Abstract: The product efficiency of bags each with an end face part is increased. A panel webs is guided to be divided along a line of weakness of the panel web and to be folded along division edges of the panel web. This guiding of the first panel and temporary sealed sections cause a side gusset to be cut open along a line of weakness of the side gusset such that open surfaces are formed. After the forming of the open surfaces, an end face web is supplied to be superposed on folded parts of the panel web and the open surfaces of the side gusset.

Abstract: In a method for producing a collection of pre-products by wrapping a second pre-product around a first pre-product, it is provided according to the invention that said method comprises a number of steps. In one step, a first pre-product is provided, which has an edge region. In another step, a second pre-product is provided. In a further step, the second pre-product is conveyed into a wrapping position. In a further step, the first pre-product is conveyed, with the edge region in front, against the second pre-product located in the wrapping position, as a result of which a wrapping operation is initiated on the second pre-product.

Abstract: A bag machine, and method of making bags, has a sealing station a perforating station, and a downstream seal and perforation inspection station, or a perforation detection station and/or a seal inspection station is disclosed. Control of the perforating and sealing stations is preferably closed loop. The seal and perforation inspection station preferably includes a perforation detector that triggers a vision system and/or a camera, and the film is illuminated. Preferably, the inspection station is enclosed in an opaque housing, or the ambient light is otherwise blocked. The seal and perforation inspection station preferably provides an image output a display visible to a user. The vision system preferably includes a perforation location module and/or determines the distance between the seal and perforation. A downstream processing station can be provided, and can have a detected fault input, connected to a fault detect output from the seal and perforation inspection station.

Abstract: A packaging device includes a conveyance mechanism, a heater, a guide portion, and a processor. The conveyance mechanism is configured to convey a base along a conveyance path. The heater is configured to heat the film and bond the film to the base that is conveyed by the conveyor. The guide portion is configured to guide the film toward the heater and move along a movement path that extends in a direction intersecting the conveyance path. The processor is configured to control the conveyance mechanism, the heater, and the guide portion.

Abstract: The composite structure includes a fiber-containing layer, such as a fiberboard layer or other layer having fibers from natural and/or synthetic sources, and a mineral-containing layer covering the fiber-containing layer. The fiber-containing layer and mineral-containing layer can be shaped, sized and manufactured such that the composite structure formed therefrom is capable of being machined to form a storage article. The composite structure has advantages in that it can improve whiteness, opacity, ink adhesion, materials reduction, barrier properties, recyclability, and printability. The composite can reduce polymer mass requirements for heat seal, barrier, and fiber adhesion. Further improvements include economics, pliability, and flexibility that is increased over the pliability of the fiber-containing layer alone.

Abstract: The present invention is a washable and reusable storage bag comprising a plastic coated canvas made from cotton and polyethylene. The storage bag comprises a front panel having a zipper and a back panel, a bottom edge and a top edge, and two side edges. The bag further comprises a rectangular transparent polyurethane window in the front panel, preferably in the shape of a rectangle. Two opposing sides of the transparent polyurethane window are heat sealed to the plastic coated canvas to create a liquid tight seal between the transparent polyurethane window and the plastic coated canvas. The outside of the storage bag can be customized with, e.g., designs, branding, and/or advertising. The storage bags can be hand washed, put in the dishwasher or put in the washing machine and clothes dryer.

Abstract: The composite structure includes a fiber-containing layer, such as a fiberboard layer or other layer having fibers from natural and/or synthetic sources, and a mineral-containing layer covering the fiber-containing layer. The fiber-containing layer and mineral-containing layer can be shaped, sized and manufactured such that the composite structure formed therefrom is capable of being machined to form a storage article. The composite structure has advantages in that it can improve whiteness, opacity, ink adhesion, materials reduction, barrier properties, recyclability, and printability. The composite can reduce polymer mass requirements for heat seal, barrier, and fiber adhesion. Further improvements include economics, pliability, and flexibility that is increased over the pliability of the fiber-containing layer alone.

