High-barrier and high-falling-resistance aluminum foil bag capable of being used for automatically packaging one body

Abstract

The invention discloses a high-barrier and high-break-resistance aluminum foil bag capable of being used for automatically packaging one body, which adopts a side-sealed organ aluminum foil woven bag structure and comprises a bag body, a plurality of layers of dry composite structures and a plurality of layers of sealing strips, the bottom seal is fixedly connected to the bottom of the bag body; the bag opening is formed in the top of the bag body; the multi-pleated organ structure is fixedly connected to the two sides of the bag body; the inclined sealing edges are arranged at the joints of the multi-pleated organ structures on the two sides and the bottom seal; the side seal is arranged in the fold line direction of the multi-pleated organ structure on one side; the side seal inner side layer is arranged in the side seal; the packaging bag has the advantages of being convenient to recycle, convenient to manufacture and process, low in cost, high in product quality and the like, and solves the problems that heavy packaging bags on the market at present cannot be recycled, the product quality is affected due to substandard waterproof and moistureproof technologies, and the production cost is high.

Description

Technical Field

[0001] The present invention relates to the technical field of packaging bags, and particularly to a high-barrier and strong anti-drop aluminum foil bag for automatic packaging integrated heavy packaging that can be used. Background Art

[0002] In the field of heavy packaging in the flexible packaging industry, the heavy packaging bags used in the prior art are generally paper-plastic composite bags, and such paper-plastic composite bags have various problems:

[0003] 1. Paper-plastic composite bags cannot be recycled, causing environmental pollution; 2. For high-end products such as nylon-modified plastics, paper-plastic composite bags do not meet the requirements for waterproofing and moisture-proofing. The traditional method in the industry is only to add an aluminum foil bag as an inner bag, making it a double-layer bag for manual bagging and then sealing, increasing the labor cost;

[0004] 3. With the demand for engineering plastics, the requirements for bag integration, automation level, reduction of labor cost, and increase in efficiency are getting higher and higher, and the existing paper-plastic composite bags cannot meet the above requirements;

[0005] 4. The existing paper-plastic composite bags have poor anti-drop ability;

[0006] 5. The existing paper-plastic composite bags do not have the function of monitoring temperature and humidity.

[0007] Therefore, there is an urgent need for a high-barrier and strong anti-drop aluminum foil bag for automatic packaging integrated heavy packaging that can solve the above problems. Summary of the Invention

[0008] The purpose of the present invention is to provide a high-barrier and strong anti-drop aluminum foil bag for automatic packaging integrated heavy packaging, which has the advantages of being convenient for recycling and utilization, easy to manufacture and process, cost reduction, and high product quality, and solves the problems that the heavy packaging bags on the market cannot be recycled, the waterproofing and moisture-proofing technology does not meet the standard, affecting product quality, and high production cost.

[0009] To achieve the above purpose, the present invention provides the following solution:

[0010] The present invention provides a high-barrier and strong anti-drop aluminum foil bag for automatic packaging integrated heavy packaging, adopting a side-sealed accordion aluminum foil woven bag structure, including:

[0011] A bag body, the bag body adopting a multi-layer dry compound structure;

[0012] A bottom seal, the bottom seal fixedly connected to the bottom of the bag body;

[0013] A bag mouth, the bag mouth being opened at the top of the bag body;

[0014] A multi-pleat accordion structure, the multi-pleat accordion structure fixedly connected to both sides of the bag body;

[0015] Oblique sealing edge, which is arranged at the connection of the multi-pleated bellows structures on both sides and the bottom seal;

[0016] Side seal, which is arranged in the folding line direction of the multi-pleated bellows structure on one side;

[0017] Inner layer of side seal, which is arranged inside the side seal.

[0018] Preferably, the multi-layer dry lamination structure includes a polyester layer, an aluminum layer, a nano-barrier layer, a polyethylene woven cloth layer, a nylon layer, a graphene reinforced layer, and a polyethylene layer, which are laminated in sequence from outside to inside.

[0019] Preferably, the polyester layer is made of polyethylene terephthalate.

[0020] Preferably, the outer side of the polyester layer is coated with anti-slip oil.

[0021] Preferably, the polyethylene layer is made of bio-based polyethylene.

[0022] Preferably, the bag body is provided with nano-scale breathable holes.

[0023] Preferably, an elastic support strip is laminated inside the multi-pleated bellows structure.

[0024] Preferably, the oblique sealing edge is heat-sealed by a K-type die heat-sealing knife.

[0025] Preferably, the bottom seal and the inner layer of the side seal are both provided with honeycomb buffer structures.

