| 摘要 |
A closure strip, or zipper, for plastic bags or the like, in which the zipper is to be applied to bag material to form zipper bags. A generally conventional zipper configuration is used, and the mounting flanges for mounting the zipper to the bag material are formed thinner than the body of the zipper to reduce the difference in thickness between the mounting flange and the bag material. Additionally, the inner edges of the inner mounting flanges are tapered so the mounting flanges merge gently into the bag material, allowing uniform welding of the side seam of the bag, the material flowing smoothly to prevent holes in the side welds of the completed bag.
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