Heat-sealing tear packaging bag with built-in zipper
By designing the built-in zipper and chain structure in the packaging bag, the problem of the tear of the existing heat seal packaging bag cannot be controlled and cannot be closed again, and the regular tear and secondary seal of the bag mouth is achieved, which improves the preservation of food Term and consumption experience.
Patent Information
- Application Number
- CN202421072404.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-16
- Publication Date
- 2025-02-18
- Estimated Expiration
- 2034-05-16
Smart Images
Figure CN222497281U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of packaging bags, in particular to a packaging bag with a built-in zipper and heat-sealed tear-off edge. Background Art
[0002] Flexible packaging refers to packaging whose container shape can change after filling or taking out the contents. Various bags, boxes, sleeves, and packages made of paper, aluminum foil, plastic film, and their composites are all flexible packaging. Flexible packaging usually uses gravure printing technology to achieve the decorative pattern on the packaging surface, and then achieve large-scale production. Conventional heat-sealed packaging bags need to be torn open to take out food. The shape and size of the randomly torn bag opening cannot be controlled, the bag body is seriously damaged, and the packaging bag cannot be closed again, which is not conducive to the preservation of uneaten food. Utility Model Content
[0003] Therefore, the main technical problem solved by the utility model is to provide a packaging bag with a built-in zipper and heat-sealed tear edge, which has a regular tear edge and is conducive to food preservation.
[0004] To achieve the above purpose, the technical solution of the embodiment of the utility model is implemented as follows:
[0005] A packaging bag with a built-in zipper and a heat-sealed tear-off edge comprises a bag body and an easy-tear line, wherein the bag body comprises a first bag layer, a second bag layer, a convex chain and a concave chain, the periphery of the first bag layer and the periphery of the second bag layer are heat-sealed into one, the convex chain is arranged on the inner side of the first bag layer and extends along the width direction of the bag body, the concave chain is arranged on the inner side of the second bag layer and cooperates with the convex chain; the easy-tear line is U-shaped, and the easy-tear line is arranged at the bag opening of the bag body to assist in tearing open the heat-sealed bag opening.
[0006] Preferably, it further comprises a pull head, which is clamped on the outer sides of the male chain link and the female chain link and is used for pulling the male chain link and the female chain link together.
[0007] Preferably, the first bag layer and the second bag layer are both formed by composite multi-layer films.
[0008] Preferably, the convex chain is fixed to the inner side of the first bag layer by hot melt, and the concave chain is fixed to the inner side of the second bag layer by hot melt.
[0009] Preferably, a hanging hole is provided at the bag opening of the bag body.
[0010] In the above technical solution of the present application, the built-in zipper heat-sealed tear-off packaging bag includes a bag body and an easy-tear line. Under the guidance of the easy-tear line, consumers can easily tear open the packaging bag, and the tear is regular, and the shape and size are controllable. The bag body is provided with a convex chain and a concave chain, and the convex chain and the concave chain cooperate with each other to seal the packaging bag for a second time, which is conducive to the preservation of uneaten food. Using the built-in zipper heat-sealed tear-off packaging bag of the present application to package food can effectively increase the secondary shelf life of the food and enhance the consumer experience. BRIEF DESCRIPTION OF THE DRAWINGS
[0011] Figure 1 This is a front view of a packaging bag with a built-in zipper and heat-sealed tear-off edge in an embodiment of the present application;
[0012] Figure 2 It is a partial cross-sectional view of a packaging bag with a built-in zipper and heat-sealed tear-off edge in an embodiment of the present application.
[0013] Description of Figure Numbers:
[0014] 100-bag body, 110-first bag layer, 120-second bag layer, 130-convex chain, 140-concave chain, 200-easy tear line, 300-pull head, 400-hanging hole. DETAILED DESCRIPTION
[0015] The technical solution of the utility model is further elaborated in detail below in conjunction with the drawings and specific embodiments of the specification. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by technicians in the technical field of the utility model. The terms used herein in the specification of the utility model are only for the purpose of describing specific embodiments and are not intended to limit the utility model. In the following description, the expression "some embodiments" is involved, which describes a subset of all possible embodiments, but it should be understood that "some embodiments" can be the same subset or different subsets of all possible embodiments, and can be combined with each other without conflict.
[0016] It should also be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "inside", "outside", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation method.