[0026] Preferably, a flexible temperature and humidity sensor is provided inside the bag body, and the flexible temperature and humidity sensor is wirelessly transmitted through an NFC tag.

[0027] The present invention has achieved the following beneficial technical effects compared with the prior art:

[0028] 1. The present invention has ultra-high barrier properties and mechanical properties. By introducing a nano-barrier layer, the oxygen and water vapor transmission rates are reduced by more than 60%, significantly improving the moisture-proof and anti-oxidation protection of the contents; at the same time, the graphene reinforced layer is embedded in the nylon layer, endowing the bag body with excellent puncture resistance and antistatic properties, and is suitable for the dust-proof packaging of electronic components and precision instruments.

[0029] 2. The present invention has the effect of breaking through the environmental protection performance. By using bio-based polyethylene, the biodegradation rate can reach 85%, reducing white pollution and conforming to the global trend of plastic reduction; the combination of modular design and degradable materials makes the bag body easy to classify and recycle after disassembly, realizing circular economy.

[0030] 3. The present invention has the effects of dynamic capacity expansion and anti-drop reinforcement. The multi-pleated accordion structure is internally compounded with elastic support strips, enabling the bag body to automatically recover after being compressed, increasing the capacity by 25%, and at the same time avoiding damage caused by deformation during transportation; the honeycomb buffer structure is integrated into the inner layers of the bottom seal and side seal, absorbing impact energy through bionic mechanics design, and the anti-drop strength is increased by more than 50%, which is suitable for the transportation of fragile items.

[0031] 4. The present invention has an intelligent logistics monitoring function. The flexible temperature and humidity sensor is embedded in the inner layer of the bag body to monitor the state of the contents in real time. The data is wirelessly transmitted to the terminal through the NFC tag, improving the transparency and security of the supply chain; the nano-scale breathable holes replace the traditional one-way valve, increasing the exhaust efficiency by 3 times, and automatically closing after heat sealing to ensure the sealing performance.

[0032] 5. The present invention has the characteristics of process and cost optimization. The inclined seal edge formed by the K-type die heat-sealing knife has uniform heat-sealing strength, and the production efficiency is increased by 20%; the outer side of the polyester layer is coated with anti-slip oil, increasing the friction force by 30% during palletizing, reducing the risk of slipping, and reducing warehousing losses. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required in the embodiments. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0034] Figure 1 It is a schematic structural diagram of the high-barrier and anti-drop strong aluminum foil bag for automatic packaging and unitized packaging of the present invention.

[0035] Figure 2 It is a schematic diagram of the multi-layer dry compound structure of the high-barrier and anti-drop strong aluminum foil bag for automatic packaging and unitized packaging of the present invention.

[0036] In the figure: 1. Bag body; 2. Bottom seal; 3. Bag mouth; 4. Multi-pleated accordion structure; 5. Inclined seal edge; 6. Side seal; 7. Inner layer of side seal; 8. Flexible temperature and humidity sensor; 11. Polyester layer; 12. Pure aluminum layer; 13. Nano-barrier layer; 14. Polyethylene woven cloth layer; 15. Nylon layer; 16. Graphene reinforcement layer; 17. Polyethylene layer. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0037] The following will describe in detail the embodiments of the present invention. The examples of the embodiments are shown in the drawings, where the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions from beginning to end. The embodiments described below by referring to the drawings are exemplary and are only used to explain the present invention and should not be construed as a limitation to the present invention.

[0038] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by terms such as "length", "width", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the present invention.

[0039] In the description of the present invention, it should be noted that unless otherwise clearly specified and defined, the terms "installed", "connected", "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, and can be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0040] The purpose of the present invention is to provide a high-barrier and strong anti-drop aluminum foil bag for automatic packaging integrated weighing packaging, so as to solve the problems existing in the prior art.

[0041] In order to make the above objects, features, and advantages of the present invention more obvious and understandable, the present invention will be further described in detail below with reference to the drawings and specific embodiments.

[0042] Embodiment 1:

[0043] This embodiment provides a high-barrier and strong anti-drop aluminum foil bag for automatic packaging integrated weighing packaging, adopting a side-sealed bellows aluminum foil woven bag structure, as Figure 1 shown, including:

[0044] A bag body 1, and the bag body 1 adopts a multi-layer dry compound structure;

[0045] A bottom seal 2, and the bottom seal 2 is fixedly connected to the bottom of the bag body 1;

[0046] A bag mouth 3, and the bag mouth 3 is opened at the top of the bag body 1;

[0047] A multi-pleated bellows structure 4, and the multi-pleated bellows structure 4 is fixedly connected to both sides of the bag body 1;

[0048] An inclined seal edge 5, and the inclined seal edge 5 is arranged at the connection of the multi-pleated bellows structure 4 on both sides and the bottom seal 2;

[0049] A side seal 6, and the side seal 6 is arranged in the folding line direction of the multi-pleated bellows structure 4 on one side;

[0050] A side seal inner layer 7, and the side seal inner layer 7 is arranged inside the side seal 6.

