发明名称 Method and apparatus for sealing reclosable flexible containers without spot sealing.
摘要 An apparatus and method for manufacturing reclosable thermoplastic containers which eliminates the need for spot-sealing zipper closures (24,26) or zipper closure elements (24,26) to a web of thermoplastic film (22) prior to forming side seals (62) and zipper end seals (64) is provided. Opposing seal jaws (10,12) provide increased heat and pressure to zipper closures (24,26) in a manner which results in improved hermetic and fluid-tight side seals (62) and zipper end seals (64). <IMAGE>
申请公布号 EP0445370(A1) 申请公布日期 1991.09.11
申请号 EP19900122039 申请日期 1990.11.17
申请人 ZIP-PAK INC. 发明人 BOECKMANN, HUGO;VAN ERDEN, DON L.;BAUER, MARK D.
分类号 B29C65/00;B29C65/18 主分类号 B29C65/00
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