From the Sector

• Joint proposal of TUD and RWTH Aachen University

On 29 May, the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) decided to fund the Collaborative Research Centre (CRC)/Transregio 280 "Carbon reinforced concrete" at Technische Universität Dresden, short TUD, and RWTH Aachen University with the participation of the Institut für Textiltechnik, short ITA, with 12 million euros over the next four years.

The CRC/Transregio 280 “Design Strategies for Material-Minimised Carbon Reinforced Concrete Structures - Principles of a New Approach to Construction” breaks with the traditional way of designing reinforced concrete plants. The interdependence of reinforcement and matrix is being investigated in depth and a completely new design and construction strategy for building with carbon reinforced concrete is being developed.

Carbon reinforced concrete enables completely new design and construction possibilities in the building industry. The reasons for this are its very high strength and the possibility of a very low concrete overlay of only a few millimetres, as carbon, unlike structural steel, does not rust. However, the successful use of the new material, which was awarded the German Future Prize in 2016, requires completely new design and production strategies, which are being investigated in the CRC/Transregio.

Up to now, textile reinforcements have been coated and cured prior to component manufacture. This process is called offline consolidation. These stiff semi-finished products are not suitable for the production of complex components based on new, digital and continuous manufacturing processes (including 3D concrete printing and concrete extrusion). Therefore, ITA is investigating in the sub-project B02 of the CRC/Transregio how forming and consolidation steps are shifted in time by prepreg systems into the concreting process and how they can be applied within the new digital continuous manufacturing processes. In addition to established curing mechanisms, such as by heat or UV radiation, new approaches are also being researched. These new approaches include activation via the alkalinity of the concrete, microwaves and induction

The TUD and RWTH Aachen were awarded the grant on the basis of many years of experience in the research field of textile reinforced concrete. The material textile reinforced concrete was developed in two special research areas at both universities from 1999-2011 and was first fundamentally researched.

19 individual institutes are involved in the CRC/Transregio 280. The spokesman of the TUD is Professor Dr Manfred Curbach, the spokesman of the RWTH is Professor Dr Josef Hegger.

• AACOMA - Accelerate advanced composite manufacturing
• EMR Region Belgium, the Netherlands & Germany area hot spot for the future of lightweight materials and technologies

The Euregio Meuse-Rhine provides a huge potential with its many highly innovative, leading companies and especially SMEs which are active in the area of advanced material manufacturing in many industrial sectors, such as Automotive, Aerospace, Electronics, Building and Infrastructure, etc. The advanced material sector is growing, with a consolidated offer, ranging from raw material producers over technology development to production, research and development as well as industrial OEMs.

Interreg Euregio Meuse-Rhine invests EUR 96 million from the European Regional Development Fund (ERDF) in the period 2014-2020. Through the investments in cross-border projects, the European Union invests in the economic development, innovation, territorial development and social inclusion and education of this region.

Project

The Euregio Meuse-Rhine is a potential hot-spot for the further development of advanced material and process technologies. Technical Centers and Institutes around Aachen/Germany, Liège/Belgium and Eindhoven/The Netherlands were awarded with this new project AACOMA.

Innovative material design and advanced manufacturing provide large opportunities for SMEs. The AACOMA project kick-off took place in Aachen at the Campus of the RWTH University of technology in 1 Q 2020. The aim of the project, which is running for 3 years until 2023 with a budget of €3 Mio, is to connect SMEs with innovation hot-spots like institutes and technical centers.
Seven partners from all three regions will carry the project out: Centexbel is the project leader and gets support by University of Liège, Sirris and Flanders Make from Belgium, as well as Fontys University of Applied Science and AMIBM of Maastricht University in the Netherlands and AMAC in Germany.

Statements

Bernard Paquet, Project Coordinator from Centexbel/ Belgium stated:
“Centexbel, with a strong experience in textile and composites, will identify with its Interreg partners and an advisory board of international experts several demonstrators which will enable an accelerated advanced manufacturing of composite parts. This could include new materials and intermediates, high performance additives, bio-based products and new composites by additive manufacturing”.