Abstract: A plastic or other film bag is formed from a continuous extruded tube. The tube is flattened and sealed across its width at intervals to form bag bottoms. The bags are joined to one another at a perforation line and folded in thirds lengthwise prior to being rolled into a compact roll, either with or without supporting core. After folding the bags may be chisel cut through the center of the perforation line to assist in dispensing of the bags. The chisel cut will extend through all layers of the bag when folded, resulting in three chisel cuts in the bag. The bags may be gusseted for part or as much as all of their width. The bags may also be corona treated and printed on their outer surfaces. The bags may be formed from partially recycled materials and various combinations of linear low density, medium and high density polyethylene.

Abstract: The invention describes a machine (10) for producing bags of flexible material, comprising a reel-holder group (12) that removably supports at least one reel (14, 16) capable of supplying at least one said flexible material, a welding group (18) provided with at least one upper welding plate (20) and at least one corresponding lower welding plate (22) that are heated and provided with corresponding linear welding tracks, such upper (20) and lower (22) welding plates acting on the film according to a vertical alternate movement, and at least one cutting group (24, 26) that separates from each other the single bags that have just been obtained further to the welding operation on the film. The lower welding plate (22) is made integral with a base (30), whereas the upper welding plate (20) is mobile with an alternate motion along a plurality of vertical guiding columns (32).

Abstract: A package for containing and dispensing a product is disclosed. The package has a first layer, a second layer, and at least a first seal zone where the first layer is joined to the second layer by a peelable seal. The first seal zone has an inner perimeter that defines an unsealed pouch area for containing the sheet product. A tab cut is defined in the first layer that divides the package into a package zone and a tab zone. A method and relevant manufacturing equipment are also disclosed.

Abstract: An envelope is formed from continuous COPP film web by precreasing envelope body (13) and flap (14) fold lines along the web, continuously installing an adhesive tape along the flap portions and pre-cutting relief slots in the web corresponding to the flap side edges (15). The pre-creased web is folded and cut into individual envelopes by hot knife cutting, whereby the presence of the slots prevents the flaps from welding to the side seams even with the flap folded over. Envelopes produced by the method are suited to automatic stuffing. Apparatus for making envelopes in accordance with the invention is also described.

Abstract: The present invention encompasses principally a method of permitting packaging of one or more piece goods in one or more bag units, where said bag units are, in a selected transport direction, oriented after one another and mutually united with the aid of two, each arranged bag side allocated, thickened portions. A first means (1) is disposed whereby each one of said bag units, from a folded and/or united state, becomes openable by causing said respective bag side allocated thickened portions to pass along a distance from one another oriented rails or similar arrangements. A second means (2) is disclosed in order to, in thus opened bag units, allow insertion of one or more piece goods (G). A third means (3) is utilized, whereby each one of said bag units is sealed along a sealing zone, in order thereby to allow the enclosure of said one or more piece goods. A fourth means (4) is adapted to clip and/or cut off a sealed bag through or above said sealing zone, however under said thickened portion.

Abstract: A package formed of a package material comprising a heat-sealable inner layer, an outer layer, and a pressure-sensitive adhesive disposed between the inner layer and the outer layer. The package may include a gusset with a center fold that divides the gusset into a first folded portion and a second folded portion. The package may further include a transverse heat-seal region extending across the gusset whereby the first folded portion is sealed to itself by mating surfaces of the heat-sealable inner layer and the second folded portion is sealed to itself by mating surfaces of the heat-sealable inner layer. The package may also include a patterned die cut formed in the heat-sealable inner layer, wherein at least a portion of the patterned die cut is adjacent to the transverse heat-seal region of the gusset so as to allow a portion of the inner layer to delaminate and expose a portion of the pressure-sensitive adhesive when the center fold is unfolded and the resealable pour spout is opened.

Abstract: The present invention concerns a gusseted flexible bag In one embodiment, the flexible bag of the present invention is formed from the tube of material having a front side and a rear side. A pair of laterally disposed opposing gusset folds are formed in the tube along its sides. Each of the folds has a longitudinal crease. The bag further has a rear side flap extending from the rear side of the bag across the width of the tube which is folded over onto and hot air sealed to the front side of the tube of material. The gussets each have a slit approximate a first end of the tube thereby forming a front side flap. A front side flap may also be manufactured, if desired, which is then folded over when the rear side flap is folded so that the front side flat rests under the rear side flap. The rear side flap is hot air sealed to the front side of the bag with the front side flap being sealed therebetween.