[0017] Please refer to the attached Figure 1 To Attachment Figure 2The present application provides a packaging bag with a built-in zipper heat-sealed tear-off opening, comprising a bag body 100 and an easy-tear line 200. The bag body 100 comprises a first bag layer 110, a second bag layer 120, a convex chain 130 and a concave chain 140. The periphery of the first bag layer 110 and the periphery of the second bag layer 120 are heat-sealed to form a closed fresh-keeping space. The convex chain 130 is arranged on the inner side of the first bag layer 110 (i.e., the side of the first bag layer 110 facing the second bag layer 120) and extends along the width direction of the bag body 100. The concave chain 140 is arranged on the inner side of the second bag layer 120 (i.e., the side of the second bag layer 120 facing the first bag layer 110) and cooperates with the convex chain 130. The easy-tear line 200 is U-shaped and is arranged at the bag opening of the bag body 100 to assist in tearing the heat-sealed bag opening.
[0018] When eating for the first time, the consumer can tear the bag opening of the bag body 100 along the easy tear line 200. Under the guidance of the easy tear line 200, the consumer can tear the packaging bag conveniently, and the tearing opening is regular and the shape and size are controllable. The convex chain 130 and the concave chain 140 inside the bag body 100 cooperate to seal the packaging bag for the second time, which is conducive to the preservation of uneaten food.
[0019] In the above technical solution of the present application, the built-in zipper heat-sealed tear-off packaging bag includes a bag body 100 and an easy-tear line 200. Under the guidance of the easy-tear line 200, consumers can easily tear open the packaging bag, and the tear is regular, and the shape and size are controllable. The bag body 100 is provided with a convex chain 130 and a concave chain 140. The convex chain 130 and the concave chain 140 cooperate with each other to seal the packaging bag for a second time, which is conducive to the preservation of uneaten food. Using the built-in zipper heat-sealed tear-off packaging bag of the present application to package food can effectively increase the secondary shelf life of the food and enhance the consumer experience.
[0020] As a preferred embodiment of the utility model, it also includes a pull head 300, which is clamped on the outer side of the convex chain 130 and the concave chain 140, and is used to pull the convex chain 130 and the concave chain 140 together. By pulling the pull head 300, the various parts of the convex chain 130 and the concave chain 140 can be meshed in sequence to achieve a secondary sealing effect. The convex chain 130 and the concave chain 140 are compacted by the pull head 300, and the sealing effect is better. Since the bag mouth of the bag body 100 presents a U-shaped notch after tearing the easy tear line 200, it can effectively prevent the pull head 300 from loosening.
[0021] Preferably, the first bag layer 110 and the second bag layer 120 are both made of a multi-layer film, and the film on the outer layer has oil and water resistance. The convex chain 130 can be fixed to the inner side of the first bag layer 110 by hot melt, and the concave chain 140 can be fixed to the inner side of the second bag layer 120 by hot melt, and the fixed position of the concave chain 140 corresponds to the fixed position of the convex chain 130. Furthermore, a hanging hole 400 is provided at the bag mouth of the bag body 100 for easy hanging on the shelf.
[0022] The above are only specific implementations of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model. The protection scope of the utility model should be based on the protection scope of the claims.
Claims
1. A heat-sealed tear-off packaging bag with a built-in zipper, characterized in that: The bag body comprises a bag body and an easy-tear line, wherein the bag body comprises a first bag layer, a second bag layer, a convex chain and a concave chain, the periphery of the first bag layer and the periphery of the second bag layer are heat-sealed into one, the convex chain is arranged on the inner side of the first bag layer and extends along the width direction of the bag body, the concave chain is arranged on the inner side of the second bag layer and cooperates with the convex chain; the easy-tear line is U-shaped, and the easy-tear line is arranged at the bag opening of the bag body to assist in tearing open the heat-sealed bag opening.
2. The heat-sealed tear-off packaging bag with built-in zipper according to claim 1, characterized in that: It also includes a pull head, which is clamped on the outer sides of the male chain and the female chain and is used for pulling the male chain and the female chain together.
3. The heat-sealed tear-off packaging bag with built-in zipper according to claim 1, characterized in that: The first bag layer and the second bag layer are both formed by compounding multiple layers of films.
4. The heat-sealed tear-off packaging bag with built-in zipper according to claim 1, characterized in that: The convex chain is fixed to the inner side of the first bag layer by hot melting, and the concave chain is fixed to the inner side of the second bag layer by hot melting.
5. The heat-sealed tear-off packaging bag with built-in zipper according to claim 1, characterized in that: The bag opening of the bag body is provided with a hanging hole.