Multi-compartment packaging bag
By designing multi-compartment packaging bags and using heat-sealing tape and film to separate the cavities, the problem of cost and space waste caused by storing multiple containers is solved, achieving the goal of saving materials and space while extending shelf life and ensuring the effectiveness of the contents.
Patent Information
- Application Number
- CN202520618289.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-03
- Publication Date
- 2026-02-27
- Estimated Expiration
- 2035-04-03
AI Technical Summary
In existing technologies, products that require different components to be stored separately use multiple independent packaging containers, which increases material costs and transportation space costs, and is also detrimental to the environment.
Design a multi-compartment packaging bag with a front and back bag body, which is divided into multiple cavities by heat-sealing tape and film. The cavity is sealed by a loose sealing tape, and the contents are mixed by a screw cap structure.
Separating different contents within a single package saves packaging materials and transportation space, improves environmental friendliness, extends the shelf life of the contents, and ensures their effectiveness.
Smart Images

Figure CN223949774U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to packing technical field, concretely relates to a multi-compartment packing bag. BACKGROUND
[0002] In the prior art, many products need to be stored separately to avoid chemical reaction or physical mixing during transportation and storage. The traditional solution is to use multiple independent packaging containers, which not only increases the material cost, but also increases the space requirement for transportation and storage. For example, the existing hair dye cream is usually composed of multiple bottles, one of which contains a dyeing agent, and the other contains an oxidizing agent. The dyeing agent contains pigment, and the oxidizing agent is used to mix the dyeing agent with the oxidizing agent. The oxidizing agent oxidizes the dye and makes it penetrate into the hair better, but it also requires two containers to contain the dyeing agent and the dyeing agent, which increases the packaging cost and is not conducive to the space cost and environmental protection of transportation. SUMMARY
[0003] The utility model aims at providing a multi-compartment packing bag with multiple cavities for storing different contents.
[0004] In order to achieve the above purpose, the utility model provides a multi-compartment packing bag, which comprises:
[0005] The packing bag body has front and back layers, and the four edges around the front and back layers are heat sealed to form a sealed bag body in a flat shape. The packing bag body is provided with a sealing cover on one corner;
[0006] The packing bag body is heat sealed on the inner side of the sealing cover to form a heat sealing strip. The heat sealing strip has a sharp corner, which faces the inner side of the packing bag body. The heat sealing strip separates the packing bag body into a first space between the heat sealing strip and the sealing cover and a second space inside the packing bag body except the first space;
[0007] The packing bag has at least one layer of film inside the second space. The second space is divided into at least two cavities by the film. The edges of the film are heat sealed with the four edges around the packing bag body. The edges of the film close to the heat sealing strip are heat sealed at the edges of the heat sealing strip.
[0008] Further, the heat sealing strength of the heat sealing strip is 6N / 15mm to 12N / 15mm.
[0009] Further, the heat sealing strip further extends a virtual sealing strip towards the second space. The virtual sealing strip is heat sealed by the front and back layers of the packing bag body and the film in the second space. The virtual sealing strip seals each cavity in the second space.
[0010] Further, the heat sealing strength of the virtual sealing strip is less than that of the heat sealing strip, and the heat sealing strength of the virtual sealing strip is 1N / 15mm to 2N / 15mm.
[0011] Further, the virtual sealing band width is 1mm.
[0012] Further, the sealing cover is a screw cover structure.
[0013] Further, the width of the heat sealing band is 2mm to 5mm.
[0014] Further, the material of the packaging bag body is any one of polyethylene, polypropylene or composite film.
[0015] Further, the material of the film is any one of polyethylene, polypropylene or composite film.
[0016] Further, the heat sealing band is V-shaped or arc-shaped.
[0017] After the above scheme is adopted, the utility model can store different contents in a single packaging bag, and the contents can be squeezed out and used together when needed, so as to save packaging materials and transportation space cost, improve environmental protection, prolong the shelf life of the contents and ensure the effectiveness of the contents. BRIEF DESCRIPTION OF DRAWINGS
[0018] Figure 1 It is a structural schematic view of the utility model.
[0019] Figure 2 It is a cross-sectional view of the second space of the utility model.
[0020] Explanation of reference numerals:
[0021] 1, packaging bag body; 11, surface layer; 2, film; 3, sealing cover; 4, heat sealing band; 41, sharp corner; a, first space; b, second space; b1, first cavity; b2, second cavity; b3, third cavity. DETAILED DESCRIPTION
[0022] In order to further explain the technical scheme of the utility model, the utility model will be described in detail through specific embodiments.
[0023] Reference Figure 1 , Figure 2For an embodiment of the utility model, multi-compartment packaging bag includes packaging bag body 1, packaging bag body 1 has two face layers 11, the periphery of two face layers 11 is heat sealed to form a sealed bag body in flat shape, and the embodiment is a square bag body, and the sealing cover 3 is arranged on one corner of packaging bag body 1. Packaging bag body 1 is heat sealed to form a heat sealing tape 4 on the inner side of sealing cover 3, the heat sealing tape 4 has a sharp corner 41, the sharp corner 41 is towards the inner side of packaging bag body 1, and the heat sealing tape 4 divides packaging bag body 1 into the first space a between the heat sealing tape 4 and sealing cover 3 and the second space b except the first space a in packaging bag body 1. Further, the film 2 as the separating layer is arranged in the second space b in packaging bag body 1, and the second space b is divided into at least two cavities by the film 2, the edge of film 2 is heat sealed along with the periphery of four edges of packaging bag body 1, and the edge of film 2 close to the heat sealing tape 4 is just heat sealed at the edge of heat sealing tape 4.
