From the Sector

DSM, the inventor and manufacturer of Dyneema®, will be exhibiting at one of the leading events for homeland security and safety, Milipol Paris 2021, from October 19-22.

The performance characteristics of Dyneema® make it ideal for a variety of applications, including soft and hard armor ballistics to protect against today’s advanced and emerging threats. In addition, Dyneema® combines next-generation fiber technology and unidirectional engineering to deliver armor solutions with unmatched ballistic stopping power in a lightweight and flexible composite.

By implementing Dyneema®, body armor manufacturers are able to use less material in the development of their ballistic vests, plates and helmets. This leads to weight savings upwards of 30 percent when compared to competitive materials, without impacting ballistic performance. The lightweight construction of armor made with Dyneema® also mitigates injuries associated with the cumulative effects of daily armor use – while improving situational awareness, as well as cognitive and tactical performance.

While decreasing the load on the wearer, Dyneema® is simultaneously able to reduce the impact of material manufacturing on our planet. In line with DSM’s commitment to protect people and the environment they live in, we have developed the first-ever bio-based ultra-high molecular weight polyethylene fiber and unidirectional (UD) material. Bio-based Dyneema® boasts the same exact performance as conventional Dyneema® with a carbon footprint that is 90 percent lower than generic HMPE.

Vom Biomasseanbau und der energetischen Nutzung über das Herstellen von Zwischenprodukten bis hin zum Verwenden biogener Ressourcen in langlebigen Verbraucherprodukten: die Bioökonomie umgibt uns schon heute tagtäglich. Doch welche Innovationen zeichnen sich ab, um die Wirkung biogener Ressourcen im Sinne des Klimaschutzes zu maximieren? Das war Thema beim Online-Werkstattgespräch Bioökonomie der Zuse-Gemeinschaft am 6. Oktober.

CO₂ einsparen durch biogene Schäume und Fasern für den Auto-Innenraum
Wie textile Anwendungen aus der Bioökonomie verstärkt in einem Schlüsselbereich der Energiewende - der Mobilität - zum Zuge kommen können, berichtete Dr. Frank Meister, Abteilungsleiter Chemische Forschung beim Thüringischen Institut für Textil- und Kunststoff-Forschung (TITK) anhand des von der Europäischen Union geförderten Projekts BioMotive.

Das TITK ist dort eingebunden in die Entwicklung biogener Fasern und neuer Leichtbauwerkstoffe für den Auto-Innenraum, wo sie z.B. für Sitze, Armaturenbrett oder Türinnenverkleidung gebraucht werden. Unter anderem entwickelten die Forschenden neue sogenannte Lyocellfasern aus modifizierten Papierzellstoffen. Der besondere Vorzug am TITK: An dem Thüringer Institut konnten die neu entwickelten Fasern in einer kleintechnischen Versuchsanlage im Maßstab von mehreren 100 kg hergestellt werden. Das erhöht die Vergleichbarkeit mit den Realitäten der Industrie und war Design-Basis für eine unlängst errichtete Demo-Anlage der Metsä-Tochter MI Demo im finnischen Äänekoski. „Lyocellfasern als biogener Werkstoff vermeiden Umweltbelastungen wie sie bei anderen Materialien durch die Risiken von Mikroplastik entstehen. Hinzu kommt als Klima-Plus: Durch die von uns mit entwickelten und bewerteten Fasern und Verfahrensprinzipien lässt sich der CO₂-Fußabdruck bei der Produktion von Fahrzeugen spürbar verringern“, erklärt Meister.

Kombination von CO₂-Elektrolyse und Biotech-Wertstoffsynthese
Dass mithilfe von Bioökonomie-Lösungen CO₂ nicht nur eingespart werden kann, sondern auch negative Emissionen des Klimagases erreichbar sind, deutete Dr. Markus Stöckl vom DECHEMA-Forschungsinstitut (DFI) an. In seinem Vortrag „Mit Strom und CO₂ zum Biokunststoff“ zeigte er auf, wie die Elektrolyse dazu genutzt werden kann, Erneuerbare Energien „lagerbar“ zu machen. Der Ansatz: Aus Kohlendioxyd so genanntes Formiat zu produzieren, das als Feststoff lagerbare Salz der Ameisensäure, das Mikroorganismen als Energie- und Kohlenstoffquelle dienen kann, die wiederum daraus den Biokunststoff Polyhydroxybutyrat (PHB) herstellen. Durch die elektrochemische Herstellung des Zwischenprodukts Formiat können unterschiedliche Mikroorganismen eingesetzt werden.

