Non-woven fabric bag with food safety seal and processing device thereof

The modular sealing structure and double-sided adhesive design solve the problem of easy damage to the non-woven bag caps, enabling individual replacement and reuse of the caps, improving the utilization rate and environmental friendliness of non-woven bags, and meeting the high safety requirements of food transportation.

CN122324399APending Publication Date: 2026-07-03ANHUI BUDAIWANG ENVIRONMENTAL PROTECTION TECHNOLOGY CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
ANHUI BUDAIWANG ENVIRONMENTAL PROTECTION TECHNOLOGY CO LTD
Filing Date
2026-04-20
Publication Date
2026-07-03

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Abstract

This invention provides a non-woven bag with a built-in food safety seal and its processing device. The non-woven bag with a built-in food safety seal includes: a bag body; two handle structures installed on the front and back of the bag body; a sealing structure installed on the top of the bag body; the sealing structure includes a sealing cap, multiple folding straps, and a pull tab; the multiple folding straps are used to attach the sealing cap to the top of the bag body, and the pull tab is attached to the top of the sealing cap; and an adhesive assembly installed on the front of the sealing structure. The non-woven bag with a built-in food safety seal provided by this invention adopts a modular design that separates the bag body from the sealing structure, enabling the individual disassembly and replacement of the sealing structure. This significantly improves the product utilization rate of the non-woven bag with a built-in food safety seal, reduces resource waste, fully meets the requirements of green and environmentally friendly use, and reduces usage costs, thus meeting the practical application needs of cost reduction and efficiency improvement.
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Description

Technical Field

[0001] This invention relates to the field of nonwoven bag technology, and in particular to a nonwoven bag with a built-in food safety seal and its processing device. Background Technology

[0002] Non-woven bags are environmentally friendly bags made from polymer raw materials such as polypropylene and directly formed through non-woven processes. They do not require spinning or weaving and are made by needle punching, hot rolling, and other methods. They are breathable, lightweight, non-toxic, biodegradable, and reusable. The production process is short and the cost is low. They are widely used in shopping, packaging, advertising and other scenarios. Compared with traditional plastic bags, they are more environmentally friendly and are commonly used green and environmentally friendly packaging products.

[0003] Non-woven bags with built-in food safety seals are environmentally friendly packaging bags made of non-woven fabric. The bag body has a one-time anti-counterfeiting food safety seal that cannot be restored once damaged, effectively preventing unauthorized opening during delivery. The bag combines the advantages of non-woven bags, such as being lightweight, breathable, and reusable, while also ensuring food transportation safety. It is often used in scenarios such as takeout and catering delivery, which can confirm that the food has not been opened and ensure food safety, while also meeting the requirements of green environmental protection and reducing plastic consumption.

[0004] Existing non-woven bags with food safety seals have a one-piece molded structure for the bag body and the sealing cap with sealant. After the contents are filled, the bag is sealed by the cap. However, during the unsealing process, the cap is easily damaged when the bag is opened. This damage directly causes the entire non-woven bag to lose its reusability, significantly reducing the utilization rate of the product and making it difficult to meet the actual application requirements of green environmental protection and cost reduction and efficiency improvement.

[0005] Therefore, it is necessary to provide a non-woven bag with a built-in food safety seal and its processing device to solve the above-mentioned technical problems. Summary of the Invention

[0006] This invention provides a non-woven bag with a built-in food safety seal and its processing device, which solves the problems of existing non-woven bags with food safety seals being easily damaged when unsealed due to the seal being integrally formed with the bag body, resulting in low utilization rate and being environmentally unfriendly.

