PACKAGING BAG WITH STEAM DISCHARGING HOLE

摘要

PROBLEM TO BE SOLVED: To provide a safe and sure packaging bag with a steam discharging hole for a instant foodstuff such as curry to be taken only by heating wherein contents can be prevented from boiling over even if the bag is heated in a microwave oven. SOLUTION: The packaging bag is formed of a composite film including a sealant layer as an innermost layer wherein an inner face periphery of the film is sealed. An approximately circular strip seal 42 is formed on the sealant layer 10b face on an upper opening of the bag and outside the vicinity of a steam discharging hole 40 of the sealing layer 52 surface of a steam discharging hole sheet 50 which comprises at least two layers of an easy-to-peel sealing layer 54 as a surface and the sealing layer 52 as a rear face and also which is equipped with the steam discharging hole 40 bored. The packaging bag 1 with a steam discharging hole is folded at a center line 1 so that the easy-to-peel sealing layers 54 are in tight contact, and side rims and an upper rim are sealed.