Production of zipper tape packaging bag manufacturing methods and zipper tape with packaging bags, and zipper tape with a packaging bag equipment

摘要

PROBLEM TO BE SOLVED: To provide a method for manufacturing a packaging bag with a zipper tape simple and excellent in productivity, and the packaging bag with the zipper tape.SOLUTION: A male side band-like portion 31 and a female side band-like portion 32 are connected by a bent portion 33. Consequently, even if the female side band-like portion 32 not bonded to a film 21 contacts a columnar member 42, it does not turn up. Engagement between the male side band-like portion 31 and the female side band-like portion 32 is not thereby released, providing a manufacturing method simple and excellent in productivity. Since the packaging bag with the zipper tape 3 bonded thereto is formed such that a distance between a base end part of a male side engaged portion and a female side thinnest wall portion is longer than a distance between a base end part of a male side engaged portion and a male side thinnest wall portion, when a bag body is torn, a break is formed on different levels.