From the Sector

As one of the driving forces helping to create a fully circular fashion industry, ISKO has partnered with Swedish research and development company MoRe Research, a part of RISE Research Institutes of Sweden, to investigate and develop new, sustainable technologies made from cellulosic-based materials, derived from waste textiles, for the company’s 25,000+ range of products. It is hoped that this research will also help make the production of cellulose-based materials more sustainable.

The work with MoRe Research feeds into ISKO’s Responsible Innovation™ strategy and will link with various sustainability projects the company is working on. For example, ISKO recently signed an agreement with HKRITA to license its Green Machine – a unique technology that fully separates and recycles cotton and polyester blends at scale.

ISKO will leverage MoRe Research!s expertise and resources to find ways of repurposing the clean and toxic-free cellulose powders that are created from the decomposed cotton, as well as the recycled polyester and reintegrate this back into fabric production. By using all of the outputs from the recycling of textiles back into textiles, the prospect of a closed-loop system becomes more feasible.

The investment in this new technology is the latest in ISKO’s ongoing drive for advancements in sustainability. As part of the company’s R-TWO™ program ISKO is also working to develop fabrics with a guaranteed minimum +50% GRS (Global Recycle Standard) recycled content blend. This will significantly reduce the carbon and water footprint of a fabric, as well as make it easy to trace a garment’s sustainable journey step-by-step from the beginning of the supply chain through to the end product.

• Circular economy at Kelheim Fibres: Examples of innovation from raw material, product design and all the way to “end of life”

Kelheim Fibres, the world's first viscose fibre manufacturer with an EMAS-certified environmental management system, is continuously working on optimising its special fibres. These can be functionalised as needed - in many cases to save further processing steps (such as dyeing or coating) and thus energy, water and chemicals - and are completely biodegradable at the end of their product life in a short time (according to OECD Test 301 B).

Currently, the specialists in Kelheim are working on the development of alternative raw materials for the production of viscose fibres, such as recycled cellulose as well as other cellulose-containing starting materials. One approach to closing the product cycle in the textile sector is the use of pulp produced from recycled post-consumer waste materials.

In production, Kelheim Fibres focuses on resource conservation by minimising emissions and waste through closed-loop recovery systems, as well as through highly efficient energy generation and the corresponding operation of the plants.

Dr. Roland Scholz, Project Manager Fibre and Application Development at Kelheim Fibres, will present details of this on Wednesday, 15 September, at 5.50 p.m., in Hall B of the 60th Dornbirn GFC WEBINAR WEEK.

Translated with www.DeepL.com/Translator (free version)

• 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.

Sateri, one of the world's largest producers of viscose fibre, is planning to expand its Lyocell production in China, with total planned annual capacity of up to 500,000 tonnes by 2025.

The first phase of this expansion kicked off recently with ground breaking works for a new 100,000 tonne facility in Changzhou, Jiangsu province. Another 100,000 tonne facility will be built in Nantong, Jiangsu province later this year. The Changzhou Lyocell facility is expected to commence production in the third quarter of 2022 and will create more than 800 jobs.

Sateri’s first foray into China’s Lyocell market was in May 2020 when its 20,000 tonne Lyocell production line in Rizhao, Shandong province commenced production. The same site houses a 5,000 tonne Lyocell pilot production line dedicated for the development of Lyocell application technology.

Allen Zhang, President of Sateri, said, “Sateri’s continued investment in Lyocell not only responds to the changing needs of the market and the textile industry but also supports China’s green development plans. It is also very much a part of Sateri’s 2030 Vision commitment to sustainable development where we actively seek to adopt a circular economy model through clean and closed-loop production technology and innovation.”

A natural and biodegradable fibre, Sateri’s Lyocell is made from wood pulp sourced from certified and sustainable plantations. It is manufactured using closed-loop technology, requiring minimal chemical input during the production process, and utilising an organic solvent that can be almost fully recovered and recycled.