Stark steigende Baustoffpreise, immer knapper werdende Rohstoffe sowie steigende Preise für CO2-Zertifkate und Strom erhöhen den Druck, klimafreundliche und doch wettbewerbsfähige Produkte zu verwenden und innovative Produkte, Verfahren und Prozesse dafür zu entwickeln.

Für diese Herausforderungen im Bauwesen bietet der Leichtbau mit Faserverbundwerkstoffen neue Lösungen und ein enormes Anwendungspotential. Bisher sind diese Werkstoffe im Bauwesen noch nicht in ausreichendem Umfang etabliert und bei vielen Entscheidern noch nicht Teil der Lösung. Deshalb treibt das Fachnetzwerk CU Bau des Composites United e.V. (CU) als nationale und internationale Plattform dieses Thema für seine Mitglieder aus Industrie und Wissenschaft voran.

Hybride Bauweisen
Roy Thyroff, im Netzwerk Composites United e.V. Geschäftsführer CU Bau: „Unser Ziel ist, dass die gesamte Bauwirtschaft – Architekten, Planer, Bauingenieure, Zulassungsstellen sowie Bauunternehmen – Bauprodukte mit faserverstärkter Beton- und Polymermatrix mit entsprechenden Zulassungen einsetzen kann.“ Dabei geht es nicht nur um Bauweisen mit faserverstärkten Kunststoffen und textilbewehrtem Beton, sondern darüber hinaus auch um hybride Bauweisen, wie z.B. Hybridbauwerke aus Holz und Carbonbeton. Denn faserbasierter, hybrider Leichtbau führt die besten Eigenschaften verschiedener Materialien klimafreundlich zusammen, bietet somit gegenüber herkömmlichen Baustoffen große Vorteile für den Klimaschutz und ermöglicht völlig neue Bauweisen.

Vorteile von Faserverbundwerkstoffen
Faserverbundwerkstoffe sind sowohl im Neubau als auch in der Sanierung dank ihrer umwelt- und ressourcenschonenden Eigenschaften im Vorteil. Neben der CO2-Reduktion liegen die wesentlichen Vorteil:

• in der Geschwindigkeit der Ausführung,
• dem geringeren Materialeinsatz,
• der Kostenreduktion,
• der Leistungsfähigkeit wie hoher Druck- und Biegezugfestigkeit,
• dem einfacheren Handling
• den geringeren Transportlasten,
• der Beständigkeit gegen Korrosion,
• der Flexibilität bei unterschiedlichen Schädigungsgraden eines Sanierungsfalls und
• der deutlich verlängerten Nutzungsdauer.

Lenzing presented at FILO its sustainable approach and on a selection of key innovations such as TENCEL™-branded specialty fibers.

As part of the space dedicated to Cittadellarte – Fondazione Pistoletto and Fashion B.E.S.T., the first Italian collective of responsible fashion designers, a selection of TENCEL™’s key technologies were under the spotlight:

• TENCEL™ x REFIBRA™, using cotton textile waste and wood pulp as the feedstock for cellulosic fibers, creating a circular solution;
• TENCEL™ x Indigo Color, infusing pigment into fibers directly during the spinning process;
• TENCEL™ Luxe, providing superior aesthetics, performance and comfort to be the perfect partner of other noble fibers such as silk, cashmere or wool;
• TENCEL™ Carbon Zero, offering carbon-zero CarbonNeutral®-certified products by Natural Capital Partners;
• TENCEL™ x Eco Clean, bringing totally chlorine-free-bleached TENCEL™ Modal fibers to the textile industry.

Lenzing's priority has been to produce fibers for many sectors (fashion, beauty care, cleaning, hygiene and home textiles) in a sustainable way. Each Lenzing product is made of cellulose from wood, a renewable natural resource, coming only from certified sustainable sources.
The Lenzing Group operates two commercial-scale biorefineries with 100% wood utilization, which ensure that the totality of wood constituents are used to produce fibers, biobased chemicals, and bioenergy, thus maximizing value creation from an economic and environmental perspective. This concept was illustrated by Carlo Covini, Lenzing Business Development Manager Italy & Switzerland, in his presentation “Lenzing’s biorefinery concept”.

