From the Sector

Um erfolgreich zu segeln, muss alles zusammenkommen: Kraft, Ausdauer und Erfahrung des Teams, modernste Technik und bestes Material rund um das Boot. Besonders, wenn es um die Highspeed-Variante des Segelns geht, das Foilen. Durch gewölbte Tragflügel am Rumpf, die Foils, hebt sich das Boot beim Segeln aus dem Wasser, reduziert so den Wasserwiderstand und erreicht eine Spitzengeschwindigkeit von 35 Knoten bzw. 65 Kilometern pro Stunde. Die hohen Geschwindigkeiten und die raue Umgebung – Sonne, Wind und Salzwasser – stellen enorme Anforderungen an das verwendete Material. SEILFLECHTER produziert die notwendigen anspruchsvollen Seile und lässt sie von einem erfolgreichen Segler testen, Lukas Hesse.

Derzeit ist Lukas Hesse, 22 Jahre, Deutscher Meister 2020 auf der 49er Jolle, mit dem Schweizer Jann Schüpbach und der Hawaiianerin CJ Perez als „Clean Sailors Youth Racing Team“ beim 69F Youth Foiling Gold Cup am Start. Eins der fünf Rennen, die Bacardi Cup Invitational Regatta in Miami, hat das Team Mitte März auf ihrer Persico 69F gewonnen.

Das erfolgreiche Racing-Team arbeitet mit der gemeinnützigen Organisation Clean Sailors zusammen, die sich den besseren Schutz der Umwelt auf die Fahnen geschrieben hat und einen neuen Standard für sauberes Segeln innerhalb der globalen Segelgemeinschaft setzen will. Der Fokus liegt dabei auf langlebigen und performanten Materialien und dem Re- bzw. Upcycling von gebrauchtem Material. SEILFLECHTER unterstützt Clean Sailors bei diesen Vorhaben.

Lukas Hesse setzt voll auf die Top-Seile von SEILFLECHTER. Sie sind belastbar und robust und tragen so dazu bei, das Segeln umweltfreundlicher zu machen. Die Erfahrungsberichte von Lukas Hesse helfen SEILFLECHTER, die Seile kontinuierlich zu optimieren.

High-performance yarns now offer almost unlimited possibilities for replacing traditional raw materials in a vast range of technical applications. Often tailor-made, these filament yarns go way beyond the conventional idea of ‘textiles’ – finding new uses in sectors such as automotive, aviation, maritime, medical and construction, among many others.

Technical textiles are everywhere in our daily lives today, even if we may not always realize it. Some are in more obviously textile products, from sewing threads to artificial turf. But then, take cars as an example: modern vehicles are stuffed with parts made from sophisticated yarns. It’s common for producers of automotive parts now to send template material and requirement lists to Swiss Textile Machinery members, trusting their expertise and experience. Members operate development and testing centers with latest machine installations, where their experts devise customized solutions, as well as calling on the pure innovative spirit which is part of their DNA.

At the extremes
Technology drives applications beyond our current imagining in the case of Heberlein air splicers. Developed for a wide range of uses with high-strength technical fibers, they have no problems splicing aramid fibers up to 16’100 dtex, carbon up to 30’000 dtex, Dyneema up to 5’500 dtex, and glass up to 4’800 tex. Using compressed air, the splicers produce a tear-resistant, homogeneous splice of material without interfering knots.

Retech has the technology to achieve specifications for filament yarns, drawing and stretching fibers to perfection. Top heated godet rolls – many customized – are developed for high-performance fibers. Temperatures up to 400 °C can be achieved. Combining the right settings and wide speed ranges for each specific process results in unique end-products.

Fabric producers of high-end applications must avoid any quality risk. Yarn producers are well aware of this responsibility, so they use precision package winders for technical yarns, developed by Rieter’s subsidiary SSM. Taking yarns from ring twisting bobbins, its specialist finish winders can produce coarse-count technical yarns up to 50’000 dtex, offering a new level of flexibility and winding quality.

