Built-in suction nozzle bag
The built-in spout pouch design solves the problems of increased cost and poor sealing associated with external spouts, achieving convenient use, good barrier properties and sealing, and is suitable for high-temperature sterilization, thus improving the practicality and hygiene of healthy beverage packaging.
Patent Information
- Application Number
- CN202423219383.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-26
- Publication Date
- 2025-11-14
- Estimated Expiration
- 2034-12-26
AI Technical Summary
The external spout on existing health drink packaging increases costs and has weak material barrier properties, posing a risk of poor sealing, affecting product taste and shelf life, and is also unhygienic.
Design a built-in spout bag. The spout consists of a welding section, a suction section, and a sealing section, with a break groove and an easy-tear line. The bag body is made of a multi-layer composite film material, including a printing layer, a barrier layer, a toughening layer, and a heat-sealing layer, which are connected by hot-press welding.
It achieves ease of use, good barrier properties and sealing, is suitable for high-temperature sterilization, reduces costs and improves hygiene.
Smart Images
Figure CN223546776U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of packaging bag technology, and more specifically, to a bag with a built-in spout. Background Technology
[0002] With social development and improved living standards, people are pursuing healthy lifestyles and diets, giving rise to a wide variety of health foods. Among them, health drinks such as goji berry juice and prune juice have also experienced rapid growth due to their convenience. In the past, most health drinks were packaged in traditional glass bottles, which was not only costly but also fragile and difficult to carry. Therefore, more and more products are now using flexible composite film bags as a new packaging form.
[0003] This type of composite flexible packaging has good sealing, light-blocking and barrier properties, and can meet the requirements of high-temperature sterilization. However, we have found that the market has raised more demands for packaging. For example, healthy drinks that use flexible packaging bags can be consumed directly after opening the bag. However, since consumers need to suck directly into the mouth of the film bag, they are worried about the surface of the bag being contaminated and causing unhygienic conditions. Usually, we can consider adding an external spout to the bag in this case, but this will significantly increase the cost. In addition, the exposed spout has weak barrier properties and is at risk of poor sealing, which may affect the taste and shelf life of the product. Utility Model Content
[0004] To address the aforementioned issues, this application provides a built-in spout pouch.
[0005] The technical solution for a built-in spout bag provided in this application is as follows:
[0006] A built-in spout bag includes a bag body with a bag opening and a filling and sealing section. A spout is heat-pressed and welded to the bottom inner side of the bag opening. The spout includes a welding section, a suction section, and a sealing section from bottom to top. A suction channel communicating with the inside of the bag body is provided at the center of the welding section and the suction section. A break groove is provided between the suction section and the sealing section. At least two easy-tear lines are provided laterally above the welding section at the bag opening.
[0007] Furthermore, the thickness of the welded section is 5-6 mm.
[0008] Furthermore, the suction channel is a circle or ellipse with an inner diameter of 2-3 mm.
[0009] Furthermore, the depth of the fracture groove is 0.1-0.4 mm.
[0010] The above technical solution ensures a certain connection strength while making it easy for users to break off the sealing section along the groove at the break.
[0011] Furthermore, the two ends of the easy-tear line are provided with tear openings.
[0012] The above technical solution makes it easy for users to tear open the bag.
[0013] Furthermore, the bag body comprises, from the outside to the inside, a printing layer, a barrier layer, a toughening layer, and a heat-sealing layer, with each layer being bonded together by an adhesive layer.
[0014] Furthermore, the printed layer is a biaxially oriented polyester film with a thickness of 10-12 μm, the barrier layer is an aluminum foil film with a thickness of 5-7 μm, the toughening layer is a biaxially oriented polyamide film with a thickness of 13-15 μm, the heat-sealing layer is a high-temperature resistant polyethylene film with a thickness of 60-70 μm, and the adhesive layer is a high-temperature resistant two-component polyurethane adhesive with a thickness of 3-4 μm.
[0015] The above technical solutions enable the bag to have good barrier properties, sealing properties and mechanical properties, and it can be used for sterilization at high temperatures of 90-121℃.
