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Von der Idee zum Transfer

Center of Excellence in








Competence brochure

Nonwovens are generally regarded as helpers in secret because of their often concealed installation and functionality. However, since at least the Covid-19 pandemic, they have become more present and visible to everyone. In particular, extrusion nonwovens offer excellent and adjustable filter properties, which make them destined for the production of mouth-nose protective masks. There was no question that the available systems engineering at STFI’s center of excellence in nonwovens was transferred from experimental to production mode in short term in order to meet the soaring demand with albeit small production volume. After all, around 4.2 tons of SMS nonwovens were delivered to converting every week by mid-2020. A quantity sufficient for the production of at least 750,000 masks. With this challenge our employees have gained valuable experience in terms of process optimization. Additional knowledge and new ideas for future research topics were generated.

Developments far away from the pandemic have also had and still have their permanent place in our activity profile. The current transformation in the automotive industry is not directly felt by falling order numbers, but by demanding hype of development requests. The driving force for this transformation is surely the change to e-mobility. We continue to deal with sustainable topics in the areas of lightweight construction, recycling and use of renewable resources. Changing social conditions place new demands on filtration or acoustics, for which we work on intelligent solutions. Our team has strengthened with a number of young scientists and technicians. We look forward to intensive thematic discussions and exciting professional cooperation with you.

Any questions?

Your contact

Patrick Engel, M. Sc.
Manager Center of Excellence in Nonwovens

Phone: +49 371 5274-204

Processes, Technologies, Products

  • Web formation
  • Nonwoven bonding
  • Fibre-, spunbond- & meltblown nonwovens

Fibre Preparation & Yarn Production

  • Preparation of natural and man-made fibres
  • Sliver, yarn and twine production
  • Quality assessment

Digitisation & Industrie 4.0

  • Networked Production & Robotics
  • Simulation & Modeling
  • Data Analytics

Technical Equipment

  • Needle punched and stitch-bonded nonwoven line
  • Spunbond line
  • Meltblow line


  • Test method
  • Customized tests
  • Test equipment

Research Services

  • Contract research
  • Customer-oriented product development
  • Small batch production

Textile Recycling

  • Cutting and cut-grinding
  • Tearing
  • Smart Textiles

Functionalisation/Chem. analytics

  • Surface functionalisation
  • Textile composite structures
  • Chemical analytics


Fibrous materials

  • Staple fibers from natural polymers

  • Viscose, alginates, acetate

  • Staple fibers from synthetic polymers
    PP, PES, PLA, PBS, PA, special fibers

  • Special fibers from non-polymers
    metal, glass fibers, basalt fibers

  • Organic animal natural fibers
    Sheep wool, alpaca wool

  • Organic natural plant fibers
    cotton, kapok, flax, hemp, leaf fibers

  • Reclaimed fibers from textile production waste and old clothes

Granules for extrusion

  • Petrochemical polymers (PP, PES, PA, PEEK, PU)
  • Polymers from renewable raw materials (PLA, PBS)
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Fields of application



Research News

Voluminous filter media with high dimensional stability


The main task in a research project was to increase the dimensional stability of the filter material/pile fibre nonwoven fabric and to reduce the unbalanced strength and elongation behaviour towards MD:CD=1:1. This could be realised on the one hand by the additional spunlace layer applied to the mesh side of the Kunit nonwoven fabric, and on the other hand by the use of the Maliknit process, in which a crosswise laid fibre nonwoven is feeded into the Kunit machine (see Fig.). The testing of the filter materials in incineration plants on an industrial scale was carried out together with the project partners Institut für Luft- und Kältetechnik gGmbH, Dresden, and the company Endress Holzfeuerungsanlagen GmbH, Burgbernheim.

Any questions?

Your contact for the project

Dr.-Ing. Barbara Schimanz
+49 371 5274-202

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Completed projects

Cooperations & Networks

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