Storage bag with double-track zipper

By designing a double-track zipper and a multi-layer structure of the storage bag, the problem of poor sealing of the food bag is solved, achieving better preservation effect and durability and extending the service life.

CN223371669UActive Publication Date: 2025-09-23CANGNAN COUNTY XINLI LEATHER PLASTIC CRAFTS CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Application Number
CN202422507498.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-10-17
Publication Date
2025-09-23
Estimated Expiration
2034-10-17

AI Technical Summary

Technical Problem

Existing plastic bags for food storage lack edge sealing design, which makes the bag opening easy to open and has poor sealing, affecting the preservation effect and increasing the risk of food contamination.

Method used

A storage bag with a double-track zipper is designed. The storage bag body adopts a mushroom-shaped parent-child clamp structure and is made of multi-layer materials, including a base material layer, an antibacterial film layer, a thermal insulation coating, a nano-coating and a wear-resistant layer. The sealing performance is enhanced by double-track sealing, and rounded corners are set at the bottom for easy cleaning.

Benefits of technology

It improves the sealing performance, isolates oxygen, carbon dioxide and moisture, keeps food fresh, extends its service life, reduces waste and complies with environmental protection concepts.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN223371669U_ABST
    Figure CN223371669U_ABST
Patent Text Reader

Abstract

The utility model discloses a storage bag with a double-track zipper, which relates to the technical field of storage bags and comprises a storage bag body, a sealing mechanism is fixedly connected above the storage bag body through hot melting, a first pressing edge is arranged at the edge of the storage bag body, and a second pressing edge is arranged on the surface of the storage bag body and the inner side of the first pressing edge. Round corners are arranged on the left side and the right side of the bottom of the storage bag body, the storage bag body is composed of a base material layer, an antibacterial film layer, a heat insulation coating, a nanometer coating and a wear-resistant layer, the antibacterial film layer is arranged on the outer side of the base material layer, the antibacterial film layer is coated with the heat insulation coating, the heat insulation coating is coated with the nanometer coating, and the wear-resistant layer is arranged on the outer side of the nanometer coating. And a wear-resistant layer is fixedly connected to the outer side of the nano coating. The storage bag has the advantages that the first sub-clamp and the first mother clamp are mutually buckled, the second sub-clamp and the second mother clamp are mutually buckled to form double-track sealing, and the sealing performance of the storage bag body is enhanced through the double-track zipper design.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] The utility model relates to the technical field of storage bags, in particular to a storage bag with a double-track zipper. Background Art

[0002] The main materials of food bags are generally polyethylene and polypropylene. Food bags are widely used in food packaging. Non-toxic plastic bags are milky white, translucent or colorless and transparent, flexible, smooth to the touch, and have a waxy surface. Toxic plastic bags are turbid or light yellow in color and feel sticky and astringent. However, formally produced plastic food packaging is safe, but you must also pay attention to the method of use, otherwise it will bring negative effects.

[0003] Some existing plastic bags for food storage do not have sealed edges, and the bag openings are easily opened, thereby reducing the sealing effect. Poor sealing may cause the food to be affected by air and moisture, reducing the preservation effect, and the opening may easily cause the food to be exposed to the external environment, increasing the risk of contamination. In response to the above problems, a storage bag with a double-track zipper is proposed to solve them. Utility Model Content

[0004] In order to solve the above technical problems, a storage bag with a double-track zipper is provided, which solves the problem that some of the current existing plastic bags for food storage have no sealed edges and the bag openings are easily opened, thereby reducing the sealing effect. Poor sealing may cause the food to be affected by air and moisture, reducing the preservation effect, and the opening may easily cause the food to be exposed to the external environment, increasing the risk of contamination.

[0005] In order to achieve the above purpose, the technical solution adopted by the present invention is: a storage bag with a double-track zipper, including a storage bag body, a sealing mechanism fixedly connected to the top of the storage bag body by hot melt, a first pressing edge is provided at the edge of the storage bag body, a second pressing edge is provided on the surface of the storage bag body and the inner side of the first pressing edge, and rounded corners are provided on the left and right sides of the bottom of the storage bag body. The storage bag body is composed of a base material layer, an antibacterial film layer, a thermal insulation coating, a nano coating and a wear-resistant layer. The antibacterial film layer is provided on the outside of the base material layer, the thermal insulation coating is coated on the outside of the antibacterial film layer, the nano coating is coated on the outside of the thermal insulation coating, and the outside of the nano coating is fixedly connected with a wear-resistant layer.

[0006] Preferably, the sealing mechanism includes a first side wall, which is fixedly connected to the top of the storage bag body through a third pressing edge, a first sub-clip is fixedly connected to the inner upper end of the first side wall, and a second female clip is fixedly connected to the inner lower end of the first side wall.

