METHOD AND APPARATUS FOR CLEANING INTERENGAGING STRETCH ROLLERS
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United States of America Patent
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Issued Date -
Aug 15, 2013
app pub date -
Aug 14, 2012
filing date -
Aug 17, 2011
priority date (Note) -
Abandoned
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Abstract
To clean a pair of counterrotating stretch rollers having surface formations that interengage and that stretch a laminate web transversely to a travel direction in which the web passes between the interengaging rollers gas streams carrying dry-ice particles are directed at surfaces of the counterrotating rollers such that the particles free contaminants from surfaces of the rollers. The freed contaminants and dry-ice particles are aspirated from immediately adjacent each of the rollers while the rollers are rotating and, in fact while the production operation of the web is taking place.
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