发明名称 POST-APPLIED ZIPPER BASE WITH GRIP STRIP
摘要 A method and apparatus for producing an improved easy-open container wherein a continuous base layer is integrally extruded with structure for gripping thereon and applied to existing film to seal perforated lines of tearing therein. Interlocking zipper elements are contemporaneously extruded and fused to the continuous base layer. Die clutter is reduced and the method produces a flexible container having desirable sealing, opening and gripping features.
申请公布号 CA2061481(A1) 申请公布日期 1992.09.05
申请号 CA19922061481 申请日期 1992.02.19
申请人 ILLINOIS TOOL WORKS INC. 发明人 WEEKS, RONALD J.
分类号 A44B19/16;B65D33/25;B65D65/28;(IPC1-7):B65D33/24;B31B1/90;B31B19/90 主分类号 A44B19/16
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