[0007] To solve the above-mentioned technical problems, the present invention provides a non-woven bag with a built-in food safety seal and its processing device, comprising: a bag body; Two handle structures are installed on the front and back of the bag body. A sealing structure is installed on the top of the bag body. The sealing structure includes a sealing cap, multiple folding straps, and a pull tab. The multiple folding straps are used to install the sealing cap on the top of the bag body, and the pull tab is installed on the top of the sealing cap. An adhesive assembly is mounted on the front side of a sealing structure, and a sealing stencil assembly is mounted on the back side of the adhesive assembly; Two handles are installed on the front and back of the bag near the top. These handles are symmetrically mounted on the front and back, and are made of the same non-woven fabric as the bag body, ensuring a secure connection while also accommodating the force required for carrying, thus improving ease of use. The sealing structure at the top of the bag is an independent modular component. Its core sealing cap is connected to the top edge of the bag body via multiple sets of folded straps. The surface of the folded straps is coated with a special adhesive, achieving a flexible connection between the sealing cap and the bag body, and allowing for direct peeling and replacement of the sealing cap if damaged, without affecting the normal use of the bag. The pull tab on the top of the sealing cap is made of rigid plastic, making it easy for operators to lift and open, optimizing the opening and closing experience. The adhesive component fixed to the front of the sealing structure is a double-sided adhesive structure; one side firmly adheres to the sealing cap, and the other side is used for sealing the cap to the bag body after it is closed, achieving double sealing protection for the top opening of the bag. The sealing component on the back of the adhesive component is a disposable anti-counterfeiting food safety seal, covering the adhesive connection point of the adhesive component.

[0008] Preferably, the handle structure includes two adhesive structures and a handle, the two adhesive structures being used to attach the handle to one side of the bag body.

[0009] Preferably, the adhesive assembly includes an adhesive strip and a protective sheet, the protective sheet being used to protect the adhesive strip.

[0010] Preferably, limiting components are installed on both sides of the inside of the bag, and snap-fit ​​components are installed on both sides of the inner wall of the bag. The limiting components are located at the two corners of the inner wall of the bag.

[0011] Preferably, the limiting component includes two first adhesive joints and a limiting band, the two first adhesive joints being used to install the limiting band on both sides of the inside of the bag body, and the snap-fit ​​component includes two second adhesive joints and a snap-fit ​​band, the two second adhesive joints being used to install the snap-fit ​​band on both sides of the inner wall of the bag body.

[0012] A processing device for a non-woven bag with a built-in food safety seal includes: a mounting base; A lifting assembly is installed on the top of the mounting base. Two telescopic components are installed on the telescopic end of the lifting assembly. One telescopic component has a pressure plate installed on its telescopic end, and the other telescopic component has an adjustment component installed on its telescopic end. A glue injection head is installed at the bottom of the adjustment component through a connector, and a glue supply tube is installed on the outer surface of the connector. The glue supply hose is connected to the glue supply equipment, which can inject glue into the inside of the glue dispensing head. The lifting component can drive the two telescopic components to move up and down synchronously.

[0013] Preferably, a bracket is mounted on the top of the mounting base, a drive device is mounted on the back of the bracket, and a rotating frame is mounted on the output end of the drive device.

[0014] Preferably, the mounting base includes a base, a mounting structure, and an adjustment structure. The mounting structure is used to install the adjustment structure at the bottom of the base. A control box with a door is installed at the bottom of the inner wall of the mounting base. An operation panel is installed on the front of the mounting base. The control box is equipped with a lock. Inside the control box are installed power switches and controllers for the operation of auxiliary equipment. The threaded connection of the mounting structure and adjustment structure can adjust the stability of the base frame as needed.

[0015] Preferably, the lifting assembly includes a mounting frame, a first telescopic component, and a movable plate. The first telescopic component is used to mount the movable plate on the top of the inner wall of the mounting frame. An auxiliary component is mounted on the front of the lifting assembly, and the auxiliary component includes an auxiliary frame and a monitoring component. The first telescopic component is installed on the top of the mounting frame, and the monitoring component can assist in positioning and record the processing.

[0016] Preferably, the telescopic assembly includes a second telescopic component and a pressure monitoring component, the pressure monitoring component being installed at the telescopic end of the second telescopic component; the adjustment assembly includes an adjustment frame, a drive structure, a limit rod, an adjustment screw, and an internal threaded bracket, the adjustment screw and the limit rod being installed inside the adjustment frame, the internal threaded bracket being installed on the outer surface of the adjustment screw and the limit rod, and the drive structure being installed at one end of the adjustment frame.