Lifestyle essentials
At first glance, motorists might fail to notice many of the technical yarns ‘hidden’ inside their cars. These products have functions such as providing stability with hardly any weight, or absorbing tensile forces at defined elongation. This kind of controlled elongation behaviour, for example, arises from the choice of textile material and the special construction of the yarns used.

Such specifications make twisting and cabling machines essential for the automotive industry. Saurer offers machines for the production of technical yarns made from a variety of feed materials in a very wide yarn count range. They are needed for vehicle products such as tire carcasses, toothed engine belts, seat belts, airbags and lorry tarpaulins.

Technical yarns also play a surprising role in our mobile devices. Tapping, scrolling and swiping are second nature for billions, with our phones and a plethora of other lifestyle essentials. Yet, how many people would know that the touch-sensitivity we take for granted on these screens is largely made possible by twisted glass fibers. Bräcker, part of Rieter’s components business, offers a selection of vertical sinter metal rings and nylon travelers for glass fiber twisting, so that mills can achieve high levels of productivity and quality.

Future unlimited
Automotive and communication technology are already important industries for Swiss Textile Machinery members, along with well-known technical textiles markets in sectors such as medical, transport and construction. Smart-wear is already noted as a field with significant potential. Naturally, members are constantly investigating other possibilities. Swiss textile machinery is already applied in energy (batteries), and plastics.

The Swiss Textile Machinery Pavilion will be at the Techtextil exhibition in Frankfurt, Germany, taking place from 21 to 24 June 2022.

• Hexcel HexPly® XF Selected for High-Quality, Paint-Ready Parts for Sunseeker 90 Ocean Luxury Yacht
• Hexcel’s innovative surface technology yields parts with paint-ready surfaces for builder of luxury yachts

Yacht builder Sunseeker has chosen Hexcel’s HexPly® XF surface technology to produce prepreg parts with high-quality, paint-ready surfaces quickly and efficiently for its 90 Ocean luxury yacht, one of its newest models.

The lightweight composite hardtop for the Sunseeker 90 Ocean yacht is manufactured from a combination of HexPly® XF and Hexcel's HexPly® SuperFIT® semi-preg. The hardtop is lighter in weight than versions made using resin-infusion processes, and it de-molds with a pinhole-free surface that needs minimal preparation to be ready for paint. Sunseeker has recorded an overall reduction in process time of around 30%, saving three days of manufacturing time per hardtop.

The hardtop provides shade and protection for the yacht’s uppermost deck space. Its reduced weight helps to ensure the stability of the vessel, and the paint-ready finish with HexPly XF provides Sunseeker with more options for customizing its color to the individual needs of its clients.
 
HexPly XF is a lightweight, non-woven semi-preg that eliminates the need to use a traditional in-mold gel coat. The innovative surface technology significantly reduces the costly and time-consuming refinishing work typically required to impart a paint-ready finish to prepreg or semi-preg parts, and yields lightweight, consistent components in short cycle times.

Working with Sunseeker, Hexcel developed a material format, a laminate ply sequence, and a production process that satisfied the structural requirements for the hardtop and enabled the yacht builder’s production team to lay up and cure the part in a single shot – slashing cycle times.

Hexcel supplies Sunseeker with a HexPly XF product that comprises both the surface layer and the first structural reinforcement ply, eliminating the need for a cosmetic barrier coat. Neither the HexPly XF surface layer nor the following layers of HexPly SuperFIT require time-consuming debulking steps – significantly reducing lay-up time – and both are based on Hexcel's rapid-curing M79 epoxy resin system. Adhesive resin films are not needed to bond the hardtop’s foam core, as the resin content of the SuperFIT plies has been adjusted to further reduce overall process time.

Once de-molded, the cured hardtops are inspected before they are passed to Sunseeker’s finishing and painting technicians for final preparation and painting. The HexPly XF resin surface allows the yacht builder’s quality technicians to inspect the laminate below quickly and easily, ensuring the quality and consistency of the structural reinforcement plies.

