3659results about "Bag making operations" patented technology

A horizontal nozzle welding machine reasonable in structure comprises a rack, a bag taking mechanism, a bag body horizontal conveying mechanism, a bag opening mechanism, a suction nozzle and bag body inserting mechanism, at least two heat sealing mechanisms and a finished product collecting mechanism. The machine is characterized in that a bag taking station, a bag opening station, an inserting station, at least one heat-sealing temporary parking station and a finished product collecting station are sequentially arranged on the rack along a bag body conveying path; the bag body horizontal conveying mechanism comprises a horizontal clamping conveying unit and a bag body machining process temporary clamping unit, all the heat sealing mechanisms are installed on the horizontal clamping conveying unit, and all the heat sealing mechanisms are in one-to-one correspondence with the inserting station and all the heat sealing temporary parking stations. The utility model has the beneficial effects that the bag body can be kept at an accurate position all the time, so that the working efficiency is improved; the number of the driving devices is effectively reduced, the energy utilization rate is greatly improved, the working efficiency is greatly improved, and the equipment cost and the production cost are greatly reduced.

The utility model discloses a forming die of a three-dimensional bag, which is used for providing shape support for a bag body in the process of forming a sheet material into the three-dimensional bag, and comprises a bottom wall, a pair of support walls opposite to each other in the width direction, and a pair of side walls opposite to each other in the length direction, the forming die comprises a grabbing assembly which is arranged at the top of the corresponding side of the side faces of the pair of side split faces and can move in a reciprocating mode in the height direction of the bag body. When the three-dimensional bag is formed, the pair of front surfaces are bent relative to the bottom surface and are respectively close to the pair of supporting walls, and the pair of side surfaces are bent relative to the pair of front surfaces and are respectively close to the pair of side walls of the forming mold; the grabbing assembly grabs the top of one of the pair of side facets on the corresponding side and reciprocates in the height direction, so that the bag opening folded edges on the tops of the pair of side facets are connected in an inserted mode in the height direction, and therefore accurate inserted connection of the bag opening folded edges on the tops of the pair of side facets can be achieved.

The invention provides a bag making method of bag making equipment, a bag making system, electronic equipment and a medium, and the method comprises the following steps: obtaining a current bag type parameter of a current target product corresponding to a current bag making period, and determining a current specification parameter of the bag making equipment corresponding to the current target product according to the current bag type parameter; and the current target state of the bag making component is determined according to the current specification parameters, and the state adjusting component is controlled to drive the bag making component to be switched from the current working state to the current target state. According to the bag making device, the state adjusting component can accurately control the position and motion parameters of the bag making component, and therefore it is guaranteed that the size of a produced packaging bag is consistent with the target specification. Compared with a manual adjustment mode, the method has the advantages that the automation degree and the adjustment precision of equipment adjustment are improved, and the gauge changing time of the bag making equipment is shortened.

A resealable bag assembly can include an open-ended bag and a zipper assembly having a tear strip. Interlocking profile bodies of the zipper assembly can repeatedly mate with each other to seal the bag closed and separate from each other to open the bag. The tear strip can be pulled to tear an opening through the zipper assembly. In contrast to some known bag assemblies having tear strips along top edges, top bends, or top folds in the bag assemblies, one or more examples of the zipper assemblies described herein may position the tear strip along a front side or surface of the bag assembly, which also can be the surface of the bag assembly that is presented to a consumer and may include indicia identifying the product inside the bag assembly and / or the entity manufacturing or selling the product.

The utility model discloses a heat-sealing and heat-cutting mechanism of a bag making machine. The heat-sealing and heat-cutting mechanism comprises a rack, the heat sealing mechanism is arranged on the rack; the hot cutting mechanism is arranged on the rack; the movable installation base is slidably installed on the rack, and a strip-shaped operation opening is formed in the middle of the movable installation base. The air cylinder is arranged on the rack and used for driving the movable mounting base to move repeatedly. The pressing platform is arranged on the movable mounting seat and is used for pressing to be in contact with the plastic film; according to the bag making machine, the downward pressing platform is started to make contact with the plastic film, and the heat sealing mechanism is started to penetrate through the operation opening to conduct hot pressing on the plastic film; the negative pressure adsorption assembly is started to adsorb the plastic film to the downward pressing platform, the first electric cylinder is started to drive the movable mounting base to move to the hot cutting station along with the plastic film, the situation that the position of the plastic film is prone to deviation in the conveying process is avoided, and the accuracy of the hot cutting position is guaranteed.

