date:Jun 03, 2014
Hermetically tight joints reduce the leaker rate and make the industry take notice. Moreover, narrow seams and less rework save packaging material while cold tools are gentle on sensitive feed material. A closer look at an alternative for heat sealing.
While 90 95 % of all sealing is still done with heat, an alternative technology has emerged: ultrasonic sealing. Ultrasonic vibrations melt the packaging material from the inside out (versus from the outside in as in heat sealing) and bond the