Procedure to fix a closed zipper-stripe inside a flexible container during its packaging
AssigneeIca S.P.A.
InventorGino Rapparini
Life of this patent
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Abstract
A process for applying a portion of a closed zipper inside a container of flexible material, in which a segment or portion of a closed zipper-strip is first applied by a fixing device upon the inner sides of a film of flexible material, prior to cutting of the zipper strip portion from the remainder of the zipper strip. The zipper portion is applied in such a position that it will not interfere with the subsequent sealing along transverse seal lines defining the opposite sides of the container.
Claims5
A process for applying a portion of a closed zipper inside a container of flexible material as it is being manufactured, comprising the steps of:
- feeding a closed zipper between opposing inner faces of flexible film material as the film material is being formed into a container having opposite transverse sealing zones on opposite sides of the container, the zipper extending in a direction transverse to the sides of the container;
- securing a length of the zipper to the inner faces of the flexible material in such a position that it does not interfere with the transverse sealing zones of the container;
- and
- after the zipper is secured to the inner face of the container, cutting the zipper into a portion of length less than the inner width of the container.
Dependencies are inferred from the claim text.