Abstract: The disclosure relates to a thermo-forming packaging machine with a cutting station including a complete cutting tool. The thermo-forming packaging machine is designed such that the complete cutting tool is extractable in a direction of production of the packaging machine.

Abstract: A machine and method for making bags is described and includes a web traveling from an input section to a rotary drum, to an output section. The rotary drum includes at least one seal bar, having a first sealing zone, and an adjacent weakening zone. The weakening zone may be a heated perforator, includes a heating wire, or be disposed to create an auxiliary sealed area. The heating wire can have, connected thereto, a source of power that is at an adjustable voltage or magnitude, and/or pulsed, and/or a feedback loop. The heating wire may be an NiCr wire and make intermittent contact with the web and be disposed in an insert. The weakening zone may create a line of weakness that is uniform or varies in intensity, is a separating zone, or includes a heat film, a toothed blade, a row of pins, a source of air, or a source of vacuum. The sealing zones may include temperature zones, cartridge heaters, cooling air, or heated air, or a source of ultrasonic, microwave or radiative energy.

Abstract: The invention relates to a method for continuously manufacturing containers made of a flexible material from a single continuous laminar band, or from several continuous laminar bands which will be longitudinally attached to form a single continuous laminar band, which will subsequently be transversely cut. In both cases, in a stage of the production phase a single laminar band, folded over itself along longitudinal fold lines, is obtained, the cross-section of which, open or closed according to the embodiment variant, forms a planar figure in which there is distinguished the upper base of the container, which in a variant of the method comprises a portion of band previously provided with holes and corresponding spouts, collapsed on one side, said single laminar band being susceptible of being driven by means of two drive rollers.

Abstract: A machine and method for making bags is described and includes a web traveling from an input section to a rotary drum, to an output section. The rotary drum includes at least one seal bar, having a single sealing zone, and a weakening zone disposed within the single sealing zone. The single sealing zone may be a heated perforator, and may include a heating wire. The heating wire may be an NiCr wire stitched into the heater, and be disposed on a cap or on the seal bar. The weakening zone may create a line of weakness that is uniform or varies in intensity. The sealing zone may include temperature zones, cartridge heaters, cooling air, or heated air, or a source of ultrasonic, microwave or radiative energy.

Abstract: A machine and method for making bags is described and includes a web traveling from an input section to a rotary drum, to an output section. The rotary drum includes at least one seal bar, having a first sealing zone, and an adjacent weakening zone. The weakening zone may be a heated perforator, includes a heating wire, or be disposed to create an auxiliary sealed area. The heating wire can have, connected thereto, a source of power that is at an adjustable voltage or magnitude, and/or pulsed, and/or a feedback loop. The heating wire may be an NiCr wire and make intermittent contact with the web and be disposed in an insert. The weakening zone may create a line of weakness that is uniform or varies in intensity, is a separating zone, or includes a heat film, a toothed blade, a row of pins, a source of air, or a source of vacuum. The sealing zones may include temperature zones, cartridge heaters, cooling air, or heated air, or a source of ultrasonic, microwave or radiative energy.

Abstract: A machine for forming a flexible pouch having a spout fitment includes a frame, a transport device adjacent the frame for transporting a flexible material therealong, and a feeder device for supplying a roll of tape material having a plurality of fitments secured thereto. A fitment insertion station receives the roll of tape material with pre-applied fitments, and removes the fitment, and seals the fitment to a fitment receiving portion of the flexible material. A pouch body forming station operatively forms a body of the pouch from the flexible material, and an upper edge, a lower edge and a side edge extending therebetween.

Abstract: A trifold side seamed plastic produce bag includes a front wall and a taller back wall, first and second side edges sealed together and a seamless bag bottom. The taller back wall provides means for finding the bag opening. The bag is joined at the side edges to additional bags by a perforation. The bag is corona treated on at least one wall and promotional material is printed on the treated surface. The bags are folded to one third of their height to fit compact bag roll dispensers. The bags are folded in a Z-fold or C-fold configuration. The method and apparatus for producing the bags includes a slitter that removes a strip of plastic from only the top layer of the bag stream to form an extended flap on each bag. The method includes manufacturing the bags and winding them onto cores or forming the bags into coreless rolls.

