#Research & Development

2021-11-18

ITA PhD student Kai-Chieh Kuo was awarded Best Master’s Thesis Award of Walter Reiners-Stiftung (Foundation)

Kai-Chieh Kuo, PhD student at the Institut für Textiltechnik (ITA) of RWTH Aachen University, was awarded the German Textile Mechanical Engineering 2021 Best Master's Thesis Award for his master's thesis entitled "Modification of the tube weaving process of fine yarns for the production of woven ultra-low profile stent grafts". The prize is endowed with 3,500€. Peter D. Dornier, Chairman of the Board of the Walter Reiners-Stiftung (Foundation), virtually presented the award on the occasion of the ADD International Textile Conference on 9 November 2021.

Significant advance in aortic prostheses through high-density, thin-walled tubular woven fabric

Minimally invasive endovascular aortic repair (EVAR) with textile stent-graft systems is nowadays a clinically established therapy procedure for the treatment of abdominal aortic aneurysms (AAA) – pathological bulges of the aorta. Due to the thick profile of the folded stent graft systems, there is currently a high risk of injuring narrowed or highly angulated access vessels from the inside during implantation. Stent graft systems with smaller profiles could provide an improvement, which could overcome complicated access routes through a lower bending stiffness. One possible approach for reducing the system profiles is the use of thin-walled tubular woven fabrics made of ultrafine multifilament yarns (?20 dtex) as graft material.

Caption: The 2021 winners (from top left to right): Dr Martin Hengstermann, Irina Kuznik, Kai-Chieh Kuo. - Image source: VDMA

Up to now, it has not been possible to process the fine yarns with the required high thread density (>200 threads/cm) and the available weaving technology in order to guarantee sufficient tightness against blood.

In his master's thesis, Kai-Chieh Kuo made high-density tubular weaving of ultra-fine filament yarns possible for the first time by means of suitable modifications to a shuttle loom as well as adaptations in the weaving preparation. In particular, he developed a new innovative reed technology that reduces warp thread friction during the shedding process and thus improves the process stability of the dense tube weaving process of fine yarns.

With the help of the process modification, it was then possible to produce high-density, thin-walled tubular woven fabrics, which were positively evaluated with regard to their suitability for a stent graft. Above all the potential of these tubular fabrics lies in their extremely thin-walled fabric profile, which seals well against blood. By using these new types of tubular fabrics as graft material for stent grafts, the system profile of the folded stent graft system can be reduced without having to compromise the blood tightness of the implant. The technology developed by Mr Kuo is not only applicable to stent graft systems, but also offers great possibilities for use in all other endovascular implants such as trans catheter heart valves, covered stents and small-lumen vascular prostheses.

Through its Walter Reiners-Stiftung (Foundation), the VDMA Textile Machinery Association is actively involved in promoting young engineers. Every year, the Foundation awards prizes for the best dissertation, diploma or master's thesis and the creativity prize for the cleverest student research project. In 2020 and 2018, ITA graduates have already been awarded promotional prizes from each category.

2026 general meeting of the Friends and Supporters of RWTH Aachen at ITA

The Friends and Supporters of RWTH Aachen e. V. (proRWTH) looked back on a successful year of support at their 2026 general meeting. The meeting took place at Institut für Textiltechnik (ITA) of RWTH Aachen and was combined with a joint session of the Executive Board and the Administrative Board. Before the general meeting began, participants were given a guided tour of ITA, providing them with fascinating insights into current research and development topics in textile engineering.

TERNAfil wins first place at PitchMiUp Night 2026 in Minden

The RWTH spin-off TERNAfil has developed MAXCarbon, a new high-performance hybrid fibre that combines the mechanical performance of carbon with the temperature and corrosion resistance of ceramic materials. For this development, TERNAfil was awarded first prize at the PitchMiUp Night in Minden on 21 May 2026.

Carbon-ceramic hybrid fibre proves its worth – NRW Minister for Science Mona Neubaur congratulates ITA start-up TERNAfil

MAXCarbon technology, a novel carbon-ceramic hybrid fibre developed by ITA spin-off TERNAfil, secured third place at the HIGH-TECH.NRW Demo Day on the TÜV NORD campus in Essen. The technology combines the strength of carbon fibres with the temperature and corrosion resistance of ceramic materials. Mona Neubaur, Minister for Science in North Rhine-Westphalia, congratulated the team on their success and on winning prize money of 4,000 euros.

TCLF: Resilient value chains in times of crises

The textiles, clothing, leather and footwear (TCLF) industry was at the centre of the webinar “Resilient value chains in times of crises”, which took place on 28 April 2026. Global supply chains continue to face increasing pressure, raw material dependencies are growing and economic uncertainties are affecting the entire sector.

Meadow Grove Research joins ITMF as Corporate Member

Meadow Grove Research is a commodity research firm specializing in supply, demand, and trade analysis in cotton and other soft commodities. Providing clarity to the complex nature of the global fiber supply chain is one of its most formidable services. The firm thrives on customer engagement and providing the best framework for critical decisions.

ALADIN paves the way for circular and demand-driven textile production in Europe

Textile production can be organized sustainably by utilizing short supply chains and preventing overproduction. This can already be achieved today by intelligently connecting and efficiently utilizing existing infrastructure. At the same time, production becomes circular when innovative technologies and materials are used that enable high-quality recycling. The ALADIN research project, launched in May 2026 and co-funded with five million euros under the EU Horizon Europe program, is creating the conditions for this.

TERIS reaches milestone: Fraunhofer consortium develops new standards for tire analysis

In the “TERIS” project, the Fraunhofer institutes ICT, IGD, and IWM—led by the Fraunhofer Institute for Structural Durability and System Reliability LBF—have reached a decisive milestone. For the first time, the teams aim to generate, analyse, and predict tire wear in the laboratory in a standardized and practical manner. As part of this milestone, results are now available on reference abrasion, particle analysis, tribological models, AI-based surface analysis, a test bench concept, and methods for accelerated aging and VOC detection. The tire industry, testing services, and environmental agencies will in future benefit from reliable, rapid laboratory procedures for emissions assessment.

Geotextiles made from recycled materials: GREEN leads the way into the industry

For the industry, recycled materials are creating new opportunities in geotextile production. In the GREEN project, the Fraunhofer Cluster of Excellence Circular Plastics Economy CCPE demonstrates that recycled polypro-pylene (PP), polyethylene terephthalate (PET), and high-density polyeth-ylene (HDPE) can be processed into nonwovens, fibers, and membranes that meet industrial requirements. This creates opportunities for use in existing production lines and new value chains in the geotextile market.

Rieter sees Barmag integration on track as orders and sales rise

The first half of 2026 was shaped by the successful completion of the largest acquisition in Rieter’s history. The Man-Made Fiber Division enables entry into the growth segment of man-made fibers and sustainably strengthens Rieter’s market position in the Asia region. The expanded Group is now the world’s leading system supplier for the processing of natural and man-made fibers. In the first half of the year, initial cost savings in material costs and operating expenses have already been realized. The targeted synergies are expected to amount to at least CHF 20 million by the end of the 2028 financial year. Due to the completion of the acquisition on February 2, 2026, the first half of the year for the Man-Made Fiber Division only amounts to five months.