[0007] Preferably, the sealing mechanism also includes a second side wall, the first side wall is fixedly connected to the top of the storage bag body through a third pressure edge, the first mother clip is fixedly connected to the inner side of the second side wall at a position corresponding to the first sub-clip, and the second mother clip is fixedly connected to the inner side of the second side wall at a position corresponding to the second mother clip.

[0008] Preferably, the first sub-clip is mushroom-shaped and fits in with the interior of the first female clip, and the second sub-clip is mushroom-shaped and fits in with the interior of the second female clip.

[0009] Preferably, the structure of the nanocoating is a micro-protrusion, columnar or porous surface.

[0010] Preferably, the thickness of the thermal insulation coating is 15 to 100 microns, and the thickness of the antibacterial film layer is 0.8 to 1.2 microns.

[0011] Preferably, the storage bag body is made of polyethylene, polypropylene or high-pressure linear polyethylene.

[0012] Preferably, the sealing mechanism is made of plastic or polyethylene.

[0013] Compared with the existing technology, the advantages of the present invention are: the present invention forms a double-track seal by setting a sealing mechanism, through the mutual buckling of the first sub-clip and the first mother clip, and the mutual buckling of the second sub-clip and the second mother clip. The double-track zipper design enhances the sealing performance of the storage bag body, can effectively isolate oxygen, carbon dioxide, water and odor, etc., to ensure the freshness and quality of the items in the bag, and the double-track structure is stronger and more wear-resistant than the general single track. This type of storage bag has the characteristics of reusability, and the double-track zipper further extends its service life, reduces waste, and complies with the concept of environmental protection. The rounded corners set at the bottom reduce sanitary dead corners, and the storage bag body is easier to clean when it is washed again. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural diagram of the utility model;

[0015] Figure 2 This is a schematic diagram of the sealing mechanism structure in the present utility model;

[0016] Figure 3 This is a structural diagram of the storage bag body in the utility model;

[0017] Figure 4 for Figure 1 A partial enlarged view of point A in the middle.

[0018] The numbers in the figure are:

[0019] 1. Storage bag body; 2. Sealing mechanism; 201. First side wall; 202. Second side wall; 203. First sub-clip; 204. First mother clip; 205. Second mother clip; 206. Second sub-clip; 3. First pressing edge; 4. Second pressing edge; 5. Third pressing edge; 6. Rounded corners; 7. Wear-resistant layer; 8. Nano coating; 9. Thermal insulation coating; 10. Antibacterial film layer; 11. Base material layer. DETAILED DESCRIPTION

[0020] The following description is intended to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments described below are merely examples, and those skilled in the art may conceive of other obvious variations.

[0021] Reference Figure 1-4 As shown, a storage bag with a double-track zipper includes a storage bag body 1, a sealing mechanism 2 is fixedly connected to the top of the storage bag body 1 by hot melting, a first pressing edge 3 is provided at the edge of the storage bag body 1, a second pressing edge 4 is provided on the surface of the storage bag body 1 and the inner side of the first pressing edge 3, and rounded corners 6 are provided on the left and right sides of the bottom of the storage bag body 1. The rounded corner 6 design reduces sanitary dead corners and is convenient for cleaning and maintaining hygiene. The storage bag body 1 is composed of a base material layer 11, an antibacterial film layer 10, a thermal insulation coating 9, a nano coating 8 and a wear-resistant layer 7. The antibacterial film layer 10 is provided on the outside of the base material layer 11, the thermal insulation coating 9 is coated on the outside of the antibacterial film layer 10, and the nano coating 8 is coated on the outside of the thermal insulation coating 9. The wear-resistant layer 7 is fixedly connected to the outside of the nano coating 8 as the outermost layer to resist wear during daily use and cleaning, thereby extending the service life of the storage bag.

[0022] Specifically, the sealing mechanism 2 includes a first side wall 201, which is fixedly connected to the top of the storage bag body 1 through a third pressing edge 5, a first sub-clamp 203 is fixedly connected to the inner upper end of the first side wall 201, and a second female clamp 205 is fixedly connected to the inner lower end of the first side wall 201.

[0023] Specifically, the sealing mechanism 2 also includes a second side wall 202, the first side wall 201 is fixedly connected to the top of the storage bag body 1 through a third pressing edge 5, and a first mother clamp 204 is fixedly connected to the inner side of the second side wall 202 at a position corresponding to the first sub-clamp 203, and a second sub-clamp 206 is fixedly connected to the inner side of the second side wall 202 at a position corresponding to the second mother clamp 205. The first sub-clip 203 and the first mother clamp 204, and the second sub-clip 206 and the second mother clamp 205 are mutually fastened to form a double-track seal, which is easy to operate and has a firm seal.

[0024] Specifically, the first sub-clip 203 is mushroom-shaped and fits in with the interior of the first mother clip 204, and the second sub-clip 206 is mushroom-shaped and fits in with the interior of the second mother clip 205. The mushroom-shaped design enables the sub-clip to easily enter the interior of the mother clip and remain stable, thereby improving the reliability and durability of the seal.

