Biaxially tensioning lidding web method and apparatus
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United States of America Patent
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Issued Date -
Dec 14, 2006
app pub date -
Aug 22, 2006
filing date -
Jan 2, 2002
priority date (Note) -
Abandoned
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Abstract
Packaging methods and apparatus for bonding a lidding web to a tray web, characterized in that the lidding web is placed under tension in both the longitudinal and lateral directions before being bonded to a tray web. A tray web having recesses and channels that form a conduit when the tray web is overwrapped with a lidding web is provided. A lidding web has microperforations to control the transfer of gases.
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