Issue 05/2023

Fibres
FDY production was possible at a pilot scale with up
to 37 dtex and 24 filaments in the yarn, which results in
1,54 dtex/filament. The production was merely limited
by the current machine parameters, and the polymer
can most likely withstand even higher stresses while
spinning it, resulting in even finer yarns that are suitable
for technical applications.
COMPEO
Leading compounding technology
for heat- and shear-sensitive plastics
To further validate the usability of the spun yarns for
textile applications, the yarns were processed on different
knitting machines. In the knitting trials, the unwinding
properties and the general loop formation were comparable
with industrial yarns.
Fig. 5: Knitted PA 6.9 – DTY (left) and FDY (right)
Following on from the current evidence that PA 6.9 is
generally suitable, in the next months, the first algae-based
polymers will be produced and processed at ITA to create
an algae-based shoe demonstrator for the project. Next,
algae-based apparel and technical yarns are to be produced
to showcase the versatile suitability of biobased PA 6.9.
www.ita.rwth-aachen.de
By:
H. Löcken, M. Ortega, T. Gries
ITA Institut für Textiltechnik of RWTH Aachen University,
Aachen, Germany
Uniquely efficient. Incredibly versatile. Amazingly flexible.
With its new COMPEO Kneader series, BUSS continues
to offer continuous compounding solutions that set the
standard for heat- and shear-sensitive applications, in all
industries, including for biopolymers.
Acknowledgements
The authors want to thank the Federal Ministry
of Education and Research (BMBF) for funding
the innovation space BIOTEXFUTURE and
this research project.
• Moderate, uniform shear rates
• Extremely low temperature profile
• Efficient injection of liquid components
• Precise temperature control
• High filler loadings
www.busscorp.com
bioplastics MAGAZINE | Renewable Carbon Plastics [05/23] Vol. 18
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