Abstract: A fold flat tray having an erect configuration and a fold flat configuration. The erect configuration comprises, a base (1), and first (2) and second (4) side walls and flanges (8, 9) extending outwardly from the top edges of the side walls. The fold flat configuration comprises the two opposing first sidewalls (2) being folded inwardly about their respective fold lines (3) adjacent to the base such that they lay flat against the base. Each of the two opposing second side walls (4) is provided with a straight fold line (10) extending from each corner, across the second side wall and its associated flange (9) in an oblique manner, such that each second side wall has a central portion between two straight fold lines, and two peripheral portions on opposite sides of the straight fold flat lines with respect to the central portion.

Abstract: The disclosure relates to a method of preparing a web of flexible material for production of receptacles for packaging. The method comprises the steps of feeding a web of flexible material past a succession of stations in which operations are carried out on the web including defining blanks for receptacles having walls and tabs by creating fold lines in the web, and then laminating a film of heat-sealable plastics materials to a face of the web of the flexible material. The film of heat-sealable plastics provides a heat-sealable surface on the web for bonding tabs of each blank together to form seams between adjacent walls whereby the blanks, when severed from the web, can be erected to form receptacles having openings to receive items to be packaged.

Abstract: The disclosure relates to a method of preparing a web of flexible material for production of receptacles for packaging. The method comprises the steps of feeding a web of flexible material past a succession of stations in which operations are carried out on the web including defining blanks for receptacles having walls and tabs by creating fold lines in the web, and then laminating a film of heat-sealable plastics materials to a face of the web of the flexible material. The film of heat-sealable plastics provides a heat-sealable surface on the web for bonding tabs of each blank together to form seams between adjacent walls whereby the blanks, when severed from the web, can be erected to form receptacles having openings to receive items to be packaged.