Abstract: A bag (1) for storing perishable products such as fresh fruit and vegetables is disclosed. The bag is formed from a polymer film that has a film orientation direction and has an Elmendorf Tear Strength (ASTM D1922) in the range of 0.05 to 0.50 N in the film orientation direction. The bag comprises a bottom (8), an open top (10), a side wall comprising two wall sections (12,14) connected together by heat seals (2) extending between the top and the bottom of the bag. The bag is formed so that the film orientation direction of the film in the side wall is transverse to the heat seals. The bag also comprises a skirt (5) extending outwardly from each heat seal and at least one tear initiation notch (3) in at least one skirt.

Abstract: A machine for making bags from sheet material of indeterminate length, especially thermoplastic material, has a pair of spaced folders of special construction for folding the material lengthwise. The entry end of the machine can be adjusted as to height. An applicator for adhesive tape can be positioned between the folders. A special construction thermowelds the folded layers together along transverse lines and severs or perforates them along those lines.

Abstract: A first hanger and a second hanger are disposed on a working platform according to a hanging manufacturing apparatus for manufacturing an air enclosure, in which the first hanger is constituted by a first hanging frame and a plurality of first supporting arms and used for hanging a first hot sealing mold, the first hanging frame drives the first hot sealing mold on the plurality of first supporting arms to hot-seal an air cylinder film sheet while being moved to form a plurality of nodes on the air cylinder film sheet, and the second hanger is constituted by a second hanging frame and a plurality of second supporting arms and used for hanging a second hot sealing mold, the second hanging frame drives the second hot sealing mold on the plurality of second supporting arms to hot-seal the air cylinder film sheet while being moved to form a plurality of air cylinders on the air cylinder film sheet.

Abstract: A multi-layered bag with a re-sealable closure assembly attached thereto is provided, as well as a method of manufacturing the same. Specifically, multi-layered paper composite bags with a re-sealable closure assembly attached to the innermost layer of the bag as well as a method of manufacturing the same are provided. A slider-operated zipper is a particularly preferred embodiment of a re-sealable closure assembly. The bags may be gusseted and comprise an outer paper layer, a middle paper layer and an inner plastic film or sheet layer, and the bottom of the bag may be open bottomed or close bottomed.

Abstract: A double fold seal having an ultrasonic stitch is provided as a closure means for a bag formed from synthetic resin material, and especially a woven synthetic resin material. A transverse heat seal is created using an ultrasonic welder, for example, and at least two flaps formed outboard from the seal. The flaps are folded over one of the bag panels and ultimately over the heat seal so as to create a bag closure that is strong and leak resistant.

Abstract: A system and method for making bags in a continuous in-line process includes a central processing unit and a camera oriented to take an image of a bag based on a triggering signal. The camera provides an image to the central processing unit. The central processing unit is programmed to process the image and calculate a timing signal based on the image. A cylindrical rotatable drum having at least one seal bar provides a triggering signal to the central processing unit, to trigger when the camera should take the image. A perforation knife is controlled by a servo drive. The perforation knife is downstream of the drum. The servo drive receives the timing signal for activating the perforation knife from the central processing unit. The CPU uses the image and based on the distance between the seal region and the perforated line, counts pixels to result in an actual pixel count. The CPU then calculates a pixel count error by subtracting the actual pixel count from a predetermined pixel count setpoint.

Abstract: The object of the present invention is to provide a pleated stand-up packaging material which is capable of improving a heat seal property on a portion where a rib and a pleat cross at a right angle. Another object of the present invention is to provide a pleated stand-up packaging material which is capable of improving a stability and an esthetic appearance when it is stood up by sharply bending the portion where the rib and the pleat cross at a right angle.

Abstract: A plastic bag with a removable coupon section and a method for forming plastic bags with removable coupon sections is presented. The bag comprises a bag portion and a coupon portion. The coupon portion comprises two flaps. Each flap representing at least one coupon. The coupons are separable from the bag portion due to perforations. Where multiple coupons are contained on the same flap, the coupons may be separated from one another due to perforations. The flaps are either not joined to one another due to notching of the plastic film from which they are formed or are separable due to welded perforations. This enables the coupons the be individually removed without disturbing other coupons. In the method for making the plastic bags with a removable coupon section, a roll of plastic film is folded over onto itself and welded together. The initial weld forms the bottom of the bag portion. The coupon portion may be perforated to assist in the separation of the coupon from the bag portion.

