From the Sector

More than 350 million tons of plastic are produced worldwide every year, and vast amounts of plastic waste simply end up in the environment. The circular economy offers enormous potential for keeping plastics in the loop and thus conserving resources and the environment. Since 2018, six Fraunhofer institutes in the Fraunhofer CCPE cluster have been researching how to make the plastics value chain circular, and Prof. Manfred Renner has been the new head of the cluster since August 2022. Research results, implementation projects and strategies to accelerate the transformation to a circular plastics economy will be presented by Fraunhofer CCPE at the first international Fraunhofer CCPE Summit on February 8 and 9, 2023 in Munich.

In a circular plastics economy, resources can be saved, products can be intelligently designed for long service life, and end-of-life losses can be reduced. Systemic, technical and social innovations are needed to make the transition from a linear to a circular economy a success. This is what the Fraunhofer Cluster of Excellence Circular Plastics Economy CCPE is researching in the three divisions “Materials”, “Systems” and “Business”. The cooperation of the six Fraunhofer institutes IAP, ICT, IML, IVV, LBF and UMSICHT enables a multi-stakeholder approach in which the appropriate R&D competencies are bundled.

Fraunhofer CCPE would like to present and discuss successful projects and research approaches on an international scale at the Fraunhofer CCPE Summit on February 8 and 9, 2023 in Munich. The summit is to become an international forum for exchanging ideas for solutions and innovations for a circular plastics economy.

Cross-industry collaboration - local, regional and international
Since August 2022, Prof. Manfred Renner, Institute Director of Fraunhofer UMSICHT, is the new head of Fraunhofer CCPE. He succeeds Prof. Eckhard Weidner, who has retired. “Cross-industry cooperation - very local, but also regional and international - is the elementary prerequisite for a functioning circular plastics economy. At the summit, players from all points of the compass will meet and network in order to rethink the plastics value chain together," explains Prof. Manfred Renner, adding, “We want to provide answers to the following questions:  How can we make all Circular Economy principles, i.e. the ten R-strategies, known? How can industry, science and society best cooperate in a transformation to a circular plastics economy for the greatest possible impact?”

Results of the Fraunhofer CCPE cluster so far are innovative approaches for circular business models, intelligent collection, sorting, and recycling technologies, but also new formulations for circular polymers and compounds to enable multiple recycling cycles. With the newly developed assessment tool CRL® , companies can, for example, self-assess the maturity of products or product systems with regard to the circular economy. The tool checks the extent to which a product already takes into account circular economy principles in the areas of product design, product service system, end-of-life management and circular economy, and where there is still potential for improvement.

• Monomaterial solution contains renewably-sourced polypropylene from the Bornewables™ portfolio of circular polyolefins
• Trexel employs its proprietary MuCell® technology to deliver a range of lightweighting benefits
• EverMinds™ in action: reuse and design for recycling are focus of value chain collaboration

Borealis and Trexel, an expert in foaming injection and blow moulded parts, announce that they have co-developed a new plastic bottle based on a grade from the Bornewables™ portfolio of polyolefins made using renewable feedstocks derived 100% from waste and residue streams. The lightweight bottle – which will be showcased at the Borealis stand at the K 2022 (from 19 to 26 October 2022 in Düsseldorf) – is reusable and fully recyclable. It boasts a significantly lower overall CO₂ footprint because it is composed of renewably-sourced feedstock and produced in the foaming process.

The Bornewables™ portfolio of circular polyolefins helps reduce the carbon footprint while offering material performance equal to virgin polymers. Using Bornewables grades allows for design freedom and colour flexibility, and helps retain a premium look and feel. The grades – which are commercially available in Europe – help conserve natural resources because they are derived solely from waste and residue streams, for example from used cooking oil. Reusing waste already in circulation instead of fossil fuel-based feedstocks enhances the sustainability of applications made using the Bornewables grades.

The reusable new bottle developed by Borealis and Trexel retains its value over many life cycles thanks to the use of Trexel’s proprietary technology in tandem with Bornewables grades; as a material solution, the new bottle minimises the use of valuable raw materials. Moreover, converters consume less energy in the production process when using the MuCell® technology. The bottle thus helps close the loop on plastics circularity by way of design for recycling, the use of renewable feedstocks, and excellent material performance across multiple life cycles.