In anticipation of strong demand for Lyocell in the coming years, Tom Liu, Sateri’s Vice President and General Manager of Lyocell and Nonwovens Business, said: "Customer-centricity is Sateri’s promise. The new expansion plans will enable us to extend our domestic and international market reach and provide our customers with high quality and comprehensive fibre products. At the same time, we will invest in technology improvement, application development, and brand collaboration to bolster the industry”.

• "Dibella up" records its first big success

Aalten, "Dibella up" is bearing its first fruits. Since the launch of the recycling concept initiated in August 2020, six tons of sorted laundry items have already been returned to Dibella and converted into new ones by the company in farsighted reuse projects. The customer who has been involved in the project from the very beginning is Lamme Textielbeheer from Nederhorst den Berg. The Dutch textile service provider sees the initiative as an important measure for more appreciation of resources.

Dibella has taken the closed-loop approach of the textile service as a model and has taken a step towards a completely closed cycle with the "Dibella up" project. The system includes unlimited reuse and recycling of the fibre raw materials bound in the textiles. To this end, the company's own textile qualities, which are selected from laundries, are taken back and passed on to selected upcycling projects. Polyester-cotton blended fabrics are processed there into high-quality bags. Pure natural fibre textiles as well as blended fabrics with at least 50 percent cotton are chemically converted into an important raw material for cellulose fibre production, while the remaining polyester is still being thermally recycled for technical reasons.

Six tons of laundry from the Netherlands

Lamme Textielbeheer was immediately enthusiastic about the "Dibella up" initiative. The committed company has been involved in various Dibella sustainability projects for many years and recognises the future-oriented character of the new project. "Our will to cooperate was immediately clear after Dibella's managing director Ralf Hellmann presented the upcycling project, because we see it as an important measure for the prudent use of resources," reports Jan Lamme, managing director of the company of the same name. "Within a very short period of time, we therefore jointly started to take back our discarded, no longer usable old textiles. In this way, we have already been able to return six tonnes of laundry for a new product cycle. This corresponds exactly to our idea of upcycling!". "Dibella provides stable, reusable cartons for shipping," says a delighted Frank David, Lamme's Assistant Operations Manager. "This makes collection much easier for us and we don't have to take any means of transport out of our laundry".

Prepared for the mega-trend of recycling management

Dibella would like to build on the initial joint success and further expand the initiative for a closed textile cycle in the industry. "The awareness of sustainability is high in the textile rental service. But the next mega-trend is already emerging. The future lies in closed-loop recycling. With "Dibella up", we are offering our customers the opportunity to get involved now and make resources usable in the long term. We are happy about every new cooperation partner who appreciates the value of textiles as much as we do".

• Bemberg™ presents a great deal of novelties with a true key-statement for sustainability: Let’s Make it Circular!
• The lifespan of Bemberg™’s regenerated cellulose fiber Cupro derived from cotton is fully circular: from the source to manufacturing.

“Sustainability is the founding pillar of our company,” says SHUNSUKE SATO, sales manager of Bemberg™ by Asahi Kasei. “Indeed, the smart fiber is made from a cotton linter which is pre-consumer material, a natural derived source, that doesn’t deplete forestry resources”.

In Bemberg™’s production the whole sustainable closed-loop process is supported by the LCA study, signed by ICEA (Istituto per la Certificazione Etica e Ambientale) and validated by President of Ecoinnovazione Paolo Masoni ex Research Director of ENEA (Ente per le Nuove tecnologie, l’Energia e l’Ambiente).

While recyclability is granted by the Global Recycle Standard - GRS certification by the renown Textile Exchange (an influential guarantee that involves the whole production process and supply chain behind the company’s smart yarns), Bemberg™ yarns are also entirely biodegradable and ecotoxicity-free - meaning that at the end of their life circle they break down into the environment leaving no trace in terms of toxic substances as attested by the Innovhub-SSI report.

