date:Jan 18, 2013
ic sealing are widely known. Instead of using thermal energy to form a seal, the technology uses high-frequency ultrasonic vibrations of the sonotrode to bond the two layers of film together at a molecular level. Even if moisture, a piece of leaf or a particle remain in the seal area, an air-tight seal is still possible. This makes automatic case packing possible without seal testing.
With conventional thermal sealing, these obstructions in the seal area prevent an air-tight seal being made. N