• Aims to tackle the immense textile waste generated in urban environments, on the back of import bans of waste materials
• Addresses the shortcomings of current textile recycling technologies, which are unsuitable for urban settings due to the use of heavy chemicals
• Technologies developed by the newly-formed RGE-NTU Sustainable Textile Research Centre will be test-bedded in RGE’s pilot urban-fit textile recycling plant, projected for completion as early as 2024

Royal Golden Eagle (“RGE”), a global group of resource-based manufacturing companies, which includes a world-leading viscose fibre producers Sateri and Asia Pacific Rayon (APR), is developing urban-fit, closed-loop textile-to-textile recycling solutions, through the newly-formed RGE-NTU Sustainable Textile Research Centre (RGE-NTU SusTex). This is a five-year research collaboration between RGE and Nanyang Technological University, Singapore (“NTU”), to accelerate innovation in textile recycling that can be deployed in urban settings. The research centre will develop new technologies to recycle textile waste into fibre and create new, next-generation eco-friendly and sustainable textiles.

This move comes on the back of the tightening of waste import bans in countries such as China, India and Indonesia, which are among the world’s largest waste processors. The stricter import bans have left cities in need of viable local textile recycling solutions to tackle the immense textile waste generated.

RGE Executive Director, Mr Perry Lim, said, “Current textile recycling technologies, which rely primarily on a bleaching and separation process using heavy chemicals, cannot be implemented due to environmental laws. At the same time, there is an urgent need to keep textiles out of the brimming landfills.” He added, “As the world’s largest viscose producer, we aim to catalyse closed-loop, textile-to-textile recycling by developing optimal urban-fit solutions that can bring the world closer to a circular textile economy.”

Globally, an estimated 90 million tonnes of textile waste is generated and disposed of every year, with less than 1% being upcycled into new clothing or other textile materials. By 2030, the amount of global textile waste, which currently accounts for almost 10% of municipal solid waste, is expected to reach more than 134 million tonnes. The textile industry is also responsible for 10% of global greenhouse gas emissions – more than international flights and maritime shipping combined.

At present, most of the available textile recycling technologies are open-loop, where textile waste is typically downcycled to lower-quality products (insulating materials, cleaning cloths, etc.) or be used in waste-to-heat recycling.

“Closed-loop textile-to-textile recycling processes, particularly chemical recycling, are still under development. Scaling up the technologies to industrial scale remains a challenge. A key bottleneck is that refabricating textile waste into fibre needs purity standards for feedstock. However, most of the clothes that we wear are made of a mixture of different synthetic and natural fibres, which makes separating the complex blends of materials challenging for effective recycling.

“Our aim is to address this industry pain point by developing viable solutions that use less energy, fewer chemicals and produces harmless and less effluents, and then potentially scale up across our global operations,” Mr Lim said.

To tackle the key challenges in closed-loop textile recycling, RGE-NTU SusTex is looking into four key research areas, namely cleaner and more energy efficient methods of recycling into new raw materials, automated sorting of textile waste, eco-friendly dye removal, and development of a new class of sustainable textiles that is durable for wear and, at the same time, lends itself to easier recycling.

Technologies developed by RGE-NTU SusTex will be test bedded at RGE’s pilot urban-fit textile recycling plant in Singapore, which is projected for completion as early as 2024. If successful, RGE has plans to replicate the plant in other urban cities within its footprint.

Indorama Ventures Public Company Limited (IVL), a global sustainable chemical company, announced its commitment to science-based targets by the Science Based Targets initiative (SBTi) to help drive its ambitious sustainability programs. The company will also participate in the SBTi Expert Advisory Group for the chemicals industry.

SBTi is a collaboration between CDP, the United Nations Global Compact, the World Resources Institute, and the World Wide Fund for Nature to help businesses set emissions reduction targets based on the most recent climate science. IVL has committed to science-based targets under its purpose of “Reimagining chemistry together to create a better world” which aims to reduce global warming in line with the 1.5°C Paris Climate Agreement.