The utility model discloses automatic bag making and bagging equipment which comprises a machine base and an electric control cabinet, the machine base is sequentially provided with a feeding device, a shaping vacuum cylinder and an automatic bagging device, the inner wall of the shaping vacuum cylinder is provided with a plurality of suction ports in the circumferential direction, and the suction ports are used for adsorbing the outer wall of a bag material so that the bag material can be kept in a cylindrical shape. The automatic bagging device comprises an inner mold for sleeving a bag material, a straight pipe conveying and grabbing device used for tightly sucking the bag material and sleeving the bag material on the inner mold is further arranged between the shaping vacuum cylinder and the bagging automation device. The bag sealing and cutting device is used for heat-sealing the end part of the bag material to form a bag body and cutting off the connection between the bag body and the bag material, and the bent pipe conveying, grabbing and releasing device is used for adsorbing the end part of the unprocessed bag material to keep the bag material in a cylindrical shape, so that the whole process does not need manual intervention, continuous and rapid bag making and bagging operation can be realized, and the production efficiency is greatly improved.

The utility model discloses a bag bottom folding device which comprises a single bag body conveying part and a bag folding part, the single bag body conveying part comprises a conveying belt and a press-fit conveying assembly, and the press-fit conveying assembly comprises an upper conveying belt and a lower conveying belt which are used for press fit; the bag folding component comprises a bag blocking piece and a bag folding plate, the bag blocking piece is arranged above the discharging end of the conveying belt, the front end of the bag blocking piece is a folding part, and the bag folding plate is arranged between the conveying belt and the press-fit conveying assembly and ascends and descends up and down relative to the conveying belt. When the bag bottom is folded, the bag body on the conveying belt is located below the bag blocking piece, the bag bottom is located above the bag folding plate, the bag folding plate moves upwards to push the bag bottom to be folded upwards along the folding portion of the bag blocking piece, the bag folding plate moves upwards to the position above the bag body, the folded bag body moves forwards and enters the press-fit conveying assembly, the bag bottom is bonded with the bag surface, and gluing and folding of the bag bottom are achieved.

The invention relates to the technical field of flour waterproof packaging bags, in particular to a wear-resistant waterproof packaging bag for flour processing and production. An outer layer material of the packaging bag comprises the following raw materials in parts by mass: 75-85 parts of polyamide, 15-25 parts of a thermoplastic elastomer, 2-5 parts of nano calcium carbonate, 0.2-0.25 part of an antioxidant, 1-3 parts of a nucleating agent and 5-10 parts of a citrate plasticizer; the middle layer material of the packaging bag comprises the following raw materials in parts by mass: 55-65 parts of a polyamide monomer, 35-45 parts of a polyether monomer and 0.5-1.5 parts of a catalyst; the inner layer of the packaging bag is made of 100 parts of food-grade low-density polyethylene. According to the flour packaging bag, by optimizing the material formula and the preparation technology, balance of flexibility and rigidity is achieved, abrasion resistance and water resistance are remarkably enhanced, aging resistance stability is improved, accurate technology guarantee performance is achieved, efficient bonding and antistatic design are achieved, flour quality and transportation safety are guaranteed, and potential risks are reduced.

A flexible package having an inner sheet having a first surface and a second surface. The flexible package has an article reservoir for accepting an article to be shipped and one or more expansion chambers. The expansion chambers can be inflated or otherwise expanded to provide structure to the flexible package and to protect the article in the article reservoir.

The invention discloses a bacteriostatic and antiviral bamboo pulp paper-based sanitary isolation bag as well as a preparation method and application thereof, and belongs to the field of functional paper-based packaging materials. The isolation bag takes bamboo pulp fiber paper as a base material, and the surface of the isolation bag is coated with a water-based polyhydroxyalkanoate functional coating. According to the preparation method, a special polyphenol derivative-chitosan quaternary ammonium salt-nano zinc oxide organic-inorganic hybrid factor is introduced, and the problem of agglomeration of nano particles is effectively solved by utilizing the special bridging effect of polyphenol, so that high-density cation capture and oxidation inactivation sites are constructed on the surface of the coating. Compared with the prior art, the method has the advantages that the method does not need to depend on organic fluorine compounds, and the excellent waterproof and oil-proof barrier effect and the efficient inactivation of viruses can be achieved only through the extremely low coating amount. In addition, the isolation bag has unique environmental chemical responsiveness, can be efficiently dissociated under the alkaline condition to facilitate repulping recovery, can be completely biodegraded in the natural environment, and perfectly considers the requirements of biological safety protection and green environmental protection.

