High-barrier one-way ventilation valve bag
By setting up a composite of alumina PET layer, nylon layer A and nylon layer B in the food packaging bag, and the online corona composite connection between nylon layer B and PE layer, a high-barrier one-way breathable valve bag is designed, which solves the problem of bag expansion and rupture during food fermentation and storage, and achieves the effects of high-barrier, unidirectional breathable and impact resistance.
Patent Information
- Application Number
- CN202421670903.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-15
- Publication Date
- 2025-06-06
- Estimated Expiration
- 2034-07-15
AI Technical Summary
During the fermentation and storage of food, the bag is prone to expand due to gas volatilization, resulting in the risk of bursting, and is prone to rupture during handling, resulting in the leakage of contents.
A high-barrier one-way breathable valve bag is designed. By providing a composite of alumina PET layer, a nylon layer A and a nylon layer B in the bag, and an online corona composite connection between the nylon layer B and the PE layer, the effects of high-barrier, one-way breathable and impact resistance are achieved.
The design effectively blocks external air and moisture, ensures one-way exhaust of food, enhances the bag's impact resistance and overall strength, and provides good heat sealing performance, reducing the risk of bursting and leakage.
Smart Images
Figure CN222947297U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of packaging bags, in particular to a high-barrier one-way air-permeable valve bag. Background Art
[0002] During the fermentation and preservation of some foods, gases will continue to evaporate while being isolated from the air. After bagging, the bags will continue to expand, which not only poses a risk of bursting but is also detrimental to the stability of the transportation process. Therefore, it is necessary to install a one-way valve in the bag to allow the gas generated by the contents to be discharged while air and moisture are blocked out to ensure the fermentation and preservation of the food. In addition, since these bags contain a lot of contents, they are prone to collision or falling during transportation, which can easily lead to bag breakage and leakage of the contents. Therefore, there is an urgent need for a packaging bag with high barrier, one-way breathability, and impact resistance.
[0003] Based on the above situation, the utility model proposes a high-barrier one-way breathable valve bag, which can effectively solve the above problems. Utility Model Content
[0004] The purpose of the utility model is to provide a high-barrier one-way breathable valve bag. The utility model provides a high-barrier one-way breathable valve bag that blocks external air and moisture while ensuring one-way exhaust of the product, providing a suitable environment for food fermentation and preservation; by setting an alumina PET layer, the high barrier property of the breathable valve bag is ensured; at the same time, by compounding the nylon layer A and the nylon layer B, the impact resistance and overall strength of the breathable valve bag are enhanced; at the same time, the nylon layer B is compounded and connected with the PE layer through online corona treatment, providing good heat sealing performance.
[0005] The utility model is realized by the following technical solutions:
[0006] A high-barrier one-way breathable valve bag comprises an aluminum oxide PET layer, a nylon layer A, a nylon layer B and a PE layer which are compositely connected in sequence from outside to inside; the aluminum oxide PET layer is compositely connected to the nylon layer A through composite glue A, a printing layer is provided on the side of the nylon layer A away from the aluminum oxide PET layer, the printing layer is compositely connected to the nylon layer B through composite glue B, and the side of the nylon layer B away from the printing layer is compositely connected to the PE layer through online corona treatment.
[0007] According to the above technical solution, as a further preferred technical solution of the above technical solution, the thickness of the aluminum oxide PET layer is 10 to 30 um, and the composite surface of the aluminum oxide PET layer is corona treated, and the corona value is 38 to 42 dynes.
[0008] According to the above technical solution, as a further preferred technical solution of the above technical solution, the thickness of the nylon layer A and the nylon layer B are both 10-40 um, and both sides of the nylon layer A and the nylon layer B are corona treated, and the corona value is 38-52 dynes.
[0009] According to the above technical solution, as a further preferred technical solution of the above technical solution, the thickness of the PE layer is 60 to 120 um; and the composite surface of the PE layer is corona treated, and the corona value is 38 to 42 dynes.
[0010] According to the above technical solution, as a further preferred technical solution of the above technical solution, the composite glue A and the composite glue B are both solvent-based glues.
[0011] According to the above technical solution, as a further preferred technical solution of the above technical solution, the glue amount of the composite glue A and the composite glue B is 8-12 g / m 2 , the drying temperature is 60-80℃.
[0012] Compared with the prior art, the utility model has the following advantages and beneficial effects:
[0013] The utility model provides a high-barrier one-way breathable valve bag, which blocks external air and moisture while ensuring one-way exhaust of products, thereby providing a suitable environment for food fermentation and preservation; the high barrier property of the breathable valve bag is ensured by arranging an aluminum oxide PET layer; at the same time, the impact resistance and overall strength of the breathable valve bag are enhanced by compounding the nylon layer A and the nylon layer B; at the same time, the nylon layer B is compounded and connected with the PE layer through online corona treatment, thereby providing good heat sealing performance. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model. DETAILED DESCRIPTION
[0015] In order to enable those skilled in the art to better understand the technical solution of the utility model, the preferred implementation scheme of the utility model is described below in conjunction with specific embodiments. However, it should be understood that the drawings are only used for illustrative purposes and cannot be understood as a limitation on this patent. In order to better illustrate this embodiment, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of the actual product. For those skilled in the art, it is understandable that some well-known structures and their descriptions in the drawings may be omitted. The positional relationship described in the drawings is only used for illustrative purposes and cannot be understood as a limitation on this patent.