Under its Vision 2030 ambition, Indorama Ventures aims to build on its global industry leadership in sustainability, including by reducing GHG intensity by 30% and increasing renewable electricity consumption to 25%. Green projects are helping the company to achieve its operational efficiency targets, increase its use of renewable energy (especially renewable electricity – both onsite generation and offsite procurement through power purchase agreements), implement new decarbonization technologies including carbon capture, introduce bio-feedstock to its petrochemical value chain, and expand its PET recycling capability.

To meet its targets, IVL recognizes the importance of collaboration between the public and private sectors to decarbonize its operations through a variety of strategies. The established targets help its customers and suppliers to achieve their own sustainability goals, particularly their science-based targets.

Yash Lohia, Chairman of ESG Council at Indorama Ventures, said, "We are pleased to make our sustainability commitment more practical and measurable through science-based targets. We are dedicated to finding new technologies that can transform our operations and products towards net-zero. The efforts are not only for our sustainable business but also to support our customers and suppliers to achieve their own sustainability goals."

• Exceptional achievement of research work on the use of Nuclear Magnetic Resonance (NMR) spectroscopy for understanding PET depolymerization enzymes

Carbios (Euronext Growth Paris: ALCRB), a pioneer in the development of enzymatic solutions dedicated to the end-of-life of plastic and textile polymers, announces the publication of an article entitled “An NMR look at an engineered PET depolymerase” in the scientific journal Biophysical Journal.

The article describes the use of Nuclear Magnetic Resonance (NMR) spectroscopy to study the thermal stability of PET depolymerization enzymes and the mechanism of adsorption of the enzyme on the polymer. This innovative approach, which required months of development, is a world first and opens up new ways of improving these enzymes. This publication confirms Carbios' international lead in the development of the most efficient enzymes for the depolymerization and recycling of plastics.

Prof. Alain Marty, Chief Scientific Officer of Carbios and co-author of the article, explains: “ Nearly 25 researchers are currently working on our unique enzymatic technology. It is based on academic collaborations with the world's leading experts in their fields..”

Dr. Guy Lippens, CNRS Research Director and co-author of the artcle, adds: “Nuclear Magnetic Resonance (NMR) is an extraordinary biophysical technique for visualizing an enzyme directly in solution. Our study is the first to use NMR as a complementary technique to crystallography and molecular modeling to observe a PETase. This gives new perspectives to better understand the functioning of these enzymes and it makes it possible to imagine new ways of improving these enzymes. ”

The adidas TERREX HS¹ is one of the first knitted products to be made in part with Spinnova technology. At least 30% of the fabric in this mid-layer hiking hoodie comes from wood-based SPINNOVA® fibres (other fibres)* and 70% from cotton (organic).

Adidas is committed to helping End Plastic Waste via a three-loop strategy that consists of using recycled materials, materials that can be made to be remade and in the case of Made with Nature, products created in part with natural ingredients, such as the adidas TERREX HS¹.  

The first product to emerge from this partnership, the adidas TERREX HS¹ mid-layer is a piece of multi-functional gear that works on the trails and then rolls up into its hood for easy storage or to create a pillow on longer adventures. It was designed using UNITEFIT – an all-gender fit system created with a spectrum of sizes, genders, and forms in mind.

Made in part with Spinnova technology , a minimum of 30% of the fabric in the adidas TERREX HS¹ comes from wood-based SPINNOVA® fibres (other fibres)* that are made by grinding wood pulp with water into a paste and then spun into a textile fibre.

The product also works with the material’s natural color. Since no dyeing or bleaching is applied, in turn this uses less water compared to the standard dyeing process.

* (Rayon) in US, (New type of cellulose fibre) in China

The ReHubs initiative brings together key European and world players to solve the European textile waste problem by transforming “waste” into a resource, and to boost textile circular business model at large scale.

This collaboration is set to turn the societal textile waste issue into a business opportunity and to fulfil the EU ambitions of the Green Deal, of the mandatory texile waste collection by end 2024 and the transition into Circular Economy.

In 2020 EURATEX launched the ReHubs initiative to promote collaboration across the extended textile value chain and considering all perspectives on chemicals, fibers making, textiles making, garments production, retail and distribution, textiles waste collection, sorting and recycling.

