A method for connecting a thermoplastic line element to a connecting element includes the steps of: providing the at least one thermoplastic line element; providing the connecting element having a thermoplastic body wherein a heating element is embedded in the body for generating heat in a welding region for welding the body to the at least one line element; joining the connecting element to the at least one thermoplastic line element; providing a welding device for welding the connecting element to the at least one thermoplastic line element; welding the connecting element to at least one thermoplastic line element by generating heat in the welding region using the welding device. The welding of the connecting element to the at least one thermoplastic line element is stopped by the welding device before the end of the planned welding duration if an error criterion is met.

An example system comprises a water-soluble unit dose article comprising a fibrous non-woven sheet shaped to form a sealed internal compartment and a granular laundry detergent comprised within the internal compartment. The sheet comprises fibres which comprise polyvinyl alcohol polymer. The granular laundry detergent comprises perfume particles. The system also comprises sealing jaws, whereby at least one of the sealing jaws is a heated sealing jaw. A top seal of the internal compartment is sandwiched between the jaws. A first of said jaws comprises a flat portion along a longitudinal direction of the seal. The flat portion has a flat portion width along a direction perpendicular to the longitudinal direction of the seal. The flat portion width has a dimension of more than 3 times and of less than 20 times a thickness of the water-soluble fibrous non-woven sheet.

An example system comprises a water-soluble unit dose article comprising a fibrous non-woven sheet shaped to form a sealed internal compartment and a granular laundry detergent comprised within the internal compartment. The sheet comprises fibres which comprise polyvinyl alcohol polymer. The granular laundry detergent comprises perfume particles. The system also comprises sealing jaws, whereby at least one of the sealing jaws is a heated sealing jaw. A top seal of the internal compartment is sandwiched between the jaws. A first of said jaws comprises a protruding portion along a longitudinal direction of the seal. The protruding portion has a base along a direction perpendicular to the longitudinal direction of the seal. The base has a dimension of more than 3 times and of less than 20 times a thickness of the water-soluble fibrous non-woven sheet.

A methods of executing start, run, and stop sequences on a machine for converting a web of preformed pouches into inflated dunnage units. The pouches are defined by transverse seals extending from a remote edge to within a predetermined distance from an inflation edge.

A bagging apparatus including a first jaw, a second jaw, at least one of the first jaw and the second jaw being movable. The first jaw and second jaw are movable relative to each other between a first position for joining at least a portion of two sheets together and a second position associated with release of the two sheets, the two sheets forming at least a portion of a bag. At least one of the first jaw and the second jaw being removable from the apparatus without tools.

A fiber-reinforced thermoplastic resin member welding method includes: heating, by a heating unit, a welding target portion in which plural fiber-reinforced thermoplastic resin members layered on top of each other, each of the plural fiber-reinforced thermoplastic resin members including thermoplastic resin as a main composition, and the thermoplastic resin including reinforcing fibers; applying pressure, by a pressure applying unit, to the welding target portion; and cooling, by a cooling unit, at least a surface of the welding target portion at the same time as when the welding target portion is being heated by the heating unit or after the welding target portion has been heated by the heating unit.

A machine and method for converting film into bags or other articles 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 with a sealing zone and a weakening zone, or it can include or at least one sealing die that extends in the machine direction. The single sealing zone or sealing die 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.

A system includes a film processing module, a processor, and memory. The processor and memory are in communication with the film processing module. The processor is configured to dynamically coordinate movement of the film processing module relative to a moving web of film and to perform a function on the web of film with the film processing module.

A system for active alignment of an inflatable web with respect to an inflation nozzle as the web is dispensed from a roll for serial inflation by the inflation nozzle, the inflatable web including top and bottom sheets sealed together by transverse seals to define a series of inflatable chambers having an opening between the terminal ends of the transverse seals and proximate a longitudinal edge of the web for receiving inflation fluid from the nozzle, the system comprising: a spool adapted to support the roll so that the roll rotates about the spool as the inflatable web is withdrawn from the roll; an actuator arranged to adjust the position of the roll along the length of the spool; an inflation nozzle adapted to provide inflation fluid into the openings of the inflatable chambers as the web travels along a path of travel past the inflation nozzle; a tracking sensor comprising: a sensor arm pivotally mounted at a pivot point at a given location relative the inflation nozzle, the sensor arm having a contact portion, the sensor arm adapted to pivot on the pivot point as the terminal ends of the transverse seals of the web contact the contact portion of the sensor arm; and an analogue sensor adapted to detect the movement of the sensor arm and to generate an analogue signal varying in relation to the movement of the sensor arm; and a controller operative to receive the analogue signal and based on the analogue signal to send output to the actuator to adjust the position of the roll on the spool to maintain the transverse position of the web within a predetermined range.

A compound heat seal structure that, when heat-sealing a bag with a stacked area level difference, reliably seals even a section having different level and that can be easily opened. A compound heat seal structure is provided as a peelable seal in a band shape on a bag and a linear heat seal is added as a peelable seal in that band-shaped peelable heat seal in the longitudinal direction thereof.