[0017] Compared with related technologies, the non-woven bag with built-in food safety seal and its processing device provided by the present invention have the following beneficial effects: This invention provides a non-woven bag with a built-in food safety seal and its processing device. To improve the utilization rate of the non-woven bag with the built-in food safety seal, this design assembles a sealing structure on the top of the bag body. The sealing cap in the sealing structure is connected to the bag body by a folded band coated with adhesive. This connection method allows for individual replacement of the sealing cap if it is damaged. From a structural design perspective, this improves the overall utilization rate of the non-woven bag. By adopting a modular design that separates the bag body from the sealing structure, the sealing structure can be disassembled and replaced individually, significantly improving the product utilization rate of the non-woven bag with the built-in food safety seal, reducing resource waste, fully meeting the requirements of green and environmentally friendly use, and reducing usage costs, thus meeting the practical application needs of cost reduction and efficiency improvement. Attached Figure Description

[0018] Figure 1 A schematic diagram of the first embodiment of the non-woven bag with built-in food safety seal and its processing device provided by the present invention; Figure 2 A schematic diagram of the seal assembly is provided for this invention; Figure 3 A schematic diagram of the adhesive component is provided for this invention; Figure 4 Provided for the present invention Figure 2 An enlarged view of point A shown; Figure 5 Provided for the present invention Figure 3 An enlarged view of point B shown; Figure 6 A schematic diagram of the second embodiment of the non-woven bag with built-in food safety seal and its processing device provided by the present invention; Figure 7 Provided for the present invention Figure 6 An enlarged view of point C shown; Figure 8 A schematic diagram of the third embodiment of the non-woven bag with built-in food safety seal and its processing device provided by the present invention; Figure 9 A schematic diagram of the installation structure is provided for this invention; Figure 10 Provided for the present invention Figure 9 A magnified view of point D shown.

[0019] The diagram is labeled as follows: 1. Bag body; 2. Handle structure; 201. Adhesive structure; 202. Handle; 3. Sealing structure; 301. Sealing cap; 302. Folding strap; 303. Slipper pull; 4. Adhesive assembly; 401. Adhesive strip; 402. Protective sheet; 5. Sealing assembly; 6. Limiting assembly; 601. First adhesive joint; 602. Limiting strap; 7. Clip assembly; 701. Second adhesive joint; 702. Clip; 8. Mounting base; 801. Base; 802. Mounting structure; 803. Adjustment structure; 9. Control box; 10. Box door; 11. Operation panel. 12. Rotating frame; 13. Bracket; 14. Lifting assembly; 141. Mounting frame; 142. First telescopic component; 143. Movable plate; 15. Glue supply hose; 16. Auxiliary assembly; 161. Auxiliary frame; 162. Monitoring component; 17. Drive device; 18. Adjustment assembly; 181. Adjustment frame; 182. Drive structure; 183. Limit rod; 184. Adjusting screw; 185. Internal thread frame; 19. Telescopic assembly; 191. Second telescopic component; 192. Pressure monitoring component; 20. Pressure plate; 21. Connector; 22. Glue injection head; 23. Valve. Detailed Implementation

[0020] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0021] First Embodiment Please refer to the following: Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 ,in, Figure 1 A schematic diagram of the structure of a first embodiment of the non-woven bag with a built-in food safety seal provided by the present invention; Figure 2 A schematic diagram of the seal assembly is provided for this invention; Figure 3 A schematic diagram of the adhesive component is provided for this invention; Figure 4 Provided for the present invention Figure 2 Enlarged view of point A shown Figure 5 Provided for the present invention Figure 3 An enlarged view of point B is shown. The non-woven bag with a built-in food safety seal and its processing device include: bag body 1; Two handle structures 2 are installed on the front and back of the bag body 1. A sealing structure 3 is installed on the top of the bag body 1. The sealing structure 3 includes a sealing cover 301, multiple folding straps 302 and a pull head 303. The multiple folding straps 302 are used to install the sealing cover 301 on the top of the bag body 1, and the pull head 303 is installed on the top of the sealing cover 301. An adhesive component 4 is installed on the front side of the sealing structure 3, and a sealing component 5 is installed on the back side of the adhesive component 4; Two handle structures 2 are installed on the front and back of the bag body 1 near the top. The two handle structures 2 are symmetrically mounted on the front and back of the bag body 1. The handle structures 2 are integrally molded from the same non-woven fabric material as the bag body 1, ensuring a strong connection with the bag body 1 while adapting to the force requirements of hand carrying, thus improving ease of use. The sealing structure 3 mounted on the top of the bag body 1 is an independent modular component. Its core sealing cover 301 is connected to the top edge of the bag body 1 through multiple sets of folding straps 302. The surface of the folding straps 302 is coated with a special adhesive, achieving a flexible connection between the sealing cover 301 and the bag body 1, and allowing for direct peeling and replacement of the sealing cover 301 if damaged, without affecting the normal use of the bag body 1. The pull tab 303 on the top of the sealing cover 301 is rigid. Made of plastic, the sealing cap 301 is easy for operators to lift and open, optimizing the opening and closing experience. The adhesive component 4 fixed on the front of the sealing structure 3 is a double-sided adhesive structure. One side is firmly bonded to the sealing cap 301, and the other side is used to seal the sealing cap 301 to the bag body 1 after it is closed, achieving double sealing protection for the top opening of the bag body 1. The sealing component 5 mounted on the back of the adhesive component 4 is a disposable anti-counterfeiting food safety seal. The sealing component 5 covers the adhesive connection of the adhesive component 4, which can not only prevent the bag from being opened without authorization during delivery, ensuring the transportation safety of the food inside, but also achieve food safety traceability through the irreversibility after tearing. It is fully suitable for use scenarios with high food safety requirements such as catering takeout and food delivery. All connections on the bag body 1 are made of glue.

