| 摘要 |
PROBLEM TO BE SOLVED: To provide a zipper tape providing both of contradicting high-sealing property and easy opening property and easy for manufacturing.SOLUTION: A thin wall part 22A1 is provided at a female-side belt-like base 22A to which a female-side hook part 22C is consecutively provided, in a storage space 14 side in the width direction at a base end of the female-side hook part 22C. When an internal pressure increases, a pressure acts on a base end of a second engagement part 24 to cut off the thin wall part 22A1. The female-side belt-like base 22A of which opening part 12 alone in the width direction is attached, so as to be a so-called one-side detached state providing the high sealing property and easy opening property. Even a normal attachment method of using a simple-structured zipper tape 20 with the thin wall part 22A1, for attaching width-directional both ends of a pair of belt-like base parts 21A and 22A to a bag body 10, can provide the high sealing property and easy opening property and facilitate the manufacture.SELECTED DRAWING: Figure 4 |
