IMPROVED FOOD PACKAGING SHEET FOR USE IN MICROWAVE OVENS

摘要

A composite or laminate film or sheet of plastics material for use in microwave ovens comprises at least three layers of plastics material bonded and/or adhered together and with the central layer being of unoriented plastics material or of less oriented material relative to the orientation of the plastics material(s) of the outer layers, and/or being of lower melting point materials than the outer layers.