[0022] Please refer to Figure 2and Figure 4 The handle structure 2 includes two adhesive structures 201 and a handle 202. The two adhesive structures 201 are used to attach the handle 202 to one side of the bag body 1. The adhesive structure 201 is connected to the bag body 1 by adhesive.

[0023] Please refer to Figure 3 and Figure 5 The adhesive assembly 4 includes an adhesive strip 401 and a protective sheet 402, wherein the protective sheet 402 is used to protect the adhesive strip 401. The protective sheet 402 and the adhesive strip 401 are attached together. After the protective sheet 402 is torn open, the adhesive on the adhesive strip 401 can be bonded to the bag body 1.

[0024] The working principle of the non-woven bag with built-in food safety seal and its processing device provided by this invention is as follows: This design assembles a sealing structure 3 at the top of the bag body 1. The sealing cap 301 in the sealing structure 3 is connected to the bag body 1 via a folded band 302 coated with adhesive. This connection method allows for individual replacement of the sealing cap 301 if it is damaged, improving the overall utilization rate of the non-woven bag from a structural design perspective. In actual processing and use, the sealing structure 3 is first installed on one side of the bag body 1 using specialized processing equipment, ensuring that the sealing structure 3 is positioned at the top of the bag body 1. After the bag body 1 is filled with items, the sealing structure 3 is connected to the bag body 1 using the adhesive component 4, thus quickly achieving [the desired result]. The sealing operation at the top opening of the bag body 1 simultaneously connects the sealing component 5 to the bag body 1. The sealing component 5 provides food safety protection during food transportation, ensuring the safety of the contents of the bag. When the sealing structure 3 is damaged and cannot be used normally during use, the folding strap 302 can be directly removed from the connecting surface of the bag body 1 to separate the sealing structure 3 from the bag body 1. Then, a new sealing structure 3 can be replaced. The disassembly and replacement operation is convenient, and the bag body 1 can continue to be used, effectively avoiding the problem of the entire non-woven bag becoming unusable due to partial damage to the sealing structure 3.

[0025] Compared with related technologies, the non-woven bag with built-in food safety seal and its processing device provided by the present invention have the following beneficial effects: To improve the utilization rate of non-woven bags with built-in food safety seals, this design assembles a sealing structure 3 on the top of the bag body 1. The sealing cap 301 in the sealing structure 3 is connected to the bag body 1 via a folded strap 302 coated with adhesive. This connection method allows for the individual replacement of the sealing cap 301 if it is damaged. From a structural design perspective, this improves the overall utilization rate of the non-woven bag. By adopting a modular design that separates the bag body 1 from the sealing structure 3, the individual disassembly and replacement of the sealing structure 3 are achieved, significantly improving the product utilization rate of non-woven bags with built-in food safety seals, reducing resource waste, fully meeting the requirements of green and environmentally friendly use, and reducing usage costs, thus meeting the practical application needs of cost reduction and efficiency improvement.