[0025] Specifically, the structure of the nano-coating 8 is a tiny protrusion, columnar or porous surface. The nano-coating 8 with tiny protrusion, columnar or porous surface has super hydrophobicity, making it difficult for liquid to adhere to the surface, forming water droplets and flowing out of the bag body, which can effectively prevent the penetration of water and improve the water splash resistance of the storage bag body 1.

[0026] Specifically, the thickness of the thermal insulation coating 9 is fifteen to one hundred microns. The thermal insulation coating 9 effectively isolates the influence of the external temperature on the items in the bag and maintains the temperature stability of the items. The thickness of the antibacterial film layer 10 is 0.8 to 1.2 microns, which effectively inhibits the growth of bacteria and microorganisms and protects the items in the bag from contamination. The thickness is between 0.8 and 1.2 microns, ensuring the antibacterial effect while maintaining the compactness of the structure.

[0027] Specifically, the material of the storage bag body 1 is polyethylene, polypropylene or high-pressure linear polyethylene. Materials such as polyethylene, polypropylene or high-pressure linear polyethylene have good flexibility and durability and are suitable for making storage bags.

[0028] Specifically, the sealing mechanism 2 is made of plastic or polyethylene.

[0029] Working principle: The first sub-clip 203 and the first mother clip 204 are buckled together, and the second sub-clip 206 and the second mother clip 205 are buckled together to form a double-track seal. The double-track zipper design enhances the sealing performance of the storage bag body 1, and can effectively isolate oxygen, carbon dioxide, water and odor, etc., to ensure the freshness and quality of the items in the bag. Moreover, the double-track structure is stronger and more wear-resistant than the general single track. This type of storage bag has the characteristics of reusability, and the double-track zipper further extends its service life, reduces waste, and complies with the concept of environmental protection. The rounded corners 6 set at the bottom reduce sanitary dead corners, and the storage bag body 1 is easier to clean when washing.

[0030] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions merely illustrate the principles of the present invention. Various changes and improvements are possible without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention. The scope of protection claimed for the present invention is defined by the appended claims and their equivalents.

Claims

1. A storage bag with a double-track zipper, characterized in that: The invention comprises a storage bag body (1), wherein a sealing mechanism (2) is fixedly connected to the top of the storage bag body (1) by hot melting, a first pressing edge (3) is provided at the edge of the storage bag body (1), a second pressing edge (4) is provided on the surface of the storage bag body (1) and the inner side of the first pressing edge (3), and rounded corners (6) are provided on the left and right sides of the bottom of the storage bag body (1). The storage bag body (1) is composed of a base material layer (11), an antibacterial film layer (10), a thermal insulation coating (9), a nano coating (8) and a wear-resistant layer (7), wherein the antibacterial film layer (10) is provided on the outside of the base material layer (11), the thermal insulation coating (9) is coated on the outside of the antibacterial film layer (10), the nano coating (8) is coated on the outside of the thermal insulation coating (9), and the wear-resistant layer (7) is fixedly connected to the outside of the nano coating (8).

2. The storage bag with a double-track zipper according to claim 1, characterized in that: The sealing mechanism (2) comprises a first side wall (201), the first side wall (201) being fixedly connected to the upper part of the storage bag body (1) via a third pressing edge (5), a first sub-clamp (203) being fixedly connected to the inner upper end of the first side wall (201), and a second female clamp (205) being fixedly connected to the inner lower end of the first side wall (201).

3. The storage bag with a double-track zipper according to claim 2, characterized in that: The sealing mechanism (2) further comprises a second side wall (202), the first side wall (201) being fixedly connected to the upper portion of the storage bag body (1) via a third pressing edge (5), a first female clamp (204) being fixedly connected to the inner side of the second side wall (202) at a position corresponding to the first sub-clamp (203), and a second sub-clamp (206) being fixedly connected to the inner side of the second side wall (202) at a position corresponding to the second female clamp (205).

4. The storage bag with a double-track zipper according to claim 3, characterized in that: The first sub-clip (203) is mushroom-shaped and fits inside the first female clip (204), and the second sub-clip (206) is mushroom-shaped and fits inside the second female clip (205).

5. The storage bag with a double-track zipper according to claim 1, characterized in that: The structure of the nano coating (8) is a tiny protrusion, columnar or porous surface.

6. The storage bag with a double-track zipper according to claim 1, characterized in that: The thickness of the heat-insulating coating (9) is 15 to 100 micrometers, and the thickness of the antibacterial film layer (10) is 0.8 to 1.2 micrometers.

7. The storage bag with a double-track zipper according to claim 1, characterized in that: The material of the storage bag body (1) is polyethylene, polypropylene or high-pressure linear polyethylene.

8. The storage bag with a double-track zipper according to claim 1, characterized in that: The sealing mechanism (2) is made of plastic or polyethylene.