“Composite materials that improve our production processes, as well as great technical support, are what makes working with Hexcel such a success story," said Stuart Vaughan-Jones, Composite Development Manager, Sunseeker. "With the switch from gel coat and resin infusion to HexPly XF and SuperFIT in the new hardtops, we are now building lighter, more consistent parts, more quickly than before, with a higher quality surface finish. XF really has ticked all the boxes.”  

Garth Thomas, Account Manager – Marine, Hexcel, said: "With the HexPly XF surface technology now well established, XF will soon be used in other large moldings where minimizing weight is critical, as well as additional hardtops across the Sunseeker model range."

After three-days of product sourcing and business networking, Techtextil India 2021 in Mumbai concluded in a strong and positive note. The trade fair emerged as a crucial meeting place for the technical textile players to rebuild their supplier links, promote industry integration and engage in lucrative knowledge exchange.

The eighth edition of Techtextil India stood out to be a ground-breaking business platform for the technical textile sector to build a new and strong foundation in the new normal. The aim of the new edition was to promote industry unification and business recovery across the value chain of technical textiles.

The event held at Bombay Exhibition Centre was inaugurated by major dignitaries, including Shri Ajit Chavan, Secretary – Textiles Committee, Ministry of Textiles, Government of India. Over the course of its three buzzing days, the show garnered an attendance of 4,087 visitors drawn by live demonstration of latest products, technologies and innovations exhibited by over 150 technical textile brands on the show floor.

The event received an overwhelming response, reflecting industry’s keen interest to explore new developments and opportunities in technical textiles. In regards to the same, Mr Abhijit Kulkarni, President – Textile Engineering Group, A.T.E. India, stated: “It was the first and best physical show also on hybrid mode filled with enthusiastic buyers and customers who visited our booth and had very fruitful discussions with us. Several leading textile manufacturers visited our stalls, including: Strata Geosystems India, SKAPS Industries, Reliance Composites, Paramount Textiles, and Welspun, to name a few.”

Alok Masterbatches Pvt Ltd, Khosla Profile Pvt Ltd, ATE Group, Lucky International, Meera Industries Limited, Park Non-Woven Pvt Ltd, Sarex Chemicals, SICAM, Suntech Geotextile Pvt Ltd and Weavetech Engineers, were among the leading Indian companies exhibiting at the show.

The significance of the three-day fair was further elevated by the German pavilion. Technical textile manufacturers from Germany, such as Autefa Solution Germany GmbH, DILO Systems GmbH, Emtec Electronic GmbH, Georg Sahm GmbH & Co, Karl Mayer Verwaltungsgesellschaft mbH, Merz Maschinenfabrik GmbH and Oerlikon Barmag Zweigniederlassung der Oerlikon Textile GmbH & Co, displayed their latest technologies on the show floor, which garnered significant attention from the Indian buyers.

The first Digital Symposium was another highlight of Techtextil India 2021. The forum delved into a series of crucial topics in technical textiles discussing PLI schemes, FDI opportunities and policies, investment opportunities in Tamil Nadu, & New Investment Opportunities, Sustainable Technical Textiles and Global sustainable approach for Textiles with Antimicrobial Performance.

Concluding on a successful note, Techtextil India 2021 emerged as a platform of new beginnings for the technical textiles sector and for businesses trying to retain their shape and seeking momentum after the tough pandemic phase.

The AVK – Industrievereinigung Verstärkte Kunststoffe – has once again presented its Innovation Awards to companies, institutes and their partners. Three composites innovations were recognised in each of the three categories – “Innovative Products/Applications”, “Innovative Processes” and “Research and Science” – at the new event JEC Forum DACH on 23 November 2021, the first edition of which was held in Frankfurt.

