Degradable oil separation packaging bag

Abstract

The utility model relates to the technical field of packaging bag structures, and discloses a degradable oil separation packaging bag which comprises a packaging bag body and a sealing cover plate, the sealing cover plate is connected with the upper end of the packaging bag body, corresponding pull-up channels are arranged in the packaging bag body and the sealing cover plate, pull ropes are arranged in the pull-up channels, and a composite protection layer is arranged on the inner wall of the packaging bag body. One ends of the pull ropes are fixedly connected to the two sides of the lower end of the composite protection layer respectively, the other ends of the pull ropes penetrate out of the sealing cover plate, and the pull ropes are pulled out to lift the composite protection layer. Through the design of the pull-up channel and the pull rope, the composite protection layer can be lifted, contact between the packaging bag body and the composite protection layer is reduced, heat transfer is reduced, the overall oil separation performance of the packaging bag is improved, oil can be effectively isolated, and the situation that the oil in the packaging bag leaks or pollutes the outside is avoided; and the actual use effect of the packaging bag is enhanced.

Description

Technical Field

[0001] This utility model relates to the field of packaging bag structure technology, and in particular to a biodegradable oil-separating packaging bag. Background Technology

[0002] Oil leakage is a common and pressing problem in existing food packaging bag technology. Traditional food packaging bags are mostly made of plastic or composite materials. Although these materials have a certain degree of water resistance and sealing, their oil-blocking ability is often insufficient when dealing with oily foods, leading to oil leakage or external contamination.

[0003] Furthermore, traditional packaging materials have poor biodegradability, especially plastic-based bags, which remain in the environment long after use and are difficult to degrade, becoming a major source of plastic pollution. With increasing environmental awareness, consumers are demanding higher environmental standards for food packaging bags. However, most food packaging bags currently on the market still fail to meet good biodegradability requirements, limiting their application in environmental protection. Therefore, achieving biodegradability while maintaining excellent oil-repellent properties is a pressing technical challenge that needs to be addressed. Utility Model Content

[0004] This invention addresses the shortcomings of existing technologies by providing a biodegradable oil-separating packaging bag.

[0005] To solve the above-mentioned technical problems, the present invention provides the following technical solution.

[0006] A biodegradable oil-separating packaging bag includes a main body and a sealing plate. The sealing plate is connected to the upper end of the main body. The main body and the sealing plate are provided with corresponding lifting channels. A pull rope is provided in the lifting channel. The inner wall of the main body is provided with a composite protective layer. One end of the pull rope is fixedly connected to both sides of the lower end of the composite protective layer. The other end of the pull rope passes through the sealing plate. Pulling out the pull rope raises the composite protective layer.

[0007] Preferably, the main body of the packaging bag is provided with fixing posts on both sides for wrapping and fixing the pull rope.

[0008] Preferably, the cover plate includes a first cover plate and a second cover plate. The first cover plate has a fixing opening, and the second cover plate has a fixing protrusion. The fixing protrusion passes through the fixing opening to fix the first cover plate and the second cover plate to each other.

[0009] Preferably, the composite protective layer includes a waterproof and oil-separating layer, a biodegradable layer, and an oil-separating pleated layer, with the waterproof and oil-separating layer disposed at the lower end of the biodegradable layer and the oil-separating pleated layer disposed on the inner side of the biodegradable layer.

[0010] Preferably, the biodegradable layer is made of polylactic acid.

[0011] Preferably, the waterproof and oil-resistant layer and the oil-resistant pleated layer are made of seaweed-based materials.

[0012] Preferably, the main body of the packaging bag is made of starch-based composite material.

[0013] As a preferred option, a pull opening is provided at the lower inner side of the main body of the packaging bag, so that the composite protective layer can be separated from the bottom layer of the main body of the packaging bag when the drawstring is lifted.

