Multi-layer composite environment-friendly packaging bag

By employing a multi-layered composite structure, consisting of polyester film, a nylon outer protective layer, a polyethylene moisture-proof inner bag, a polypropylene reinforcing layer, and a bamboo fiber antibacterial layer, the problem of low strength in environmentally friendly packaging bags is solved, achieving tensile strength, moisture resistance, antibacterial properties, and cushioning effects, thus extending service life.

CN223878611UActive Publication Date: 2026-02-06SHENZHEN GUANLIDA NEW MATERIALS TECH CO LTD
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Patent Information

Application Number
CN202520517378.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-24
Publication Date
2026-02-06
Estimated Expiration
2035-03-24

AI Technical Summary

Technical Problem

Existing environmentally friendly packaging bags have low overall strength, are easily damaged, and have a short service life.

Method used

The packaging bag employs a multi-layer composite structure, including a polyester film, a nylon outer protective layer, a polyethylene moisture-proof inner bag, a polypropylene reinforcing layer, and a bamboo fiber antibacterial layer, which enhances the bag's tensile strength, moisture resistance, abrasion resistance, and antibacterial properties.

Benefits of technology

It improves the overall strength of the packaging bag, extends its service life, and provides moisture-proof, antibacterial, and cushioning functions.

✦ Generated by Eureka AI based on patent content.

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Patent Text Reader

Abstract

The utility model discloses a multi-layer composite environment-friendly packaging bag, which relates to the technical field of environment-friendly packaging bags and comprises a packaging bag body and a protective component, the packaging bag body is of an integrated structure, and the protective component is arranged on the surface of the packaging bag body. The protection assembly comprises a polyester film, a nylon outer protection layer, a polyethylene damp-proof inner bag, a polypropylene reinforcing layer and a bamboo fiber antibacterial layer, the polyester film is arranged on the outer surface of the packaging bag body, the nylon outer protection layer is arranged on the outer side of the polyester film, and the polyethylene damp-proof inner bag is connected to the inner side of the packaging bag body; and a polypropylene reinforcing layer is arranged on the inner surface of the polyethylene damp-proof inner bag. According to the multi-layer composite environment-friendly packaging bag, the overall strength of the packaging bag can be enhanced through a multi-layer composite structure through the protection assembly, the packaging bag is not prone to being damaged, the service life of the packaging bag is prolonged, the connecting handle can be lengthened through the connecting assembly, the packaging bag can be lifted by hands or carried on the shoulder, and the burden can be relieved.
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Description

TECHNICAL FIELD

[0001] The utility model relates to environmental protection packing bag technical field, concretely is a kind of multilayer composite environmental protection packing bag. BACKGROUND

[0002] Environmental protection packing bag refers to the packing bag made of degradable, recyclable or biodegradable materials, aiming to reduce environmental pollution. Common environmental protection packing bag materials include non-woven bag, canvas bag and cotton bag, biodegradable plastic and recyclable plastic, etc. Environmental protection packing bag is a type of packing bag that focuses on environmental protection. Its design and use aim to reduce negative impact on the environment. However, the current environmental protection packing bag still has the following shortcomings:

[0003] For example, the patent document with publication number CN213503736U discloses an environmental protection packing bag. The environmental protection packing bag can prevent dust from entering the non-woven fabric packing bag by preventing dust from entering the top of the non-woven fabric packing bag, thereby keeping the inside of the non-woven fabric packing bag clean. However, its overall strength is low and it is easy to be damaged, thereby reducing the service life.

[0004] Therefore, in view of the above, the existing structure is improved, and a multilayer composite environmental protection packing bag is proposed. INVENTION CONTENTS

[0005] The utility model aims to provide a kind of multilayer composite environmental protection packing bag, to solve the problems raised in the above background art.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a kind of multilayer composite environmental protection packing bag, including packing bag bag body and protection assembly, the packing bag bag body is integrated structure, the protection assembly is set to packing bag bag body surface, and protection assembly includes polyester film, nylon outer protective layer, polyethylene moisture-proof inner bag, polypropylene reinforcing layer and bamboo fiber antibacterial layer, the polyester film is set to packing bag bag body outer surface, and nylon outer protective layer is set to polyester film outer side, the packing bag bag body inner side is connected with polyethylene moisture-proof inner bag, and polyethylene moisture-proof inner bag inner surface is provided with polypropylene reinforcing layer, the polypropylene reinforcing layer inner side is connected with bamboo fiber antibacterial layer, and bamboo fiber antibacterial layer, polypropylene reinforcing layer and polyethylene moisture-proof inner bag are sequentially arranged from inside to outside.

