| 摘要 |
A zipper (10) for use in the production of reclosable plastic bags of the type having zippers (10) extending across their top ends, has a first profile member (16) and a second profile member (18) that is interengageable with the first profile member (16). At bag length intervals of the zipper, notches (24) are formed by removing at least a portion of the first and second profile members (16,18). A mould (30) is positioned about each of the notches (24) and a molten thermoplastic material is introduced into the mould cavity filling the notch (24) and extending beyond the notch and over the zipper (10) so that when the molten thermoplastic material is cooled an end stop (34) is formed in situ at each of said notches (24). <IMAGE> |