A special focus deserves Velutine™ Evo, the new fibrillation finishing technology for Bemberg™ fabrics only that guarantees another level of sustainable benefits without sacrificing the Bemberg™ amazing and unique touch. As part of the company’s continuous innovation, Velutine™ Evo brings better environmental, energy and water profiles for the benefit of Bemberg™ partners in the manufacture of their ranges.
The sustainable achievements of the new finishing technology have been measured by LCA - Life Cycle Assessment study by ICEA and proved to guarantee environmental benefits such as -16.5% of greenhouses gas emissions and -21% of overall consumption of energy resources. On top of that Velutine™ Evo means also -20.5% of electricity savings, -15.9% of steam production and -19.5% of water consumption.

The first Bemberg™ partner to present a commercial collection enriched by Velutine™ Evo is the Portuguese Matias & Araújo. With an innovative spirit, dynamism and a determined entrepreneurial spirit, the company is a leading knitwear producer for the textile industry.

Bemberg™ collaborated also with the premium brand CAALO that is making its mark in the outerwear market with its Sustainably produced Functional-Luxury proposal. For SS20, CAALO uses Bemberg™ lining because of the sustainability properties and it’s unique colour.

CAALO uses as much eco-friendly and sustainable materials as possible without compromising on design or quality. This Bemberg™ lining was a perfect fit. This versatile blazer features a removable hood, hidden welt pockets, button closure, and removable cargo pockets.

The two AZL Partners Conbility GmbH and Fraunhofer IPT, Aachen started their long-term cooperation for the further development and for the commercialization of Fraunhofer´s tape-placement and tape winding systems with in-situ-consolidation by the usage of laser or IR heat sources.

With this cooperation, the company Conbility GmbH makes 25 years of expertise in special machine development of tape placement systems of the Fraunhofer Institute for Production Technology IPT commercially available. Conbility offers two different tape processing systems available in different configurations.

The “PrePro 2D” machine system allows for the automated tailored tape placement of UD laminates and which can be used for subsequent thermoforming or as stiffening structures in injection molding processes. The machine comprises a rotating and translational table which is moved relatively to the applicator station. The table is scalable according to the requirements of customers. Standard table diameters are 1200 mm or 2000 mm. The applicator station can be equipped with a single or with multiple spool applicators. Because of the large process area, a 9 kW IR heater is used for the in-situ-consolidation process.  
Three in one: Three technologies included in one single modular system
Furthermore, the award-winning “PrePro 3D” tape placement and winding applicator is available as modular product with decentral control system (including closed-loop control of energy input into the processing zone) for the “plug-in” implementation in existing robot systems or machine systems by standard interfaces for the communication with the master control system. Conbility provides the single applicator as well as turn-key ready systems including the robot and handling systems.

Unique selling point of the PrePro 3D system is its multifunctional range of usage: it accomplishes laser-assisted thermoplastic tape placement, IR-assisted thermoset prepreg placement and dry fiber placement: Three technologies included in one single modular system.  

During the JEC World in Paris (March 6th – 8th 2018), Conbility GmbH will present its new “VCSEL Tape Placement and Winding Applicator” (Fig. 3), developed in cooperation with Fraunhofer IPT and Philips Photonics at the AZL Composites in Action area (Hall 5A, C55).

VCSEL Laser Systems as heat source for lower investment and process costs
This applicator uses an integrated VCSEL Laser System as heat source which has been developed by Philips Photonics. This tape placement and winding applicator can also be integrated as modular “plug-in” system into industrial jointed-arm and linear gantry robots in variable manufacturing cells. Using the new VCSEL Laser as heat source (VCSEL: Vertical-Cavity Surface Emitting Laser) leads to significant lower investment and process cost in comparison to other laser systems. Furthermore, the VCSEL laser system can accomplish controllable in-process adjustments of the laser-spot geometry as well as the intensity distribution within the spot size during the process (in-process control of laser-spot geometries and intensities) for the first time. The new system with 2 kW laser power and 10 separate emission zones which can be controlled separately will be shown at JEC World in Paris 2018 as new product of Conbility GmbH.