MICROWAVE HEATING AND COOKING PACKING MATERIAL AND FOODS PACKED WITH THIS PACKING MATERIAL

摘要

PROBLEM TO BE SOLVED: To prevent a sheet forming a thermal insulating layer and the like from being broken under an expansion of air during heating operation and enable the foods heated by a microwave oven to be safely held by a hand under a state in which the foods are being packed with a packing material. ;SOLUTION: An embossed sealant film 4 having some protrusions 5 arranged in a pattern is adhered to a substrate film 2, a protruded surface 6 of the protrusions 5 is adhered to the substrate film 2. There is provided a passage 8 continuing in a widening direction of the embossed sealant film 4 is arranged between the embossed sealant film 4 and the substrate film 2.;COPYRIGHT: (C)2000,JPO