#Textile chemistry

2025-06-05

Suiting up Team Sonnenwagen with more sustainable sportswear created through a three-way partnership

Team Sonnenwagen Aachen, a solar racing collective from RWTH Aachen and FH Aachen, Germany, is on a mission to advance sustainable mobility solutions and become world champions. This August, the student team will participate in the 2025 Bridgestone World Solar Challenge, a biannual 3,000-kilometer race across the Australian outback. During the five-day event, 50 student teams from around the world will compete with solar vehicles that they must design, assemble, and drive themselves.

The new design for Team Sonnenwagen’s sports shoes was produced using Huafeng's proprietary HAPTIC® Art textile coating system containing partially bio-based INSQIN® PU dispersions from Covestro. © 2025 Huafeng

Just last week, Team Sonnenwagen unveiled their new solar car, the Aethon, which they will take to this year’s race. However, for the team to secure victory, several factors must align. In addition to the car itself, the team requires suitable apparel. To meet this need, Huafeng, a Chinese textile technology company, will supply Team Sonnenwagen with high-performance sports shoes, shorts, and trousers that offer a reduced CO2 footprint compared to conventional sportswear.**

Reflecting on the longstanding partnership between Huafeng, Cyclone, and Covestro, Dr. Torsten Pohl, Head of Global Textile Coatings at Covestro, said: “The new sports kit looks fantastic! By incorporating our partially bio-based Impranil® CQ PU dispersion into its textile coatings and using recycled yarns from Cyclone, Huafeng has successfully achieved an excellent balance of high performance, aesthetic appeal, and low environmental impact. This collaboration demonstrates that manufacturers can meet the increasing demand for more sustainable sportswear without compromising durability, style, or performance.”

The new sportswear of Team Sonnenwagen is made from partially recycled PET yarns and is screen-printed with HAPTIC® ink, which contains partially bio-based PU dispersions. © 2025 Huafeng

Huafeng created Team Sonnenwagen’s 2025 sports kit using yarns supplied by Cyclone, a yarn manufacturing partner. Cyclone produced these yarns from recycled polyethylene terephthalate (rPET) from plastic bottles collected in Fujian Province, China. Additionally, Cyclone employs a dope-dyeing technique for its yarns, which uses 57% less energy, 77% less water, and generates 51% lower CO2 emissions than traditional dyeing techniques.* The dyed fabric is then finished with Huafeng’s HAPTIC® ink, which contains a partially bio-based PU dispersion supplied by Covestro, Team Sonnenwagen’s core sponsor and supporter since 2017.

To help Team Sonnenwagen stand out on the racetrack, Huafeng embellished its shorts, sports shoes, and trousers with screen-printed designs created using its HAPTIC® ink. Huafeng can create stunning three-dimensional design effects using this ink while reducing environmental impact. This is because Huafeng developed its HAPTIC® textile coating system using the partly bio-based Impranil® CQ DLS/1 resin from Covestro, which has a 38% lower carbon footprint than standard grade Impranil®.** For Team Sonnenwagen, this won’t be the first time it has encountered Covestro products; partly bio-based PU dispersions from Covestro are also used in the textile material that covers the steering wheel in the team’s solar car.

Dr. Thomas Schmidt, Director of Innovation & Creation at Huafeng, commented on the recent collaboration: "By using partly bio-based Impranil® CQ solutions from Covestro, we’re pioneering sustainable textiles with innovations such as HAPTIC® Art ink. This ink formulation delivers a reduced CO2 footprint**, offers extensive customizability, and can be used in high-performance textiles like sportswear.”

The collaboration between Huafeng, Cyclone, and Covestro demonstrates that combining innovative manufacturing with partly recycled fabrics and partly bio-based textile coatings helps manufacturers create more sustainable sportswear while ensuring performance, durability, comfort, and style. With the right equipment and support, Team Sonnenwagen is well prepared to take the pole position in the race this August.

*SGS report from 2021 (Cyclone).