Michael Effing, Managing Director of AMAC/ Germany said:
“The major goal of the project is to connect around 200 innovative SMEs with each other and establish the links to the world-class institutes in the EMR region. We will facilitate 6 roadshow events, addressing key topics like automated manufacturing, additive manufacturing or bio-based material systems combined with match making and training events. The first roadshow will be held on September 24, 2020 at the Aachen Campus of the RWTH University of Technology.”

Prof. Gunnar Seide from the AMIBM/The Netherlands continued:  
“Our AMIBM offers already an international master program on bio-based materials. The AACOMA project will be an important element for transborder research and will identify new players in the value chain coming from the EMR region. Innovative companies find markets for their new bio-based building blocks, chemicals and polymers. Their success stories and upcoming technological breakthroughs are needed for a sustainable future.”

STAMFORD – German ultralight aircraft specialist Flight Design has chosen Hexcel as its key supplier adopting low-temperature curing prepreg into its aircraft production. Hexcel’s HexPly® M79 Carbon Fiber prepregs deliver a more consistent final product by ensuring constant material quality and processing parameters and produce a lighter and stronger aircraft at a more competitive overall cost.

Flight Design has always relied heavily on composites for its aircrafts’ ultralight construction and turned to long-term composite materials partner Lange + Ritter, part of Hexcel’s European distribution network, when they began searching for a prepreg material solution. Hexcel and Lange + Ritter created several new product codes specifically for Flight Design and then supplied materials for initial handling trials and prototyping. Hexcel’s HexPly M79 low temperature curing out of autoclave solution was first used in the new F2 prototype. As part of its material supply package, Lange + Ritter also sent a team for on-site training and technical support, allowing the Flight Design production team to get up to speed with prepreg as quickly as possible.

HexPly M79 prepregs can be cured at temperatures as low as 70˚C for eight hours or 80˚C for four hours, reducing tooling costs and increasing build rates. When combined with Hexcel’s innovative air venting Grid Technology, HexPly M79 UD carbon tapes can also be laminated with reduced debulking steps to produce void contents <1% irrespective of laminate thickness. With consistently low void contents and improved mechanical properties, designers and engineers are able to further optimize highly loaded composite aerostructures.

As more and more of its composite aircraft parts are transferred to prepreg technology, Flight Design is seeing the benefits of its switch to HexPly M79. Lay-up is cleaner and more precise, low temperature oven curing is quick and energy efficient, and the manufacturing process consistently outputs exceptionally high-quality laminates and components. The long-term strategy is to integrate HexPly M79 across the range, with Hexcel materials lightening the ultralight aircraft at Flight Design even further.

“The materials and technology package from Hexcel and Lange + Ritter has been a big success for us at Flight Design,” comments Daniel Gunther, Managing Director at Flight Design. “When we took the decision to switch to prepreg, we looked at many options but only Hexcel and Lange + Ritter could offer us low temperature out-of-autoclave (OOA) curing, globally respected material quality and the customer service levels we were searching for.”

Less wear and superior fiber quality

Technological changes to Oerlikon Neumag’s Baltic crimper thrust pad contacting device have resulted in considerably reduced friction in the crimper rolls and hence less wear and fewer metal particles contaminating the crimped staple fibers.

Thrust pads close the gap between the crimper rolls on either side. Normally, these thrust pads are continually pressed – under high pressure – against the sides of the crimper rolls. Wear and metal debris on the thrust pads is the result of this constant contact. The metal debris can contaminate the fibers, something that is particularly undesirable in hygiene applications.

New thrust pad contacting device for reduced metal debris and greater durability
With the new system, the thrust pads are pressed against the rolls with less pressure and then fixed into place. This prevents fibers from being caught and the frictional force between the pressure disk thrust pad and the crimper roll is minimized. Pilot applications have demonstrated that metal debris from the pressure disks thrust pads is dramatically reduced, making them between three and seven times more durable.