[0026] Second Embodiment Please refer to the following: Figures 6-7 , Figure 6 A schematic diagram of the structure of a second embodiment of the non-woven bag with a built-in food safety seal provided by the present invention; Figure 7 Provided for the present invention Figure 6 The enlarged view at point C shows a nonwoven bag with a built-in food safety seal and its processing apparatus provided in the first embodiment of this application. The second embodiment of this application proposes another nonwoven bag with a built-in food safety seal and its processing apparatus. The second embodiment is merely a preferred embodiment of the first embodiment, and its implementation will not affect the independent implementation of the first embodiment.

[0027] Specifically, the difference between the non-woven bag with built-in food safety seal and its processing device provided in the second embodiment of this application is that, please refer to... Figure 5 Limiting components 6 are installed on both sides of the inside of the bag body 1, and snap-fit ​​components 7 are installed on both sides of the inner wall of the bag body 1. The limiting component 6 is located at the two corners of the inner wall of the bag body 1.

[0028] Please refer to Figure 5 and Figure 6 The limiting component 6 includes two first adhesive connectors 601 and a limiting band 602. The two first adhesive connectors 601 are used to install the limiting band 602 on both sides inside the bag body 1. The snap-fit ​​component 7 includes two second adhesive connectors 701 and a snap-fit ​​band 702. The two second adhesive connectors 701 are used to install the snap-fit ​​band 702 on both sides of the inner wall of the bag body 1. The limiting strap 602 and the card strap 702 are made of the same material as the bag body 1. The specific positions of the limiting component 6 and the carding component 7 are determined according to the requirements.

[0029] Compared with related technologies, the non-woven bag with built-in food safety seal and its processing device provided by the present invention have the following beneficial effects: To improve the stability of items placed inside bag 1, this design installs a set of limiting components 6 at diagonal positions on both sides of the inner wall of bag 1. Simultaneously, corresponding snap-fit ​​components 7 are installed on both sides inside bag 1. Both the limiting components 6 and snap-fit ​​components 7 are fixed to the inside of bag 1 with adhesive, ensuring a secure connection and simple assembly method that can be directly implemented by those skilled in the art. The limiting components 6 can be opened and closed. When in use, opening the limiting components 6 allows them to snap and limit the movement of round items inside bag 1. The diagonal limiting force restricts the displacement of round items within bag 1, effectively preventing collisions and displacement due to shaking. The snap-fit ​​components 7 on both sides inside bag 1 are adapted to... To accommodate the placement needs of various items, strip-shaped items can be directly inserted into the snap-fit ​​component 7 to form a dedicated placement space. The two types of components work together to achieve the classified placement of items inside the bag body 1, allowing round and strip-shaped items to each have their corresponding limiting structures, eliminating the need for mixed stacking. This structural design, through the snap-fit ​​limiting of the limiting component 6 and the snap-fit ​​fixing of the snap-fit ​​component 7, provides a double fixing effect for items of different shapes, significantly improving the stability of various items placed inside the bag body 1 and preventing damage caused by shaking during transportation and carrying. At the same time, the classified placement design also improves the ease of use of the bag body 1 and optimizes the user experience. The overall structural design is reasonable and highly practical, meeting the actual application needs of non-woven bags.

[0030] Third Embodiment Please refer to the following: Figures 8-9 - Figure 10 , Figure 8 A schematic diagram of the third embodiment of the non-woven bag with built-in food safety seal and its processing device provided by the present invention; Figure 9 A schematic diagram of the installation structure is provided for this invention; Figure 10 Provided for the present invention Figure 9 The enlarged view at point D shows a nonwoven bag with a built-in food safety seal and its processing apparatus provided in the first embodiment of this application. The third embodiment of this application proposes another nonwoven bag with a built-in food safety seal and its processing apparatus. The third embodiment is merely a preferred embodiment of the first embodiment, and its implementation will not affect the separate implementation of the first embodiment.