**According to internal calculations.

Covestro to exhibit solutions for a more sustainable and productive textile industry at Techtextil 2026

Covestro will present a broad portfolio of material innovations for textile coatings, adhesive films and thermoplastic polyurethanes (TPUs) at Techtextil 2026 (Hall 11.0, Booth C79). The exhibits will demonstrate how advanced solutions can enhance durability, recyclability and manufacturing efficiency across applications such as automotive, infrastructure, protective apparel and sportswear. A particular focus will be on more sustainable coating technologies, including antimicrobial systems based on INSQIN® in combination with AGXX from Heraeus Precious Metals, as well as the integration of Pontacol® thermoplastic adhesive films into Covestro’s offering.

Covestro showcases monomaterial concept in autonomous SUE People Mover

UE | STUDIOS has unveiled the fully autonomous electric minibus “Self-driving Urban E-Shuttle” (SUE), placing strong emphasis on sustainable material design. Developed within a project funded by the Federal Ministry for Economic Affairs and Energy (BMWE) and the European Union, the vehicle will begin public road testing this year. At the core of the concept is the consistent use of recyclable monomaterials to improve circularity at end of life.

Covestro and Heraeus Precious Metals collaborate to enable safer, more sustainable antimicrobial textile coatings

Laboratory tests reveal that AGXX antimicrobial surface technology from Heraeus Precious Metals is fully compatible with Impranil® PU dispersions which are part of the waterborne INSQIN® textile coating technology from Covestro, paving the way for more sustainable antimicrobial textile coatings. This discovery comes at a key moment for the textile coatings industry. As the sharing economy continues to grow, more people are coming into regular contact with high-use surfaces, creating ideal conditions for bacteria, viruses, and other microorganisms to thrive.

Covestro celebrates decade of innovation and sustainable growth

Covestro celebrates its 10-year anniversary today. Since its carve-out from Bayer in 2015, the company has developed into a global leader in high-performance polymer materials and a pioneer in circular economy solutions. With a strong focus on innovation and sustainability, Covestro’s materials are now embedded in countless applications worldwide – from mobility and construction to electronics, healthcare, and consumer goods.

Archroma expands denim possibilities at Kingpins Amsterdam

Archroma, a global leader in specialty chemicals, will present a portfolio of six sustainable denim innovations at Kingpins Amsterdam from April 15-16, 2026. Under the theme “Creating Possibilities in Denim”, the showcase reflects Archroma’s commitment to giving brands and mills solutions that are as commercially compelling as they are environmentally responsible.

A flagship for chemical production: BASF inaugurates world-scale Verbund site in China

BASF today (March 26, 2026) celebrated the official inauguration of its newly built, world-scale Verbund site in Zhanjiang, Guangdong Province in southern China. Covering an area of around four square kilometers, it is more than a major BASF project in the chemical growth market of China. “Zhanjiang shows what the future of chemistry looks like: efficient, digital and sustainable by design. The site showcases a smart integrated Verbund structure on an industrial scale,” said Dr. Markus Kamieth, CEO of BASF, at the ceremony attended by representatives from government, customers, business partners and employees.

New study shows low environmental impact by Cotton made in Africa Organic Cotton from Tanzania

Today, the Aid by Trade Foundation (AbTF) is announcing the results of a comprehensive life-cycle analysis (LCA) for cotton produced in Tanzania under the Cotton made in Africa Organic (CmiA Organic) standard. The study emphasises the small ecological footprint of CmiA Organic verified cotton. This can largely be traced back to the absence of synthetic pesticides, artificial fertilisers, and artificial irrigation. Consequently, CmiA Organic cotton can help the textile industry meet regulatory requirements as well as science-based targets. The results also show that the consequences of climate change threaten the livelihoods of these cotton farmers, even though the type of agriculture they practise barely contributes to climate change.

PERFORMANCE DAYS proves its relevance as the industry’s key meeting point

Held on March 18–19, 2026, PERFORMANCE DAYS once again confirmed its position as a leading international platform for functional textiles. A total of 3.366 trade visitors and around 560 exhibitors gathered in Munich, with the event already kicking off successfully on DAY 0, which received highly positive feedback for its interactive format. Despite challenging conditions caused by the public transport strike in Munich, the event saw strong attendance and a consistently high level of activity across both exhibition days.