The utility model provides a waste rejecting device of packaging bag manufacturing equipment and the packaging bag manufacturing equipment, and the waste rejecting device comprises a plurality of industrial cameras arranged on a rack, and a waste collecting part positioned at the downstream of a plurality of sealing stations along the transportation direction of a transportation assembly, each sealing station is correspondingly provided with at least one industrial camera, and a lens of each industrial camera faces the sealing part of the packaging bag located at the corresponding sealing station, so that an image of the packaging bag at the sealing part can be accurately shot; moreover, the waste collecting part comprises a waste discharge containing cavity communicating with the conveying channel of the conveying assembly and a path switching part movably arranged between the conveying channel and the waste discharge containing cavity, the path switching part communicates with the conveying channel and the waste discharge containing cavity in a switchable mode, and therefore the waste discharge containing cavity can be discharged through the path switching part under guiding of the path switching part. And waste products which do not meet the standard are output to the waste discharge containing cavity, and the yield of each batch of packaging bags produced by the packaging bag manufacturing equipment is increased.

This invention discloses a cutting device for plastic woven bags, comprising a frame, a drive mechanism, a conveying mechanism, and a cutting mechanism. The conveying mechanism includes a base, a conveying roller, and a pressing roller. The conveying roller includes a front roller and a rear roller. The base is fixedly mounted on the frame. The pressing roller, the front roller, and the rear roller are arranged sequentially above the base along the conveying direction of the plastic woven bag and are rotatably connected to the frame. The pressing roller, the front roller, and the rear roller are each driven to rotate by the drive mechanism mounted in the frame. The cutting mechanism is mounted on the frame between the front roller and the rear roller, and is located directly above the base. Using the cutting device of this invention, a thermal cutting method is employed, which not only provides a good cutting effect but also facilitates subsequent processes, effectively reduces processing costs, and avoids the emission of pungent odors during the cutting stage, achieving energy conservation and environmental protection. It has high processing efficiency, a simple overall structure, and is easy to operate, making it suitable for widespread application.

The utility model relates to the technical field of paper bag production, in particular to an improved dispensing device of a paper bag cylinder making machine, which comprises a machine body and an adjusting device, a conveyor belt is arranged on the surface of the machine body, a support is mounted on the upper surface of the machine body, a dispensing device is arranged on one side of the support, a glue feeding pipe is arranged at one end of the dispensing device, and a dispensing head is arranged on one side of the dispensing device. The adjusting device is arranged on the surface of the support and comprises two guide rails, the two guide rails are fixedly connected with the surface of the side, close to the glue dispenser, of the support, the surfaces of the guide rails are slidably connected with a sliding seat, the surface of the side, close to the glue dispenser, of the sliding seat is fixedly connected with two concave blocks, and the surfaces of the two sides of the glue dispenser are fixedly connected with sliding blocks. According to the utility model, through arrangement and adjustment, paper bags with various sizes and shapes can be flexibly adapted, the application range of the equipment is expanded, the glue can be accurately coated at the appointed positions of the paper bags, and the product quality is improved.

A machine for processing a web of material into bags includes several sections for processing the web of material into bags. An input section is configured to receive a roll of the web of material, a sealing section is configured to form seals in the web of material, and a winder section configured to wind the bags into rolls of bags may be included. A bander section configured to band each roll of bags may be included. A hem forming section configured to form a hem in the web of material may be included. A draw tape unwind station for unwinding draw tape for bags maybe included. Related methods are further disclosed.

The invention discloses an antibacterial sanitary towel packaging bag and a preparation method thereof. The antibacterial sanitary towel packaging bag comprises a base material layer, an antibacterial layer and a leakage-proof layer. The base material layer is prepared by blending modified polylactic acid, polybutylene adipate and the like and contains a degradation accelerant; the antibacterial layer contains antibacterial peptide-loaded nano montmorillonite, chitosan and the like, and loofah sponge fiber enhances slow release; and the leakage-proof layer is an ethylene-vinyl acetate copolymer and modified silicon dioxide blended film and is provided with breathable micropores. The preparation method comprises the steps of forming the base material layer, coating the antibacterial layer and the like, and process parameters of each layer are accurately controlled. According to the packaging bag, through cooperation of three layers, the bacteriostasis rate of the packaging bag on escherichia coli and staphylococcus aureus in 24 hours is higher than 99%, the degradation rate of the packaging bag in 83 days is higher than 88%, the oxygen permeability is 4.5-5.2 cm < 3 > / (m224h 0.1 MPa), and the packaging bag has the advantages of long-acting antibiosis, air permeability, leakage prevention, environmental protection, degradation and good mechanical properties, and meets the storage and use requirements of sanitary napkins.

