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US 6,601,370 B2Granted
Reclosable package using straight tear film and process for manufacture
AssigneeHoneywell International Inc.
InventorsFrank J. Colombo, Jeffrey D. Moulton
Life of this patent
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Abstract
A reclosable film package for storage of solid or liquid food products using a straight-tear film package having a zipper. The straight-tear films allow for tearing of the film along straight lines without perforating or laser scoring of the film allowing optimal integrity of the package and product.
Claims14
A process for forming a reclosable film package comprising:
- a) forming first and second straight-tear films by attaching a nylon or polyester layer to a sealant layer optionally via an intermediate adhesive layer, said films having top, bottom, left and right edges;
- b) forming first and second zipper tracks below and parallel to the top edge of the films, said tracks having left and right end points and said tracks releasably engaging each other;
- c) attaching a moveable slider to the tracks such that the slider is capable of engaging and disengaging the tracks between left and right end points;
- d) adjoining the first and second straight-tear films by sealing the respective left, right and bottom edge of each film together such that the sealant layers are attached together, and forming left, right and bottom margins, thereby forming an enclosure;
- and
- e) forming a left nodule at an intersection of a left zipper end point and the left margin, and forming a right nodule at an intersection of a right zipper end point with the right margin.
3 more elements
Dependencies are inferred from the claim text.