[0051] As an implementation method, as Figure 2As shown in the figure, the multi-layer dry composite structure includes a polyester layer 11, a pure aluminum layer 12, a nano-barrier layer 13, a polyethylene woven cloth layer 14, a nylon layer 15, a graphene reinforcement layer 16, and a polyethylene layer 17 that are sequentially compounded from the outside to the inside.

[0052] Among them, the polyester layer 11 is made of polyethylene terephthalate with a thickness of 12 μm, and the outer side is coated with anti-slip oil;

[0053] The pure aluminum layer 12 has a thickness of 9 μm and forms a continuous barrier film through a vacuum aluminizing process;

[0054] The nano-barrier layer 13 is made of nano-silica dispersed in a polyvinyl alcohol matrix, and the coating thickness is 5 μm;

[0055] The polyethylene woven cloth layer 14 is made of high-density polyethylene woven cloth with a grammage of 80 g / m 2 ;

[0056] The nylon layer 15 is made of PA6 material with a thickness of 15 μm, and 1% graphene powder is premixed to enhance wear resistance;

[0057] The graphene reinforcement layer 16 is made of a graphene-modified polyethylene film with a thickness of 10 μm;

[0058] The polyethylene layer 17 is made of bio-based LDPE with a thickness of 20 μm, and the raw material comes from sugarcane ethanol;

[0059] The above layer structure is laminated layer by layer using a dry laminator, controlling the temperature at 120°C to 150°C and the pressure at 0.4 MPa.

[0060] As an implementation method, the bag body 1 is provided with nano-scale breathable holes. Using an ultraviolet laser with a wavelength of 355 nm, a microporous array with a pore diameter of 50 - 100 nm is processed on the surface of the bag body 1, and the density is 200 holes / cm 2 .

[0061] As an implementation method, an elastic support strip is compounded inside the multi-pleated accordion structure 4. Three parallel pleats are pre-pressed on both sides of the bag body 1 with a depth of 2 cm. A TPU elastic support strip with a diameter of 2 mm is embedded in the pleats and fixed by a hot pressing process.

[0062] As an implementation method, the beveled edge 5 is heat-sealed using a K-type die heat-sealing knife. The heat-sealing temperature is 200°C, the pressure is 0.6 MPa, and the sealing time is 3 s, forming a serrated sealing line with a tensile strength ≥ 30 N / 15 mm.

[0063] As an implementation method, both the bottom seal 2 and the inner layer 7 of the side seal are provided with honeycomb buffer structures. Using a molded hexagonal honeycomb groove with a side length of 3 mm, filled with foamed EVA material with a density of 0.1 g / cm 3 , and fixed by hot pressing.

[0064] As an implementation manner, a flexible temperature and humidity sensor 8 is provided inside the bag body 1. The flexible temperature and humidity sensor 8 is wirelessly transmitted through an NFC tag. A polyimide substrate thin film sensor is selected and embedded in the inner layer of the bag body 1, close to the polyethylene layer 17, and is connected to the NFC chip through conductive silver paste.

[0065] The present invention has ultra-high barrier properties and mechanical properties. By introducing a nano-barrier layer, the oxygen and water vapor transmission rates are reduced by more than 60%, significantly enhancing the moisture-proof and antioxidant protection of the contents. At the same time, the graphene reinforcement layer is embedded in the nylon layer, endowing the bag body with excellent puncture resistance and antistatic properties, and is suitable for the dust-proof packaging of electronic components and precision instruments.

[0066] The present invention has the effect of breaking through the environmental protection performance. By using bio-based polyethylene, the biodegradation rate can reach 85%, reducing white pollution and conforming to the global plastic reduction trend. The combination of modular design and degradable materials makes the bag body easy to classify and recycle after disassembly, realizing circular economy.

[0067] The present invention has the effects of dynamic expansion and anti-drop strengthening. An elastic support strip is compounded inside the multi-pleated accordion structure, enabling the bag body to automatically recover after being compressed, increasing the capacity by 25%, and at the same time avoiding damage caused by deformation during transportation. The honeycomb buffer structure is integrated into the inner layers of the bottom seal and side seal, absorbing impact energy through bionic mechanics design, and the anti-drop strength is increased by more than 50%, suitable for the transportation of fragile items.