[0016] A high-barrier one-way breathable valve bag comprises an aluminum oxide PET layer 1, a nylon layer A2, a nylon layer B3 and a PE layer 4 which are compositely connected in sequence from outside to inside; the aluminum oxide PET layer 1 is compositely connected to the nylon layer A2 via composite glue A5, a printing layer 6 is provided on the side of the nylon layer A2 away from the aluminum oxide PET layer 1, the printing layer 6 is compositely connected to the nylon layer B3 via composite glue B7, and the side of the nylon layer B3 away from the printing layer 6 is compositely connected to the PE layer 4 via online corona treatment.
[0017] The utility model blocks external air and moisture while ensuring one-way exhaust of the product, thereby providing a suitable environment for food fermentation and preservation; the high barrier property of the breathable valve bag is ensured by arranging the aluminum oxide PET layer 1; at the same time, the impact resistance and the overall strength of the breathable valve bag are enhanced by compounding the nylon layer A2 and the nylon layer B3; at the same time, the nylon layer B3 is compound-connected with the PE layer 4 by online corona treatment, thereby providing good heat sealing performance.
[0018] Furthermore, in another embodiment, the thickness of the aluminum oxide PET layer 1 is 10 to 30 um, and the composite surface of the aluminum oxide PET layer 1 is corona treated, and the corona value is 38 to 42 dynes.
[0019] Furthermore, in another embodiment, the thickness of the nylon layer A2 and the nylon layer B3 are both 10-40 um, and both sides of the nylon layer A2 and the nylon layer B3 are corona treated, and the corona value is 38-52 dynes.
[0020] Furthermore, in another embodiment, the thickness of the PE layer 4 is 60-120 um; and the composite surface of the PE layer 4 is corona treated, and the corona value is 38-42 dynes.
[0021] Furthermore, in another embodiment, the composite glue A5 and the composite glue B7 are both solvent-based glues.
[0022] Furthermore, in another embodiment, the glue amount of the composite glue A5 and the composite glue B7 are both 8-12 g / m 2 , the drying temperature is 60-80℃.
[0023] According to the description and drawings of the utility model, those skilled in the art can easily manufacture or use the high-barrier one-way breathable valve bag of the utility model, and can produce the positive effects recorded in the utility model.
[0024] Unless otherwise specified, in the present invention, the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicating orientation or positional relationships are based on the orientation or positional relationships shown in the drawings, which are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation. Therefore, the terms describing the orientation or positional relationship in the present invention are only used for illustrative purposes and cannot be understood as limitations on this patent. For ordinary technicians in this field, the specific meanings of the above terms can be understood in conjunction with the drawings and according to specific circumstances.
[0025] Unless otherwise specified and limited, in the present invention, the terms "disposed", "connected" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected, or indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0026] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Any simple modification or equivalent changes made to the above embodiments based on the technical essence of the present invention shall fall within the protection scope of the present invention.
Claims
1. A high barrier one-way breathable valve bag, characterized in that: The invention comprises an aluminum oxide PET layer (1), a nylon layer A (2), a nylon layer B (3) and a PE layer (4) which are connected in sequence from the outside to the inside by composite connection; the aluminum oxide PET layer (1) is composite connected to the nylon layer A (2) by composite glue A (5); a printing layer (6) is provided on the side of the nylon layer A (2) away from the aluminum oxide PET layer (1); the printing layer (6) is composite connected to the nylon layer B (3) by composite glue B (7); and the side of the nylon layer B (3) away from the printing layer (6) is composite connected to the PE layer (4) by online corona discharge.
2. A high barrier one-way breathable valve bag according to claim 1, characterized in that: The thickness of the aluminum oxide PET layer (1) is 10 to 40 μm, and the composite surface of the aluminum oxide PET layer (1) is corona treated, with a corona value of 38 to 42 dynes.
3. The high barrier one-way breathable valve bag according to claim 1, characterized in that: The thickness of the nylon layer A (2) and the nylon layer B (3) are both 10 to 30 μm, and both sides of the nylon layer A (2) and the nylon layer B (3) are corona treated, with a corona value of 38 to 52 dynes.
4. The high barrier one-way breathable valve bag according to claim 1, characterized in that: The thickness of the PE layer (4) is 60 to 120 μm; and the composite surface of the PE layer (4) is subjected to corona treatment, with a corona value of 38 to 42 dynes.
5. The high barrier one-way breathable valve bag according to claim 1, characterized in that: The composite glue A (5) and the composite glue B (7) are both solvent-based glues.
6. The high barrier one-way breathable valve bag according to claim 1, characterized in that: The glue amount of the composite glue A (5) and the composite glue B (7) is 8-12 g / m 2 , the drying temperature is 60-80℃.