PACKAGING BAG, FILLED BODY AND METHOD FOR MANUFACTURING FILLED BODY

摘要

PROBLEM TO BE SOLVED: To provide a packaging body which is a packaging bag to be filled up with a large quantity of contents and can avoid poor sealing of a corner part.

SOLUTION: In the packaging bag, belt-shaped vertical seals and a belt-shaped first lateral seals are formed on heat-sealing surfaces of heat-sealable films facing each other, and second lateral seals wherein corner seal parts crossing the vertical seals and the lateral seals are connected with belt-shaped parts are formed on the first lateral seals and a part of the vertical seals. Thus, poor sealing which may be generated on corner parts of the packaging bag for filling up a large quantity of contents can be effectively avoided by the corner seal parts.

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