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#Domotex 2018

BleNaBis: Climate-neutrale carpet fibres - awarded by KlimaExpo.NRW

The surfaces of carpets are generally made of wool or synthetic fibres such as polyamide. The carbon footprints of these two materials are not as “fluffy” as the carpets are soft however: wool production is an energy-intensive process as a result of keeping animals. In collaboration with other European research institutes, the Institut für Textiltechnik (ITA) of RWTH Aachen University is currently develops a climate-neutral yarn based on renewable raw materials, which will not only match the quality of polyamide, but can also be produced in a more energy efficient way.

The fibres consist of linseed fibres and a sustainable eco-polyamide fibre. The linseed fibre comes from flax fibre which is extracted from the stems of flax plants that are no longer needed. The eco-polyamide fibre consists of 70 percent castor oil, which is obtained from the castor oil plant, a plant that does not compete with the food production sector. The combination of these two fibres will make the carpet durable and of high quality. The fibre blend is expected to cut the climate footprint of a carpet by 50 %.

Quality control using the office chair simulator

More than 50 per cent of all carpets are not woven but “tufted”, whereby textile loops are worked into a fabric backing, similar to the method used in tatting. The quality standards are high and the carpets produced have to be subjected to very stringent quality analysis. An office chair simulator carries out a stress test to check whether the carpet can withstand the level of wear to be expected in an office.

BleNaBis carpet (c) 2018 ITA
BleNaBis carpet (c) 2018 ITA


BleNaBis process steps (c) 2018 ITA
BleNaBis process steps (c) 2018 ITA


Hybrid carpet yarn Linseedflax and biobased Polyamide 6.10 (c) 2018 ITA
Hybrid carpet yarn Linseedflax and biobased Polyamide 6.10 (c) 2018 ITA


BleNaBis (Blends of Natural and Biosynthetic fibres for eco-efficient yarns and carpets) covers all stages of the value added chain: from harvesting right up to producing the carpet.

The flax fibre is cultivated and processed in the Czech Republic; the ITA mixes the linseed fibre with the polyamide fibre and spins the yarn from this using the rotor spinning process. The production and testing of the carpets is then carried out at the TFI Institut für Bodensysteme an der RWTH Aachen e.V.

The BleNaBis project was funded by the Federation of Industrial Research Associations (AiF) as part of the programme to support Industrial Community Research and Development (IGF) through a grant by the German Federal Ministry for Economic Affairs and Energy, on the basis of a resolution passed by the German Bundestag.

The official award ceremony will take place at the beginning of 2018.

Engineer Dipl.-Ing. Marko Wischnowski and M.Sc. Tobias Schlüter, both ITA, Project Leaders of BleNaBis say: “In the BleNaBis project, we are developing processes used to produce flooring systems from bio-based polyamides and linseed flax fibres. The combination of these two materials allows us to improve the carbon footprint of flooring systems. In addition, we are demonstrating new areas of application for natural fibres and bio-based polyamides.”


More News from Institut für Textiltechnik of RWTH Aachen University (ITA)

#Research & Development

Aachen Summer School: Strengthening German-Korean cooperation in 4D and robotics

The Aachen Summer School has established itself as an important platform for promoting cooperation between RWTH Aachen University and Seoul National University. The focus is on practice-oriented research projects in the field of 4D and robotics technologies, which have been successfully implemented for years at the Institut für Textiltechnik of RWTH Aachen University.

#Research & Development

ITA postdoc Dr Leonie Beek is revolutionising oil filtration with a bionic textile

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#Research & Development

Cooperation between Germany and India (Tamil Nadu) in the field of AI-supported manufacturing, robotics and smart textiles

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#Research & Development

DigiCafé – Espresso meets Industry 4.0

Drink coffee and learn about Industry 4.0 in a fun way – that's what ITA PhD student Rosario Othen has made possible with his digital espresso machine. Rosario equipped the Quickmill espresso machine with a proportional-integral-derivative (PID) controller, programmable pump, integrated scale and current measurement.

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#Recycling / Circular Economy

Toray develops recycling technology that retains carbon fiber strength and surface quality

Toray Industries, Inc., announced today that it has developed a recycling technology that can decompose diverse carbon fiber reinforced plastics (CFRP) made from thermosetting resins while retaining the strength and surface quality of those fibers. The company drew on this technology to create a nonwoven fabric employing recycled carbon fibers.

#Research & Development

Panty liners prevent bacterial vaginosis

Worldwide, almost one third of women of childbearing age suffer from bacterial vaginosis. This is when the sensitive microbiome of the vagina becomes unbalanced. Such a disorder of the vaginal flora can cause urogenital infections, abscesses on the ovaries or fallopian tubes or premature births. This significantly increases the risk of infertility in women and of contracting a sexually transmitted disease or HIV.

#Research & Development

Soft interfaces: Textile-integrated light switches, made possible by printable Liquid Metal Ink

A gentle tap on the knitted lampshade is enough to switch on the light. The lamp developed by Fraunhofer IZM in cooperation with WINT Design Lab works with a revolutionary conductive ink. Visitors can find out more and try the lamp themselves at the Berlin Science Week on November 1st and 2nd.

#Functional Fabrics

PERFORMANCE DAYS sets benchmarks with record attendance & strong industry presence

With around 4,500 professional visitors and 515 exhibitors, PERFORMANCE DAYS closed its doors on October 30, 2025, after two highly successful days in Munich. Expanded show areas, an international audience, a top-class Expert Talks program, and an inspiring DAY 0 Conference with an innovative concept underlined one thing clearly: PERFORMANCE DAYS has become the leading business platform for the functional textile industry.

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