[0014] This utility model, by adopting the above technical solutions, has significant technical effects: By setting up a lifting channel and a pull rope, the composite protective layer can be lifted, reducing the contact between the main body of the packaging bag and the composite protective layer, reducing heat transfer, and improving the overall oil-proof performance of the packaging bag. It can effectively isolate grease, prevent the grease in the packaging contents from leaking or polluting the outside world, and enhance the actual use effect of the packaging bag. Attached Figure Description

[0015] Figure 1 This is a cross-sectional structural diagram of a biodegradable oil-separating packaging bag according to the present invention;

[0016] Figure 2 This is a schematic diagram of the structure of a biodegradable oil-separating packaging bag of this utility model when the pull rope is tied to a fixed post;

[0017] Figure 3 This is a top view of the structure of a biodegradable oil-separating packaging bag according to this utility model;

[0018] Figure 4 This is a side view of the structure of a biodegradable oil-separating packaging bag according to the present invention;

[0019] Figure 5 yes Figure 1 Enlarged structural diagram at point A in the middle.

[0020] In the diagram: 1—Main body of packaging bag, 21—First sealing plate, 22—Second sealing plate, 23—Fixing opening, 24—Fixing protrusion, 3—Pull-up channel, 4—Pull rope, 51—Waterproof and oil-proof layer, 52—Degradable layer, 53—Oil-proof pleated layer, 6—Fixing column, 7—Pull-up opening. Detailed Implementation

[0021] The technical solutions of 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. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0022] like Figures 1 to 5As shown in the illustration, a biodegradable oil-separating packaging bag according to an embodiment of this application includes a packaging bag body 1 and a sealing plate. The sealing plate is connected to the upper end of the packaging bag body 1. Corresponding lifting channels 3 are provided inside the packaging bag body 1 and the sealing plate. Pull ropes 4 are provided within the lifting channels 3. A composite protective layer is provided on the inner wall of the packaging bag body 1. One end of the pull rope 4 is fixedly connected to both sides of the lower end of the composite protective layer, and the other end of the pull rope 4 extends through the sealing plate. Pulling out the pull rope 4 raises the composite protective layer. By designing the lifting channels 3 and pull ropes 4, the composite protective layer can be raised, reducing the contact between the packaging bag body 1 and the composite protective layer, reducing heat transfer, and improving the overall oil-separating performance of the packaging bag. This effectively isolates grease, prevents leakage of grease from the packaging contents or contamination of the outside environment, and enhances the actual use effect of the packaging bag.

[0023] The main body 1 of the packaging bag has fixing posts 6 on both sides for wrapping and fixing the pull rope 4. The fixing posts 6 on both sides of the main body 1 of the packaging bag can effectively wrap and fix the pull rope 4, preventing the pull rope 4 from loosening or being broken, thus improving the stability and durability of the packaging bag.

[0024] The sealing plate includes a first sealing plate 21 and a second sealing plate 22. The first sealing plate 21 has a fixing opening 23, and the second sealing plate 22 has a fixing protrusion 24. The fixing protrusion 24 passes through the fixing opening 23 to fix the first sealing plate 21 and the second sealing plate 22 to each other. This embodiment adopts a double sealing plate configuration, and the first sealing plate 21 and the second sealing plate 22 are fixed to each other by the fixing opening 23 and the fixing protrusion 24, ensuring the firmness of the seal, effectively preventing leakage of the contents of the packaging, and enhancing the sealing performance of the packaging bag.

[0025] The composite protective layer includes a waterproof and oil-repellent layer 51, a biodegradable layer 52, and an oil-repellent pleated layer 53. The waterproof and oil-repellent layer 51 is disposed at the lower end of the biodegradable layer 52, and the oil-repellent pleated layer 53 is disposed on the inner side of the biodegradable layer 52. The multi-layer design of the composite protective layer provides multiple layers of protection, enabling the packaging bag to maintain excellent waterproof and oil-repellent performance during long-term use, ensuring the safety of food and other products.

[0026] The biodegradable layer 52 is made of polylactic acid (PLA), which has good transparency and hardness and can degrade rapidly under specific conditions.

