A device and a method for applying cover sheets to cross-bottoms of tubular sections made of a plastic material. The device includes conveyor devices for transporting the tubular sections and for depositing the cover sheets on the cross-bottoms in a deposit area. The device includes a hot gas device with a gas heater and a nozzle connected to the gas heater and oriented toward the deposit area for the cover sheets so when gas is supplied to the gas heater, the gas flows along a flow path from the gas supply through the gas heater and the nozzle into the deposit area. The hot gas device has a hot gas reservoir with an internal volume for the temporary storage of hot gas, the flow path running through the hot gas reservoir. A gas mass flow ({dot over (m)}1, {dot over (m)}2, {dot over (m)}ges) of gas supplied to the gas heater is adjustable by a control.

The invention relates to a valve bag, in particular a cross-bottom valve bag, comprising a first wall and a second wall, which are joined to each other by means of side edges or side folds and by means of bottoms and which delimit a bag interior, comprising a valve, which is arranged in one of the bottoms and via which the bag interior can be filled with a filling material, and comprising venting openings in the first and/or in the second wall for venting the bag interior. At least one channel is provided on the outside of at least one wall, which channel covers the venting openings and is formed at least by two parallel fastening strips and by a cover strip, the cover strip likewise comprising venting openings, and wherein the shortest path between the parallel fastening strips along the cover strip is longer than the shortest path along the at least one wall or the cover strip, and/or the parallel fastening strips consist of stretchable material.

An automated case erector for erecting a one-piece insulating container and a method of automated case erecting are provided. The automated erector includes a case blank feeder for sequentially feeding a series of flat case blanks onto a conveyor, an insulation securing station for securing insulating members to the case blank, and a case erecting assembly for forming the combination of case blanks and insulating members secured thereto into a fully erected, three-dimensional container by simultaneously folding the combination of case blanks and insulating members.

The invention relates to a folded bag and a method for forming a bag from a square or rectangular shaped sheet, which method comprises the steps of dividing the sheet into nine fields arranged such that eight fields surround a central field; folding the sheet along folding-lines between and across the fields in such a way that the central field forms the bottom of the bag and the eight surrounding fields form the sides of the bag and at least one inner wall providing separated compartments in the bag.

A process for producing bags comprising: feeding a bottom web, a first side web and a second side web in a conversion process, each of the webs having a first side edge and a second side edge, wherein the first side edge of the first side web is aligned with the first side edge of the second side web, the second side edge of the first side web is aligned with the first side edge of the bottom web, and the second side edge of the second side web is aligned with the second side edge of the bottom web, thereby forming an inverted T-shaped web comprising a base having first and second wing portions and a riser, wherein the first wing portion comprises the bottom web and first side web, the second wing portion comprises the bottom web and the second side web, and the riser comprises the first and second side webs; sewing the first side web to the bottom layer in the first wing portion with a repeating pattern comprising a truncated triangle having a narrow portion and wider portion, and a tab separating the triangles, wherein the narrow portion of the triangle points toward the second side edge of the first side web; sewing the second side web to the bottom layer in the second wing portion with a repeating pattern comprising a truncated triangle having a narrow portion and wider portion, and a tab separating the triangles, wherein the narrow portion of the triangle points toward the second side edge of the second side web; contacting the first and second wing portions by folding them toward each other, thereby forming a folded web; rotating the folded web to the horizontal; sewing the first and second webs together in the riser with a repeating pattern comprising a flat-bottomed U shape with tabs separating the repeating U's, where the flat bottom of the U faces the first side edge of the first and second side webs, and the tabs separating the flat-bottomed U's are bisecting the tab separating the triangles in the first and second wing portions, thereby forming a web of sewn bags; cutting the web along the edge of sewn bags to remove the sewn portion corresponding to the flat bottom portion of the flat bottom U shape parallel to the edge, thereby forming a web of open top bags; and transversely cutting the web of open top bags at the middle of the truncated triangles and bisecting the repeating U's, thereby forming separate, open bags, and optionally scrap material.

A method for forming a food package product is disclosed. The food package product includes layers and patches of adhesive strategically placed on packaging stock that prevents leakage of liquid products. In an exemplary embodiment, the food package product is microwavable popcorn.

A waterproof paper bag made of paper and a method of forming same wherein at least one side the paper has been coated with a waterproof substance. The waterproof paper bag is manufactured from a sheet of paper which has been coated with a waterproof substance so that at least an inside of the paper bag is coated with the waterproof substance, such as a biodegradable resin, or wax. A piece of waterproof paper is then cut from the sheet and is folded and a flat bottom paper bag with the waterproof coating on an inside of the bag.

The present disclosure includes paper bags and methods for forming paper bags. Some of the bags may include a body, a first attachment portion configured to engage an arm of a bag holder, and a second attachment portion configured to engage another arm of the bag holder. In some aspects, the body defines an opening and includes opposing first and second sides, a first section disposed between the first side and the second side, and a second section disposed between the first and second sides, the second section moveable relative to the first section to define a cavity that is in communication with the opening. The first attachment portion may be closer to the first side of the body than the second side and the second attachment portion may be closer to the second side of the body than the first side.

The invention relates to a valve bag, in particular a cross-bottom valve bag, comprising a first wall and a second wall, which are joined to each other by means of side edges or side folds and by means of bottoms and which delimit a bag interior, comprising a valve, which is arranged in one of the bottoms and via which the bag interior can be filled with a filling material, and comprising venting openings in the first and/or in the second wall for venting the bag interior. At least one channel is provided on the outside of at least one wall, which channel covers the venting openings and is formed at least by two parallel fastening strips and by a cover strip, the cover strip likewise comprising venting openings, and wherein the shortest path between the parallel fastening strips along the cover strip is longer than the shortest path along the at least one wall or the cover strip, and/or the parallel fastening strips consist of stretchable material.

A method for producing a tool including a sheet, the method including the steps of: providing a first cellulose sheet; attaching first and second plastic layers each to one side of the first cellulose sheet; upon the attaching, placing a first side of a plastic object on the first plastic layer; pressing a metal object on a portion of a second side of the plastic object; vibrating the metal object parallel to the first plastic layer together with the pressing thereon; and ceasing the vibrating, thereby ceasing the heating.