Abstract: A method of manufacturing a bag from a polymer film is disclosed. The method comprises (a) forming a bag with a front wall, a back wall, a bottom wall, opposed sides defined by heat seals of the front and back walls, skirts extending outwardly from the heat seals and an opening allowing access to the interior of the bag, and (b) piercing the bag and forming micro-perforations to achieve MAP functionality using piercing methods that are selected to reduce the stiction of the film in the front and back walls significantly below the tear strength of the film in the film orientation direction.

Abstract: A method of manufacturing a pouch with a straw hole is provided that includes the steps of feeding a front-side film forming one panel of the pouch and a back-side film forming an other panel, from a roll of material, and punching a straw hole in one panel of the pouch. The method also includes the steps of feeding a seal material tape with a plurality of temporally punched portions, and each temporal punched portion has a size slightly larger than that of the straw hole, to a rear side of the panel with the straw hole. The method further includes the steps of temporally sealing the temporally punched portion of the seal material tape over the straw hole by aligning one temporally punched portion of the seal material tape with the straw hole, separating the temporally punched portion from the seal material tape and temporally sealing the temporally punched portion to the one panel.

Abstract: A machine and method for making bags is described and includes a web traveling from an input section to a rotary drum, to an output section. The rotary drum includes at least one seal bar, having a first sealing zone, and an adjacent weakening zone. The weakening zone may be a heated perforator, includes a heating wire, or be disposed to create an auxiliary sealed area. The heating wire can have, connected thereto, a source of power that is at an adjustable voltage or magnitude, and/or pulsed, and/or a feedback loop. The heating wire may be an NiCr wire and make intermittent contact with the web and be disposed in an insert. The weakening zone may create a line of weakness that is uniform or varies in intensity, is a separating zone, or includes a heat film, a toothed blade, a row of pins, a source of air, or a source of vacuum. The sealing zones may include temperature zones, cartridge heaters, cooling air, or heated air, or a source of ultrasonic, microwave or radiative energy.

Abstract: An apparatus and method for automatically folding a sheet of media, for example, a photographic paper about a fold line, such that an album page is formed. The photosensitive media has images only on one side. A heat activated adhesive sheet is provided between the sides of the photographic paper during folding. The adhesive sheet when exposed to heated and pressure rollers, will cause the sides of the photographic media to be secured to form a single album page.

Abstract: A beverage container and method for forming a beverage container having a straw pierceable portion in a wall. The beverage container has a port formed of a rigid frame having a membrane covering an aperture. The frame member is bonded to a flexible wall of a pouch. The membrane is mounted to the frame member to separate from the frame member when pushed by a straw. The frame guides the straw to the membrane. An alternative embodiment includes a dimple formed under heat and pressure in a mold pierceable by a straw.

Abstract: A side seamed plastic produce bag includes a front wall and a taller back wall, first and second side edges sealed together and a seamless bag bottom. The taller back wall provides means for finding the bag opening. The bag is joined at the side edges to additional bags by a perforation. The bag is corona treated on at least one of the front and back walls and advertising or promotional material is printed on the corona treated surface. The invention includes means for manufacturing the bags and winding them onto cores or forming the bags into coreless rolls. Dispensers are provided for both the cored and coreless rolls. The dispensers include a vertical container with an open top that is mounted on a planar base. The container includes a vertical slit for dispensing the bags. The dispenser for cored rolls includes a vertical rod on which the core revolves.

Abstract: Machine for manufacturing mesh bags from a continuous roll of tubular mesh, and for filling and closing said mesh bags, which comprise an expansion device which is perimetric to the tubular mesh, the core expander of which is equipped with a vertical aperture which, as if it were a slot, traverses said core expander and connects the two frontal faces thereof and extends from its base to an intermediate point, for which the core expander adopts an inverted “U” shape, the machine also being fitted with preventive welding means, adapted for partially welding the two frontal faces of the tubular mesh and, as the case may be, the adjoining laminates of thermally weldable material through the aperture of the core expander; a traction device which drags a section of the tubular mesh provided with a bottom; conveyor means; and second and third filling and closing stations, respectively, both being arranged linearly.