[0031] Specifically, the difference between the non-woven bag with built-in food safety seal and the processing device provided in the third embodiment of this application is that the processing device for a non-woven bag with built-in food safety seal includes: a mounting base 8; The lifting assembly 14 is mounted on the top of the mounting base 8. Two telescopic assemblies 19 are mounted on the telescopic end of the lifting assembly 14. One telescopic assembly 19 has a pressure plate 20 mounted on its telescopic end, and the other telescopic assembly 19 has an adjustment assembly 18 mounted on its telescopic end. The bottom of the adjustment assembly 18 is connected to a glue injection head 22 via a connector 21. A glue supply tube 15 is mounted on the outer surface of the connector 21. The glue supply tube 15 is connected to the glue supply equipment, which can inject glue into the inside of the glue injection head 22. The lifting component 14 can drive the two telescopic components 19 to move up and down synchronously.

[0032] Please refer to Figure 8 and Figure 9 A bracket 13 is mounted on the top of the mounting base 8, a drive device 17 is mounted on the back of the bracket 13, and a rotating frame 12 is mounted on the output end of the drive device 17. A scale is provided on the rotating frame 12 to improve the accuracy of adjusting the position after the bag body 1 is put on the outer surface.

[0033] Please refer to Figure 8 and Figure 9 The mounting base 8 includes a base 101, a mounting structure 102, and an adjustment structure 103. The mounting structure 102 is used to mount the adjustment structure 103 at the bottom of the base 101. A control box 9 with a door 10 is installed at the bottom of the inner wall of the mounting base 8. An operation panel 11 is installed on the front of the mounting base 8. The control box 9 is equipped with a lock. Inside the control box 9, there are power switches and controllers for the operation of auxiliary equipment. The threaded connection between the mounting structure 102 and the adjustment structure 103 can adjust the stability of the base frame 101 as needed.

[0034] Please refer to Figure 8 and Figure 9 The lifting assembly 14 includes a mounting frame 141, a first telescopic component 142, and a movable plate 143. The first telescopic component 142 is used to install the movable plate 143 on the top of the inner wall of the mounting frame 141. An auxiliary assembly 16 is installed on the front of the lifting assembly 14. The auxiliary assembly 16 includes an auxiliary frame 161 and a monitoring component 162. The first telescopic component 142 is installed on the top of the mounting bracket 141, and the monitoring component 162 can assist in positioning and record the processing process.

[0035] Please refer to Figure 9 and Figure 10The telescopic assembly 10 includes a second telescopic component 191 and a pressure monitoring component 192. The pressure monitoring component 192 is installed at the telescopic end of the second telescopic component 191. The adjustment assembly 18 includes an adjustment frame 181, a drive structure 182, a limiting rod 183, an adjustment screw 184, and an internal thread frame 185. The adjustment screw 184 and the limiting rod 183 are installed inside the adjustment frame 181. The internal thread frame 185 is installed on the outer surface of the adjustment screw 184 and the limiting rod 183. The drive structure 182 is installed at one end of the adjustment frame 181. The drive structure 182 provides rotational driving force for the adjusting screw 184, and the position of the dispensing head 22 can be adjusted by adjusting the assembly 18.

[0036] Compared with related technologies, the non-woven bag with built-in food safety seal and its processing device provided by the present invention have the following beneficial effects: To improve the processing efficiency of non-woven bags with built-in food safety seals, this design uses an adjustable glue injection head 22 in conjunction with a pressure plate 20 to achieve rapid connection and assembly of the sealing structure 3, handle structure 2, and bag body 1. The overall structural design is adapted to the batch processing needs of non-woven bags, and the operation process is simple and can be standardized. During processing, the bag body 1 is first placed on the outer surface of the rotating frame 12. The operator can manually and precisely adjust the assembly position of the bag body 1 on the rotating frame 12 according to the scale markings on the outer surface of the rotating frame 12 to ensure the positional accuracy of glue application and connection. The telescopic component 19 provided next to the rotating frame 12 can alternately drive the glue injection head 22 and the pressure plate 20 to move downwards. The glue injection head 22 first evenly applies glue to the corresponding connection position on the outer surface of the bag body 1. Then, the pressure plate 20 presses the pre-manually aligned sealing structure 3 and handle structure 2 onto the glue application position of the bag body 1. The continuous action of gluing and pressing completes the rapid installation of a single handle structure 2 or sealing structure 3. At the same time, the rotating frame 12 is connected to the driving device 17, which can drive the rotating frame 12 to achieve the flipping action. After the handle structure 2 on one side is installed, the rotating frame 12 flips over to complete the corresponding installation of the handle structure 2 on the other side. There is no need to manually adjust the placement angle of the bag body 1, realizing the continuous assembly of the double-sided structure. This design integrates the installation process of sealing structure 3 and handle structure 2 into a continuous operation through the positioning of the rotating frame 12, the linkage of the telescopic component 19 for gluing and pressing, and the automatic flipping of the driving device 17. It eliminates the tedious steps of repeated manual positioning and pressing, greatly improves the efficiency of gluing and pressing, effectively improves the overall processing efficiency of non-woven bags with built-in food safety seals, and is suitable for the actual needs of industrial mass production. It has strong practicality and adaptability.

