhered to the release paper (3).

2. A multi-layer composite degradable fresh-keeping bag according to claim 1, characterized in that: An exhaust pipe (7) is installed on the fresh-keeping bag body (1); the exhaust pipe (7) is communicated with the inner cavity of the fresh-keeping bag body (1); and a one-way valve (8) is installed on the exhaust pipe (7).

3. The multi-layer composite degradable fresh-keeping bag according to claim 1, characterized in that: A diaphragm (6) is arranged on the inner side of the plastic sealing film (2).

4. The multi-layer composite degradable fresh-keeping bag according to claim 1, characterized in that: The length of the adhesive tape (4) is greater than the opening length of the freshness-preserving bag body (1).

5. The multi-layer composite degradable fresh-keeping bag according to claim 1, characterized in that: The outer surface of the fresh-keeping bag body (1) is coated with a heat-insulating coating.

6. The multi-layer composite degradable fresh-keeping bag according to claim 1, characterized in that: The fresh-keeping bag body (1) is provided with an easy-tear opening (102).

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