A method of producing and filling a paperboard packaging container with bulk solids material comprising forming a tubular container body, closing an upper body opening of the tubular container body, filling bulk solids into the container body a bottom body opening of the tubular containing body, closing the bottom body opening, and turning container body such that an upper end is directed upwards in a vertical direction, thereby allowing improved control of the pressure within the packaging container.

The invention is directed to a balanced process for extrusion of a plastic corrugated sheet or blanks, and subsequent converting of the blanks into plastic boxes. The process includes conveying the blanks to a plurality of forming stations for incrementally forming features on the blank needed for forming a box. The present process is performed at a slower speed than typical paper corrugated forming.

A system and method of at least partially forming reinforced packages. The method comprises moving a construct in a machine direction on a construct conveyor. The construct conveyor can comprise a primary lug belt with a primary lug, the construct can be disposed on the primary lug belt, and the moving the construct can comprise moving the primary lug belt in the machine direction to push the construct in the machine direction. The method further can comprise positioning a liner on the construct conveyor so that the liner at least partially extends over the construct and moving the liner in the machine direction on a secondary lug belt of the construct conveyor. The secondary lug belt can comprise a secondary lug and the moving the liner can comprise moving the secondary lug belt in the machine direction to push the liner in the machine direction.

A system and method of at least partially forming reinforced packages. The method comprises moving a construct in a machine direction on a construct conveyor. The construct conveyor can comprise a primary lug belt with a primary lug, the construct can be disposed on the primary lug belt, and the moving the construct can comprise moving the primary lug belt in the machine direction to push the construct in the machine direction. The method further can comprise positioning a liner on the construct conveyor so that the liner at least partially extends over the construct and moving the liner in the machine direction on a secondary lug belt of the construct conveyor. The secondary lug belt can comprise a secondary lug and the moving the liner can comprise moving the secondary lug belt in the machine direction to push the liner in the machine direction.

A horizontal high-speed paper cup/paper bowl forming machine is provided. Specifically, the seven-station main rotation tower forming mechanism has a stamping die station, a paper feeding connection station, a first cup bottom preheating station, a second cup bottom preheating station, a bottom crimping station, a rolling station, and a main and auxiliary tower connection station. The seven-station auxiliary rotation tower forming mechanism has the main and auxiliary tower connection station, a cup rim lubrication station, a pre-crimping station, a first final crimping station, a second final crimping station, a cup outlet station, and a reserved vacant station. The stations arranged in sequence along the circumferential direction of the seven-station main rotation tower forming mechanism is in an opposite order to the stations arranged in sequence along the circumferential direction of the seven-station auxiliary rotation tower forming mechanism.

A horizontal high-speed paper cup/paper bowl forming machine is provided. Specifically, the seven-station main rotation tower forming mechanism has a stamping die station, a paper feeding connection station, a first cup bottom preheating station, a second cup bottom preheating station, a bottom crimping station, a rolling station, and a main and auxiliary tower connection station. The seven-station auxiliary rotation tower forming mechanism has the main and auxiliary tower connection station, a cup rim lubrication station, a pre-crimping station, a first final crimping station, a second final crimping station, a cup outlet station, and a reserved vacant station. The stations arranged in sequence along the circumferential direction of the seven-station main rotation tower forming mechanism is in an opposite order to the stations arranged in sequence along the circumferential direction of the seven-station auxiliary rotation tower forming mechanism.

A corrugated plastic box and a method for manufacturing a corrugated plastic box from a blank are provided. The method includes the steps of forming rounded edge seals on the perimeter edges of the blank, pre-sealing portions of the blank to form a plurality of areas in which major and minor flap slots and a glue tab are desired, ultrasonically scoring the blank to form a plurality of flap score lines, and cutting the blank through the plurality of pre-sealed flap slots and glue tab, leaving a sealed edge.

The invention relates to a clamshell packaging for airtight packaging of foodstuff, which packaging comprises: —a tray folded out of a single sheet of material, preferably cardboard, which tray has at least two adjacent pool parts, each pool part having a bottom wall and upstanding walls arranged around the circumferential edge of the bottom wall, wherein the at least two adjacent pool parts are hingedly connected to each other along an upper edge of a respective upstanding wall, such that the at least two adjacent pool parts can be hinged on top of each other to form a closed box, —a circumferential, horizontal flange arranged to the tray to at least some of the upper edges of the upstanding walls, and —a plastic barrier foil arranged in the pool parts and extending onto and substantially covering the circumferential, horizontal flange wherein the circumferential, horizontal flange comprises a seal zone extending along the full length of the flange, wherein the seal zone is line symmetrical along the hinge line at the upper edge of the connected walls.

The invention relates to a clamshell packaging for airtight packaging of foodstuff, which packaging comprises: —a tray folded out of a single sheet of material, preferably cardboard, which tray has at least two adjacent pool parts, each pool part having a bottom wall and upstanding walls arranged around the circumferential edge of the bottom wall, wherein the at least two adjacent pool parts are hingedly connected to each other along an upper edge of a respective upstanding wall, such that the at least two adjacent pool parts can be hinged on top of each other to form a closed box, —a circumferential, horizontal flange arranged to the tray to at least some of the upper edges of the upstanding walls, and —a plastic barrier foil arranged in the pool parts and extending onto and substantially covering the circumferential, horizontal flange wherein the circumferential, horizontal flange comprises a seal zone extending along the full length of the flange, wherein the seal zone is line symmetrical along the hinge line at the upper edge of the connected walls.

The present invention refers to a container precursor, comprising a composite sheet which comprises a) an outer polymer layer, b) a colour application, c) a carrier layer, and d) a barrier layer;
wherein a wall of the container precursor comprises a first wall region and a second wall region. The invention further refers to a closed container, obtainable from the container precursor; and to a closed container having the above composite sheet, the first and the second wall region.