METHOD AND APPARATUS FOR MANUFACTURING PACKAGING BAG

摘要

PROBLEM TO BE SOLVED: To provide a method for efficiently manufacturing a packaging bag equipped with a folding sheet functioning as an inner lid or the like and an on-off chuck. SOLUTION: This manufacturing method of the packaging bag has a sheet feeding process for supplying a long chuck 2' and a long folding sheet 3' to the gap between a pair of integrated or separate strip-like sheets 10a' and 10b' to longitudinally feed them, a first bonding process for bonding a pair of the side edge parts 31a of the long chuck 2' and the long folding sheet 3' to a pair of the strip-like sheets 10a' and 10b' in the sheet feeding process, a second bonding process for applying sealing to a plurality of the places in the longitudinal directions of a pair of the strip-like sheets 10a' and 10b' to form a plurality of cross seal parts 12b wherein the parts extending in the width direction of a pair of the strip-like sheets 10a' and 10b' are mutually bonded and a process for cutting the strip-like sheets along with the long chuck 2' and the long folding sheet 3' so as to manufacture a plurality of bag bodies from a pair of the strip-like sheets 10a' and 10b'. COPYRIGHT: (C)2005,JPO&NCIPI