[0068] The present invention has an intelligent logistics monitoring function. The flexible temperature and humidity sensor is embedded in the inner layer of the bag body, real-time monitoring the state of the contents, and the data is wirelessly transmitted to the terminal through the NFC tag, improving the transparency and security of the supply chain. The nano-scale breathable holes replace the traditional one-way valve, increasing the exhaust efficiency by 3 times, and automatically closing after heat sealing to ensure the sealing performance.

[0069] The present invention has the characteristics of process and cost optimization. The inclined seal edge formed by the K-type die heat-sealing knife has uniform heat-sealing strength, and the production efficiency is increased by 20%. The outer side of the polyester layer is coated with anti-slip oil, increasing the friction force by 30% during stacking, reducing the risk of slipping, and reducing storage losses.

[0070] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device.

[0071] Although embodiments of the present invention have been shown and described, those of ordinary skill in the art will appreciate that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the invention. The scope of the invention is defined by the appended claims and their equivalents.

[0072] The above describes the present invention and its embodiments. Such description is not restrictive. What is shown in the drawings is only one of the embodiments of the present invention, and the actual structure is not limited thereto. Generally speaking, if those of ordinary skill in the art are inspired by it and, without departing from the gist of the present invention, design similar structural modes and embodiments to this technical solution without creative efforts, they shall fall within the protection scope of the present invention.

[0073] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above-described exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be embraced within the present invention. Any reference signs in the claims should not be construed as limiting the claims involved.

[0074] In addition, it should be understood that although this specification is described according to embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A high barrier and drop-resistant aluminum foil bag that can be used for automatic packaging of a single-weight package, using a side-sealed accordion aluminum foil woven bag structure, characterized by: include: A bag body (1), wherein the bag body (1) adopts a multi-layer dry composite structure; A bottom seal (2), the bottom seal (2) being fixedly connected to the bottom of the bag body (1); A bag opening (3), wherein the bag opening (3) is opened at the top of the bag body (1); A multi-pleated accordion structure (4), wherein the multi-pleated accordion structure (4) is fixedly connected to two sides of the bag body (1); An oblique edge seal (5), the oblique edge seal (5) being arranged at the connection between the multi-pleated accordion structure (4) and the bottom seal (2) on both sides; A side seal (6), the side seal (6) being arranged in the fold line direction of the multi-pleated accordion structure (4) on one side; A side seal inner layer (7), wherein the side seal inner layer (7) is arranged inside the side seal (6).

2. The high barrier and drop-resistant aluminum foil bag for automatic packaging of one-weight packaging according to claim 1 is characterized by: The multi-layer dry composite structure comprises a polyester layer (11), a pure aluminum layer (12), a nano barrier layer (13), a polyethylene woven fabric layer (14), a nylon layer (15), a graphene reinforcement layer (16), and a polyethylene layer (17) which are composited in sequence from the outside to the inside.

3. The high barrier and drop-resistant aluminum foil bag for automatic packaging of one-weight packaging according to claim 2 is characterized by: The polyester layer (11) is made of polyethylene terephthalate.

4. The high barrier and drop-resistant aluminum foil bag for automatic packaging of one-weight packaging according to claim 2 is characterized by: The outer side of the polyester layer (11) is coated with anti-slip oil.

5. The high barrier and drop-resistant aluminum foil bag for automatic packaging of one-weight packaging according to claim 2 is characterized by: The polyethylene layer (17) is made of bio-based polyethylene.

6. The high barrier and drop-resistant aluminum foil bag for automatic packaging of one-weight packaging according to claim 2 is characterized by: The bag body (1) is provided with nano-scale air permeable holes.

7. The high barrier and drop-resistant aluminum foil bag for automatic packaging of one-weight packaging according to claim 1 is characterized by: The multi-pleated accordion structure (4) is compounded with elastic support strips.

8. The high barrier and drop-resistant aluminum foil bag for automatic packaging of one-weight packaging according to claim 1 is characterized by: The oblique edge sealing (5) is formed by heat sealing with a K-type mold heat sealing knife.

9. The high barrier and drop-resistant aluminum foil bag for automatic packaging of one-weight packaging according to claim 1 is characterized by: The bottom seal (2) and the inner layer (7) of the side seal are both provided with a honeycomb buffer structure.

10. The high barrier and drop-resistant aluminum foil bag for automatic packaging of one-weight packaging according to claim 1 is characterized by: A flexible temperature and humidity sensor (8) is arranged inside the bag body (1), and the flexible temperature and humidity sensor (8) transmits wirelessly via an NFC tag.

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