Herrmann module welds zippers into pouches

Because the Zipper Seal Module generates heat only in the seam, the process is gentle on the material, allowing the use of mono-material films, which are easier to recycle.
Dec. 8, 2021

Zipper Seal Module Herrmann Ultraschalltechnik’s Zipper Seal Module (ZSM) continuously welds the zippers into plastic stand-up pouches and bags using ultrasonic technology. The plastic passes between two facing sonotrodes, which heat and fuse the material. The modular system incorporates an Ultrapack generator, which is specifically designed for high-speed packaging applications and enables reproducible control of the welding process.  

What’s new? The system, which offers processing speeds of up to 115 feet per minute. 

Benefits Fast, secure and gentle welding of zippers into resealable bags and pouches. Mono-material films can be difficult to work with, resulting in seams that are shrunken or deformed. Because the ZSM generates heat only in the seam, the process is gentle on the packaging material, allowing the use of mono-material films, which are easier to recycle than multi-material products. Additionally, no material adheres to the sonotrodes during welding, reducing the need for cleaning.  

Herrmann Ultrasonics, Bartlett, Ill., 630-626-1626, www.herrmannultrasonics.com 

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