Abstract: A packaging carton for wet food such as meat and fish is made of a triple ply lamination, the top and bottom plies being plastic sheet, the intermediate ply being of carton material such as paperboard but in variants the ply is made of fluted board, honeycomb matrix or side by side thin walled tubes. The intermediate ply is cruciform allowing the corners to be rectangular areas of plastic plies joined together. These form, diagonal fold flaps which are adhered to the cruciform blank to form a fold flat carton precursor. A lid is constructed in the same manner and overlies the carton to form a container which withstands tape wrapping.

Abstract: A synthetic board is made from a plastic film ply 4, 6 adhered or welded to a parallel array of thin-walled plastic tubes 2. In some versions, the tubes are spaced from each other. In others the tubes are contiguous. This allows the board to curl up more or less depending on the tube packing about the tubes axes but to resist bowing between the ends of the tubes. The board is useful for packaging, display, cladding and insulation. In some versions, a second parallel array 7 lies at 90° to the first and the board is free to fold about the boundary between the two arrays. In this way, runs of cruciform carton blanks can be manufactured. The tubes can contain particulate or gel filling.

Abstract: A packaging carton for wet food such as meat and fish is made of a triple ply lamination, the top and bottom plies being plastic sheet, the intermediate ply being of carton material such as paperboard but in variants the ply is made of fluted board, honeycomb matrix or side by side thin walled tubes. The intermediate ply is cruciform allowing the corners to be rectangular areas of plastic plies joined together. These form, diagonal fold flaps which are adhered to the cruciform blank to form a fold flat carton precursor. A lid is constructed in the same manner and overlies the carton to form a container which withstands tape wrapping.