Waterproof high-strength packaging bag

Abstract

The utility model discloses a waterproof high strength packing bag belongs to packing bag technical field, including the bag body, the bag mouth department of bag body is provided with sealed zip fastener, the bag body includes ultrahigh molecular polyethylene outer layer, the inside of ultrahigh molecular polyethylene outer layer is bonded with graphene PP meltblown cloth, the inside of graphene PP meltblown cloth is bonded with PET film, the inside of PET film is bonded with food -grade thermoplastic polyurethane film, through the setting of ultrahigh molecular polyethylene outer layer and graphene PP meltblown cloth, can improve the breaking strength and tensile strength of packing bag, make packing bag not easy to damage, strengthen waterproof sealing property simultaneously, block water vapor permeation, through the setting of PET film, food -grade thermoplastic polyurethane film and nanometer silicon dioxide coating, can form compact structure, further block the permeation of water molecule, reach the effect of double waterproof barrier, improve the waterproof grade of packing bag.

Description

Technical Field

[0001] This utility model belongs to the field of packaging bag technology, specifically relating to a waterproof and high-strength packaging bag. Background Technology

[0002] Packaging bags are bags used to package various items, facilitating transportation and storage of goods during production and distribution. They are widely used in daily life and industrial production. Packaging bags are inexpensive and practical, and with the rapid development of the catering service industry, some businesses also use packaging bags as outer packaging for food delivery.

[0003] Traditional packaging bags are mostly made of single plastic or fabric materials, which have poor tensile strength and tensile properties, making them easy to break and tear. This results in poor waterproof performance, and in humid environments, moisture can easily penetrate into the packaging bag, affecting the quality of the product inside. Utility Model Content

[0004] The purpose of this utility model is to provide a waterproof and high-strength packaging bag to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a waterproof and high-strength packaging bag, comprising a bag body, wherein a sealing zipper is provided at the bag opening of the bag body, the bag body comprises an ultra-high molecular weight polyethylene outer layer, a graphene PP meltblown fabric is bonded to the inner side of the ultra-high molecular weight polyethylene outer layer, a PET film is bonded to the inner side of the graphene PP meltblown fabric, and a food-grade thermoplastic polyurethane film is bonded to the inner side of the PET film.

[0006] In a preferred embodiment, the outer surface of the ultra-high molecular weight polyethylene outer layer is provided with a fluorocarbon coating.

[0007] In a preferred embodiment, a nano-silica coating is provided between the PET film and the food-grade thermoplastic polyurethane film.

[0008] In a preferred embodiment, the inner surface of the food-grade thermoplastic polyurethane film is provided with a silver ion antibacterial coating.

[0009] In a preferred embodiment, a self-closing silicone sealing strip is provided on the inner side of the bag opening.

[0010] Compared with the prior art, the beneficial effects of this utility model are: This waterproof, high-strength packaging bag, through the combination of an ultra-high molecular weight polyethylene outer layer and graphene PP meltblown fabric, can improve the tear strength and tensile strength of the packaging bag, making it less prone to damage. At the same time, it enhances waterproof sealing and prevents water vapor penetration. Through the combination of PET film, food-grade thermoplastic polyurethane film, and nano-silica coating, a dense structure can be formed to further prevent water molecule penetration, achieving a double waterproof barrier effect and improving the waterproof rating of the packaging bag. This waterproof, high-strength packaging bag features a sealing zipper and a self-closing silicone sealing strip, which double-seals the bag opening, enhancing its waterproof performance. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a side sectional view of the present invention. Figure 3 This is a schematic diagram of the structural composition of the bag body of this utility model.

[0012] In the diagram: 1. Bag body; 11. Ultra-high molecular weight polyethylene outer layer; 12. Graphene PP meltblown fabric; 13. PET film; 14. Food-grade thermoplastic polyurethane film; 15. Fluorocarbon coating; 16. Nano silica coating; 17. Silver ion antibacterial coating; 2. Sealing zipper; 3. Self-closing silicone sealing strip. Detailed Implementation

[0013] The present invention will be further described below with reference to the embodiments.