“As usual, the submissions included a lot of very interesting and promising products and processes this year. The Innovation Awards highlight the outstanding efficiency, cost-effectiveness and sustainability of fibre-reinforced plastics as well as the companies and institutes operating in the sector,” explains Dr. Elmar Witten, Managing Director of the AVK. The jury of leading experts from the industry honoured the following innovations this year:

Category “Research and Science”
First place in the “Research and Science” category was awarded to the German Aerospace Center (DLR) for its Bondline Control Technology (BCT). This innovative process is used for quality control and assurance of bonded joints. The core element is a porous fabric which is applied to a joining surface using an epoxy adhesive or matrix resin. Peeling away the fabric creates a chemically reactive and undercut surface and can also be used as a test to check adhesion to the substrate. BCT has potential in a variety of possible applications. For example, peel ply can be replaced by BCT fabric to produce composite components with an optimised joining surface. The cost-effective BCT peel test is suitable for coupon testing and process control. In addition, the combined adhesion test and surface pre-treatment can be used for quality assurance of bonded repairs on fibre composite structures.

Second place was taken by the Institute of Textile Technology (ITA) at RWTH Aachen University and its partners AEROVIDE GmbH, Altropol Kunststoff GmbH, Basamentwerke Böcke GmbH, TechnoCarbon Technologies GbR with “StoneBlade – Lightweight construction with granite for the wind industry”. This innovation enables manufacturers to reduce the amount of non-recyclable materials used in rotor blade construction. At the same time, it reduces the weight of these components and improves the mechanical properties relating to the stability of wind turbines. The innovative approach replaces glass-fibre reinforced plastic in the blade components with hard rock – a natural, cost-effective and recyclable lightweight material. The slabs of rock are cut and ground to a thickness of just a few millimetres and embedded in a fibre composite laminate with carbon fibre, which stabilises them for alternating load cases. The pre-stressed material is pressure-stable in the composite and can absorb tensile forces in the event of continuously alternating loads without any loss of stiffness.

Third place went to the Dresden University of Technology – Institute for Lightweight Construction and Plastics Technology (ILK) with its partner Mercedes Benz AG for the interdisciplinary development of a highly integrated inductive charging module for electric vehicles. The ultra-thin charging module was designed to make optimum use of space in the vehicle underbody without reducing ground clearance. An interdisciplinary approach was adopted for the development process. This involved the electrical, mechanical and process characterisation of high-frequency Litz wires, ferromagnetic foil and metal wire cloth as well as the creation of a simulation model. The result is a demonstrator for a charging system with a structural height of 15 mm and a total weight of 8 kg. It achieves a transmission efficiency of up to 92 percent at 7.2 kW nominal power and active air cooling. The hardware demonstrator was fabricated in a 3-step process using RTM and VARI techniques.

Overview of all the winners in the three categories:
Category “Innovative Products/Applications”
1st Place: “Traffic signs from Nabasco (N-BMC)” – Nabasco Products BV and Lorenz Kunststofftechnik GmbH, partners: Pol Heteren BV and NPSP BV
2nd Place: “Novel, ultratough vinyl ester resin for the construction of large marine vessels” Evonik Operations GmbH
3rd Place: “Air intake housing with a multi-material design for gas turbines” – MAN Energy Solutions SE, Leichtbau-Zentrum Sachsen GmbH and Leichtbau-Systemtechnologien KORROPOL GmbH.
Category “Innovative Processes”
1st Place: “In-mould wrapping” off-tool, film-coated, fibre composite components for exterior applications – BMW Group, Partner: Renolit SE
2nd Place: “Adaptive automated repair of composite structural components in the aviation sector” – Lufthansa Technik AG, Partner: iSAM AG
3rd Place: “Automated surface pre-treatment using VUV excimer lamps” – CTC GmbH
Category “Research and Science”
1st Place: “Bondline Control Technology (BCT)” – German Aerospace Center (DLR)
2nd Place: “StoneBlade – Lightweight construction with granite for the wind industry” – Institute of Textile Technology at RWTH Aachen University, Partners: AEROVIDE GmbH, Altropol Kunststoff GmbH, Basamentwerke Böcke GmbH, TechnoCarbon Technologies GbR
3rd Place: “Interdisciplinary development of a highly integrated inductive charging module for electric vehicles” – Dresden University of Technology – Institute for Lightweight Construction and Plastics Technology (ILK), Partner: Mercedes Benz AG

Submissions for the next Innovation Award can be made from the end of January 2022.

