During manufacturing and preparation, tailor-made properties are given to the yarns and rovings to match the demands of the further processing. With ROVINGTEST, Textechno has developed the first commercial test system ever that measures all important properties in manufacturing, processing, and R&D of carbon- and glass fibre rovings in a single test system:

• Friction properties (fibre-to-fibre and fibre-to-solid surfaces)
• Spreading behaviour (how easily and how wide can a roving be spread; width regularity and occurrence of gaps before and after spreading)
• Detection of broken filaments (before and after spreading or frictional stress)
• Homogeneity of filament orientation in the roving measured by eddy currents (carbon fibre only). The sensor detects to which extent filaments are not perfectly oriented.

ROVINGTEST is a fully modular system that can be adapted to the customer’s requirements to measure any of the above-mentioned properties. The tester is fast and easy to operate.

The instrument may consist of the following modules:

• Wind-off-module: with active tension control and broken filament counter.
• Eddy current module: induces a current across the roving and detects irregularities in the homogeneity of the filament orientation.
• Friction and Fluff module: measuring fibre/surface and fibre/fibre friction, gravimetric fluff analysis using integrated filter system.
• Width modules: measuring the width of the rovings and detection of gaps.
• Spreading module: spreading bars spread the rovings.
• Wind-up-module:  in combination with the Friction module, the coefficient of friction is measured.

Textechno has developed ROVINGTEST in cooperation with the ITA at RWTH Aachen University and Suragus GmbH.

For testing the performance of tapes, Textechno also offers the modular testing system TAPETEST.