In June 2022 ReHubs completes a Techno Economic master Study (TES) which researches critical information on the feedstock (textile waste) data, on technology, organizational and financial needs to recycle 2.5 million tons of textile waste by 2030 and to effectively launch the ReHubs.

EURATEX’s ReHubs initiative plans to pursue fiber-to-fiber recycling for 2.5 million tons of textile waste by 2030
According ReHubs Techno Economic Master Study (TES), the textile recycling industry could generate in Europe around 15,000 direct new jobs by 2030, and increase need for nearshoring and reshoring of textile manufacturing.

The textile recycling industry in Europe could reach economic, social and environmental benefits for €3.5 billion to €4.5 billion by 2030
“Transform Waste into Feedstock” announced as first project supported by the ReHubs, and aiming at building up a first 50,000 tons capacity facility by 2024.

Europe has a 7-7.5 million tons textile waste problem, of which only 30-35% is collected today.  

Based on the ambitious European Waste law, all EU Member States must separately collect the textile waste in 2 years and half. While some countries are designing schemes to face the waste collection challenge, currently no large-scale plan exist to process the waste.

The largest source of textile waste (85%) comes from private households and approximately 99% of the textile waste was made using virgin fibers.

Euratex  assesses that to reach a fiber-to-fiber recycling rate of around 18 to 26 percent by 2030, a capital expenditure investment in the range of 6 billion € to 7 billion € will be needed, particularly to scale up sufficient sorting and processing infrastructure. The economic, social, and environmental value which could be realized, potentially total an annual impact of €3.5-4.5 billion by 2030.

Once matured and scaled, the textile recycling industry could become a profitable industry with a total market size of 6-8 billion € and around 15,000 direct new jobs by 2030.

Next steps of the ReHubs initiative

• A European textile recycling roadmap proposing Objectives and Key Results to recycle fiber-to-fiber 2.5 million of textile waste by 2030
• A leading collaboration hub with large players and SMEs from across an extended European textile recycling value chain
• A first concrete portfolio of 4 launching projects:
  - Transform textile waste into feedstock
  - Increase the adoption of mechanically recycled fibers in the value chain
  - Expand capacity by solving technical challenges for thermo-mechanical textiles recycling
  - Create capsule collection with post-consumer recycled products

The 1^st project addresses current sorting technologies which have limits to identify materials with sufficient accuracy for the subsequent circular recycling processes. The “Transform Waste into Feedstock” project will focus on further developing and scaling such sorting technologies. The project group led by Texaid AG aims on building up a first 50,000 tons facility by the end 2024.

The sustainable collaboration and innovation between Indorama Ventures (IVL), Auping and TWE Group presented a certified cradle to cradle process for mattress components across nonwoven applications, at Techtextil, Frankfurt, 21st to 24th June 2022.

Using circular research and design, the industry partnership between IVL Mullagh (Ireland), Auping and TWE Group has resulted in a perpetual, sustainable economic business model, for manufacturers globally. The inclusion of safe raw materials within mattress manufacturing allows the materials to be easily disassembled at the product’s end of use in order to be further reused as same components or recycled into new raw material at the same quality level, to enable versatile textile applications.

Designed for disassembly to optimize the use of existing resources, reduce carbon footprint and support customer objectives all along their customers’ supply chain. This circular industry collaboration begins with design, where the mattress is constructed using only two different base materials, 100% PET polyester textiles and steel wire pocket springs connected with Niaga®️, a non toxic reversible adhesive, making the mattress easy to disassemble and recover.

IVL, Auping and TWE’s shared vision for a better world is demonstrated through their connected and innovative circularity that helps to close the loop. Auping collects, sorts and separates the collected fabrics, which then go to IVL Mullagh for processing, melting and extrusion to form polyester staple fiber. These staple fibers are then converted by TWE Group into nonwovens for use in Auping’s Evolve mattress, a fully circular mattress. Following the end of mattress use, the material recovery process simply starts again.