India’s leading trade fair in technical textiles, nonwovens and composites, Techtextil India, is ready to make a comeback through its hybrid edition launch from 25 – 27 November 2021. With a series of live product demonstrations, insightful knowledge sessions and B2B networking opportunities, the multimodal trade fair will provide a strong avenue for technical textile professionals to reimagine their business potential.
 
After a successful grand edition in 2019, Techtexil India is all set to return for the very first time since the pandemic. The three-day exhibition will be hosted in a hybrid format from 25 – 27 November 2021, Bombay Exhibition Centre, Goregaon which will unite technical textile players from across its varied application areas. Top technical textile brands including JB Ecotex, PARK Nonwoven, Loyal Textiles Lenzing, Mehala, Meera Industries, amongst many others will showcase their latest products at the hybrid fair. Moreover, leading German brands exhibiting at Techtextil India 2021 will be hosted under the German pavilion.

The conjunction between the physical exhibition and the online business matchmaking platform will make way to a wider range of networking. Local and international visitors who are unable to attend the venue will be able to witness the exhibition virtually through the ‘MFI virtual app’ which will host live knowledge sessions and product demonstrations for visitors. The two-day multimodal trade fair allows the visitors to search for specific products like fibers, yarns, nonwovens, machinery, coated textiles with easy-to-use filters further to which they can share their query or connect directly with the respective exhibitors.

At the same time, visitors attending the venue will be welcomed under a well-organised physical exhibition following the government-authorised safety protocols of ‘MFI SafeConnect’. These protocols will enable visitors to engage in secure face-to-face interactions with exhibitors and witness the latest technical textile technologies and innovations in-person.

Alliance with the Government of Tamil Nadu
In a bid to strengthen indigenous production through the state and attract investors, the nodal agency for investment promotion and facilitation for the Government of Tamil Nadu – Guidance has signed up for Techtextil India 2021. Furthermore, technical textile players from Tamil Nadu such as Cyber Textiles India Pvt Ltd, Jayashree Spun Bond, Lenzing Ag India, Liester Technologies, Loyal Textile Mills Ltd, Milltex Engineers Pvt Ltd, Superfil Products Pvt Ltd, Uster Technologies (India) Pvt Ltd have also confirmed their participation for the exhibition.
Announcing a close co-operation with Messe Frankfurt India for the 2021 edition, Ms Pooja Kulkarni, IAS MD & CEO, Guidance Tamil Nadu, stated: “While there are several inherent advantages for the growth of technical textiles in Tamil Nadu specifically, many raw materials used in the production of sanitary products, artificial ligaments, seat belt webbings, airbags are still heavily imported. In this context, the alliance with Techtextil India Forum can help us reduce import dependency and bring investments in R&D, manufacturing, innovation by partnering with global technical textiles companies.”

With 50% of India’s textile mills in Tamil Nadu and complementary clusters of knitting, weaving and medical devices manufacturing in Coimbatore, and Tiruppur, the region provides immense opportunities for Meditech investments. Two petrochemical and refinery units – One in Cuddalore and another in Nagapattinam by CPCL is in the process of being established in Tamil Nadu. These units will enable availability of MMF raw material for the textile industry across the state. Hence, manufacturing in Tamil Nadu can be a win-win arrangement for investors as India provides access to the burgeoning market as well.

International expertise with German pavilion
Techtexil India 2021 edition will feature an exclusive German Pavilion showcasing products and technologies from top German manufacturers, including Autefa Solution Germany GmbH, DILO Systems GmbH, Emtec Electronic GmbH, Georg Sahm GmbH & Co, Karl Mayer Verwaltungsgesellschaft mbH, Merz Maschinenfabrik GmbH and Oerlikon Barmag Zweigniederlassung der Oerlikon Textile GmbH & Co.

