Packaging tray and method of manufacture

摘要

A packaging tray (2) comprises a base portion (6) of aluminium foil and a cover portion (12) overlying the base portion and sealed in contact with the base portion at a periphery thereof. The cover portion (12) comprises a plastics laminate having at least first (16) and second (18) layers. The first layer (16) is of a material having a lower melting point than a material of the second layer (18). The cover portion (12) is arranged with the first layer of the laminate in contact with, and adhered by heat-sealing to, the base portion (6). Apparatus for heat-sealing the cover portion (12) to the tray (2) is disclosed (Figs 2 and 3).