[0016] In summary, this application includes at least one of the following beneficial technical effects:
[0017] (1) This application adopts a customized suction nozzle with optimized design, which reduces the space occupation while ensuring sufficient channel flow and facilitates the welding of various components. The integrated suction nozzle design does not require a screw cap, further improving the ease of use.
[0018] (2) This application adopts a multi-layer composite film bag with an aluminum-plastic structure, which has good barrier properties, sealing properties and mechanical properties, and is suitable for high-temperature sterilization requirements of 90-121℃;
[0019] (3) This application takes into account practicality, convenience, hygiene and aesthetics, and is applicable to various liquid beverage packaging, and has good market application prospects. Attached Figure Description
[0020] Figure 1 This is a schematic diagram of the structure of Embodiment 1 of this application;
[0021] Figure 2 This is a schematic diagram illustrating the use of Embodiment 1 of this application;
[0022] Figure 3 This is a schematic diagram of the layered structure of the bag body in Embodiment 1 of this application;
[0023] Figure 4 This is a schematic diagram of the structure of Embodiment 2 of this application;
[0024] Figure 5 This is a schematic diagram illustrating the use of Embodiment 2 of this application.
[0025] Explanation of the labels in the diagram:
[0026] 1. Bag body; 11. Printed layer; 12. Barrier layer; 13. Toughening layer; 14. Heat-sealing layer; 15. Adhesive layer; 2. Bag opening; 3. Filling and sealing section; 4. Suction nozzle; 41. Welding section; 42. Suction section; 43. Sealing section; 44. Tear groove; 5. Easy-tear line; 6. Tear opening. Detailed Implementation
[0027] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.
[0028] In the description of this application, it should be noted that the terms "upper," "lower," "inner," "outer," "top / bottom," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0029] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.
[0030] The present application will be further described in detail below with reference to the accompanying drawings.
[0031] Example 1:
[0032] This application discloses a bag with a built-in suction nozzle, including a bag body 1. The bag body 1 has a bag opening 2 and a filling and sealing part 3. The bag opening 2 is located at the top of the bag body 1, and the filling and sealing part 3 is located at the bottom of the bag body 1. A suction nozzle 4 is hot-pressed and welded to the bottom inner side of the bag opening 2. The suction nozzle 4 includes a welding section 41, a suction section 42 and a sealing section 43 from bottom to top. The center of the welding section 41 and the suction section 42 is provided with a suction channel communicating with the inside of the bag body 1. A break groove 44 is provided between the suction section 42 and the sealing section 43. At least two easy-tear lines 5 are provided horizontally above the welding section 41 of the bag opening 2.
[0033] Please see Figure 1-2 The built-in suction nozzle 4 is made of polyethylene or polypropylene. The welded section 41 is used for welding to the composite film bag body 1. The sealing section 43 blocks the connection between the nozzle and the outside. The connection between the sealing section 43 and the suction section 42 is a break groove 44 with a depth of 0.1-0.4mm. This ensures a certain connection strength while allowing the user to easily pry off the sealing section 43 along the break groove 44. The inner diameter of the suction section 42 nozzle is set to a circle or ellipse of 2-3mm, and the thickness of the welded section 41 is controlled at 5-6mm.
[0034] Please see Figure 1-2 The composite film bag and the built-in suction nozzle 4 are connected to the composite film bag in a fixed position by thermoforming. To facilitate tearing open the packaging to expose the suction nozzle 4, the composite film bag is provided with tear-out openings 6 and laser-cut easy-tear lines 5. The tear-out openings 6 are formed by die-cutting and are located on the left and right sides of the bag opening for easy opening by consumers. The laser-cut easy-tear lines 5 are located between the tear-out openings 6 on both sides. The composite film bag has laser-cut easy-tear lines 5 on both the front and back sides. Each side of the laser-cut easy-tear line 5 consists of two or more straight lines spaced 1mm apart.