Knopf’s Sohn, a contract finisher of technical textiles, has installed a fully automated Montex stenter at its plant in Helmbrechts, Germany.
Knopf’s Sohn is processing technical textiles for the automotive, aerospace, home furnishings and workwear markets, based on wool, cellulose, polyamide and polyester fabrics, along with elastane blends, in weights of 80-800gsm.

The Montex machinery range is constantly being upgraded to meet evolving customer needs for greater automation, ease of operation and energy optimisation. The latest ten chamber line at Knopf’s Sohn, with a working width of up to 2.0 metres, was engineered to specific requirements in order to accelerate the company’s move to fully automatic control of its production, and high scaffolding was required for its installation.

The line benefits from two integrated ECO Booster modules to provide high energy savings. These compact, air-to-air heat exchangers, installed within the roof structure of the line, exploit energy from the exhaust gas to preheat up to 60% of the incoming fresh air entering the stenter.

The use of a single ECO Booster unit has been calculated to save up to 35% in energy costs, based on fixation processes. Fully automatic operation, set at the Monforts Qualitex control unit, ensures there is no additional burden on the machine operator.

The line is powered by Exxotherm indirect heating, which practically eliminates the yellowing which can be experienced during the treatment of certain polyamide and elastane-based fabrics, and is also equipped with a Conticlean circulating air filter system for constant high drying capacity.

Software
The latest Qualitex visualisation software offers operators reliability and easy control with its full HD multi-touch monitor and slider function, dashboard function with individual adaptation to operating states and faster access to comprehensive recipe data management.

With the Monformatic control system, the exact maintenance of the dwell time in combined treatment processes (drying and heat-setting) can be monitored. When the heat-setting point is reached, the fan speed is automatically adjusted, keeping energy consumption fully under control.

• Pushing technical textile investments into the State

In a bid to strengthen indigenous production through the state and attract investors, the nodal agency for investment promotion and facilitation for the Government of Tamil Nadu – Guidance has signed up for Techtextil India 2021 – the leading International Trade Fair for Technical Textiles and Nonwovens. The TN Government will be promoting technical textile policies through both physical and virtual segments of the hybrid fair, enabling investors to set up integrated facilities. Leading technical textile players from Tamil Nadu and across the nation confirm participation for the three-day business event.
 
As one of the first major business events in India for the technical textile sector since the pandemic, Techtextil India 2021 will reunite the industry to present a strong showcase of technical textile technologies crucial for the development of India across industries such as healthcare, agriculture, construction, infrastructure, sports, apparel etc. The first hybrid edition will take place from 25 – 27 November 2021 at the Bombay Exhibition Centre in Mumbai.
 
Announcing a close co-operation with Messe Frankfurt India for the 2021 edition, the Government of Tamil Nadu further shared that it will be promoting textile policies and highlighting investment prospects at the trade fair in a bid to attract companies and investors to the state. Ms  Pooja Kulkarni IAS MD & CEO, Guidance Tamil Nadu said: “While there are several inherent advantages for the growth of technical textiles in Tamil Nadu specifically, many raw materials used in the production of sanitary products, artificial ligaments, seat belt webbings, airbags are still heavily imported. In this context, the Techtextil India Forum can help us reduce import dependency and bring investments in R&D, manufacturing, innovation by partnering with global technical textiles companies.

The 2022 edition of Cinte Techtextil China has been confirmed to take place from 6 – 8 September at the Shanghai New International Expo Centre. 2021 saw 366 exhibitors and 14,868 visits recorded at the June hybrid event, which offered in-person and digital options for suppliers and buyers.

This year’s edition of Cinte Techtextil China marked the first time the fair was held annually, and the second year physical and online participation options were available, with both aspects well received by exhibitors and visitors.

Ms Wendy Wen, Senior General Manager of Messe Frankfurt (HK) Ltd elaborated: “The response from our exhibitors this year was the Chinese market is still growing strongly, and having an annual edition allows them to benefit from these opportunities on a more regular basis. The domestic economy has shown strong resilience over 2020 and so far in 2021, and this has allowed the technical textiles and nonwovens sector to maintain the growth momentum it has experienced over the past years. As more economies return to normal in 2022, we expect export orders for the sector to receive a further boost which will benefit those overseas companies with business in the Chinese market.”