The utility model discloses a bag collecting device of a packaging bag nozzle welding machine. The bag collecting device comprises a variable-pitch transverse moving device, an overturning bag pushing device and a bag collecting bag. The variable-pitch transverse moving device is arranged at the tail end of the welding device and used for adjusting the distance between the packaging bags conveyed by the welding device and conveying the packaging bags to the overturning bag pushing device, and the overturning bag pushing device can receive the packaging bags conveyed by the variable-pitch transverse moving device and push the packaging bags to the welding device. And the packaging bag is turned over to be changed into a vertical posture with a downward suction nozzle from a horizontal posture, and the packaging bag is pushed into the bag collecting device. The bag collecting device is provided with a material groove and a material groove output device capable of outputting the material groove, the material groove can receive and collect the packaging bags output by the overturning bag pushing device, and the material groove filled with the packaging bags is output through the material groove output device. By the adoption of the automatic bag collecting device, automatic bag collecting can be conducted on the packaging bag nozzle welding machine, production efficiency is improved, and production cost is reduced.

The utility model relates to the technical field of woven bag processing, and discloses an automatic woven bag turn-over processing device which comprises a machine tool, a conveying belt is arranged on the inner wall of the machine tool, a plurality of supporting columns are fixedly connected to the top of the machine tool, and the tops of the supporting columns are fixedly connected with the same top plate. A fixing frame is fixedly connected to the top of the machine tool, a guide roller is slidably connected to the outer wall of the fixing frame, a driving assembly is arranged on the front side of the guide roller, a guide plate is fixedly connected to the inner wall of the fixing frame, two guide grooves are formed in the top of the guide plate, and a clamping plate is slidably connected to the top of the guide plate. According to the utility model, the surface of the pinch roller is made of a rubber material with certain elasticity, so that the pinch roller can be better attached to the woven bag when pressing the surface of the woven bag, the end part of the woven bag is effectively prevented from tilting, and meanwhile, the clamping piece is rotationally connected with the top of the clamping plate, so that the clip can be flexibly opened and closed.

The utility model discloses a three-dimensional bag forming die which is used for providing shape support for a bag body in the process that a sheet material is formed into a three-dimensional bag, the forming die comprises a die core body and a pair of pushing and abutting assemblies movably arranged on the two sides of the die core body in the length direction, and dragging assemblies are arranged on the pushing and abutting assemblies. The dragging assembly comprises a grabbing part which can be arranged at the top of the pushing and abutting assembly in a reciprocating motion mode in the height direction; the forming die further comprises an adjusting assembly which extends in the length direction and is arranged on the die core body, the pair of pushing and abutting assemblies are in transmission connection to the two ends of the adjusting assembly respectively, and the adjusting assembly can adjust the relative distance of the pair of pushing and abutting assemblies in the length direction. According to the three-dimensional bag forming mold, automatic inserting forming of bag opening folded edges can be achieved through the grabbing part, the size of the mold can be adjusted through the adjusting assembly, the applicability is higher, and the three-dimensional bag manufacturing efficiency can be improved while the three-dimensional bag yield is guaranteed.

The utility model discloses an anti-wrinkle film covering device for aluminum foil bag production, and relates to the technical field of aluminum foil bag production. The film laminating device comprises a film laminating table, a mounting frame is fixedly mounted at the top of the film laminating table, a film roller and a rubber roller are respectively arranged on the inner wall of the mounting frame, and an unwinding assembly is fixedly mounted on the outer surface of the film laminating table. The lifting device is arranged on the inner side of the mounting frame, when an aluminum foil layer needs to be laminated, the film pressing assembly is driven by the lifting device to descend to be close to and attached to the top of the laminating table, and meanwhile after the aluminum foil layer is pulled to the laminating table, the aluminum foil layer can be rolled and flattened in cooperation with the flat pressing assembly; the top of the film pressing assembly has a certain pressing effect and keeps flatness when the film pressing assembly is conveyed, so that when the film pressing assembly is compounded with a film below the film pressing assembly, the film pressing assembly can be matched to roll and compound the film again, the conveying effect is driven, and the situation that the film production quality is influenced by wrinkles generated on the surface when the film pressing assembly is used for film laminating operation is prevented.

