A paper container includes a body front panel (5), a body left side panel (6), a body right side panel (8), and a body back panel (7), which are contiguous through body vertical folding lines (1), (2), (3), and (4). A vertical direction sealing panel (25) is configured to form a quadrangular tubular body (26). The body vertical folding line (1) and the body vertical folding line (2) are approximately symmetrical bent lines bent toward a center of the body front panel (5), and the body vertical folding line (3) through which the body back panel and the body left side panel are contiguous with each other and the body vertical folding line (4) through which the body back panel and the body right side panel are contiguous with each other are approximately symmetrical bent lines bent toward a center of the body back panel.

A paper container includes a body front panel (5), a body left side panel (6), a body right side panel (8), and a body back panel (7), which are contiguous through body vertical folding lines (1), (2), (3), and (4). A vertical direction sealing panel (25) is configured to form a quadrangular tubular body (26). The body vertical folding line (1) and the body vertical folding line (2) are approximately symmetrical bent lines bent toward a center of the body front panel (5), and the body vertical folding line (3) through which the body back panel and the body left side panel are contiguous with each other and the body vertical folding line (4) through which the body back panel and the body right side panel are contiguous with each other are approximately symmetrical bent lines bent toward a center of the body back panel.

A leak resistant tray and a method of forming the tray from a blank. The blank comprises a bottom panel, first and second side panels, and first and second end portions connected to peripheral edges of the bottom panel. Each end portion includes inner end panel structure having a lower end panel and an upper end panel. Each end portion further includes first and second intermediate panels connected to the first and second side panels, first and second outer end panels connected to respective first and second intermediate panels, and first and second triangular gusset panels, each gusset panel connected between one of the intermediate panels and the lower end panel. First and second gusset trough panels are connected to a respective one of the gusset panels and to a lower edge of one of the outer end panels.

A leak resistant tray and a method of forming the tray from a blank. The blank comprises a bottom panel, first and second side panels, and first and second end portions connected to peripheral edges of the bottom panel. Each end portion includes inner end panel structure having a lower end panel and an upper end panel. Each end portion further includes first and second intermediate panels connected to the first and second side panels, first and second outer end panels connected to respective first and second intermediate panels, and first and second triangular gusset panels, each gusset panel connected between one of the intermediate panels and the lower end panel. First and second gusset trough panels are connected to a respective one of the gusset panels and to a lower edge of one of the outer end panels.

A refillable container includes: an inner container (5); an accommodation member (7) configured to accommodate the inner container; a lid member configured to close the accommodation member; a taking-out part (9) configured to take out the content contained in the inner container accommodated in the accommodation member; and an inner-container restraint part (59), which is provided between the lid member and the inner container, is configured to restrain the lid member and the inner container so as to prevent the inner container from falling from an opening portion of the lid member, when the lid member is removed from the accommodation member. Also, the inner-container restraint part is configured to release the restraint between the lid member and the inner container when the inner container in which the content has been exhausted is pulled from the opening portion of the lid member in a pull-out direction.

A refillable container includes: an inner container (5); an accommodation member (7) configured to accommodate the inner container; a lid member configured to close the accommodation member; a taking-out part (9) configured to take out the content contained in the inner container accommodated in the accommodation member; and an inner-container restraint part (59), which is provided between the lid member and the inner container, is configured to restrain the lid member and the inner container so as to prevent the inner container from falling from an opening portion of the lid member, when the lid member is removed from the accommodation member. Also, the inner-container restraint part is configured to release the restraint between the lid member and the inner container when the inner container in which the content has been exhausted is pulled from the opening portion of the lid member in a pull-out direction.

A system and a method for a cup for retaining a liquid. The cup includes a base and a wall. The base and the wall define a container with a space to retain the liquid. A first closure flap and a second closure flap are attached to the wall and extend from the wall. The first closure flap and the second closure flap are foldable relative to the wall. The first closure flap and the second closure flap are foldable between an open position and a closed position. The first closure flap and the second closure flap define a lid when in the closed position. The lid is defined by the first closure flap being folded at least twice to a closed position and the second closure flap being folded at least once to a closed position.

A system and a method for a cup for retaining a liquid. The cup includes a base and a wall. The base and the wall define a container with a space to retain the liquid. A first closure flap and a second closure flap are attached to the wall and extend from the wall. The first closure flap and the second closure flap are foldable relative to the wall. The first closure flap and the second closure flap are foldable between an open position and a closed position. The first closure flap and the second closure flap define a lid when in the closed position. The lid is defined by the first closure flap being folded at least twice to a closed position and the second closure flap being folded at least once to a closed position.

Provided is a package made of a composite material is represented and described, including a package base with two front base corners and with two rear base corners, a package gable with two front gable corners and with two rear gable corners, and a package base body with a front panel, a first side panel, a second side panel and a rear panel. The package base and the package gable are arranged on opposite sides of the package base body. The composite material has a polymer inner layer, a polymer outer layer and a fibrous support layer, which is arranged between the polymer outer layer and the polymer inner layer. In order to enable the manufacture of packages with even more complex geometries without impairing the rigidity of the package, it is proposed to provide a third sleeve fold line, which has a plurality of sections, which each adjoin a side panel and the rear panel, and of which at least one section is curved.

A flat-shaped composite material is represented and described for manufacturing a package, including: a polymer outer layer, a polymer inner layer, a fibrous support layer, which is arranged between the polymer outer layer and the polymer inner layer. The flat-shaped composite material has a plurality of fold lines, which are arranged and designed such that a closed package can be manufactured by folding the flat-shaped composite material along the fold lines and by connecting seam surfaces of the flat-shaped composite material and a sleeve surface. The sleeve surface includes a front surface, a first side surface, a second side surface, a first rear surface and a second rear surface, and base surfaces. The base surfaces include triangular base surfaces, quadrangular base surfaces, and gable surfaces. The gable surfaces include triangular gable surfaces and quadrangular gable surfaces. The base surfaces and the gable surfaces are arranged on opposite sides of the sleeve surface. In order to enable the manufacture of packages with even more complex geometries without impairing the rigidity of the package, it is proposed that the sleeve surface has at least one stress-relief surface, which is arranged between the front surface and one of the two side surfaces. A package sleeve made of a composite material and a package manufactured from the composite material or from the package sleeve are also represented and described.