To obtain a paper container, which allows an upper end portion of a body panel to be reliably dented at the time of unsealing of the paper container so as to be easily unsealed, on the body panel (7), a first auxiliary folding line (43) having a downwardly curved shape is formed to have end portions (41, 42) arranged so as to connect the reference points (40) to each other, or connect together positions that are near the reference points (40) on the body vertical folding lines (3, 4) or positions that are away from the body vertical folding lines (3, 4) and below the reference points (40) in a height direction of each of the body vertical folding lines.

Packaging may include a base box and a lid having a tamper-evident seal. The tamper-evident seal may include a paper substrate having a first adhesive portion configured to attach to a side panel of the base box, a second adhesive portion configured to attach to a second side panel of the lid. The first and second adhesive portions may be disposed on opposing sides of the paper substrate, and a tab configured to be accessible on an exterior of a package when the tamper-evident seal is applied may be a part of the paper substrate. When the tab is pulled with sufficient force, the paper substrate tears such that the first adhesive portion and the second adhesive portion remain fixed to the first and second side panels, respectively, while the remainder of the paper substrate tears free so that the packaging may be opened.

Packaging may include a base box and a lid having a tamper-evident seal. The tamper-evident seal may include a paper substrate having a first adhesive portion configured to attach to a side panel of the base box, a second adhesive portion configured to attach to a second side panel of the lid. The first and second adhesive portions may be disposed on opposing sides of the paper substrate, and a tab configured to be accessible on an exterior of a package when the tamper-evident seal is applied may be a part of the paper substrate. When the tab is pulled with sufficient force, the paper substrate tears such that the first adhesive portion and the second adhesive portion remain fixed to the first and second side panels, respectively, while the remainder of the paper substrate tears free so that the packaging may be opened.

In accordance with at least one aspect of this disclosure, a twisted package can be configured to be flat in a collapsed state having one or more fold lines that are straight. At least a portion of the twisted package can be twisted in the formed state such that the one or more fold lines are bent in the formed state and/or such that a body of the twisted package is twisted in a formed state. Any suitable structure to form a twisted package is contemplated herein.

A method of erecting a carton from a blank, including: engaging the blank with a punch head against which the carton is formed, folding side portions of the blank against the punch head to form sides of the carton; folding outer portions of the side portions of the blank away from the punch head and against an external side of the carton; folding end portions of the blank against the punch head to form end portions of the carton; folding outer portions of the end portions of the blank away from the punch head and against an external end of the carton; and securing corner gussets formed between the side and end portions against sides or ends of the carton.

In a box assembly device, a holding mechanism causes one of bottom boards to contact a first jig and folds the bottom board inside, while the holding mechanism holding the box material in a state where the box material is developed in a cylindrical shape from a folded state. The folding mechanism folds the bottom flap inside so as to overlap with one of the bottom boards. The holding mechanism causes the other bottom board to contact the second jig while holding the box material and folds the other bottom board inside and upwardly so as to overlap with the bottom flap to engage the bottom boards with each other.

A blank for forming a box for serving pizza includes panels defined and separated by manufactured lines that, when folded, define a box having a first footprint for enclosing within the box an entire pizza and that, when folded differently with panels having been removed, define a second box having a second footprint for enclosing leftovers of the entire pizza, the second footprint being smaller than the first footprint. The second footprint preferably is approximately one half of the area of the first footprint for accommodating no more than half of the entire pizza.

Various blanks are provided for forming sleeves, containers, and other constructs for heating, browning, and/or crisping of a food item in a microwave oven, and for holding and/or transporting the food item after heating. The various blanks, sleeves, containers, and other constructs may include a removable portion defined by one or more lines of disruption that enable the removable portion to be separated from the remainder of the blank, sleeve, container, or other construct.

Various blanks are provided for forming sleeves, containers, and other constructs for heating, browning, and/or crisping of a food item in a microwave oven, and for holding and/or transporting the food item after heating. The various blanks, sleeves, containers, and other constructs may include a removable portion defined by one or more lines of disruption that enable the removable portion to be separated from the remainder of the blank, sleeve, container, or other construct.

A corrugated cardboard blank for making a collapsible container including one or more panels joined to a bottom panel. The bottom panel is divided into first and second sectional panels on opposing sides of an interface comprising perforated portions extending from a first pair of diagonally opposing corners of the bottom panel. Each perforated portion includes an inner end, wherein the inner ends of the perforated portions are longitudinally spaced from each other. First and second fold lines extend diagonally at least partially between a second pair of diagonally opposing corners of the bottom panel and respective perforated portions. A frangible central portion of the interface extends between the inner ends of the perforated portions, wherein a plurality of unbroken flutes of the corrugated material extend laterally across the central portion of the interface.