Suction nozzle bag

By designing a spout bag with arc-shaped sidewalls and a composite material structure, the problems of inconvenient gripping and viscous liquid residue are solved, achieving efficient extrusion and environmentally friendly recycling.

CN224159688UActive Publication Date: 2026-04-24TIANJIN TINGZHENG PRINT & PACKING MATERIAL CO LTD
View PDF 2 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
TIANJIN TINGZHENG PRINT & PACKING MATERIAL CO LTD
Filing Date
2025-04-24
Publication Date
2026-04-24

AI Technical Summary

Technical Problem

The existing spout pouches have straight edges on both sides, which makes them difficult to hold and can easily lead to viscous liquid residue. The existing improved structure is prone to material accumulation at the bottom.

Method used

The bag is designed with a first concave arc sidewall and a second convex arc sidewall, and the bottom of the bag is flat. It is a composite material consisting of an alumina-coated PET film layer, a paper base layer, and a heat-sealed PE film layer to increase barrier properties and recyclability.

Benefits of technology

It improves grip comfort and viscous liquid extrusion efficiency, reduces viscous liquid residue, and the material is recyclable.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224159688U_ABST
    Figure CN224159688U_ABST
Patent Text Reader

Abstract

The utility model discloses a suction nozzle bag which comprises bag pieces, the bag pieces are matched together to form a bag body, the bag body is provided with a bag bottom and a bag top, the bag bottom is in a plane shape, the bag top is provided with a bag nozzle, the bag body is provided with a first arc side wall and a second arc side wall, and the first arc side wall is connected with the second arc side wall. The first arc side wall is connected with the bag bottom, the second arc side wall is connected with the bag top, the first arc side wall is concave inwards, and the second arc side wall is convex outwards. The suction nozzle bag has the advantages that the side wall of the bag body is in the arc shape, a user can conveniently extrude sticky liquid in the bag body through hand holding, meanwhile, dead corners where the sticky liquid is prone to being accumulated do not exist at the bag bottom, and the sticky liquid in the bag body can be extruded out to the maximum extent.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to the field of packaging tools, and in particular to a spout bag. Background Technology

[0002] Spout pouches are a commonly used type of beverage packaging. The structure of current spout pouches, as shown in patent publication CN307040621S, is generally square-shaped. This square shape presents a problem: the two sides of the pouch are straight. Since users typically hold the pouch by its edges, these straight edges are not only difficult to grip but also make it hard to squeeze out all the viscous liquid. To improve grip comfort, patent publication CN305686178S discloses a pouch with rounded sides. However, this pouch has an outward-convex bottom arc, which makes it easy for material to accumulate at the bottom. Therefore, this type of pouch has a high material residue rate when extruding material. Utility Model Content

[0003] This utility model addresses the above-mentioned problems by proposing a mouthpiece bag.

[0004] The technical solution adopted by this utility model is as follows:

[0005] A spout pouch includes pouch panels that fit together to form a pouch body. The pouch body has a bottom and a top. The bottom is flat, and the top has a spout. The pouch body has a first arcuate sidewall and a second arcuate sidewall. The first arcuate sidewall is connected to the second arcuate sidewall, which is also connected to the bottom. The second arcuate sidewall is connected to the top. The first arcuate sidewall is concave, and the second arcuate sidewall is convex.

[0006] In this type of spout bag, the bottom of the bag is flat, which makes it easy to place the bag on a shelf or flat surface. The sidewalls of the bag are composed of a first arc-shaped sidewall and a second arc-shaped sidewall. The first arc-shaped sidewall is concave, and the second arc-shaped sidewall is convex, effectively making the entire sidewall of the bag arc-shaped. This facilitates the squeezing out of the viscous liquid inside the bag. Furthermore, the first arc-shaped sidewall connects to the bottom of the bag, and its concave shape eliminates any dead corners where viscous liquid can easily accumulate, thus maximizing the squeezing out of the viscous liquid inside the bag.

[0007] In summary, the side walls of this type of spout bag are rounded, which makes it easy for users to squeeze out the viscous liquid inside the bag by hand. At the same time, there are no dead corners at the bottom of the bag where viscous liquid can easily accumulate, so that the viscous liquid inside the bag can be squeezed out to the maximum extent.

[0008] Meanwhile, this type of packaging bag has only two curved sidewalls, so there are relatively few dead angles on the sidewalls of the entire bag, which reduces the residue of viscous liquid caused by dead angles inside the bag.