[0014] The following embodiments are used to illustrate the present invention, but should not be used to limit the scope of protection of the present invention. The conditions in the embodiments can be further adjusted according to specific conditions, and simple improvements to the method of the present invention under the concept of the present invention are all within the scope of protection claimed by the present invention.

[0015] Please see Figure 1-3 This utility model provides a waterproof and high-strength packaging bag, including a bag body 1. A sealing zipper 2 is provided at the opening of the bag body 1, and a self-absorbing silicone sealing strip 3 is provided on the inner side of the opening of the bag body 1. By setting the sealing zipper 2 and the self-absorbing silicone sealing strip 3, the opening of the packaging bag can be double-sealed, thereby improving the waterproof effect at the opening.

[0016] The bag body 1 includes an ultra-high molecular weight polyethylene outer layer 11, and a graphene PP meltblown fabric 12 is bonded to the inner side of the ultra-high molecular weight polyethylene outer layer 11. The ultra-high molecular weight polyethylene outer layer 11 and the graphene PP meltblown fabric 12 can improve the breaking strength and tensile strength of the packaging bag, making the packaging bag less prone to damage, while enhancing waterproof sealing and preventing water vapor penetration. The outer surface of the ultra-high molecular weight polyethylene outer layer 11 is provided with a fluorocarbon coating 15. The fluorocarbon coating 15 makes it difficult for dust and water to adhere to the surface of the packaging bag, thereby improving the waterproof and anti-fouling effect.

[0017] A PET film 13 is bonded to the inner side of the graphene PP meltblown fabric 12, and a food-grade thermoplastic polyurethane film 14 is bonded to the inner side of the PET film 13. A nano-silica coating 16 is provided between the PET film 13 and the food-grade thermoplastic polyurethane film 14. Through the arrangement of the PET film 13, the food-grade thermoplastic polyurethane film 14 and the nano-silica coating 16, a dense structure can be formed, which further blocks the penetration of water molecules, achieves a double waterproof barrier effect, and improves the waterproof level of the packaging bag.

[0018] Furthermore, the inner surface of the food-grade thermoplastic polyurethane film 14 is provided with a silver ion antibacterial coating 17, which can play an antibacterial role on the inside of the packaging bag.

[0019] The working principle and usage process of this utility model are as follows: First, the sealing zipper 2 and the self-absorbing silicone sealing strip 3 can double seal the bag opening, improving the waterproof effect at the bag opening. The ultra-high molecular weight polyethylene outer layer 11 and graphene PP meltblown cloth 12 can improve the breaking strength and tensile strength of the packaging bag, making the packaging bag less prone to damage, while enhancing waterproof sealing and preventing water vapor penetration. The PET film 13, food-grade thermoplastic polyurethane film 14 and nano silica coating 16 can form a dense structure, further preventing the penetration of water molecules, achieving a double waterproof barrier effect and improving the waterproof level of the packaging bag.

[0020] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A waterproof, high-strength packaging bag, comprising a bag body (1), characterized in that: The bag body (1) is provided with a sealing zipper (2) at the bag opening. The bag body (1) includes an ultra-high molecular weight polyethylene outer layer (11). Graphene PP meltblown fabric (12) is bonded to the inner side of the ultra-high molecular weight polyethylene outer layer (11). PET film (13) is bonded to the inner side of the graphene PP meltblown fabric (12). Food-grade thermoplastic polyurethane film (14) is bonded to the inner side of the PET film (13).

2. The waterproof high-strength packaging bag according to claim 1, characterized in that: The outer surface of the ultra-high molecular weight polyethylene outer layer (11) is provided with a fluorocarbon coating (15).

3. The waterproof high-strength packaging bag according to claim 1, characterized in that: A nano-silica coating (16) is provided between the PET film (13) and the food-grade thermoplastic polyurethane film (14).

4. A waterproof, high-strength packaging bag according to claim 1, characterized in that: The inner surface of the food-grade thermoplastic polyurethane film (14) is provided with a silver ion antibacterial coating (17).

5. A waterproof, high-strength packaging bag according to claim 1, characterized in that: The bag body (1) has a self-absorbing silicone sealing strip (3) on the inside of the bag opening.

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