Abstract: A method of manufacturing an infusion package 10 comprising a porous-walled container 12 for an infusible substance and a support for the container by means of which the container can be mounted on a rim of a drinking vessel. The method comprises (i) making cuts in at least one web of a semi-rigid material in a direction transverse to the web length to define a plurality of support members 14, each cut defining a first end 16 of one support member and a second end 20 of an adjacent support member such that the first end includes a projection 18 and the second end includes a recess 22 the cutting of which recess produces the projection; (ii) bringing two such support members into opposed relationship with the first end of one of the support members disposed opposite the second end of the other of the support members; (iii) positioning an end region of the container between the opposed support members; and (iv) securing that end region to the support members.

Abstract: A cutting cylinder is mounted such that it can rotate and be driven and is provided with four cutting blades on its circumference, which blades divide the circumferential length into four sections arranged on the circumference of the cutting cylinder.

Abstract: A method of forming a plurality of floral sleeves having a uniform design or pattern and printed about a lower end thereof without requiring the waste of significant portions of sheet material is provided. The method includes the step of sealing and severing a pair of web portions along lines defined by coextensive first side edges and coextensive second side edges of decorative portions. In another aspect, the method includes the step of sealing and severing a pair of overlapping web portions provided with a plurality of decorative portions along a plurality of lines which traverse the decorative portions and each of the corresponding undecorative portions to form a plurality of sleeves wherein each sleeve has an upper portion and a lower portion with the lower portion having a decorative portion extending about the exterior circumference of the lower portion of the sleeve while the upper portion is free of any printing contained in the lower portion of an adjacently formed sleeve.

Abstract: Signatures are extracted from a folding apparatus of a web-fed rotary printing press. These signatures are extracted by an optionally switchable shunt that is arranged adjacent a cylinder of the folding apparatus. The folding apparatus is connected to a comminuting device.

Abstract: A method of forming a plurality of floral sleeves having a uniform design or pattern and printed about a lower end thereof without requiring the waste of significant portions of sheet material is provided. The method includes the step of sealing and severing a pair of web portions along lines defined by coextensive first side edges and coextensive second side edges of printed portions. In another aspect, the method includes the step of sealing and severing a pair of overlapping web portions provided with a plurality of printed portions along a plurality of lines which traverse the printed portions and each of the corresponding unprinted portions to form a plurality of sleeves wherein each sleeve has an upper portion and a lower portion with the lower portion having a printed portion extending about the exterior circumference of the lower portion of the sleeve while the upper portion is free of any printing contained in the lower portion of an adjacently formed sleeve.

Abstract: A pair of superposed laminated films are fed by a web feed unit, and a longitudinal heat-sealing unit and a lateral heat-sealing unit unite together the pair of films by heat-sealing. A notch and tearing incision forming unit forms notches and tearing incisions in the pair of films. A cutting unit cuts the thus processed pair of united films into packages.

Abstract: A method for manufacturing side fold sacks from a flat lying segment of a web of plastic tubular film provided with side folds. According to the method, the bottom end of the segment is provided in such a manner with a staggered cut or a staggered detachment along a perforation that a staggered portion is formed in which the rear wall projects beyond the front wall. Adhesive is applied to the staggered portion up to the area of a fold line, which is located adjacent the edge of the front wall that has been cut free. The staggered portion is then folded over the fold line and adhered onto the front wall to seal the bottom end of the side fold sack.

Abstract: A method of forming a plurality of floral sleeves having a uniform design or pattern and printed circumferentially about a lower end thereof without requiring the waste of significant portions of sheet material is provided. The method includes the step of sealing and severing a pair of web portions along lines defined by coextensive first side edges and coextensive second side edges of printed portions. In another aspect, the method includes the step of sealing and severing a pair of overlapping web portions provided with a plurality of printed portions along a plurality of lines which traverse the printed portions and each of the corresponding unprinted portions to form a plurality of sleeves wherein each sleeve has an upper portion and a lower portion with the lower portion having a printed portion extending continuously about the exterior circumference of the lower portion of the sleeve while the upper portion is free of any printing contained in the lower portion of an adjacently formed sleeve.

