Method of producing overwrap material, and a pack furnished with the material produced
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United States of America Patent
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N/A
Issued Date -
Oct 4, 2007
app pub date -
Mar 29, 2007
filing date -
Mar 29, 2006
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
Transparent outer wrappers for cigarette packets are prepared by advancing a continuous strip of overwrap material along a given feed path in a given direction, piercing a predetermined area of the strip with a series of slits spaced apart one from another and extending nominally transverse to the feed direction, and bonding a narrow ribbon to the strip along the predetermined area, aligned on at least one portion of the slits; the strip then passes under a blade shaped so as to cut a series of 'U' notches spaced apart one from the next, each creating a pull tab at the end of the ribbon, before being divided ultimately into leaves by a pair of contrarotating cutter rollers equipped with respective blades. Each single leaf serves as a wrapper for a relative pack, fashioned so that when torn open by pulling the ribbon, the ribbon encounters the slit and initiates two break lines extending away from the ribbon on either side to facilitate the removal of the wrapper in its entirety.
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