PACKAGING BAG AND MANUFACTURING METHOD THEREFOR

摘要

PROBLEM TO BE SOLVED: To provcide a packaging bag easy to open an opening port by the hand compared with a conventional example and not anxious about appearance inferority or the like. SOLUTION: In a packaging bag having a housing part 27 therein by sealing the peripheral edges of two superposed sheets 25 and 26, perforation-like cutting lines 10 traversing the housing part 27 to one sheet 25 among two sheets 25 and 26 are formed in two rows and breaking lines 28 intermittently arranged wherein a large number of breaks 12 are intermittently arranged along the perforation-like cutting lines 10 are formed to the other sheet 26 at the position overlapped with the cutting lines 10 so as to become brakable in a predetermined width wider than the width of the cutting lines 10. The cutting lines 10 and the breaking lines 28 are formed to paper 1 and the polyethylene layer 2 just under the paper 1. COPYRIGHT: (C)2004,JPO