Suominen has successfully developed HYDRASPUN® Aquaflo, a moist toilet tissue with even better dispersibility. HYDRASPUN® Aquaflo offers near parity dispersion with dry toilet tissue but with premium thickness for a better consumer experience in use.

Suominen’s new flushable nonwovens substrate, HYDRASPUN® Aquaflo passed the stringent standards for dispersibility set by both the International Water Services Flushability Group (IWSFG) and INDA/EDANA (GD4) in independent testing.

“We are extremely proud to launch HYDRASPUN® Aquaflo. Its 100% cellulosic fiber composition is evidence of sustainable origins and its capability to fully and rapidly break down in wastewater provides biodegradability in disposal, giving consumers an end-to-end eco-friendly solution for personal care. Dry toilet tissue is recognized as the material most capable of breaking down in sewer systems and HYDRASPUN® Aquaflo was developed with this result in mind, “says Andrew Charleston, Manager, Category Management, Americas.

Global energy consumption reached a record high in 2019, following a 40-year trend for rapidly increasing energy demand that was only halted by the Coronavirus pandemic. It’s estimated that more than 80 % of this energy is still generated from fossil fuels that produce CO2 emissions and contribute to climate change. Renewable energy offers a solution to this problem, but saving energy whenever possible is an even more effective approach. That are the motives for Trützschler to develop the intelligent card TC 19i, which sets a new benchmark for energy-efficient carding.

The intelligent Trützschler card TC 19i features the unique T-GO gap optimizer, which continuously and automatically monitors and adjusts the carding gap to an ideal position during production. Innovative drive- and air technology further reduce energy consumption of the TC 19i.

The most energy-intensive elements in a carding machine are the drive, the dust suction process and the compressed air system. Permanent suction is needed to remove dust and cotton waste in key places. Smart optimization of these areas has made the intelligent card TC 19i a benchmark for energy efficiency in carding because it uses less electricity, lower suction pressure and less compressed air than other machines, while providing the highest production rates currently available on the market.

In a head-to-head comparison between the TC 19i and a high-performance card from a competitor, the TC 19i consumed at least 10 % less energy per kilogram of material produced when manufacturing rotor yarn from a cotton and cotton waste mix. The compared energy values included electric power consumption and energy required for suction and compressed air and were measured in both cards at the same production of 180 kg/h. A 10 % reduction in energy per kilogram of sliver produced, as proven here by TC 19i, can have a significant impact on a spinning mill’s profitability; annual savings worth a five-digit sum are frequently possible, depending on factors such as the output of the mill. The customer trial also showed TC 19i’s excellent reliability at the customer’s usual production rate of 180 kg/h, and even demonstrated stable performance at 300 kg/h in the same application. Because the TC 19i with T-GO gap optimizer realizes maximum production rates at no compromise in quality, manufacturers can reduce their energy demand and investment costs drastically: Less machines are needed to achieve the desired output, and energy consumption per production is reduced.

This improvement was made possible by a long and sometimes challenging innovation process involving mathematical models of air flows, as well as flow simulations and prototypes. By combining the final flowoptimized parts in the TC 19i, Trützschler’s experts have developed a card that operates with suction pressure of just -740 Pa and with an air requirement of only 4200 m³/h. This translates into 40 % less energy demand for air technology compared to the latest high-performance competitor model.

Lenzing will be at the 56th edition of FILO, taking place on September 29 and 30, in Milan, with its TENCEL™ fiber. Sustainability and ethical values will be the main focus of the event.

Furthermore, to delve deeper in the sustainable approach that drives Lenzing's production processes, on September 30, at 3.00 PM, a presentation with the title "Lenzing's biorefinery concept" will be held by Carlo Covini, Lenzing – Business Development Manager Italy & Switzerland. This will be part of the Dialoghi di Confronto segment set near the Networking Area.