[0027] The waterproof and oil-proof layer 51 and the oil-proof wrinkled layer 53 are made of seaweed-based material, which has good waterproof and oil-proof properties and can be rapidly degraded in the natural environment.

[0028] The main body of the packaging bag 1 is made of starch-based composite material, which provides a certain degree of waterproof and oil-proof effect and has good biodegradability.

[0029] The lower inner side of the main body 1 of the packaging bag has a pull opening 7, which allows the composite protective layer to be separated from the bottom layer of the main body 1 of the packaging bag when the drawstring is lifted. This allows the composite protective layer to be lifted, thereby reducing heat transfer and improving the overall oil-proof performance of the packaging bag, increasing the service life of the packaging bag. Users can also easily open the packaging bag by pulling the drawstring 4, reducing the difficulty of operation.

[0030] When in use, pull out the pull rope 4 on the first sealing plate 21 and the second sealing plate 22 to lift the composite protective layer away from the bottom side of the main body 1 of the packaging bag, forming a suspended state. At the same time, rotate the pull rope 4 to tie it to the fixing post 6 to fix the position of both, reducing the seepage of oil from the food during the long packaging process, thereby reducing the impact on the user when holding the packaging bag.

[0031] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that the elements inherent in a process, method, article, or apparatus that includes a list of elements are included. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element. Additionally, portions of the technical solutions provided in the embodiments of this application that are consistent with the implementation principles of corresponding technical solutions in the prior art have not been described in detail to avoid excessive elaboration.

[0032] The above description of the disclosed embodiments enables those skilled in the art to make or use this application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this application. Therefore, this application is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A biodegradable oil-separating packaging bag, characterized in that: The packaging bag includes a main body (1) and a sealing plate. The sealing plate is connected to the upper end of the main body (1). The main body (1) and the sealing plate are provided with corresponding lifting channels (3). The lifting channels (3) are provided with pull ropes (4). The inner wall of the main body (1) is provided with a composite protective layer. One end of the pull rope (4) is fixedly connected to both sides of the lower end of the composite protective layer. The other end of the pull rope (4) passes through the sealing plate. Pulling out the pull rope (4) raises the composite protective layer.

2. The biodegradable oil-separating packaging bag according to claim 1, characterized in that: The main body of the packaging bag (1) has fixing posts (6) on both sides for wrapping and fixing the pull rope (4).

3. The biodegradable oil-separating packaging bag according to claim 1, characterized in that: The cover plate includes a first cover plate (21) and a second cover plate (22). The first cover plate (21) has a fixing opening (23) and the second cover plate (22) has a fixing protrusion (24). The fixing protrusion (24) passes through the fixing opening (23) to fix the first cover plate (21) and the second cover plate (22) to each other.

4. The biodegradable oil-separating packaging bag according to claim 1, characterized in that: The composite protective layer includes a waterproof and oil-blocking layer (51), a biodegradable layer (52), and an oil-blocking pleated layer (53). The waterproof and oil-blocking layer (51) is disposed at the lower end of the biodegradable layer (52), and the oil-blocking pleated layer (53) is disposed on the inner side of the biodegradable layer (52).

5. A biodegradable oil-separating packaging bag according to claim 4, characterized in that: The biodegradable layer (52) is made of polylactic acid material.

6. The biodegradable oil-separating packaging bag according to claim 4, characterized in that: The waterproof and oil-proof layer (51) and the oil-proof pleated layer (53) are made of seaweed-based material.

7. The biodegradable oil-separating packaging bag according to claim 1, characterized in that: The main body of the packaging bag (1) is made of starch-based composite material.

8. The biodegradable oil-separating packaging bag according to claim 1, characterized in that: A pull-out opening (7) is provided at the lower inner side of the main body of the packaging bag (1) so that the composite protective layer can be separated from the bottom layer of the main body of the packaging bag (1) when the drawstring is lifted.

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