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Tea bag sealing

working in progress 3


Viale de Gasperi, 76
20017 RHO (MI) Italia


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Ultrasonic technology is used in the sealing process of the tea bags we find in the global market. This technology allows for numerous benefits thanks to the materials with which these tea bags are made, PA-similar or non-woven fabrics.

The ultrasonic technology negates the use of glues, making the product eco-friendly, and guarantees many more work cycles than other welding technologies.

The machines for the ultrasonic sealing of tea bags have a production capacity between 300/900 units/minute.
The processes are cutting and searing,  i.e. by contact through movement of the vibrating unit and/or the seam welding process through an oscillating system on the horizontal axis.

The most commonly used frequencies are 30 and 35 kHz. Generally, 10 to 15 units are used per system.


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