Major technological changes to Oerlikon Neumag’s RoTac³ tangling unit produce even more efficient BCF yarn tangling. On the one hand, the tangling nozzle has been flow - optimized, allowing the air pressure to be lowered by approximately 10 percent compared to its predecessor while maintaining the same knot strength. Furthermore, the nozzle bearing arrangements have been improved. Consequently, either higher speeds or nozzle rings with greater numbers of holes can be used, generating more knots in the yarn.

Even at high production speeds, tangling knots can be set considerably more evenly with the RoTac³ than in the case of other conventional tangling units. Frequent tangling dropouts are now a thing of the past. This ensures better yarn quality and has a positive impact on further processing. The result: the carpet has a visibly more even appearance.

Stable and efficient yarn production is hugely important to yarn manufacturers. Not only does the evenness of the tangling knots make the investment interesting, so too does the energy efficiency of the RoTac³. The tangling unit requires up to 50 percent less energy for generating compressed air. Against the background of rising energy prices, this represents an excellent prerequisite for optimizing production costs.

Oerlikon Neumag has been able to secure various retrofit contracts since the launch of the RoTac³ in 2015. And new systems are predominantly equipped with RoTac³. The RoTac³ is included in the standard scope of delivery for the newer BCF S8 system. The tangling unit is available as an option both for the single-end Sytec One system and the three - end S+ and it can also be retrofitted on request.

HeiQ, winner of the Swiss Technology Award and Swiss Environmental Award, launches HeiQ Viroblock NPJ03, an antiviral and antimicrobial textile treatment that is tested effective against coronavirus.

Since its inception 15 years ago, HeiQ has forged a solid innovation track record helping brands improve textile products. Catalyzed to action by the global fight against Coronavirus, HeiQ launches HeiQ Viroblock NPJ03, an antiviral and antimicrobial textile treatment which is proven effective against human coronavirus (229E) in face mask testing, significantly enhancing the antiviral log reduction from 2.90 of untreated face masks to 4.48, over 99.99% reduction of virus infectivity. (Remarks: a log reduction of 2 is equivalent to 100 times the effectiveness).

Chinese protective masks producer Suzhou Bolisi is the lead adopter of HeiQ Viroblock NPJ03. Treated masks will be available on the market as early as this April. American legwear manufacturer Kayser-Roth is planning to add the technology to their new product, Ghluv hands protector, while Lufeng from China is evaluating the technology on other types of fabric used for garments.

HeiQ Viroblock NPJ03 is a unique combination of vesicle and silver technologies designed to inhibit the growth and persistence of bacteria and viruses. The HeiQ vesicle technology targets lipid- enveloped viruses, such as coronavirus, providing rapid virus deactivation, while the HeiQ silver technology inhibits the replication of both bacteria and viruses. HeiQ Viroblock NPJ03 can be applied to a wide spectrum of textile surfaces including face masks, air filters, medical gowns, curtains, drapes and more. HeiQ also has a range of highly wash-durable antimicrobial and odor control textile technologies, called HeiQ Pure, combining silver-based and bio-based materials for all fabric types.

• Move is in line with global growth strategy with a strong focus in the Asia Pacific region
• Zhejiang plant will be able to produce 50,000 tons of nylon compounds annually in the longer term
• Plant will be located in the convenient transportation port area of DuShan Pinghu city

DOMO Chemicals, a leading producer of high - quality engineering materials for a diverse range of markets, has announced plans for a new state - of - the - art plant in Zhejiang, China. The new plant will be capable of producing 50,000 tons of sustainable and innovative engineered nylon compounds each year. The company signed a new factory project through “cloud contract” with PingHu DuShan port Economic Development District on February 20, 2020. Production is expected to commence in the fourth quarter of this year.

DOMO Chemicals will invest €12 million in the new plant, which will have more than 11,500 m 2-floor space. The company plans to install multiple production lines at the first stage of development, which would offer an estimated capacity of 25,000 tons/year. There will be enough additional space available to cope with future demand requirements. The move is in line with the company’s global growth strategy with a strong focus on the Asia Pacific (APAC) region.

• Technology for dyeing polyester and its blends

TERASIL® BLUE W high wash fastness dye raises operational excellence of mills, providing right-first-time results leading to savings of water, energy and costs.

