ITA-Formblatt-Vorlage deutsch - Institut für Textiltechnik - RWTH ...

Techtextil 2011 ITA booth hall 3.1 A33
Press Release 1
Contact Viola Siegl
Phone +49 (0) 241 80 234 21
Fax +49 (0) 241 80 224 22
Email viola.siegl@ita.rwth-aachen.de
Binder Activator
The binder application process is a key technology for the automation of the
preforming process and accordingly for the economic production of complex
textile-reinforced structural elements. To activate the binder on the textile an
effector for binder activation was developed at ITA and integrated into the
ITA-Preformcenter. During the binder activating process, heated and
compressed air flows through the textile and causes the binder to melt. A
spring back assembly compacts the preform during the process. Due to the
modular design, preforms with different geometries can be activated.
For further information please contact Josef Klingele
(Josef.klingele@ita.rwth-aachen.de)
Dielectric measurement method
At the Techtextil, the dielectric measurement method for analyzing the
weight distribution and the mixture quality of multi-component nonwovens
will be exhibited. The main advantage of this method is its ability to
distinguish between visually indistinguishable components such as glass
fibre and PP.
For further information please contact Tristan Tiedt (Tristan.tiedt@ita.rwth-
aachen.de)
Non-crimp fabrics with locally adapted stitch type
Multiaxial warp-knitted non-crimp fabrics (NCF) consist of non-crimped fibre-
layers, which are connected by warp-knitting yarns. The warp-knitting yarns
are introduced with different stitch types respectively knitting patterns. The
stitch type is predetermined by the scaling of the underlap of the guide bar,
which is driven mainly by pattern discs. A larger underlap, a lower tension
Institut für Textiltechnik
of RWTH Aachen University
Univ.-Prof. Dr.-Ing.
Dipl.-Wirt. Ing.
Thomas Gries
Otto-Blumenthal-Str. 1
52074 Aachen
Germany
Phone +49 (0) 241 80 234 00
Fax +49 (0) 241 80 224 22
www.ita.rwth-aachen.de
ita@ita.rwth-aachen.de

and a greater stitch length of the warp-knitting yarns increase the drapability
and complicate at the same time the handling of the material. In this case,
drapability is defined as the adaptation of laminar semi-finished material on
curved three-dimensional surfaces without structural folds. Aiming at a serial
production of preforms for the automotive industry a locally adjusted
formability will ease the required automated production processes. In order
to adjust the stitch type locally an electro-mechanical driven guide bar was
integrated into a warp-knitting machine with multiaxial weft insertion.
Furthermore the yarn run-in and therefore the yarn tension can be varied
from stitch course to stitch course with a computer controlled beam control.
Due to these technologies, non-crimp fabrics with locally adapted drapability
- from stitch course to stitch course - can be produced.
For further information please contact Andreas Schnabel
(andreas.schnabel@ita.rwth-aachen.de)
Nonwoven based 3D-shaped heart valve scaffold
Tissue engineered artificial heart valves are one opportunity to meet the
current deficit in organ donors. In addition they show great advantages in
comparison to artificial valves made of metal or plastic available on the
market. They are distinguished by a reduced risk of rejection and thrombus.
Furthermore, they are supposed to regenerate and to grow. Latter is
especially important regarding the therapy of infants as they may outgrow
the standard valves.
For further information please contact Annahit Arshi (annahit.arshi@ita.rwth-
aachen.de
Selective laser sintering
Selective laser sintering is a new innovative technology to create complex
plastic products directly from polymer powders. Currently the standard
thermoplastic powders for selective laser sintering are based on polyamide
12 precipitated from a solution. This leads to restrictions for many
applications and thus research on other polymers with enhanced and
product related properties plays a major role for applying selective laser
sintering to serial production of individual components.
In this demonstrator the attempt to produce polymer powders by the
conversion of man-made fibres is shown. Different methods of cutting semi-
crystalline filament yarns could be realized. This is the first step to use more
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materials within the laser sintering. The monopole of only polyamide 12 for
technical sinter products is therefore banned and new products out of
commodity polymers can be used.
For further information please contact Johannes Wulfhorst
(Johannes.wulfhorst@ita.rwth-aachen.de).
Smart lighting jacket
This sports jacket is functionalized with textile integrated lighting. A textile
based conductive system allocates electric power supply. Active lighting
components, like light-emitting diodes are placed into textile composite
structures. Various LEDs with different light intensities are used. A specific
conductive technology enables a reversible bonding between the
illuminating components and the textile material. Insulation is solved by the
use of a membrane. Functional and design lighting make the product
interesting for active sportswear. Thus safety aspects can be implemented,
for example the bicyclist can be seen in the dark. Furthermore functional
aspects can be realized by using individual parts for an additional light
source.
For further information please contact Ivana Cujic (ivana.cujic@ita.rwth-
aachen.de).
UMIC – Development of a wireless network for continuous
and mobile health monitoring
The UMIC research cluster was founded to develop a next generation
high-speed mobile communication network. As part of this cluster, suitable
application scenarios are explored and developed. Medical health care is
one of the key scenarios. The HealthNet Vision scenario, involves several
multi-disciplinary research institutes from textile technology, computer
science to medical engineering. The HealthNet Vision describes a near-
future patient-oriented network that connects the patients with medical
professionals. This kind of homecare scenario is necessary to keep overall
health care costs affordable and is therefore actively investigated by
research groups around the world.
Key feature is a wireless sensor network that obtains the patients vital
parameters (e.g. ECG, respiration rate, and temperature) via an energy-
aware, event-driven network. Additionally, peer-to-peer technology is used
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to ubiquitously distribute the information in a timely fashion to any
authorized medical professional independent from distance and location.
For further information please contact Till Quadflieg
(Till.Quadflieg@ita.rwth-achen.de).
We are looking forward to welcoming you to our booth A33 in hall 3.1
(Techtextil 2011, ITA, hall 3.1 A33).
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