Method of Making Form, Fill, and Seal Bags
AssigneeVoim Companies, Inc.
InventorsRobert Frei, Corbett Hefner, Friedrich Landershamer, Alan Mueller
Life of this patent
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AssigneeVoim Companies, Inc.
InventorsRobert Frei, Corbett Hefner, Friedrich Landershamer, Alan Mueller
Estimating the term…
A method is provided of making form fill and seal (FFS) bag formed at least in part from an open mesh material that includes filaments that intersect one another. At least some of the filaments are composite filaments having a carrier portion of a relatively high melting point and a bonding portion of a relatively low melting point, the bonding portion of each composite filament being thermally bonded to other filaments at points of intersection. The material may be a non-woven fabric that contains at least two layers of weft filaments that may be bordered on one or both sides by a layer of warp filaments. When compared to other open mesh materials, the open mesh material disclosed herein has a superior combination of some or all of high strength, light weight, high dimensional stability, and openness.
A method of forming an end seam on a bag comprising-pressing opposed sides of the bag together under heat and pressure at a temperature of less than 149° C. and a dwell time of less than 0.5 seconds and producing a seam having a seam strength of at least 2.5 N, the bag including at least two layers of a sheet material and at least one layer of an open mesh material.
A method comprising
Dependencies are inferred from the claim text.