A box is made by folding a sheet of material. Preferably, the box is formed by applying adhesive and folding using a machine, and a waterproof or water resistant coating is applied so that the box is configured for use as a cooler. The box includes (a) a storage portion, including a bottom panel, a first end panel, a second end panel, a first side panel, and a second side panel; (b) four corner panels; (c) a top panel including tabs; and (d) a latching panel attached to the first side panel and pivotable relative thereto about a fold line, the latching panel including first and second subpanels. The latching panel includes cuts extending between and dividing the first and second subpanels through which the tabs respectively extend when the cooler is in a closed position.

A case for beverage containers comprising a single continuous waterproof surface having walls and a floor and defining a container space, the container space being expandable by the movement of at least one of the walls so as to expand the container space.

A box is made by folding a sheet of material. Preferably, the box is formed by applying adhesive and folding using a machine, and a waterproof or water resistant coating is applied so that the box is configured for use as a cooler. The box includes (a) a storage portion, including a bottom panel, a first end panel, a second end panel, a first side panel, and a second side panel; (b) four corner panels; (c) a top panel including tabs; and (d) a latching panel attached to the first side panel and pivotable relative thereto about a fold line, the latching panel including first and second subpanels. The latching panel includes cuts extending between and dividing the first and second subpanels through which the tabs respectively extend when the cooler is in a closed position.

A one-piece blank for a cuboid folding box includes five main panel segments arranged in a row and separated from one another on transverse sides via main fold lines, a second secondary panel segment adjoining a second main panel segment on a longitudinal side, including an edge, and adjoining the second main panel segment via a second secondary fold line, and a third secondary panel segment adjoining a third main panel segment on a longitudinal side via a third secondary fold line. The secondary fold lines are perpendicular to the main fold lines, a first perforation line extends over the third main panel segment and at least partially over the third secondary panel segments. The third secondary panel segments are each divided by the first perforation line into a first region adjacent to the second secondary panel segment and a second region adjacent to the fourth secondary panel segment. Shapes of the second secondary panel segments and a course of the first perforation line are such that, in a folded state, the second secondary panel segments overhang the first perforation line in a region of the third secondary panel segments.

Provided is a folding packaging cooler box convertible from a box mode to an unfolding mode or vice versa, comprising: a box portion having a bottom portion, sidewall portions and joint portions configured to connect with one another and to form a single plane in the unfolding mode; and a cooling reinforcing portion configured to be inserted to the inside of the box and to form a hexahedron shape together with said box portion when said box portion is converted into the box mode, wherein said cooling reinforcing portion comprises a reinforcing bottom portion configured to form a lower surface and to face the bottom portion of the said box portion upon conversion into the box mode; reinforcing sidewall portions configured to connect with the said reinforcing bottom portion and to face the sidewall portions of said box portion; and reinforcing joint portions configured to join said reinforcing sidewall portions, to be folded to face itself and to be in close contact with the reinforcing sidewall portions, upon conversion into the box mode, and wherein said reinforcing bottom portion, said reinforcing sidewall portions and reinforcing joint portions form a single plane in the unfolding mode.

Provided is a folding packaging cooler box convertible from a box mode to an unfolding mode or vice versa, comprising: a box portion having a bottom portion, sidewall portions and joint portions configured to connect with one another and to form a single plane in the unfolding mode; and a cooling reinforcing portion configured to be inserted to the inside of the box and to form a hexahedron shape together with said box portion when said box portion is converted into the box mode, wherein said cooling reinforcing portion comprises a reinforcing bottom portion configured to form a lower surface and to face the bottom portion of the said box portion upon conversion into the box mode; reinforcing sidewall portions configured to connect with the said reinforcing bottom portion and to face the sidewall portions of said box portion; and reinforcing joint portions configured to join said reinforcing sidewall portions, to be folded to face itself and to be in close contact with the reinforcing sidewall portions, upon conversion into the box mode, and wherein said reinforcing bottom portion, said reinforcing sidewall portions and reinforcing joint portions form a single plane in the unfolding mode.

Provided is a packaging cooler box for delivery, comprising a bottom portion to form a lower surface upon conversion into a box mode, a plurality of sidewall portions configured to connect with the bottom portion, a lid portion configured to connect with one of the sidewall portions, and to face said bottom portion upon conversion into the box mode, a crease portion formed along the edge of the bottom portion so that the sidewall portions can stand upright, joint portions configured to join said sidewall portions, to be folded to face itself and to be in close contact with the sidewall portions, upon conversion into the box mode, and easy adhesive portions provided in said joint portions and sidewall portions to maintain the box shape upon conversion into the box mode from a single plane consisting of said bottom portion, sidewall portions, said lid portion and joint portions.

A self-sealing container is formed from a blank comprising panels and end flaps connected along fold lines with the panels and the end flaps being foldable along the fold lines to form the container. The container includes a securing feature that seals the container in a closed position, with the securing feature providing a visual indication of opening if the container is opened from the closed position. After the container is opened, the securing feature provides a closure feature that allows the container to be closed.

A self-sealing container is formed from a blank comprising panels and end flaps connected along fold lines with the panels and the end flaps being foldable along the fold lines to form the container. The container includes a securing feature that seals the container in a closed position, with the securing feature providing a visual indication of opening if the container is opened from the closed position. After the container is opened, the securing feature provides a closure feature that allows the container to be closed.

A self-sealing container is formed from a blank comprising panels and end flaps connected along fold lines with the panels and the end flaps being foldable along the fold lines to form the container. The container includes a securing feature that seals the container in a closed position, with the securing feature providing a visual indication of opening if the container is opened from the closed position. After the container is opened, the securing feature provides a closure feature that allows the container to be closed.