[0009] Optionally, the bag sheet includes an alumina-coated PET film layer, a paper base layer, and a heat-sealable PE film layer, wherein the alumina-coated PET film layer and the heat-sealable PE film layer are located on both sides of the paper base layer.

[0010] The bag is made of an alumina-coated PET film layer, a paper base layer, and a heat-sealed PE film layer. This gives the entire bag good barrier properties. Since it does not contain aluminum foil, the entire bag can be recycled and reused in a paper-plastic separation recycling system.

[0011] Optionally, a coating resin layer is also included, which is disposed between the paper base layer and the alumina-coated PET film layer, and the thickness of the coating resin layer is 20 micrometers to 40 micrometers.

[0012] The function of the resin coating layer is to achieve a composite effect.

[0013] Optionally, it may also include a biaxially oriented PET film layer, which is disposed between the heat-sealed PE film layer and the paper base layer.

[0014] The purpose of placing a biaxially oriented PET film layer between the paper base layer and the heat-sealed PE film layer is to further improve the supporting strength of the bag sheet.

[0015] Specifically, the biaxially oriented PET film layer is bonded to the paper base layer using a water-based PU adhesive.

[0016] Optionally, the thickness of the biaxially oriented PET film is 12 micrometers.

[0017] Optionally, the thickness of the alumina-coated PET film layer is 12 micrometers to 14 micrometers.

[0018] Optionally, the thickness of the heat-sealable PE film layer is 50 micrometers.

[0019] Optionally, the paper base layer is white cardboard.

[0020] Optionally, the basis weight of the paper base layer is 45 g / m².

[0021] Optionally, the nozzle is made of PE material.

[0022] The beneficial effects of this utility model are: the side wall of the bag is arc-shaped, which makes it easy for the user to squeeze out the viscous liquid inside the bag by hand. At the same time, there is no dead corner at the bottom of the bag where viscous liquid can easily accumulate, so that the viscous liquid inside the bag can be squeezed out to the maximum extent. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0024] Figure 1 This is a simplified structural diagram of a spout pouch;

[0025] Figure 2 This is a simplified schematic diagram of the bag's structure.

[0026] The figures are labeled as follows: 11. Bag bottom; 12. First arc sidewall; 13. Second arc sidewall; 14. Bag top; 15. Nozzle; 101. Alumina-coated PET film layer; 102. Coated resin layer; 103. Paper base layer; 104. Biaxially oriented PET film layer; 105. Heat-sealed PE film layer. Detailed Implementation

[0027] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0028] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0029] In the description of this application, it should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. For ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0030] As attached Figure 1 As shown, a mouthpiece bag includes, as attached Figure 2 The bag shown is made using the method described in the attached document. Figure 2 The bag pieces shown are joined together by thermal bonding to form a bag body. The bag body has a bottom 11 and a top 14. The bottom 11 is flat, and the top 14 is provided with a bag mouth. The bag body has a first arcuate sidewall 12 and a second arcuate sidewall 13. The first arcuate sidewall 12 is connected to the second arcuate sidewall 13. The first arcuate sidewall 12 is connected to the bottom 11, and the second arcuate sidewall 13 is connected to the top 14. The first arcuate sidewall 12 is concave, and the second arcuate sidewall 13 is convex.

[0031] In this type of spout bag, the bottom 11 of the bag body is flat, which makes it easy to place the bag on a shelf or a flat surface. At the same time, the side wall of the bag body is composed of a first arc-shaped side wall 12 and a second arc-shaped side wall 13. The first arc-shaped side wall 12 is concave, and the second arc-shaped side wall 13 is convex. This means that the side wall of the entire bag body is arc-shaped, which facilitates the squeezing out of the viscous liquid inside the bag. At the same time, the first arc-shaped side wall 12 is connected to the bottom 11 of the bag, and the first arc-shaped side wall 12 is concave, so that there is no dead corner at the bottom 11 where viscous liquid can easily accumulate. This allows the viscous liquid inside the bag to be squeezed out to the maximum extent.

[0032] In summary, the side walls of this type of spout bag are rounded, which makes it easy for users to squeeze out the viscous liquid inside the bag by hand. At the same time, there are no dead corners at the bottom of the bag where viscous liquid can easily accumulate, so that the viscous liquid inside the bag can be squeezed out to the maximum extent.

[0033] Meanwhile, this type of packaging bag has only two curved sidewalls, so there are relatively few dead angles on the sidewalls of the entire bag, which reduces the residue of viscous liquid caused by dead angles inside the bag.