[0035] Please see Figure 3 The bag body 1 comprises, from the outside to the inside, a printing layer 11, a barrier layer 12, a toughening layer 13, and a heat-sealing layer 14, with each layer bonded together by an adhesive layer 15. Preferably, the printing layer 11 is a biaxially oriented polyester film with a thickness of 10-12 μm, the barrier layer 12 is an aluminum foil film with a thickness of 5-7 μm, the toughening layer 13 is a biaxially oriented polyamide film with a thickness of 13-15 μm, the heat-sealing layer 14 is a high-temperature resistant polyethylene film with a thickness of 60-70 μm, and the adhesive layer 15 is a high-temperature resistant two-component polyurethane adhesive with a thickness of 3-4 μm. This gives the bag body 1 good barrier properties, sealing properties, and mechanical properties, and makes it suitable for sterilization at temperatures of 90-121°C.
[0036] Example 2:
[0037] This application discloses a four-bag with a built-in suction nozzle, comprising a bag body 1. The bag body 1 has a bag opening 2 and a filling and sealing part 3. Unlike embodiment 1, the bag opening 2 and the filling and sealing part 3 are arranged side by side at the top of the bag body 1, and the bag opening 2 is tilted to one side. This can improve the utilization rate of the contents of the bag body 1.
[0038] The implementation principle of Embodiment 1 and Real-time Embodiment 2 of this application is as follows: This application provides an internal suction nozzle 4 that connects to the inside of the bag body 1 by setting an internal suction nozzle 4 at the bottom of the inner side of the bag opening 2. The filling and sealing part 3 is used for heat sealing after product filling. When consumers use it, they first tear the bag opening along the laser easy-tear line 5 through the tear 6 to expose the internal suction nozzle 4. Then, they bend the sealing section 43 by hand. Under the action of the break groove 44, the sealing section 43 easily falls off, and then they can suck through the suction section 42. Similarly, they can first break the sealing section 43 along the break groove 44, and then tear the bag opening along the easy-tear line 5 to expose the suction nozzle 4.
[0039] By employing a customized, optimized nozzle 4, sufficient flow rate is ensured while reducing space occupation. This also facilitates the welding of various components. The integrated nozzle 4 design eliminates the need for a screw cap, further enhancing ease of use. The multi-layered composite film bag 1, with its aluminum-plastic structure, provides excellent barrier properties, sealing performance, and mechanical properties, and is suitable for high-temperature sterilization requirements of 90-121℃.
[0040] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.
Claims
1. A built-in spout bag, comprising a bag body (1), the bag body (1) having a bag opening (2) and a filling and sealing portion (3), characterized in that: A suction nozzle (4) is hot-pressed welded to the bottom inner side of the bag opening (2). The suction nozzle (4) includes a welding section (41), a suction section (42) and a sealing section (43) from bottom to top. The center of the welding section (41) and the suction section (42) is provided with a suction channel that connects to the inside of the bag body (1). A break groove (44) is provided between the suction section (42) and the sealing section (43). At least two easy-tear lines (5) are provided horizontally above the welding section (41) of the bag opening (2).
2. The built-in spout pouch according to claim 1, characterized in that: The thickness of the welded section (41) is 5-6 mm.
3. The built-in spout pouch according to claim 2, characterized in that: The suction channel is a circle or ellipse with an inner diameter of 2-3 mm.
4. The built-in spout pouch according to claim 3, characterized in that: The depth of the fracture groove (44) is 0.1-0.4 mm.
5. A built-in spout pouch according to claim 1, characterized in that: The easy-tear line (5) has tear openings (6) at both ends.
6. The built-in spout pouch according to claim 1, characterized in that: The bag body (1) consists of a printing layer (11), a barrier layer (12), a toughening layer (13) and a heat-sealing layer (14) from the outside to the inside, and the layers are connected by an adhesive layer (15).
7. A built-in spout pouch according to claim 6, characterized in that: The printed layer (11) is a biaxially oriented polyester film with a thickness of 10-12 μm, the barrier layer (12) is an aluminum foil film with a thickness of 5-7 μm, the toughening layer (13) is a biaxially oriented polyamide film with a thickness of 13-15 μm, the heat-sealing layer (14) is a high-temperature resistant polyethylene film with a thickness of 60-70 μm, and the adhesive layer (15) is a high-temperature resistant two-component polyurethane adhesive with a thickness of 3-4 μm.