Application Center for Wood Fiber Research HOFZET

Research focus

Functionalized technical textiles

We develop functionalized technical (hybrid) textiles as well as semi-finished products by means of weaving technology with a multitude of application possibilities, e.g. in lightweight vehicle construction, natural-fiber concrete or as conducting paths.  

© Photo Fraunhofer WKI

Multi-layer hybrid fabric made from flax (brown) and glass (gray).

© Photo Frauhofer WKI

Single-layer hybrid fabric made from flax (brown) and thermoplastic matrix (white)

We use a double-rapier weaving machine in order to produce technical fabrics with differing forms of weave. In addition to multi-layer and spacer textiles, we develop primarily hybrid fabrics. The possible material combinations for hybrid fabrics are extremely diverse. Besides the common reinforcing fibers such as carbon, glass and aramid, the processing and integration of natural fibers is very much in the foreground (image: multi-layer hybrid fabric made from flax).

For the application in a composite material, thermoplastic fiber materials can be integrated directly into the fabric (image: single-layer hybrid fabric made from flax). In a further process step, the production of the composite material is carried out, for example as organic sheet. Further processing of the fabric with a thermosetting matrix system is also possible.

In addition to the creation of textile semi-finished products for the manufacture of fiber-composite structures, this weaving technology can furthermore be implemented for the integration of different functions. One example is conductive yarns or wires, which can be woven into the fabric where they can be used as sensors or conducting paths.