The invention relates to a welding device (1) for producing tubular bodies by the edge-side welding of two substrate edges (2, 3), in particular two laminate edges, said welding device having a continuous, circulating first contact belt (5) for coming into contact with the substrate (4), and an energy source (12, 13) for providing welding energy. According to the invention, the first contact belt (5) has a seamless polyimide contact surface (35) for coming into contact with the substrate (4).

A polar functional group is added onto a surface of a metallic member. A resin member contains an adhesive functional group. The adhesive functional group and the polar functional group attract each other. A method for joining the metallic member and the resin member to each other includes: heating a junction between the metallic member and the resin member while pressing the metallic member and the resin member against each other with a first load; maintaining temperature of the junction higher than melting temperature of a resin that structures the resin member while pressing the metallic member and the resin member with each other with a second load smaller than the first load; and cooling the junction to temperature lower than the melting temperature while pressing the metallic member and the resin member against each other with a third load larger than the second load.

The present invention is a method for manufacturing inflatable bladders for use in articles of manufacture. The method includes the steps of providing a first polymer film, applying a curable release coating to the polymer film in a pattern that corresponds to the configuration of the inflatable bladder, curing the release coating to the first polymer film, providing a second polymer film with the first polymer film to form a layered element such that the release coating is disposed between the polymer films, positioning the layered element between two plies of material, applying heat and pressure to adhere the polymer films together except in the area where the release coating has been applied to form an inflatable compartment surrounded by a sealed perimeter, and removing the plies of material from the adhered first and second polymer films.

A method for producing a decorative sheet includes the steps of: (a) pressing a thermoplastic resin film (a) on a preheated rotating heating drum, and then pressing a transfer film (b) having a hot-melt adhesive layer, a resin coating, a release coating layer, and a film base material in order such that the hot-melt adhesive layer is positioned in the film (a) side; (β) feeding/supplying a pressed body obtained in the Step (α) between a rotating design-imparting roll and a rotating receiving roll such that the transfer film (b) is positioned in the design-imparting-roll side; and (γ) sequentially passing a laminated sheet obtained in the Step (β) through a first chill roll whose temperature is set to 50° C. to 90° C., and a second chill roll whose temperature is set to a temperature of 20° C. to 70° C. which is lower than the first-chill roll temperature to cool the laminated sheet.

A composite belt assembly for a band sealer is provided. The composite belt assembly comprises a belt comprising a main belt; a first layer; and a second layer; wherein the first layer is arranged in contact with the main belt, preferably between the second layer and the main belt; and the first layer includes an attachment portion, configured to contact the main belt and the second layer. There is also provided a band sealer comprising a composite belt assembly and a packaging line comprising the band sealer. There is further provided a method for heat sealing a package, comprising providing a composite belt assembly, gripping a bag neck of the package using the composite belt assembly, guiding the bag neck of the package along a movement plane using the composite belt assembly providing a sealing element configured for heat sealing a plastic material of the bag neck, and applying heat to at least part of the bag neck through the first layer of the composite belt assembly using the sealing element.

The present disclosure is directed to a compression belt for inflation and sealing devices. The device may include an inflation assembly, a heating assembly, and a drive mechanism. The inflation assembly may direct fluid between first and second overlapping plies of a flexible web material to inflate chambers between the plies. The heating assembly may be operable to heat the first and second plies of the web material to create a longitudinal heat seal that seals the fluid in the inflated chambers. The drive mechanism may drive the web material in a downstream direction. The drive mechanism may tension the web material against the heating assembly. The drive mechanism may include a first belt including a high grip material on a surface that contacts the web material to grip the web material during heating by the heating assembly.

A machine for converting two different types of webs of inflatable material to two different types of inflated cushioning material includes an inflation arrangement, a sealing arrangement, and a tensioning device. The inflation arrangement is configured to provide air at a lower pressure to a first web of a first type of inflatable material to inflate the first type of inflatable material, and to provide air at a higher pressure to a second type of inflatable material to inflate the second type of inflatable material. The inflation arrangement includes a guide pin configured to the first and second webs and align the first and second webs on the machine. The sealing arrangement is configured to seal the first type of inflatable material and the second type of inflatable material to create the two different types of inflated cushioning material. The tensioning device is configured to provide a lower tensioning force to the first web as the first web moves between the inflation arrangement and the sealing arrangement, and to provide a higher tensioning force to the second web as the second web moves between the inflation arrangement and the sealing arrangement.

A bonding device includes a body defining a cavity, a controller provided in the cavity, an intake device provided on the body and configured to fill gas into the cavity under the control of the controller, an exhaust device provided on the body and configured to remove the gas from the cavity under the control of the controller, a heating device provided in the cavity and configured to heat the gas in the cavity under the control of the controller, and a cooling device provided on a side of the cavity and configured to dissipate heat from the cavity. The intake device and the exhaust device are in communication with the cavity. The heating device, the intake device, and the exhaust device are electrically coupled to the controller.

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.

A welding station for an installation for manufacturing packages with pads, the welding station including a plurality of longitudinal welding heads. Each welding head is configured to weld to one another two superposed sheets as said sheets advance in a first direction and may include a welder to apply heat on an action area. Each welding head has a main body, a first traction belt wound in the main body and a second traction belt wound to said main body, parallel to the first traction belt and separated from the first traction belt by a separation gap in a second direction which is transverse to the first direction. The action area is arranged in said separation gap, between both traction belts. Each of the longitudinal welding heads is configured to be able to be moved along the second direction.