FOOD PACKAGING BAG

摘要

A food packaging bag comprising a water-resistant perforated sheet (3) composing a part of the outer layer of the bag, moisture permeable waterproof films (2) laminated by bonding in places as an inner layer of the perforated sheet to compose a moisture permeable waterproof part of the bag, a waterproof sheet (1) composing the remaining outer layer of the bag, and, when desired, a water absorbent layer provided on at least a part of the inner surface of the waterproof sheet, in which bag the function of moisture permeability of the moisture permeable waterproof film is scarcely impeded when food in the bag is heated and cooked and the moisture permeable waterproof film weak in strength is seldom broken by scraping during distribution or bursting during cooking with heat. Unsticky hot cooked food can be obtained through the processes that material food is packed in this bag; the bag is completely heat sealed at opening part, put into hot water or heated in the microwave oven for steam cooking; or the bag is sealed untightly, such as folding or label sticking at opening part, and put under heat-cooking in the microwave oven.