[0007] Further, the packing bag bag body is a flexible structure, and the packing bag bag body front side is provided with a storage sub-bag.

[0008] Further, the packing bag bag body lower side is provided with a reinforcing base, and the reinforcing base upper end inner surface and nylon outer protective layer outer surface lower end are tightly connected.

[0009] Further, the reinforcing base is an integrated structure, and the inside lower end of the reinforcing base is filled with EPE pearl wool.

[0010] Further, the inside upper end of the bamboo fiber antibacterial layer is provided with a dustproof pad, and the surface of the dustproof pad is provided with a sealing strip.

[0011] Further, the surface of the packaging bag body is provided with a connecting assembly for connection, and the connecting assembly comprises a connecting piece, an extension belt, a connecting handle and a connecting hole.

[0012] Further, the outer side of the connecting piece is connected with the extension belt, and the upper end of the extension belt is provided with the connecting handle.

[0013] Further, the connecting assembly further comprises a connecting barrel and a fixing piece, and the inside of the connecting hole is provided with the connecting barrel.

[0014] The utility model provides a kind of multilayer composite environmental protection packaging bag, with following beneficial effects:

[0015] 1, the utility model discloses a protective component, protective component includes polyester film, nylon outer protective layer, polyethylene moistureproof inner bag, polypropylene reinforcing layer and bamboo fiber antibacterial layer, when using, polyester film has good physical property, can improve the tensile property of packaging bag body, so that it is not easy to break, nylon outer protective layer has higher strength and wear resistance, outer surface is not easy to be abraded or damaged, polyethylene moistureproof inner bag has good moisture resistance and flexibility, can isolate moisture, ensure that the drying of packaged goods, polypropylene reinforcing layer is strong, not easy to break, bamboo fiber antibacterial layer is good in ventilation, with antibacterial, mildew-proof effect, so that the device can enhance the overall strength of packaging bag by multilayer composite structure, so that it is not easy to be damaged, to prolong its service time.

[0016] 2, the utility model discloses a connecting assembly, connecting assembly includes connecting piece, extension belt, connecting handle and connecting hole, connecting assembly further includes connecting barrel and fixing piece, when using, the extension belt can be connected between connecting piece and connecting handle, the connecting hole of lower end of extension belt is aligned with the connecting hole on the surface of connecting piece, the connecting hole of upper end of extension belt is aligned with the connecting hole of lower end of connecting handle, connecting barrel is inserted into the inside of connecting hole, is fixed by the engagement connection of fixing piece and the inside of connecting barrel, the connection of extension belt, connecting piece and connecting handle is fixed, so that the device can lengthen connecting handle, can be carried by hand also can be hung on shoulder, can reduce burden. DRAWINGS

[0017] Figure 1The utility model discloses a three-dimensional structure schematic diagram of a multilayer composite environment-friendly packaging bag.

[0018] Figure 2 The utility model discloses a three-dimensional structure schematic diagram of a protection assembly of a multilayer composite environment-friendly packaging bag.

[0019] Figure 3 The utility model discloses a three-dimensional sectional structure schematic diagram of a packaging bag body of a multilayer composite environment-friendly packaging bag.

[0020] Figure 4 The utility model discloses a three-dimensional structure schematic diagram of a connecting assembly of a multilayer composite environment-friendly packaging bag.

[0021] In the drawing: 1, packaging bag body; 2, protection assembly; 201, polyester film; 202, nylon outer protective layer; 203, polyethylene moistureproof inner bag; 204, polypropylene reinforcing layer; 205, bamboo fiber antibacterial layer; 3, accomodate auxiliary bag; 4, reinforcing base; 5, EPE pearl wool; 6, dust pad; 7, sealing strip; 8, connecting assembly; 801, connecting piece; 802, lengthening belt; 803, connecting handle; 804, connecting hole; 805, connecting cylinder; 806, fixing piece. DETAILED DESCRIPTION

[0022] The embodiments of the utility model will be further described in detail below in combination with the drawings and examples. The following examples are used to illustrate the utility model, but can not be used to limit the scope of the utility model.

