ジッパーテープのヒートシール方法、ジッパーテープ付フィルムロールの製造方法、及びジッパーテープ付包装袋の製造方法

摘要

A heat sealing method of a zipper tape (3) is for heat sealing the zipper tape (3) in a direction perpendicular to a feeding direction of a film (21). The heat sealing method includes: inserting the zipper tape (3) between the film (21) and a circumference of a roller (4) on which the film (21) is wound; and heat sealing the zipper tape (3) to the film (21) with a seal bar (5) following a rotation of the roller (4) in a continuous manner, while the zipper tape (3) is interposed between the circumference of the roller (4) and the film (21).