A folding aid with registers is aligned with notches in a specially designed carton blank to facilitate the efficient manual construction of cartons with gusseted corners.

A thermal insulation article includes a thermally insulating pad shaped to be positioned in a cavity of a rectangular prism shipping container. The pad includes a solid compostable panel formed primarily of starch and/or plant fiber pulp that holds together as a single unit, and a water-proof or water-resistant film forming a pocket enclosing the panel. The panel includes a first section, a second section, and a third section connecting the first section to the second section, the first and second section each having a central portion and two flaps that extend from the central portion beyond the third section, and wherein the panel is foldable into an open box.

The present invention relates to a packaging system, which creates a packaging consisting of a rectangular or square tray, watertight perimeter flaps and two covers. It comprises a folding station consisting of a frame with a central gap corresponding to the dimensions of the tray; a skid at each corner of the frame, protruding from the top.

In turn, the plate comprises a flap on each edge of the tray, joined together by corners comprising diagonal, radial notches, two covers on two flaps facing each other, each with a pair of insertion tabs for inserting between the flaps.