DEAERATION SEAL BAG, PROCESSING SHEET FOR DEAERATION SEAL, AND DEAERATION SEALING METHOD

摘要

PROBLEM TO BE SOLVED: To surely deaerate from a bag and reduce its processing cost so as to manufacture at a low cost. SOLUTION: There is provided an opening 3 and other side edges 4 except the opening 3 are sealingly closed. There is provided a processing sheet 5 arranged inside a location where it is enclosed by the sealed side edges 4 and having some groove-like notches 5a at its surface. A flat area of the processing sheet 5 occupies more than 70% of the flat area in the bag.