Post-applied zipper base with grip strip

B - Operations – Transporting – 65 – D

Patent

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Details

B65D 33/24 (2006.01) A44B 19/16 (2006.01) B31B 1/90 (2006.01) B65D 33/25 (2006.01)

Patent

CA 2061481

A method and apparatus for producing an improved easy-open container wherein a continuous base layer is integrally extruded with means 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.

Cette invention concerne une méthode et un appareil de fabrication d'un conditionnement amélioré facile à ouvrir dont la couche de base continue est extrudée avec un moyen de préhension y intégré et appliquée sur une pellicule de manière à obturer les perforations de séparation y pratiquées. Des éléments de fermeture à pression et glissière sont extrudés en même temps et assemblés par fusion à la couche de base continue. Le nombre des filières nécessaire est ainsi réduit et la méthode permet de produire un conditionnement souple affichant les caractéristiques voulues d'étanchéité, de facilité d'ouverture et de préhensibilité.

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