The utility model discloses a forming die of a hand bag, which comprises a bottom wall, a pair of support walls opposite to each other in the width direction and positioned on two sides of the bottom wall, and a limiting component matched with the bottom wall and used for limiting the bottom surface of a bag body, and the bottom wall is arranged at the lower ends of the pair of support walls in a relatively rotating manner; when the hand bag is formed, the two front faces of the hand bag are attached to the pair of supporting walls, the bottom face of the hand bag is attached to the bottom wall all the time through the limiting component, and then the bottom wall rotates relative to the supporting walls in the length direction, so that the height difference generated by the tops of the two opposite sides of the upper end of each side face in the height direction is changed; and finally, the bottom wall is turned back to the original position, so that the bag opening folded edges at the tops of the two opposite sides of the upper end of each side face are mutually inserted in the height direction of the bag body, in the process, the bottom face is not prone to deformation, the attractiveness of the appearance of the hand bag is guaranteed, and the yield of the hand bag is increased.

A cross cut device shears a web twice during a pause phase of an intermittent feed cycle. The cross cut device includes a cutter pair including an upper blade and a lower blade, a vertical movement device for reciprocating the upper blade with respect to the lower blade to shear the web, and a horizontal movement device for horizontally moving the cutter pair between a first position and a second position spaced upstream of the first position. During the reciprocation of the upper blade for the second shearing, the horizontal movement device starts to move the cutter pair from the second position to the first position after the upper blade reaches a lowermost height and before the upper blade exceeds a shear height. The feed device starts to feed the web after the cutter pair starts to move from the second position to the first position.

The utility model relates to a cutter scraping mechanism for a bag making machine, which comprises a slitting device with a cutter, a scraping device is arranged on one side of the cutter, and the scraping device comprises a scraping plate frame, a scraping block arranged on the scraping plate frame and a linear transmission mechanism driving the scraping block to slide relative to the scraping plate frame. The linear transmission mechanism is used for driving the scraping block to slide back and forth along the outer surface of the cutter, during use, the scraping steering air cylinder drives the driving gear to eccentrically rotate so as to drive the driven gear to rotate, the driven gear is linked with the scraping block to enter or break away from the lower portion of the cutter, and steering of the scraping block is achieved. Meanwhile, the scraping block can be driven by the scraping lifting air cylinder to axially ascend and descend to be close to or away from the cutter, axial ascending and descending of the scraping block are achieved, multi-direction movement control of the scraping block is achieved, and the complex cleaning requirement is met; and steering and lifting of the scraping block are conveniently achieved.

The utility model relates to the field of paper bag processing equipment, and discloses a bag body creasing mechanism of a square-bottom paper bag machine, which comprises a mounting shaft I and a mounting shaft II which are correspondingly arranged, the mounting shaft I and the mounting shaft II are connected with a power source for driving the mounting shaft I and the mounting shaft II to rotate, and at least two creasing knives are axially arranged on the mounting shaft I; every two adjacent creasing cutters are arranged in parallel at intervals, an elastic supporting roller is installed on the second installation shaft, the creasing cutters correspond to the elastic supporting roller in position, and the power source drives the first installation shaft to rotate so that every two adjacent creasing cutters can be extruded with the elastic supporting roller in sequence and used for generating two creasing marks on a paper bag passing through the position between the first installation shaft and the second installation shaft. And the distance between the two indentations is adjusted through the change of the rotating speed of the mounting shaft I or / and the mounting distance of the adjacent indentation cutters. By changing the rotating speed of the first mounting shaft or adjusting the mounting distance of the adjacent creasing cutters, the creasing distance can be flexibly adjusted, the paper bag creasing device is suitable for paper bags of different specifications, the adjusting process is simplified, the operation time is shortened, and the labor intensity is reduced.

The utility model relates to the technical field of woven bag processing, in particular to a woven bag flattening device, which comprises two groups of clamping mechanisms and a flattening mechanism, an unfolding mechanism for pre-flattening a woven bag is arranged below the clamping mechanisms, the unfolding mechanism comprises a bottom plate, a rotating plate is arranged below the bottom plate, and the rotating plate is rotatably connected with the bottom plate. A worm is arranged on one side of the rotating plate, teeth meshed with the worm are arranged on the side, close to the worm, of the rotating plate, an unfolding motor is fixedly arranged at the input end of the worm and fixedly connected with the bottom plate, and the lower end of the rotating plate is rotationally connected with two U-shaped frames. According to the device, the unfolding mechanism is arranged, before the woven bag is flattened, the woven bag is pre-unfolded, the woven bag can be effectively unfolded to be in a wrinkle-free state, a worm is adopted in the unfolding mechanism to be meshed with teeth of a rotating plate, the self-locking performance is achieved, and it can be guaranteed that the same unfolding degree is kept before and after the woven bag is flattened.

