VACUUM PACKING METHOD AND APPARATUS FOR PRACTICING THE SAME

摘要

According to a vacuum packing method for packing contents in a reduced pressure, comprising steps of: after filling the contents into a packing bag, sealing a mouth portion of the packing bag in such a manner as to leave an elongated non-linear communication passage between an inner region of the bag in which the contents are filled and an outside of the bag so as to form an intermediate packed article; subjecting the intermediate packed article to pressure reduction for degassing the inner region in the intermediate packed article; and after the pressure reduction and degassing step, restoring an atmosphere around the packed article to the atmospheric pressure so as to close the communication passage, the vacuum packed state of the article can be maintained in the atmospheric air without sealing the bag member as by welding after the pressurereduction or evacuation is effected.