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 or zipper closure elements to a web of thermoplastic film prior to forming side seals and zipper end seals is provided. Opposing seal jaws provide increased heat and pressure to zipper closures in a manner which results in improved hermetic and fluid-tight side seals and zipper end seals. |
申请公布号 |
CA2029971(A1) |
申请公布日期 |
1991.09.10 |
申请号 |
CA19902029971 |
申请日期 |
1990.11.14 |
申请人 |
ZIP-PAK, INC. |
发明人 |
BOECKMANN, HUGO;VAN ERDEN, DONALD L.;BAUER, MARK D. |
分类号 |
B29C65/00;B29C65/18 |
主分类号 |
B29C65/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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