• Asahi Kasei Corporation markets premium stretch fiber under the brand of ROICA™, with superior performance features enabled by integrated production from raw material to yarn based on its advanced technology.
• The specialized global holding operates its global ROICA™ business having production sites in Japan, Thailand, Taiwan, China, and Germany with strategic sales facilities around the world.

With deep regret, Asahi Kasei has taken the decision to restructure its production strategy in order to face the new, unexpected and critical market situation. As part of this process, the production and sales of ROICA™ at its German subsidiary, Asahi Kasei Spandex Europe GmbH in Dormagen, will be discontinued by March 31, 2022.
 
Recognizing the paramount importance of the European market, especially when it comes to smart innovation where ROICA™ is a leader, and with the goal of continuing the excellent longtime work with valued partners, customers and supply chains, Asahi Kasei will continue to develop sales, technical and marketing services in Europe through Asahi Kasei Europe, the European regional headquarters of the Asahi Kasei Group. It will especially focus on ROICA™ added value products manufactured at its ROICA™ production sites in Asia.
 
Through this process, Asahi Kasei will reshape the efficiency and productivity of its global ROICA™ operation by keeping a strong focus on responsible innovation and sustainability in close communication, and safeguarding its business partners.
 
As a manufacturer of superior quality, highly functional and sustainable ROICA™ products, Asahi Kasei will continue its journey of responsible innovation aiming to provide solutions to the textile industry and to contemporary consumers, by enhancing production capabilities and expertise at the global sites supported by an expert, wise and efficient company.

ROICA™ by Asahi Kasei, specialized in sustainable premium stretch fibers, and Bemberg™, a fiber made from the smart-tech transformation of cotton linters pre-consumer materials and converted through a traceable and transparent closed loop process, have been invited to showcase at Filo, the international fair of orthogonal weaving yarns for clothing and furnishings, circular knitwear and technical textiles from the 29-30th of September.

ROICA™ will show its main innovations and four key pieces of the modern and sustainable contemporary wardrobe able to enhance the versatility of the fibers, applied to fashion, sportswear, legwear and underwear.
The brand will also be the protagonist of “The contemporary consumer: Stretch your imagination with ROICA™ by Asahi Kasei smart innovation” speech on September 30th, 11am, organized by the fair to tell its sustainable story.

Bemberg™ will be at Filo showing some selected fabric innovation, and three responsible-driven designers representing different and complementary part of contemporary consumer wardrobe: ZEROBARRACENTO, Maurizio Miri and WAXEWUL.
Bemberg™ will be also involved in two speeches – entitled “Il viaggio di Bemberg™ by Asahi Kasei verso una moda contemporanea, premium e responsabile” - organized by the fair (Sept. 29th and 30th at 4pm), where it will share its story made of creation, production and process, as well as product performance, aspects related to sustainability and circular economy approach.

Not only since 2021 has sustainability been a topic high on society’s agenda. And yet the importance of sustainability for consumers and companies has once again increased sharply as a result of the Corona pandemic, as numerous studies confirm. Then why is it often so difficult to implement this conviction in everyday life? One of the biggest obstacles to sustainable consumer behaviour is the lack of availability of alternatives.

In addition to changing consumer demands, the EU Commission's recent decision on the single-use plastics directive is also prompting many nonwovens manufacturers to look at alternative solutions. Kelheim Fibres is exhibiting at this year's INDEX in Geneva and online with bio-based fibers that offer an alternative to synthetic materials in a wide range of applications. The Bavarians have decades of experience in the nonwovens and hygiene sectors and work on individual customer-specific innovations.

"We want to make it easy for consumers to choose an environmentally friendly option. That’s the case when bio-based solutions offer the same performance as synthetic products," said Matthew North, Commercial Director at Kelheim Fibres." Our fibre technology allows us to create just that: unlike natural fibres, which are available already in fibre form and can only be treated on the surface, we can engineer the properties of our fibres they need for specific applications by specifically intervening in the production process. That way we combine nature - our fibres are made of wood pulp - with performance."

Kelheim's special fibres are made of wood pulp from sustainably managed sources, are produced in Kelheim in an environmentally friendly way and are fully biodegradable at the end of their product life. Kelheim Fibres is the first viscose fibre manufacturer in the world with an EMAS validated Environmental Management System and was awarded a dark green/light green shirt in the most recent Canopy HotButton-Ranking.