Labelling machine with ultrasound welding device for making a tubular label made of heat-shrinking film and welding process
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United States of America Patent
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Jan 19, 2010
Grant Date -
Aug 2, 2007
app pub date -
Feb 25, 2005
filing date -
Mar 9, 2004
priority date (Note) -
Expired
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Abstract
The invention refers to the field of labelling machines that use tubular labels, and in particular it refers to ultrasound welding apparata for making a tubular label made of a heat-shrinking film, precut from a coil.): the formation of one or more beads will have to be attributed to the more or less correct position of the precut label and the errors caused during its transfer. The presence of many beads is an improving condition of the resistance to tensile stress of the welded label.
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