Cinte Techtextil China’s product categories cover 12 application areas, which comprehensively span the full range of potential uses of modern technical textiles and nonwovens. These categories also span the entire industry, from upstream technology and raw materials providers to finished fabrics, chemicals and other solutions.

• Fraunhofer, SABIC, and Procter & Gamble join forces
• The Fraunhofer Cluster of Excellence Circular Plastics Economy CCPE and its Institute for Environmental, Safety and Energy Technology UMSICHT have developed an advanced recycling process for used plastics.
• The pilot project with SABIC and Procter & Gamble serves to demonstrate the feasibility of closed-loop recycling for single-use facemasks.

Due to COVID-19, use of billions of disposable facemasks is raising environmental concerns especially when they are thoughtlessly discarded in public spaces, including - parks, open-air venues and beaches. Apart from the challenge of dealing with such huge volumes of essential personal healthcare items in a sustainable way, simply throwing the used masks away for disposal on landfill sites or in incineration plants represents a loss of valuable feedstock for new material.

“Recognizing the challenge, we set out to explore how used facemasks could potentially be returned into the value chain of new facemask production”, says Dr. Peter Dziezok, Director R&D Open Innovation at P&G. “But creating a true circular solution from both a sustainable and an economically feasible perspective takes partners. Therefore, we teamed up with Fraunhofer CCPE and Fraunhofer UMSICHT’s expert scientists and SABIC’s Technology & Innovation specialists to investigate potential solutions.”

As part of the pilot, P&G collected used facemasks worn by employees or given to visitors at its manufacturing and research sites in Germany. Although those masks are always disposed of responsibly, there was no ideal route in place to recycle them efficiently. To help demonstrate a potential step change in this scenario, special collection bins were set up, and the collected used masks were sent to Fraunhofer for further processing in a dedicated research pyrolysis plant.

“A single-use medical product such as a face mask has high hygiene requirements, both in terms of disposal and production. Mechanical recycling, would have not done the job”, explains Dr. Alexander Hofmann, Head of Department Recycling Management at Fraunhofer UMSICHT. “In our solution, therefore, the masks were first automatically shredded and then thermochemically converted to pyrolysis oil. Pyrolysis breaks the plastic down into molecular fragments under pressure and heat, which will also destroy any residual pollutants or pathogens, such as the Coronavirus. In this way it is possible to produce feedstock for new plastics in virgin quality that can also meet the requirements for medical products”, adds Hofmann, who is also Head of Research Department “Advanced Recycling” at Fraunhofer CCPE.

The pyrolysis oil was then sent to SABIC to be used as feedstock for the production of new PP resin. The resins were produced using the widely recognized principle of mass balance to combine the alternative feedstock with fossil-based feedstock in the production process. Mass balance is considered a crucial bridge between today’s large scale linear economy and the more sustainable circular economy of the future, which today is operated on a smaller scale but is expected to grow quickly.

“The high-quality circular PP polymer obtained in this pilot clearly demonstrates that closed-loop recycling is achievable through active collaboration of players from across the value chain”, emphasizes Mark Vester, Global Circular Economy Leader at SABIC. “The circular material is part of our TRUCIRCLE™ portfolio, aimed at preventing valuable used plastic from becoming waste and at mitigating the depletion of fossil resources.”

Finally, to close the loop, the PP polymer was supplied to P&G, where it was processed into non-woven fibers material. “This pilot project has helped us to assess if the close loop approach could work for hygienic and medical grade plastics”, says Hansjörg Reick, P&G Senior Director Open Innovation. “Of course, further work is needed but the results so far have been very encouraging.”

The entire closed loop pilot project from facemask collection to production was developed and implemented within seven months. The transferability of advanced recycling to other feedstocks and chemical products is being further researched at Fraunhofer CCPE.