The invention belongs to the technical field of clothing storage, and discloses a storage bag and a preparation method thereof.The storage bag comprises a first cutting piece, a second cutting piece and an adjusting structure, the second cutting piece is sewn to the first cutting piece, the second cutting piece and the first cutting piece form a bag body, a storage cavity is formed in the bag body in a surrounding mode, and an opening binding assembly is arranged at an inlet of the storage cavity to bind the inlet of the bag body. The adjusting structure is arranged on the first cutting piece or the second cutting piece and comprises an adjusting buckle and a braid, the adjusting buckle is fixed to the first end of the braid, the braid is annularly arranged on the outer side of the bag body, and the second end of the braid is adjustably connected to the adjusting buckle. After clothes are contained in the bag body, the bag body containing the clothes can be compressed by pulling the second end of the braid, and the occupied space is reduced; and meanwhile, the storage bag can be conveniently carried by the braid. The pocket is arranged on one side of the first cutting piece, when the storage bag is not provided with clothes, the storage bag can be folded reversely, the storage bag is stored in the pocket, and storage and carrying are convenient.

The invention discloses a handle processing device of a paper bag machine. The rolled rope conveying mechanism is mounted on the rack, and the rolled rope conveying mechanism can bend and convey the rolled rope; the sticker conveying mechanism is mounted on the rack, and the pull rope conveying mechanism can convey and adhere stickers to the two sides of the pull rope; the adjusting mechanism is installed on the machine frame, the adjusting mechanism can adjust stickers, one machine can machine handles with different spacing specifications, switching is convenient, and the working efficiency is high.

An enclosure assembly can include panels on opposite sides of an interior volume, and a zipper assembly between the panels. The zipper assembly may include a tear strip that can be pulled and tear through one of the panels and create an opening through which the zipper assembly is accessible. This panel can include a deformation pattern formed from thinned out areas of the panel that one or more of overlap or do not overlap the tear strip. The deformation pattern can reduce a pulling force needed to tear through the panel within the deformation pattern relative to outside the deformation pattern.

The invention discloses a production process of an energy-saving and environment-friendly food packaging bag. The production process is realized through the following steps: S1, pretreatment of raw materials: carrying out physical activation treatment on a bio-based composite material; s2, multi-layer co-extrusion film blowing: precisely controlling the extrusion temperature in stages by adopting a gradient temperature control film blowing technology; s3, water-based ink printing, wherein water-based UV ink is used for flexographic printing; s4, ozone-ultraviolet synergetic sterilization: after the packaging bag is formed, the packaging bag enters a closed sterilization cabin to be sterilized; s5, slitting and forming: slitting the film into a customized size by adopting a laser slitting machine in a layered cutting mode, enhancing the interface bonding force through a bio-based composite material pre-activation technology, and reducing the use of an adhesive; the temperature of the three-layer structure is accurately regulated and controlled by adopting a gradient temperature control film blowing process, so that uniform compounding is realized; ozone permeation and ultraviolet photolysis are combined to realize synergistic sterilization, so that secondary pollution is avoided; and a biological enzymolysis recovery system is established to convert the waste into a PLA raw material, so that closed-loop production is formed.

The invention relates to the technical field of packaging bags, and particularly discloses an eight-edge-sealed side-edge handle bag and a manufacturing process of the eight-edge-sealed side-edge handle bag. The invention discloses an eight-edge-sealed side-edge handle bag which comprises a bag body and handle side edges, the bag body comprises a printing base film layer, a printing ink layer, a fifth adhesive layer, a middle layer, a sixth adhesive layer, a blocking layer, a seventh adhesive layer and a heat sealing layer which are sequentially arranged. The handle side edge comprises a high-strength handle layer, a first adhesive layer, a printing ink layer, a printing base film layer, a second adhesive layer, a middle layer, a third adhesive layer, a blocking layer, a fourth adhesive layer and a heat sealing layer which are sequentially arranged. A positioning release layer is arranged in the second adhesive layer, and the positioning release layer is connected with the printing base film layer. According to the packaging bag, the lifting handle is arranged on the side edge, the texture is soft, heavy objects are not held by hands and not prone to falling off, and convenience and rapidness are achieved.