Huntsman Textile Effects introduces TERASIL® BLUE W, the latest addition to the TERASIL® W/WW range of wash fast disperse dyes. TERASIL® Blue W is designed to meet all major requirements for high performance sportswear and athleisure wear.

Polyester fiber has become the fiber of choice in the textile industry, the demand for polyester and man-made fibers is expected to rise over the long term, as sports and athleisure apparel markets expand around the world. At the same time, leading brands, retailers and mills are increasingly focused on achieving brilliant and deep shades, consistent shade reproducibility, as well as water, energy and cost savings.

TERASIL® BLUE W is developed by Huntsman Textile Effects to provide the leading solution for meeting industry’s wash fastness requirements. TERASIL® BLUE W offers an attractive shade and high build-up for deep blues which stays vibrant. TERASIL® BLUE W also provides quality assurance as products are bluesign® approved and suitable for STANDARD 100 by OEKO-TEX® certified textile products.

Monforts has recently been involved in a number of R&D trials aimed at improving the performance of the fishing cage nets employed in fish farming operations at its Advanced Technology Centre (ATC) in Mönchengladbach, Germany.

The cultivation of both freshwater and saltwater fish populations under controlled conditions is a global industry valued at around $200 billion annually and only made possible with the use of huge aquaculture nets.

Biofouling
“These nets are very prone to biofouling and to avoid its negative impacts, high-pressure robotic jets are now used to clean them,” explains Monforts Head of Technical Textiles Jürgen Hanel. “Net cleaning is expensive and can also damage current antifouling coatings on the nets, causing contamination as well as fish health and welfare risks.
The development of more effective antifouling coatings for fishing cage nets has been one aspect of R&D work at the Monforts ATC, while the use of how alternative fibres could potentially be coated or finished to replace the polyamide which is currently most widely used has also been explored.
The issue of plastics and synthetic fibres in the oceans has generated global media attention recently, and the aquaculture industry is exploring all avenues that will lead to more sustainable practices.

Expansions
Since its opening in 2013, over €3 million has been invested in equipment at the Monforts ATC, which over an area of 1,200 square metres houses two full finishing lines, engineered to accommodate an extremely diverse range of processes, in addition to a Thermex range for the continuous dyeing of denim.

Technology transfer that is creating waves

For more than a decade now, the Manmade Fibers segment of the Swiss Oerlikon Group has been hosting a comprehensive technology symposium at the beginning of each year in the Indian region around Silvassa/Daman. Numerous Indian manmade fiber producers have settled in this area, around a four-hour drive north of Mumbai. Fed from Oerlikon polycondensation and extrusion systems, these companies manufacture polyester, nylon and polypropylene on large-scale installations with Oerlikon Barmag WINGS POY, WINGS FDY, IDY and DTY product lines and using Oerlikon Neumag’s staple fiber and BCF technologies. Reason enough for the Manmade Fibers segment’s experts to regularly provide their clientèle with detailed specialist presentations in India on the latest developments of the product and service portfolio.

And this was once again the case at the event held at the beginning of 2020, where around 450 managers and employees from local businesses took the opportunity to exchange ideas and information. For the third time in succession, Oerlikon also entered into dialog with the next generation of managers at major Indian polyester and nylon manufacturers in a separate event hosted in Mumbai beforehand. The technology symposium was again held – for the very first time – just a few days later and in a slightly modified form at a second venue: in Kolkata in West Bengal, a potential second future key location for manufacturing manmade fibers in India according to plans revealed by the Indian government. Here, the discussions held by the Oerlikon experts focused above all on the transfer of technologies for manufacturing polyester, nylon and polypropylene. Oerlikon is able to offer the entire process chain – from the melt to the textured yarn or the fibers and including the necessary semi- and fullyautomated logistics process – from a single source. This is of interest above all for potential new customers and investors in West Bengal and neighboring Bangladesh, as some do not have decades of expertise in manufacturing manmade fibers, as is the case for most companies in the region around Silvassa/Daman.