Research and Development
Our engineering team is working with new technology & delivering most effective
tech solution for our client through the continues Research & development. With the
in-depth study & research.
FUNDAMENTALS OF PACKAGING WITH ULTRASONIC WELDING TECNOLOGY
Ultrasonic Heat-Seal
Sealing packages with ultrasonics utilizes a
vibrating tool rather than hot sealing bars.
The advantage: The ultrasonic vibration
forces product contamination out of the
sealing zone. In addition, the ultrasonic
generator can identify bags with
irregularities such as folds in the seal area.
For most filling operations, products that
are powdery, liquid or lumpy make it
virtually impossible to avoid contaminating
the seal area with product. When sealing
with a traditional heat-sealing system, this
contamination could result in leakers in
which either the seal fails in the autoclave
or micro channels appear in the seal area.
Bacteria or mold can then penetrate.
Sealing with ultrasonics creates reliable
seals even in the presence of
contamination in the seal area. The
ultrasonic vibrations force the product out
of the sealing zone while the thermal energy
required for the sealing process is
produced by molecular and boundary
surface friction at the interface of produces
a high-strength hermetic seal between the
polymer layers. When using an
Ultrasonics sealing solution, the number of
leaking packages transported to the
autoclave process can be reduced to
almost zero.
Structure Design Advantages
Ultrasonic sealing exhibits a high level of energy efficiency because energy is only needed during the actual
sealing process and power is only briefly delivered with typical cycle times being between 80 and 200ms.
Unlike traditional heat seal systems, ultrasonic systems are ready for use as soon as the ultrasonic
generator is switched on. Setup and changeover times are optimized because the typical temperature ramp
up and cooling cycles do not apply. A number of different parameters sets for each product type can be
stored as programs in the ultrasonic generator’s memory. Automatic recipe “on the fly” switch-over is
therefore possible and takes effect the next time the sealing process is initiated – no machine downtime or
cycle stop is necessary.
Ultrasonic sealing systems require a higher initial capital investment compared to heat sealing systems.
The key to a short ROI when investing in ultrasonics is the overall reduction in the number of seal leakers,
which will result in increased product throughput and decreased
PLASTICS FOR PACKAGING MATERIALS & SELECTION
