Abstract: The invention relates to a method for producing and depositing a bag, in particular a flap bag (1), wherein the bag has a base, a filling opening and, in a pocket region (3), two layers, and the two layers are welded together at least in the region of a side seam (6) of the bag, wherein the bag is then moved by means of at least one transport arm (9) to a depositing device and during the movement is held on the transport arm (9) by means of negative pressure, characterised in that the at least one transport arm (9) is oriented parallel to the side seam (6) of the bag, and after welding of the two layers, as a result of which the side seam (6) is formed, the side region of the bag is placed on the transport arm (9) and during movement to the depositing device and up until depositing, the bag is held on the transport arm (9) by means of negative pressure.

Abstract: The invention relates to a drawstring bag (1) made of two lateral parts (2, 3) which are connected together at the lateral edges (4) of the parts. A receiving region for a drawstring (7) is provided in the opening-side region of the drawstring bag (1), and a drawstring (7) is arranged in the receiving region. The drawstring (7) is connected to the drawstring bag (1) on one side and is freely accessible on the other side. The invention is characterized in that a locking strip (11) arranged on the drawstring (7) is provided between the region connected to the drawstring bag (1) and the freely accessible region of the drawstring (7), said locking strip coming into contact with an opening edge of the receiving region for the drawstring (7) when the locking strip has left the receiving region.

Abstract: The invention relates to a method for producing at least one stack (9) formed of bags (1), comprising the following steps: feeding tubular or semitubular material in order to form a bottom material layer (2) and a top material layer (3), introducing at least one weld seam (4) in order to connect the bottom material layer (2) and the top material layer (3) in order to form individual, but still connected bags (1), introducing a formatting fold (8) into the layer web, formed of still connected bags (1), separating the bags (1) connected in the formatted layer web into individual bags (1), wherein said bags (1) still have the formatting field (8), forming a packet of individual bags (1) into a stack (9) having a defined number of bags (1), and introducing at least one fold into the stack (9). The invention further relates to a bag (1), a stack (9), and a dispensing box (12).

Abstract: A package of plastic film for articles to be packaged is made by first forming in an inner layer of longitudinally extending plastic film or in an outer layer of longitudinally extending plastic film a plurality of longitudinally spaced labels each having an outer periphery releasably joined to the respective layer. The inner and outer layers are juxtaposed and welded together along transverse welds between the labels so as to form between the layers a longitudinal row of compartments each having a respective one of the labels. A respective article is inserted into each of the compartments a respective article. Only the labels are adhered to the respective articles such that when one of the articles is removed from the respective compartment the respective label is separated from the respective layer and stays on the removed article.

Abstract: The invention relates to a method for the automatic production of bags (9) that are equipped with a sealing device (3). Said method comprises the following steps: provision (P) of at least one web of plastic film (1), provision of a sealing device (3), fixing of the sealing device (3) to the web of plastic film (1) and welding (7, 8) of the web of plastic film (1) to form bags (9). According to said method, the plastic-film web (1) is perforated (2) at a distance from its edge (5) prior to the provision (P) of the sealing device (3) and the complementary sealing profile (3) is fixed to the web of plastic film (1) directly over the perforation. The bag (9) is then formed and welded by means of at least one longitudinal (7) and/or transversal weld (8).

Abstract: A free-standing bag and a method for producing a free-standing bag from a thermoplastic synthetic film is disclosed. The bag includes a front panel and a back panel, which are connected to one another by lateral seams thus forming a filling opening, and in a collapsed state of the bag, having an inwardly folded base, whereby the inwardly folded base is comprised of a front panel fold as well as a back panel fold, both folds being sealed into the lateral seams, and whereby in the area of the inwardly folded base, an assembly strip is attached, which is made of a reinforced plastic film, and that the assembly strip terminates at a distance from the lateral seams, whereby a reinforcing strip is attached or glued to the inside and/or outside of the front panel and the back panel in the area of the filling opening.

Abstract: A waterless-toilet liner has a seat panel adapted to lie atop a waterless-toilet seat and formed with a central hole of a size and shape generally corresponding to a size and shape of the hole of the seat, and a bag having an upper rim secured to the seat panel around the hole therein. This liner is made by first advancing a foil tube to a first work station and forming a cross-seam and cut in the foil tube-to cut therefrom a bag having an open end. Then the open end of the bag is fitted between a pair of foil sheet. An opening is cut through the foil sheets and open end of the bag and the edges of the bag at the opening and there adjacent are bonded to the foil sheets. Then the foil sheets are cut through or perforated downstream of the bag.

Abstract: The invention relates to a thermoplastic film bag comprising a front wall (1) and a rear wall (2), which are joined to one another by lateral weld seams (3, 4) while forming a filling opening (6) and are each double-plied in the area of the filling opening (6), and comprising two pull-strips (7, 8). These pull-strips extend over the width of the bag, whereby one is inserted between both plies of the front wall (1) and of the rear wall (2) and they are welded to one another at both ends thereof. The inventive bag also comprises a grasping hole (11) that at least partially exposes the pull-strip, and a partially detachable adhesive tape (13) is placed on the inner surface of the pull-strip (7) in the area of the grasping hole (11).

