| 摘要 |
A method of folding a continuous web of a thermoplastic film material incorporating complementary interengagable profiled fastener elements, and aligning and interengaging the complementary fastener elements. Moreover, also provided is a device over which the web of thermoplastic film material is folded, with the device possessing structure for superimposing and aligning the fastener elements and interengaging the fastener elements which are adapted to be utilized in the production of reclosable plastic bags.
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