FOOD PACKAGING BAG FOR MICROWAVE OVEN COOKING

PROBLEM TO BE SOLVED: To provide a food packaging bag in which all the food content and the seasoning permeate by heating a bag for microwave oven cooking in which the food content and the seasoning liquid are separated and stored, and to provide a method for manufacturing the bag in which the internal welding part can be welded under the same condition as welding of the outer periphery. SOLUTION: In the food packaging bag for the microwave oven cooking, leaving an opening part on one corner of a horizontal welding part of the outer periphery, the circumference is appropriately welded by vertical/horizontal welding parts, and a food material storing part and a seasoning liquid storing part are separated by a vertical direction weak welding part. On the inside of the horizontal welding part of the outer periphery in which the opening part exists, at least one internal horizontal welding part exists by leaving a duct width. The food material storing part and the seasoning liquid storing part are separated by the internal vertical welding part by placing an easily releasable ribbon laminated with an oriented polyamide between them. All the welding parts are welded under an appropriate pressure and at an appropriate temperature. A site which is on the food material storing part side of the internal horizontal welding part, overlaps with the easily releasable ribbon, and comes into contact with the internal vertical welding part is made to be a jetting hole forming part, and the length of the jetting hole forming part is 2 to 10 mm. COPYRIGHT: (C)2010,JPO&INPIT