[0037] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural or procedural transformations made based on the content of the present invention specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of the present invention.

Claims

1. A non-woven bag with a built-in food safety seal, characterized in that, include: Bag body; Two handle structures are installed on the front and back of the bag body. A sealing structure is installed on the top of the bag body. The sealing structure includes a sealing cap, multiple folding straps, and a pull tab. The multiple folding straps are used to install the sealing cap on the top of the bag body, and the pull tab is installed on the top of the sealing cap. An adhesive assembly is mounted on the front side of a sealing structure, and a sealing stencil is mounted on the back side of the adhesive assembly.

2. The non-woven bag with a built-in food safety seal according to claim 1, characterized in that, The handle structure includes two adhesive joints and a handle, the two adhesive joints being used to attach the handle to one side of the bag body.

3. The non-woven bag with a built-in food safety seal according to claim 1, characterized in that, The adhesive assembly includes an adhesive strip and a protective sheet, the protective sheet being used to protect the adhesive strip.

4. The non-woven bag with a built-in food safety seal according to claim 1, characterized in that, Limiting components are installed on both sides of the inside of the bag, and snap-fit ​​components are installed on both sides of the inner wall of the bag.

5. The non-woven bag with a built-in food safety seal according to claim 4, characterized in that, The limiting component includes two first adhesive joints and a limiting band. The two first adhesive joints are used to install the limiting band on both sides of the inside of the bag. The snap-fit ​​component includes two second adhesive joints and a snap-fit ​​band. The two second adhesive joints are used to install the snap-fit ​​band on both sides of the inner wall of the bag.

6. A processing device for a non-woven bag with a built-in food safety seal, characterized in that, include: Install the base frame; A lifting assembly is installed on the top of the mounting base. Two telescopic components are installed on the telescopic end of the lifting assembly. One telescopic component has a pressure plate installed on its telescopic end, and the other telescopic component has an adjustment component installed on its telescopic end. A glue injection head is installed at the bottom of the adjustment component through a connector, and a glue supply tube is installed on the outer surface of the connector.

7. The processing apparatus for non-woven bags with built-in food safety seals according to claim 6, characterized in that, A bracket is mounted on the top of the mounting base, a drive device is mounted on the back of the bracket, and a rotating frame is mounted on the output end of the drive device.

8. The processing apparatus for non-woven bags with built-in food safety seals according to claim 6, characterized in that, The mounting base includes a base frame, a mounting structure, and an adjustment structure. The mounting structure is used to install the adjustment structure at the bottom of the base frame. A control box with a door is installed at the bottom of the inner wall of the mounting base. An operation panel is installed on the front of the mounting base.

9. The processing apparatus for non-woven bags with built-in food safety seals according to claim 6, characterized in that, The lifting assembly includes a mounting frame, a first telescopic component, and a movable plate. The first telescopic component is used to mount the movable plate on the top of the inner wall of the mounting frame. An auxiliary component is mounted on the front of the lifting assembly, and the auxiliary component includes an auxiliary frame and a monitoring component.

10. The processing apparatus for non-woven bags with built-in food safety seals according to claim 6, characterized in that, The telescopic assembly includes a second telescopic component and a pressure monitoring component. The pressure monitoring component is installed at the telescopic end of the second telescopic component. The adjustment assembly includes an adjustment frame, a drive structure, a limit rod, an adjustment screw, and an internal threaded bracket. The adjustment screw and the limit rod are installed inside the adjustment frame, and the internal threaded bracket is installed on the outer surface of the adjustment screw and the limit rod. The drive structure is installed at one end of the adjustment frame.