Abstract: A perforation device for making roll of plastic bag with an opening and a perforation line on each bag, comprising a cutting unit, an anvil unit and a expanding board, wherein, the cutting unit involves a main unit whereto are fitted with a toothed blade and a specified number of compressing blocks, the expanding board serving to expanding the material bag, the toothed blade on the cutting unit serving to cut and punch a surface of the material bag, making a roll of plastic bags each having an opening on one side, thereby fully automated packaging can be achieved by installing the present invention on an automatic weighing and packaging machine or a in conveyor packaging line for convenient packaging process, to reduce labor cost and enhance packaging efficiency.

Abstract: A method of and apparatus for the automated manufacture of a liner of a cargo container has a work area (35) over which tubular plastics material (15) may be drawn out, for forming the liner. A shuttle (39) is disposed between the layers (18, 19) of the material and is maintained stationary as the material is drawn out, until a portion of the liner (15) to carry an attachment is disposed over the shuttle (39). The shuttle provides a counter-force for the bonding of the attachment (23) (such as an access pipe) to the liner and also serves to hold apart the upper layer (18) of the material from the or each other layer during the bonding operation. The shuttle may have rollers (41) which run on an internal surface of the liner material and may be maintained stationary with respect to the work area by magnets (52, 53) on the work area (35) and the shuttle (39) respectively. Following the drawing of a sufficient length of material while holding the shuttle stationary, the drawn length may be welded across (FIG.

Abstract: In an apparatus for making plastic bags from a web material comprising two or more layers of plastic film, the material is intermittently fed for a length along a longitudinal feeding path, to successively make plastic bags with wastes, each of the wastes having upstream and downstream edges. The apparatus includes partially cutting means disposed at a first station predetermined along the feeding path. The material is partially cut by the partially cutting means along the upstream and downstream edges of waste whenever intermittently fed and temporarily stopped. The apparatus further includes waste removing means disposed at a second station predetermined downstream of and at a distance from the first station. The waste reaches the second station when the material is intermittently fed again after partially cut by the partially cutting means. In addition, the apparatus includes discharge means disposed at a third station predetermined downstream of and at a distance from the second station.

Abstract: In a device for cutting single blister packs from a blister band, a cutting member acts in a longitudinal direction with respect to the blister band, along the longitudinal edges thereof, so as to cut side extending strips of the blister band which extend beyond the length of the blister pack being produced. Cut out elements operate in alignment with a cutting line of the cutting member to cut shaped pieces of the blister band, so as to define corner zones of the blister packs. Shearing means operate crosswise to the blister band, in alignment with the corner zones defined by the cut out means, to separate single blister packs. The position of the cutting means and cut out means and/or the shearing means can be adjusted to produce blister packs having different sizes.

Abstract: A perforation blade is used for cutting a perforated tear line in a bag to form an easy-open corner portion. The perforation blade includes a base formed to span the corner portion of the bag. The base has a first end adapted to extend to the end edge of the bag proximate a seal line, and a second end adapted to extend to one side edge of the bag. A series of closely spaced perforation teeth are formed with the base, and are adapted to penetrate the first and second walls of the bag to form a corresponding series of perforations at the corner portion of the bag. A starter tooth is formed at the first end of the base, and is adapted to cut a starter nick in a skirt of the bag between the end edge and the proximate seal line. A burst protection gap is formed between the starter tooth and a first of the series of perforation teeth. The burst protection gap is adapted for safely receiving the seal line of the bag to prevent severing the seal line when cutting the perforations.

Abstract: Machine for manufacturing mesh bags from a continuous roll of tubular mesh, and for filling and closing said mesh bags, which comprise an expansion device which is perimetric to the tubular mesh, the core expander of which is equipped with a vertical aperture which, as if it were a slot, traverses said core expander and connects the two frontal faces thereof and extends from its base to an intermediate point, for which the core expander adopts an inverted “U” shape, the machine also being fitted with preventive welding means, adapted for partially welding the two frontal faces of the tubular mesh and, as the case may be, the adjoining laminates of thermally weldable material through the aperture of the core expander; a traction device which drags a section of the tubular mesh provided with a bottom; conveyor means; and second and third filling and closing stations, respectively, both being arranged linearly.