[0023] As Figures 1 to 4 Shown, a multilayer composite environment-friendly packaging bag, including packaging bag body 1 and protection assembly 2, packaging bag body 1 is the integration structure, and protection assembly 2 sets up at packaging bag body 1 surface, and protection assembly 2 includes polyester film 201, nylon outer protective layer 202, polyethylene moistureproof inner bag 203, polypropylene reinforcing layer 204 and bamboo fiber antibacterial layer 205, polyester film 201 sets up at the outer surface of packaging bag body 1, and polyester film 201 outside is provided with nylon outer protective layer 202, and the inner side of packaging bag body 1 is connected with polyethylene moistureproof inner bag 203, and the inner surface of polyethylene moistureproof inner bag 203 is provided with polypropylene reinforcing layer 204, and the inner side of polypropylene reinforcing layer 204 is connected with bamboo fiber antibacterial layer 205, and bamboo fiber antibacterial layer 205, polypropylene reinforcing layer 204 and polyethylene moistureproof inner bag 203 are sequentially arranged from inside to outside.

[0024] The specific operation is as follows, when in use, the polyester film 201 has good physical properties, can improve the tensile resistance of the packaging bag body 1, makes it not easy to break, the nylon outer protective layer 202 has high strength and wear resistance, the outer surface is not easy to be abraded or damaged, the polyethylene moisture-proof inner bag 203 has good moisture resistance and flexibility, can isolate moisture, ensure the dryness of the packaged goods, the polypropylene reinforcing layer 204 itself has strong bearing capacity and is not easy to be damaged, the bamboo fiber antibacterial layer 205 has good air permeability and has the effects of antibiosis and mildew resistance.

[0025] Please refer to Figure 1 、 Figure 3 and Figure 4 , the packaging bag body 1 is a flexible structure, and the packaging bag body 1 is provided with a storage sub-bag 3 on the front side, and a reinforcing base 4 is arranged on the lower side of the packaging bag body 1, and the inner surface of the upper end of the reinforcing base 4 is tightly connected with the outer surface of the lower end of the nylon outer protective layer 202, the reinforcing base 4 is an integrated structure, and the lower end of the reinforcing base 4 is filled with EPE pearl wool 5, the inner side of the upper end of the bamboo fiber antibacterial layer 205 is provided with a dustproof pad 6, and the surface of the dustproof pad 6 is provided with a sealing strip 7, the surface of the packaging bag body 1 is provided with a connecting assembly 8 for connection, and the connecting assembly 8 comprises a connecting piece 801, an extension belt 802, a connecting handle 803 and a connecting hole 804, the connecting piece 801 is arranged on the upper surface of the packaging bag body 1 at both ends, the outer side of the connecting piece 801 is connected with the extension belt 802, and the upper end of the extension belt 802 is provided with the connecting handle 803, the lower end of the connecting handle 803, the upper and lower ends of the extension belt 802 and the surface of the connecting piece 801 are provided with the connecting hole 804, the connecting assembly 8 further comprises a connecting barrel 805 and a fixing piece 806, and the inner side of the connecting hole 804 is provided with the connecting barrel 805, and the inner side of the connecting barrel 805 is connected with the fixing piece 806 in a clamping manner;

[0026] The specific operation is as follows, when in use, the extension belt 802 can be connected between the connecting piece 801 and the connecting handle 803, the connecting hole 804 at the lower end of the extension belt 802 is aligned with the connecting hole 804 on the surface of the connecting piece 801, the connecting hole 804 at the upper end of the extension belt 802 is aligned with the connecting hole 804 at the lower end of the connecting handle 803, the connecting barrel 805 is inserted into the inner side of the connecting hole 804, and the connection of the extension belt 802, the connecting piece 801 and the connecting handle 803 is fixed through the clamping connection of the fixing piece 806 and the inner side of the connecting barrel 805, the reinforcing base 4 can reinforce the lower end of the packaging bag body 1, the EPE pearl wool 5 not only has good water resistance, but also has a certain buffering effect, and the dustproof pad 6 has a dustproof effect.

