From
Thomas Fischer -
Over the last years the stand-up-pouch (SUP) could gain significant market share in flexible packaging.
For many liquid, pasty and fibrous filling goods, but also for dry, powdery products the SUP is the ideal package style.
Increasing demands for higher output of SUP filling lines and thus reduced cycle times for dosing the product and sealing the top seam, required new strategies and technologies for safe production of tightly sealed top seams at the end of the packaging process.
It is recognized that ultrasonic sealing technology made a huge contribution to solving this challenge over the last 2 decades.
Out of the niche this sealing method became a standard solution for multiple applications within the packaging industry – the required heat to melt down the sealing layer is generated directly within the sealing layer by high frequent mechanical vibrations.
From SUP for beverages, sauerkraut to ready-to-eat-meals and wet pet food – the demand for robust and safe sealing despite of product residues being present in the seam area can be realized with ultrasonic.
For years hundreds of SUP filling and closing lines with thousands of ultrasonic sealing stations in multi-shift operations produce continuously the highest quality at low operation and maintenance costs.
Future film materials with no aluminum, partially based only on one type of polymer, will introduce challenges to the sealing technologies which can already be solved by ultrasonics as of today.
Robust sealing processes and lowest leaker ratios are the result of an intelligent digital ultrasonic generator in combination with durable sealing tools that grant repeatable sealing quality also under varying production conditions.
Extent: 41 pages
, Size: 8.08 mB, Language:
german