Abstract: Devices for cross-welding or cross-separating welding plastic films (2) are used in a manner known per se in machines for producing bags, said devices comprising a welding roller (3) and a heated welder terminal (4) which can be moved reciprocally and between which the plastic films (2) are guided for welding. According to the invention, the welding roller (3) is covered by a continuous belt (5).

Abstract: The invention relates to a device for producing and withdrawing stacks of plastic bags, especially bags for automatic machines, in coordination with a gradually moving pin stack chain (4) from which the bag packages (6) are removed in a simplified and accelerated manner with the aid of a robot (16) that has a multifunctional hand (17) and automatically executes all essential manipulations and/or movements required for the formation and piling of the bag stacks and finally delivers them to an unloading station (62).

Abstract: The invention relates to a delivery device for the sections of a strip of film that are fed in a direction of conveyance, especially in a bead welding machine, comprising a rotor (40) that is driven and rotated around an axis (40) lying parallel thereto on the plane of conveyance with several contact areas that extend radially towards the axis of rotation (40) and which grasp successively fed strip sections in an operational mode, deflect said strip sections from the plane of conveyance and deliver them to a delivery station, whereby each respective contact area (10) of the rotor comprises suction areas (12) that can be subjected to an underpressure to hold said strip sections on the contact areas (10) when the contact areas (10) of the rotor move through the segment of a circle (14) between a first and a second position of rotation (16 or 18). In order to achieve trouble-free delivery of said strip sections, the angle of the circle segment (14) can be adjusted within limits.

Abstract: Foil bags are formed as new paper bags by fusing together two webs and tying a detachable strap which has a suspension opening to one said opening of each bag, the strap being separated by a perforation line from the respective side of the bag. A pocket is formed at the end of the bag opposite the insertion opening and can have a flap provided with an adhesive strip covered by a masking layer.

Abstract: A piece of closed tearable mail to be checked for contaminants is inserted through a closable opening into a transparent envelope. The envelope has a pair of panels each formed adjacent an end of the envelope with a double-folded region past which the piece of mail extends when contained in the envelope so that once the contained mail to be checked can be gripped through the panels to both sides of the double-folded region and torn open to check if it contains a contaminant.

Abstract: The invention relates to a method and a device for interlocking stackwise plastic bags, especially bags for automatic machines, by welding, wherein welding is effected by an interlocking device (21) integrated into the grip hand (17) of a robot (16) with the purpose of simplifying welding.

Abstract: A stack of plastic foil bags has a flap projecting beyond a filling opening on one broad side of the each bag which has a corner region delimited by perforations and formed in the corner region with at least one interlocking point for joining the bags in the stack and a stack-incorporation means separate from the interlocking point and enabling assembly of the bags into the stack.

Abstract: An apparatus for controlling the web tension in a perforation-welding system for making bags from synthetic resin foil webs in which whistling noises are eliminated by passing the web over a wall of a polygonal duct having an air outlet opening to which compressed air is fed. The air cushion and hence the spacing of the web from the wall is measured by an ultrasonic detector on the opposite of the web.

Abstract: A device for stacking and delivering plastic bags, especially for stacks to be fed to automatic packaging machines and used in conjunction with a bag making apparatus. The conveyor has needles piercing through the bags which are stacked on the conveyor and a gripper hand can engage the stack to remove it from the conveyor. The gripper hand has a stripping aid engaging the stack in the region of the needles to facilitate withdrawal of the stack from the needles.

Abstract: The invention relates to a method and a device for continuously producing, handling and filling bags (8), especially bags for handling by automatic machines, formed from a thermoplastic line of film. The aim of the invention is to facilitate handling in the logistical sequence between the bags (8) being produced and being filled and to improve the quality of the bag stacks (6). To this end, the bags (8) are attached (22) in places, then held in place in the area of a packing machine by holding elements (31) which interact with suspension holes (18). The attachment (22) on the bag stack (6) is then removed, after which the bags (8) are filled. The filling movement releases the bags (8) from the holding elements (31) and the bags (8) are finally sealed. The bags (8) are advantageously separated by a clamping and pulling-apart apparatus located in the area of the packing machine.

Abstract: A bag-making method and apparatus in which the synthetic resin film web, folded to provide a double-layer is passed on a lower suction belt conveyor continuously through a weld station in which a plurality of separating weld elements at a right angle to the web weld respective seams and separate respective bags from the web. The conveyor is advanced with a stroke which is equal to the number of such elements times the bag width. A multi-belt suction conveyor above the lower conveyor picks up the bags and transfers them to a pin-collecting conveyor on which stacks of the bags are formed and on which pads can be produced from the stacks for transfer by a robot arm into packing cartons.

Abstract: A method of making multiwall plastic bags wherein half-width foil webs are unwound from respective rolls below a segment of a path within which a multilayer full-width web is guided. The half-width webs can be slit and unfolded or simply unfolded to form full-width single-layer webs which are combined by superimposition to form the multilayer full-width web. The latter is folded and the folded multilayer width is formed into the bags.