[0027] In summary, as Figures 1 to 4As shown, the multi-layer composite environment-friendly packaging bag, in use, first, the lengthening belt 802 can be connected between the connecting piece 801 and the connecting handle 803, the connecting hole 804 at the lower end of the lengthening belt 802 is aligned with the connecting hole 804 on the surface of the connecting piece 801, the connecting hole 804 at the upper end of the lengthening belt 802 is aligned with the connecting hole 804 at the lower end of the connecting handle 803, the connecting cylinder 805 is inserted into the inner side of the connecting hole 804, the connecting of the lengthening belt 802, the connecting piece 801 and the connecting handle 803 is fixed through the clamping connection of the fixing piece 806 and the inner side of the connecting cylinder 805, the reinforcing base 4 can reinforce the lower end of the packaging bag body 1, the EPE pearl cotton 5 not only has good water resistance, but also can play a certain buffering effect, the dustproof pad 6 has a dustproof effect, in the use process of the device, the polyester film 201 has good physical properties, can improve the tensile property of the packaging bag body 1, so that it is not easy to break, the nylon outer protective layer 202 has high strength and wear resistance, the outer surface is not easy to be abraded or damaged, the polyethylene moisture-proof inner bag 203 has good moisture resistance and flexibility, can isolate moisture, ensure that the packaged articles are dry, the polypropylene reinforcing layer 204 has strong bearing capacity and is not easy to be damaged, the bamboo fiber antibacterial layer 205 has good air permeability, has the effects of antibiosis and mildew resistance.

[0028] The embodiments of the present application are given for the purpose of illustration and description, and are not exhaustive or limit the present application to the disclosed form. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are chosen and described in order to best explain the principles of the present application and its practical application, and to enable others skilled in the art to understand the present application in order to design various embodiments with various modifications for specific use.

Claims

1. A multi-layered composite eco-friendly packaging bag comprising a bag body (1) and a protective assembly (2), characterized in that: The packaging bag body (1) is an integrated structure, the protection assembly (2) is arranged on the surface of the packaging bag body (1), and the protection assembly (2) comprises a polyester film (201), a nylon outer protective layer (202), a polyethylene moisture-proof inner bag (203), a polypropylene reinforcing layer (204) and a bamboo fiber antibacterial layer (205), the polyester film (201) is arranged on the outer surface of the packaging bag body (1), and the outer side of the polyester film (201) is provided with the nylon outer protective layer (202), the inner side of the packaging bag body (1) is connected with the polyethylene moisture-proof inner bag (203), and the inner surface of the polyethylene moisture-proof inner bag (203) is provided with the polypropylene reinforcing layer (204), the inner side of the polypropylene reinforcing layer (204) is connected with the bamboo fiber antibacterial layer (205), and the bamboo fiber antibacterial layer (205), the polypropylene reinforcing layer (204) and the polyethylene moisture-proof inner bag (203) are sequentially arranged from inside to outside.

2. The multi-layered composite eco-friendly packaging bag according to claim 1, wherein, The packaging bag body (1) is a flexible structure, and the front side of the packaging bag body (1) is provided with a storage sub-bag (3).

3. The multi-layered composite eco-friendly packaging bag according to claim 1, wherein, The lower side of the packaging bag body (1) is provided with a reinforcing base (4), and the inner surface of the upper end of the reinforcing base (4) is tightly connected with the outer surface of the lower end of the nylon outer protective layer (202).

4. The multi-layered composite eco-friendly packaging bag according to claim 3, wherein, The reinforcing base (4) is an integrated structure, and the inside lower end of the reinforcing base (4) is filled with EPE pearl wool (5).

5. The multi-layered composite eco-friendly packaging bag according to claim 1, wherein, The inner side of the upper end of the bamboo fiber antibacterial layer (205) is provided with a dustproof pad (6), and the surface of the dustproof pad (6) is provided with a sealing strip (7).

6. The multi-layered composite eco-friendly packaging bag according to claim 1, wherein, The surface of the packaging bag body (1) is provided with a connecting assembly (8) for connection, and the connecting assembly (8) comprises a connecting piece (801), an elongated belt (802), a connecting handle (803) and a connecting hole (804), and the connecting piece (801) is arranged on the upper surface of the packaging bag body (1).

7. A multi-layered composite eco-friendly packaging bag as claimed in claim 6, wherein, The outer side of the connecting piece (801) is connected with the elongated belt (802), and the upper end of the elongated belt (802) is provided with the connecting handle (803), and the lower end of the connecting handle (803), the upper and lower ends of the elongated belt (802) and the surface of the connecting piece (801) are provided with the connecting hole (804).

8. The multi-layered composite eco-friendly packaging bag according to claim 6, wherein, The connecting assembly (8) further comprises a connecting barrel (805) and a fixing piece (806), and the inner side of the connecting hole (804) is provided with the connecting barrel (805), and the inner side of the connecting barrel (805) is connected with the fixing piece (806).

Citation Information

Patent Citations

  • Environment-friendly packaging bag

    CN213503736U