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#Research & Development

Sustainable athletic wear made from bio-based Polyethylene

Conventional sports textiles made from petroleum-based synthetic fibres are to be replaced in the future by sustainable, bio-based, cooling textiles. Polyethylene, previously used mainly in the packaging industry, is thus qualified for use in textiles and, as a bio-based drop-in solution, offers a cost-effective, sustainable alternative for the future.

TECNARO (Ilsfeld/Germany), BB Engineering (Remscheid/Germany), FALKE (Schmallenberg/Germany) and the Institut für Textiltechnik (ITA) of RWTH Aachen University have developed textiles from bio-based polyethylene (bioPE) in the bioPEtex project of the BIOTEXFUTURE Innovation Space.

TECNARO develops the bio-based PE compounds and handles their dyeing. ITA is concentrating on the process development for melt spinning (partially-oriented yarn, POY) and false-twist texturing (draw-textured yarn, DTY) of the bioPE yarns. BB Engineering implements the false-twist texturing on an industrial scale, and FALKE is developing the final T-shirt, which will be treated with a bio-based finish for improved elasticity.

(a) bioPE granule, source: FALKE; (b) bioPE-POY and bioPE-DTY, source: FALKE; (c) REM image of bioPE-POY, source: ITA; (d) REM image of bioPE-DTY, source: ITA; (e) T-shirt made primarily from bioPE yarns (front), source: FALKE; (f) Back of the T-shirt, source: FALKE; (g) Close-up of the T-shirt, source © 2026 FALKE
(a) bioPE granule, source: FALKE; (b) bioPE-POY and bioPE-DTY, source: FALKE; (c) REM image of bioPE-POY, source: ITA; (d) REM image of bioPE-DTY, source: ITA; (e) T-shirt made primarily from bioPE yarns (front), source: FALKE; (f) Back of the T-shirt, source: FALKE; (g) Close-up of the T-shirt, source © 2026 FALKE


The successful creation of a first T-shirt from the yarns developed in this project underscores their promising characteristics. This represents a key milestone and forms the basis for investigating potential market readiness in subsequent phases. Above all, the white BioPE T-shirt impresses with its pleasantly cool and soft touch. However, additional development, characterisation, and optimisation steps are necessary to make a market introduction possible.



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

#Research & Development

Elastic yarns to become more recyclable and environmentally friendly in future

On 29 April 2026, ITA student Tobias Dickmeiß was awarded a sponsorship prize by the Wilhelm Lorch-Stiftung for his innovative approach, to replacing conventional elastane with elastic yarns made from thermoplastic copolyester elastomers (TPC). Thanks to their thermoplastic nature and compatibility with typical polyesters used in the textile industry, elastic TPC yarns offer improved recyclability. Furthermore, the use of the melt-spinning process in yarn production eliminates the need for solvents that are harmful to the environment and human health.

#Research & Development

Walter Reiners Foundation Prize awarded to three ITA graduates

Sabina Dann, Lukas Balon and Annegret Storm from the Institut für Textiltechnik (ITA) of RWTH Aachen University were awarded the Walter Reiners Foundation Prize by the German Engineering Federation (VDMA) for their master’s and bachelor’s theses. Peter Dornier, Chairman of the Walter Reiners Foundation, presented the awards during Techtextil at the VDMA stand in Frankfurt am Main, Germany.

#Research & Development

ITA spin-off Solid Air (SA) Dynamics reaches the semi-finals of the Rice Business Plan Competition

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#Techtextil 2026

Smart textiles can also be sustainable, eco-friendly and AI-powered – ITA at Techtextil 2026

Sports shoes made from algae, leggings made from mushrooms, filtering (diesel) oil from water, 4D textiles, recyclable, sustainable and featuring AI – this is what the ITA Group is presenting at three individual stands run by ITA Aachen, ITA Augsburg gGmbH and ITA Technologietransfer GmbH on the joint stand of Elmatex in hall 12.0 D05.

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#Research & Development

Textile climate control system in workwear – exhibition at the 2026 SME Innovation Day!

Conventional protective workwear often reaches its limits during strenuous physical activity. In particular, the transport of sweat and excess body heat poses a problem. The German Institutes of Textile and Fiber Research (DITF) conducted research on flow-optimized, air-conducting textile structures that enable targeted climate control directly on the body. These structures can be integrated straight into protective work garments. The textile climate control system supports the body’s natural thermoregulation. This contributes to improved workplace safety and comfort.

#Techtextil 2026

Young talents honoured – 60 years Walter Reiners Foundation

At the Techtextil trade fair in Frankfurt at the end of April, Peter D. Dornier, chairman of the VDMA’s Walter Reiners Foundation, presented awards to five successful young engineers. Promotion and sustainability awards were presented in the categories of bachelor’s/project theses and diploma/master’s theses. Academic theses are eligible for the sustainability awards if, for example, they develop solutions for resource-efficient products and technologies.

#Research & Development

Regional hemp bast for lightweight construction profiles

The cultivation of fibre hemp for the production of ropes and clothing has a long tradition in Saxony. Due to its excellent fibre properties, it is also suitable as a renewable raw material for reinforcement in fibre composites. At the STFI and IWU in Chemnitz, the CannaPul project is cur- rently investigating how a regional value chain for hemp-based lightweight construction profiles can be established. To this end, the technical processing of hemp fibres into continuous fibre strands and their embedding in a suitable bio-based matrix are being investigated.

#ITMA 2027

ITMA 2027 opens Start-Up Valley applications following success stories from 2023

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#ITM 2026

Itema to showcase weaving excellence at ITM 2026

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#Textiles & Apparel / Garment

Global size study for brands and retailers to optimize fit and market coverage

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#ITMA 2027

Last chance to apply: ITMA 2027 Start-Up Valley closes tomorrow

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#Denim

Jeanologia brings “Billy” to China, the AI transforming denim design

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