A foldable sealing container is provided with cuts, creases, adhesion of some elements, and a planar collapsed position to permit rapid reconfiguration to an expanded position. A plurality of catching mechanisms comprises friction tabs partially folded along friction tab creases to engage friction tab edges with side panels and hold the bottom side panels substantially perpendicular relative to the bottom panel. The plurality of catching mechanisms holds bottom side panels in a substantially upright position to form leak-proof seals at the lower corners. Engagement of the friction tab catching mechanisms provides enhanced leak resistance, improving storage and transportation of liquids and liquid-containing foods.

Provided is a reusable packing box, comprising a protective box body (1) enclosed by a bottom surface and a plurality of slanted side walls, and an elastic inflatable layer (3) adhered to an inner side of the protective box body, wherein the elastic inflatable layer (3) is provided with a vent (4), and the vent (4) is embedded in the protective box body (1). The reusable packing box can reuse a packaging material and a filling material, thereby reducing the phenomenon of waste, and improving the management efficiency.

A container includes a first portion, a second portion, and a locking panel. The first and second portion are pivotably coupled together. The first portion includes first sidewalls and the second portion includes second sidewalls. The first sidewalls of the first portion and the second sidewalls of the second portion abut when the container is in a closed configuration. The first and second sidewalls include interlocking tabs and slots that mate with each other when the container is in the closed configuration. The locking panel extends from the first portion and engages the second portion when the container is in the closed configuration, and the locking panel is configured to retain the container in the closed configuration.

Blanks for forming clamshell containers and the resulting clamshell containers are described. The clamshell containers include a tray and a lid that are hingedly connected together. The tray is liquid tight, and typically includes gussets on each corner to prevent leakage. The lid and tray can be locked via at least one locking mechanism, optionally two different locking mechanisms. A first locking mechanism involves a front panel on the tray, with an extension portion that terminates in a hook or tab. The extension portion can fold over the front panel of the lid, and the hook or tabs slide into a slit(s) on the top of the lid. An optional second locking mechanism involves lid detents and tray detents. In some embodiments, in the locked position, the lid detents are underneath the tray detents and the tray detents retain the lid detents in place until a force is applied.

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.

Dual-compartment food container is provided having an base portion including a base panel having first and second compartments defined therein and a cover portion including a cover panel joined by a common hinge portion. The cover portion is movable relative the base portion about the hinge portion from a substantially 180-degree open position to a closed position, wherein in the closed position, the cover portion is disposed over the first compartment with the second compartment extending beyond the cover portion. Each of the base portion and cover portion include at least one interlocking tab to releasably latch the base portion and cover portion. An engagement feature of the interlocking tabs can also provide a tactile indication to a user that the cover portion is secured in the closed position. A unitary blank for forming the dual-compartment food container from a sheet of blank material is also provided.

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 food receptacle having a tray with a base, a perimeter wall extending therefrom, and a tongue extending from the perimeter wall along a longitudinal axis and a cover adapted to cover the tray. Cover has an opening adapted to receive the tongue therethrough, such that the tongue is inserted through the opening when the tray is covered by the cover. Tongue may include a protrudable portion adapted to protrude away from the longitudinal axis. When protruded, the protrudable portion is adapted to abut the cover. When the tray is covered by the cover, the protrudable portion may be protruded over the top panel to prevent the tongue from being withdrawn from the opening.

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.