In an embodiment, the invention comprises a container comprising: a base; at least one sidewall extending upwardly from the base and terminating in a top edge, wherein the at least one sidewall is paper-based; a removable flexible membrane adhered to the top edge, wherein the membrane comprises a one-way valve; a liner ply at least partially adhered to an interior surface of the sidewall, wherein the liner ply is configured to at least partially release from the sidewall upon a pressure differential between the pressure within the container and the external pressure.

A packaging container (1, 201) comprising a container body (2, 202) having a bottom end (4, 204) and a top end (5, 205) and a tubular container wall (3, 203) extending between the bottom end and the top end. The packaging container(1, 201) is closed at the bottom end (4, 204) by a base disc (9, 209) which is attached by welding to the inner surface (7, 207) of the container body (2, 202) at the bottom end (4, 204) of the container body. The container body comprises a laminate body sheet material (12) comprising a carton layer (12a), a metallic foil layer (12b) and an inner thermoplastic polymeric layer (12c). A top end closure comprising an openable and reclosable lid (16, 216) is arranged at the top end of the packaging container (1). The top end closure comprises an openable inner sealing member (33, 233) which is attached by welding to the inner surface (7, 207) of the container body (2, 202) at a distance from the top end (5, 205) of the container body (2, 202), the inner sealing member (33, 233) comprising a first laminate sealing member sheet material (244′) comprising a structural layer (244a) and a thermoplastic welding layer (244b) and a second laminate sealing member sheet material (244″) comprising a metallic foil layer (244a″) and a thermoplastic welding layer (244″b), the second laminate sealing member sheet material (244″) being joined to the first laminate sealing member sheet material (244′) by welding. The structural layer (244a) of the first laminate sealing member sheet material (244) is a metallic foil layer having a thickness of from 5 micrometer to 10 micrometer, such as from 5.5 micrometer to 9 micrometer.

Disclosed is a packaging container comprising a container body having a bottom end and a top end. The container body comprises a tubular container wall. The packaging container is closed at the bottom end by a base disc which is attached to the inner surface of the container body at the bottom end of the container body. The packaging container comprises a top end closure including a lid. The container body comprises a laminate body sheet material comprising a carton layer and a thermoplastic welding layer being arranged on an inner surface of the container body. The base disc comprises a laminate base sheet material comprising a carton layer and an inner thermoplastic welding layer being arranged on a surface of the base disc which is facing towards the interior of the container body.

A pack of cardboard with a base, a fixed lid and an encircling side wall, has a reclosable removal opening provided in the lid. The removal opening may be covered by a movably arranged cardboard layer. More than one cardboard layer may be provided for covering the removal opening.

A lid is capable of easily taking out contents from an opening portion thereof, while securing sealability of a container. The lid includes a top lid made of a paper-based material, the top lid including: an opening portion communicating between the inside and the outside of the top lid; a lid piece formed to be capable of opening or closing the opening portion; and a holding portion for holding the lid piece in a state where the opening portion is opened; and the lid includes a holding reception portion configured to hold the holding portion in a state where the opening portion is opened.

A composite container having a paperboard hollow body with top and bottom open ends. The body is formed by a sidewall with inner and outer surfaces. The composite container includes a body liner extending peripherally about the inner surface of the body and a base connectable to the bottom open end of the hollow body. The base includes a sidewall sized and shaped to fit snugly within the bottom open end of the body. The sidewall is permanently coupled to a bottom portion of the liner. The composite container also includes a collar connectable to the top open end of the hollow body. The collar has a peripheral portion that abuts the top open end and an inner circumferential flange sized and shaped to fit snugly within the top open end of the body. The inner circumferential flange is permanently coupled to a top portion of the liner. The peripheral portion has regions of weakened strength so that the section of the peripheral portion that abuts the top open end can be removed, thereby allowing a user to rapidly remove the coupled collar, liner and base from the hollow body.

A card-based package for sensitive food products, comprises a container portion defining an interior space with a base and a sidewall extending to an upper peripheral edge for receiving a removable seal for hermetically sealing the container portion prior to use. The package further comprises a lid structure, that can open and close to allow selective access to the interior space after removal of the seal. The container portion and the lid structure are both formed of card-based material and at least the container portion has light, oxygen, and water vapour barrier properties sufficient for storage of the product for a period exceeding 24 months.

A card-based package for powdered infant nutrition, comprises a container portion, the container portion defining an interior space for receiving the powdered infant nutrition and having a base and a sidewall extending to an upper peripheral edge for receiving a removable seal for hermetically sealing the container portion prior to use. The package further comprises a collar portion and a lid portion. The collar portion is connected to and extends upwardly from the upper peripheral edge of the container portion and comprises a connection segment and an upper peripheral closure rim surrounding an access opening giving access to the interior space. The lid portion comprises a lid and a frame and forms a re-closable joint with the upper peripheral closure rim of the collar portion, allowing repeated and selective opening and closing of the access opening. The container portion, the collar portion and the lid portion all comprise card-based material.

A novel closure for a container is provided. The closure comprises an overcap and a built in blade ring for making a circumferential cut in the container body so the top portion of the body can be removed to expose the container contents.

The invention relates to a method for manufacturing a covering structure for a cardboard package comprising a tubular body made up a cardboard material. The covering structure comprises a flat assembly of three materials: (1) a cellulosic material covered with a reactivatable barrier material over the face thereof oriented towards a safety membrane, making up a lid cardboard, (2) a laminating part arranged between said lid cardboard and the safety membrane, with a shape conjugated to the shape of the opening of the tubular body, made from paper, or paper whereof the face oriented towards said lid cardboard is coated with a material having barrier and sealing properties, and (3) a safety membrane, made up of a paper coated with at least one reactivatable barrier material on the surface thereof not oriented towards the laminating part.