Abstract: The present disclosure provides a method of forming a paperboard packaging container comprising a tubular paperboard container body, a container bottom and a container lid. The container body comprises a container body abutment edge at the container opening. The container body has an inner surface facing towards an inner compartment in the packaging container and an outer surface facing away from the inner compartment. The container lid comprises a lid collar having an abutment edge adapted for abutting against the container body abutment edge, and a lid plug-in portion. The plug-in portion has a side surface extending in the longitudinal direction and faces the inner surface of the container body, when the container lid is in a closed position. The lid collar is made of the same material as the container body and the lid collar is delimited from the container body by a slit or by weaking means.

Abstract: A sealing disc for sealing an inner compartment in a packaging container includes a first surface and a second surface. The sealing disc is delimited by a sealing disc outer edge. Additionally, the sealing disc includes a peripheral edge portion surrounding at least two fully or partly removable tear-open parts. Each fully or partly removable tear-open part is arranged to be fully or partly separated from the peripheral edge portion along a contour line.

Abstract: The present disclosure relates to a method of forming a paperboard packaging container from a rectangular body blank, the method comprising the steps of providing a rectangular body blank having a first end edge and a second side edge, forming a tubular container body from the rectangular body blank, sealing together the first and the second side edge of the body blank, closing the first end opening by pressing a paperboard disc into the first end opening, pressing the first end of the tubular container body into a curl forming portion of a curling tool, filling the packaging container with bulk solids, and closing the second end opening.

Abstract: The present disclosure relates to a composite paperboard container for bulk solids. The composite container comprises a rim surrounding one of the container top opening and the container bottom opening. The rim is attached with a first connecting portion of the rim to an end portion of the tubular body. The rim is a molded rim comprising pulp fiber. The rim is connected to the tubular body by at least one adhesive layer, the at least one adhesive layer comprises or consists of thermoplastic adhesive in an amount of from 0.1 mg per 10 mm of the container opening perimeter at the end portion of the tubular body. The present disclosure furthermore relates to a method of producing a composite paperboard container.

Abstract: A radially expansible press plunger including a base plate and a first plunger skirt. A circumferential edge portion of the first plunger skirt is arranged at a guiding surface of the base plate and being arranged radially inward of the circumferential edge of the bottom surface. The first plunger skirt is resiliently transformable between an unexpanded state and a radially expanded state. The expansible press plunger further comprises a second plunger skirt having a plunger skirt side wall with a circumferential edge portion at a bottom end of the second plunger skirt and being arranged radially outward of the circumferential edge portion of the first plunger skirt. The second plunger skirt is resiliently transformable between an unexpanded state and a radially expanded state under influence from the circumferential edge portion of the first plunger skirt.

Abstract: The present disclosure provides a paperboard packaging container comprising a tubular paperboard container body, a container bottom and a container lid. The container body comprises a container body abutment edge at the container opening. The container body has an inner surface facing towards an inner compartment in the packaging container and an outer surface facing away from the inner compartment. The container lid comprises a lid collar having an abutment edge adapted for abutting against the container body abutment edge, and a lid plug-in portion. The plug-in portion has a side surface extending in the longitudinal direction and faces the inner surface of the container body, when the container lid is in a closed position. The lid collar is made of the same material as the container body and the lid collar is delimited from the container body by a slit or by weakening means.

Abstract: The present disclosure relates to a method of forming a paperboard packaging container from a rectangular body blank, the method comprising the steps of providing a rectangular body blank having a first end edge and a second side edge, forming a tubular container body from the rectangular body blank, sealing together the first and the second side edge of the body blank, closing the first end opening by pressing a paperboard disc into the first end opening, pressing the first end of the tubular container body into a curl forming portion of a curling tool, filling the packaging container with bulk solids, and closing the second end opening.

Abstract: The present disclosure relates to methods of producing a packaging container for bulk solids. The packaging container has an inner compartment and a transport closure closing the inner compartment, the transport closure being provided with a pressure relief valve, the method includes the steps of forming a tubular container body having an upper body opening; presenting the container body to an upper body opening sealing station comprising a plunger piston comprising a bottom plate, the bottom plate having a through hole; closing the upper body opening by pressing the transport closure into the upper body opening such that a pressure above an ambient pressure is produced within the tubular container body, allowing gas to exit the valve and the valve to be pre-conditioned; and attaching the transport closure to the container body wall.

Abstract: The present disclosure pertains to a laminate membrane for sealing an inner compartment in a packaging container comprising a top member and a bottom member. The top and bottom members are laminated sheet materials. The top member has a thickness, a top member first surface and a top member second surface facing the bottom member. The bottom member has a bottom member first surface facing the top member second surface and a bottom member second surface. The laminate membrane is provided with a valve for allowing gas in the inner compartment of the packaging container to exit therefrom. The valve has a valve outer edge and is arranged on the bottom member first surface. The valve is arranged within an opening in the top member such that an opening edge encircles the valve. A surface area of the opening is greater than a surface area of the valve.

Abstract: A composite container comprises a tubular body, the tubular body having an inside surface and an outside surface and a container opening at a top end of the tubular body. The composite container comprises a top rim surrounding the container opening, the top rim being attached to a top end portion of the tubular body at the top end of the tubular body, and a lid for opening and closing the composite container. The composite container comprises a separation arrangement, for separating the top end portion of the tubular body together with the attached top rim from a main part of the tubular body, the separation arrangement comprising a tear strip formed between a pair of inside score lines which are arranged from the inside surface of the tubular body.

Abstract: A method of forming a paperboard packaging container from a rectangular body blank is disclosed, the method including the following steps: a) providing a rectangular body blank made from a laminate sheet material; b) forming a tubular container body from the rectangular body blank, the container body having a first end with a first body opening and a second end with a second body opening; c) sealing together the first and the second side edge in a but-to-but seal using a sealing strip having a sealing strip width; d) presenting the tubular container body to a crease line forming station; e) closing the second body opening by pressing a paperboard disc into the second body opening; f) forming a curled second edge by folding or rolling the second end of the container body wall inwardly; g) filling the packaging container with bulk solids; and h) closing the first body opening.