#Industry News
Circular economy
Ultrasonic sealing is suitable for recyclable material
Monomaterials such as monolayer films and new composites such as OPP / PP (oriented polypropylene / polypropylene) tend to be less resistant than conventional packaging materials. The temperature differences between carrier and sealing layer are lower and thus the process window becomes smaller during sealing. The ultrasonic technology can provide good sealing results with monomaterials, even with narrow process limits, especially in terms of tightness and appearance. Other technologies have limitations and can cause material shrinkage, thermal expansion or sticking of packaging material to sealing tools.
