BAG WITH PNEUMATIC POUCH, ITS MANUFACTURING METHOD, METHOD OF ENCLOSING GAS IN BAG WITH PNEUMATIC POUCH, AND METHOD OF PACKAGING BAG WITH PNEUMATIC POUCH

摘要

PPROBLEM TO BE SOLVED: To provide a bag 1 with pneumatic pouches composed of an inner bag 2 and an outer bag 3 and having the pneumatic pouches 14 and 15 formed between the inner and outer bags, which has a suitable structure for automating an entire packaging process including a step of enclosing gas in the pouch. PSOLUTION: The inner bag 2 has an opening at its upper rim. One of films 4 and 5 of the inner bag is sealed with one of films 6 and 7 of the outer bag at the upper rim (seals 8 and 9), and the inner bag and the outer bag are sealed together along both side rims and a lower rim (seals 11-13). Cuts 18 and 19 for blowing a gas are formed in the vicinity of upper corners of both films of the outer bag, and auxiliary seals 16 and 17 continuous to the seals 8 and 9 are formed. After air is blown through the cuts, the films are pinched by sub-grippers 51 and 52 to close passages 21 and 22, and the entire bag mouth including the cuts is sealed. PCOPYRIGHT: (C)2007,JPO&INPIT