Auping estimates that annually more than 40 million mattresses are disposed of in Europe alone, the majority of which are incinerated. Their take back system in the Netherlands ensures that when their new mattress is delivered, the old mattress is retrieved and recycled, irrespective of the brand, ensuring existing materials are continually optimized, diverted from landfill and kept in use to achieve a circular economy.

Archroma, a global leader in specialty chemicals towards sustainable solutions, and Baldwin, a leading global manufacturer and supplier of precision spray systems and technology for sustainable textile manufacturing, announce a new collaboration to optimize performance and resource saving in the finishing department.

The two companies aim to support textile manufacturers in their development projects, targeting to improve their product safety, performance and functionality, while at the same time maximizing the productivity and resource utilization of the finishing application process.

Archroma and Baldwin are collaborating in multiple projects that combine Archroma’s most sustainable product innovations with Baldwin’s Texcoat G4.

TexCoat G4 is a non-contact spray technology for textile finishing and remoistening, designed to allow a controlled and optimal coverage of the exact amount of finish chemistry for reaching specific characteristics of the fabric. The system can be used to reduce water consumption by as much as 50% compared to traditional padding application processes.

Archroma and Baldwin are currently testing Archroma’s finishing products and systems, such as the soon-to-be-launched PFC-free* Smartrepel® Hydro SR for water-based soil repellence, as well as metal and inorganic particle-free antimicrobial technologies like Sanitized T 20-19 and TH 15-14, which will be launched at the upcoming Techtextil 2022.

The first test results will be available for discussions with both partners at Techtextil at their respective booths.

The European Pultrusion Technology Association (EPTA) has published a report from its latest conference, which focuses on advances in sustainability and recycling.

More than 130 professionals from the global pultrusion community gathered at the 16th World Pultrusion Conference in Paris on 5-6 May 2022. Organised by EPTA in collaboration with the American Composites Manufacturers Association (ACMA), the event featured 25 international speakers sharing insight on market trends, developments in materials, processing and simulation technologies, and innovative pultruded applications in key markets such as building and infrastructure, transportation and wind energy.

‘Bio-pultrusion’:  
Composites based on natural fibres offer a number of benefits, including low density and high specific strength, vibration damping, and heat insulation. The German Institutes for Textile and Fiber Research Denkendorf (DITF) are developing pultrusion processes using bio-based resins and natural fibres. Projects include the BioMat Pavilion at the University of Stuttgart, a lightweight structure which combines ‘bamboo-like’ natural fibre-based pultruded profiles with a tensile membrane.

Applications for recycled carbon fibre (rCF):
The use of rCF in composite components has the potential to reduce their cost and carbon footprint. However, it is currently used to a limited extent since manufacturers are uncertain about the technical performance of available rCF products, how to process them, and the actual benefits achievable. Fraunhofer IGCV is partnering with the Institute for Textile Technology (ITA) in the MAI ÖkoCaP project to investigate the technical, ecological and economic benefits of using rCF in different industrial applications. The results will be made available in a web-based app.

Circularity and recycling:
The European Composites Industry Association (EuCIA) is drafting a circularity roadmap for the composites industry. It has collaborated with the European Cement Association (CEMBUREAU) on a position paper for the EU Commission’s Joint Research Centre (JRC) which outlines the benefits of co-processing end-of-life composites in cement manufacturing, a recycling solution that is compliant with the EU’s Waste Framework Directive and in commercial operation in Germany. Initial studies have indicated that co-processing with composites has the potential to reduce the global warming impact of cement manufacture by up to 16%. Technologies to allow recovery of fibre and/or resin from composites are in development but a better understanding of the life cycle assessment (LCA) impact of these processes is essential. EuCIA’s ‘circularity waterfall,’ a proposed priority system for composites circularity, highlights the continued need for co-processing.

Sustainability along the value chain:
Sustainability is essential for the long-term viability of businesses. Resin manufacturer AOC’s actions to improve sustainability include programmes to reduce energy, waste and greenhouse gas emissions from operations, the development of ‘greener’ and low VOC emission resins, ensuring compliance with chemicals legislation such as REACH, and involvement in EuCIA’s waste management initiatives. Its sustainable resins portfolio includes styrene-free and low-styrene formulations and products manufactured using bio-based raw materials and recycled PET.