[0034] As attached Figure 1 and appendix Figure 2 As shown, the bag sheet includes an alumina-coated PET film layer 101, a paper base layer 103, and a heat-sealed PE film layer 105. The alumina-coated PET film layer 101 and the heat-sealed PE film layer 105 are located on both sides of the paper base layer 103.

[0035] The bag is made of an alumina-coated PET film layer 101, a paper base layer 103, and a heat-sealed PE film layer 105. This gives the entire bag good barrier properties. Since it does not contain aluminum foil, the entire bag can be recycled and reused in a paper-plastic separation recycling system.

[0036] As attached Figure 1 and appendix Figure 2 As shown, it also includes a coating resin layer 102, which is disposed between the paper base layer 103 and the alumina-coated PET film layer 101, and the thickness of the coating resin layer 102 is 20 micrometers to 40 micrometers.

[0037] The function of the coating resin layer 102 is to perform a composite effect.

[0038] As attached Figure 1 and appendix Figure 2 As shown, it also includes a biaxially oriented PET film layer 104, which is disposed between the heat-sealed PE film layer 105 and the paper base layer 103.

[0039] The purpose of setting a biaxially oriented PET film layer 104 between the paper base layer 103 and the heat-sealed PE film layer 105 is to further improve the supporting strength of the bag sheet.

[0040] Specifically, the biaxially oriented PET film layer 104 is bonded to the paper base layer 103 by means of water-based PU adhesive.

[0041] As attached Figure 1 and appendix Figure 2 As shown, the thickness of the biaxially oriented PET film 104 is 12 micrometers.

[0042] As attached Figure 1 and appendix Figure 2 As shown, the thickness of the alumina-coated PET film layer 101 is 12 micrometers to 14 micrometers.

[0043] As attached Figure 1 and appendix Figure 2 As shown, the thickness of the heat-sealed PE film layer 105 is 50 micrometers.

[0044] As attached Figure 1 and appendix Figure 2 As shown, the paper base layer 103 is white cardboard.

[0045] As attached Figure 1 and appendix Figure 2 As shown, the basis weight of the paper base layer 103 is 45 g / m².

[0046] As attached Figure 1 and appendix Figure 2 As shown, the suction nozzle 15 is made of PE material.

[0047] In this type of spout bag, the bag sheet used for bag making has good barrier properties. According to actual measurements, its oxygen barrier can reach ≤0.5cm³ / (m²•24h•0.1MPa), and its moisture barrier can reach ≤0.5 ml / (m²•24h•0.1MPa).

[0048] The above-described embodiments only illustrate some aspects of the present invention, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A mouth-pouch comprising a sheet of pouches, the pouches fitting together to form a pouch body, characterised in that, The bag body has a bottom and a top. The bottom is flat, and the top has a spout. The bag body has a first arcuate sidewall and a second arcuate sidewall. The first arcuate sidewall is connected to the second arcuate sidewall. The first arcuate sidewall is connected to the bottom, and the second arcuate sidewall is connected to the top. The first arcuate sidewall is concave, and the second arcuate sidewall is convex.

2. A spout pouch according to claim 1, wherein The bag sheet includes an alumina-coated PET film layer, a paper base layer, and a heat-sealable PE film layer, with the alumina-coated PET film layer and the heat-sealable PE film layer located on opposite sides of the paper base layer.

3. A spout pouch according to claim 2, wherein, It also includes a coating resin layer, which is disposed between the paper base layer and the alumina-coated PET film layer, and the thickness of the coating resin layer is 20 micrometers to 40 micrometers.

4. A spout pouch according to claim 2, wherein It also includes a biaxially oriented PET film layer, which is disposed between the heat-sealed PE film layer and the paper base layer.

5. A spout pouch according to claim 4, wherein, The thickness of the biaxially oriented PET film is 12 micrometers.

6. A spout pouch according to claim 2, wherein The thickness of the alumina-coated PET film is 12 micrometers to 14 micrometers.

7. A spout pouch according to claim 6, wherein The thickness of the heat-sealable PE film layer is 50 micrometers.

8. A spout pouch according to claim 2, characterized in that, The paper base layer is white cardboard.

9. A spout pouch according to claim 8, wherein, The basis weight of the paper base layer is 45 g / m².

10. A spout pouch according to claim 8, wherein The suction nozzle is made of PE material.

Citation Information

Patent Citations

  • spout pouch (5)

    CN305686178S

  • spout pouch

    CN307040621S