[0024] Preferably, the heat sealing tape 4 is V-shaped or arc-shaped, and in the embodiment, the heat sealing tape 4 is arc-shaped, and the sharp corner 41 is towards the second space b, so that the user can first break the heat sealing tape 4 at the sharp corner 41 when extruding the content, and the content can be smoothly extruded. The heat sealing strength of the heat sealing tape 4 can be 6N / 15mm to 12N / 15mm, so that the user can break the heat sealing tape 4 by extruding the content.
[0025] The multi-compartment packaging bag of the embodiment is rectangular, and the sectional view of the second space b is shown in Fig. 2. Figure 2 The sectional view of the second space b has two films 2 and three cavities (represented as the first cavity b1, the second cavity b2 and the third cavity b3 in the figure). In this way, when the content is filled into the multi-compartment packaging bag, different contents can be injected into the respective cavities from the bottom, and then the heat sealing of the bottom edge is performed. Therefore, the utility model can store different contents in a single packaging bag, so as to save the packaging material and space cost of transportation and improve the environmental protection.
[0026] Further, the side of the heat sealing tape 4 towards the second space b can further extend a virtual sealing tape (not shown in the figure), and the virtual sealing tape is formed by heat sealing the front and back layers 11 of the packaging bag body 1 of the second space b and the film 2. The virtual sealing tape seals the respective cavities in the second space b. The heat sealing strength of the virtual sealing tape is less than that of the heat sealing tape 4, and preferably, the heat sealing strength of the virtual sealing tape is 1N / 15mm to 2N / 15mm, and the width of the virtual sealing tape is 1mm. In this way, it is further ensured that the contents in the respective cavities will not be mixed with each other due to accidental extrusion when the multi-compartment packaging bag is transported or is in the shelf period.
[0027] When the contents in the multi-compartment packaging bag need to be extruded and mixed for use, the user can extrude the contents towards the heat-seal band 4, so that the contents in the first, second and third cavities b1, b2, b3 are first gathered at the position behind the pointed corner 41 of the heat-seal band 4, and further extrusion makes the contents in each cavity first break through the virtual seal band and then reach the pointed corner 41 of the heat-seal band 4, and the contents are extruded to expand the breakage at the pointed corner 41 to the heat-seal band 4 on both sides, so that the contents in each cavity can smoothly pass through the heat-seal band 4 into the first space a and be extruded from the sealed cover 3 (when the virtual seal band is not provided, the contents can be directly gathered at the position behind the pointed corner 41 to extrude and break through the heat-seal band 4). In this way, the contents in different cavities in the multi-compartment packaging bag can be extruded and mixed only after breaking through the pointed corner 41 of the heat-seal band 4, so that the shelf life of the contents is prolonged and the effectiveness of the contents is ensured.
[0028] In this embodiment, the sealed cover 3 is a screw cap structure.
[0029] Preferably, the width of the heat-seal band 4 is 2-5 mm.
[0030] Preferably, the material of the packaging bag body 1 and the film 2 is any one of polyethylene, polypropylene or a composite film.
[0031] The above is only one embodiment of the present application and does not limit the present application. Any modification, equivalent replacement and improvement within the spirit and principles of the present application shall be included in the protection scope of the present application.
Claims
1. A multi-compartment packaging bag comprising a packaging bag body having front and back layers, the periphery of the front and back layers being heat-sealed to form a flat sealed bag body, the packaging bag body having a sealing cover on one corner, characterized in that: the packaging bag body has a heat-seal strip on the inner side of the sealing cover, the heat-seal strip having a sharp corner, the sharp corner facing the inner side of the packaging bag body, the heat-seal strip separating the packaging bag body into a first space between the heat-seal strip and the sealing cover and a second space in the packaging bag body other than the first space; the packaging bag body having at least one film in the second space, the second space being divided into at least two cavities by the film, the edges of the film being heat-sealed to the periphery of the packaging bag body, the edges of the film close to the heat-seal strip being heat-sealed to the edges of the heat-seal strip. The heat-seal strength of the heat-seal strip is 6N / 15mm to 12N / 15mm. The side of the heat-seal strip facing the second space extends a virtual heat-seal strip, the virtual heat-seal strip being heat-sealed by the front and back layers of the packaging bag body in the second space and the film, the virtual heat-seal strip sealing the cavities in the second space.
2. The multi-compartment bag of claim 1, wherein, The heat-seal strength of the virtual heat-seal strip is less than that of the heat-seal strip, the heat-seal strength of the virtual heat-seal strip being 1N / 15mm to 2N / 15mm.
3. The multi-compartment bag according to claim 1 or 2, wherein The width of the virtual heat-seal strip is 1mm.
4. The multi-compartment bag of claim 3, wherein, The sealing cover is a screw cover structure.
5. The multi-compartment bag of claim 3, wherein, The width of the heat-seal strip is 2mm to 5mm.
6. The multi-compartment bag of claim 1, wherein, The material of the packaging bag body is any one of polyethylene, polypropylene or composite film.
7. The multi-compartment bag of claim 1, wherein, The material of the film is any one of polyethylene, polypropylene or composite film.
8. The multi-compartment bag of claim 1, wherein, The heat-seal strip is V-shaped or arc-shaped.
9. The multi-compartment bag of claim 1, wherein, 10. The multi-compartment bag of claim 1, wherein,