From the Sector

At the recent CAMX 2022 Composites and Advanced Materials Expo in Anaheim, California, The Heat Sealing Module – HSM from Zünd was recognized with an Unsurpassed Innovation Award. The HSM significantly facilitates the processing and handling of dry fiber materials with thermoplastic content. This new tool is Zünd’s answer to a demand in the composites industry for wider-spread use and easier processing of these types of materials.

The American Composites Manufacturing Association, ACMA, proclaimed the Heat Sealing Module – HSM the winner of the ACE Award for Unsurpassed Innovation in the “Manufacturing: Equipment and Tooling” category. This award is presented annually to equipment, tooling, a production aid, or software designed to improve manufacturing production, environmental sustainability, or product quality and performance in composites manufacturing.

During processing, dry fiber materials are prone to fraying along the edges. Using hot air, the HSM seals the fabric along the cut path in advance of the Zünd Power Rotary Tool – PRT cutting it. Because of this sealing process, the cut can then be performed at full speed, in any direction, and produces both higher-quality parts and greater production efficiencies.

The HSM helps create clean, sealed edges when cutting fiber-reinforced thermoplastic composites. It benefits not only the cutting process itself, but other production processes downstream. Cutting this way leaves behind no loose or uncut fibers and maintains a clean cutting surface and uncontaminated production environment. At the same time, it ensures that cut parts maintain their shape, and this increased stability makes them much easier to handle, especially in fully automated production workflows.

Ganesha Ecopet Private Limited, a subsidiary of Indian PET recycling pioneer Ganesha Ecosphere Ltd., has recently opened its new Warangal facility under the brand name Go Rewise where it produces rPET for filament yarns and fibres, as well as for food-grade packaging.  

The company has installed two Starlinger PET recycling lines in its facility in Warangal, Telangana state. Ganesha Ecopet plans to supply the produced rPET granulates under its newly introduced brand enterprise Go Rewise. Launched under the umbrella of one of India's rPET industry leaders, Go Rewise is committed to supplying highest quality rPET products that are produced in a resource-efficient process.
One Starlinger recycling line, a recoSTAR PET 165 H-VAC, processes washed PET bottle flakes for the Go Rewise polyester filament yarn applications and reaches an output of approx. 14,000 tons per year. With the second Starlinger recycling line, Ganesha is producing food-grade rPET resins.

Ganesha Ecosphere looks back on 30 years of experience in the PET recycling business and can be considered a role model regarding sustainable business activities. Founded in 1987, the company started out as a yarn processing facility. It was among the first companies in India to start reprocessing PET waste to manufacture recycled polyester staple fibre (RPSF) and recycled polyester spun yarns (RPSY) in 1994. By today, the group has established a large network of over 300 scrap vendors located across the country and operates four factories in India - two in Uttar Pradesh, one in Uttarakhand, and the recently opened one in Telangana. It also recently operationalised its first factory outside India in Nepal. With over 500 customers and exports to more than 18 countries, the company ranks among the largest rpet producers in India with 130,000 tonnes per year and currently recycles around 16 - 18 % of India's total PET waste.

• 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.

The company’s principle theme at Techtextil was Sustainability, since FET extrusion systems are ideally suited for both process and end-product development of sustainable materials. These systems are designed to be material efficient, can be bespoke designed and offer both flexibility and a high level of processing capability. They are supplied as self-contained units for ease of installation in a laboratory or small scale process evaluation environment.

FET’s enhanced Fibre Development Centre enables clients to develop and trial their own sustainable fibres and FET has now successfully processed almost 30 different polymer types in multifilament, monofilament and nonwoven formats

The innovative stand at Techtextil was specifically designed to highlight FET’s total commitment to all aspects of sustainability. It utilised as many sustainable components as possible and met with much comment and approval from visitors.

Fibre Extrusion Technology Limited (FET) of Leeds, England enjoyed another successful Techtextil in Frankfurt, with high quality enquiries from technical companies and organisations worldwide, but in particular from customers based in Europe.

• 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. ”

With the goal of making recycling of lightweight, high-volume fiber and flake recyclate much more economical and, in some cases even possible, Coperion has developed a new version of its ZS-B side feeder. Using the innovative ZS-B MEGAfeed, plastic recyclate with a bulk density under 200 kg/m³, long considered intake-limited and thus not worth recycling, can be reliably fed in large quantities into Coperion’s ZSK twin screw extruder and be concurrently recycled and compounded.

The ZS-B side feeder’s novel design makes it possible to feed very high rates of fiber and flakes, such as PA, PE, PET, and PP. As a result, the ZSK twin screw extruder’s high capacity can be fully exploited when the ZS-B MEGAfeed is used. Very high throughputs in both mechanical and chemical recycling of post-industrial and post-consumer waste are achieved.

Increased Throughput in Numbers
With a ZSK 58 Mc18 twin screw extruder, the throughput increase and thus the potential of the new ZS-B MEGAfeed becomes very clear. When recycling PA fibers with a bulk density of ~40-50 kg/m3, throughputs of 70 kg/h were previously achieved using conventional equipment. When the PA fibers were fed into the ZSK extruder using the ZS-B MEGAfeed, throughputs increased about fourteenfold to 1,000 kg/h. Similar results were achieved recycling carbon fibers with a bulk density of ~50-70 kg/m3; in this case, throughputs increased from 50 kg/h to 2,500 kg/h using the ZS-B MEGAfeed. When recycling PCR (Post-Consumer Recycled) flakes, throughputs increased from 50 kg/h to 700 kg/h, and from 80 kg/h to 1,300 kg/h with multilayer film flakes.

Key to Economical Recycling of A Wide Variety of Plastics
Plastics previously considered not recyclable are becoming a valuable raw material using the new Coperion ZS-B MEGAfeed. For example, PCR flakes or recyclate from carbon fiber-reinforced plastics can now be fed into the ZSK extruder at high feed rates and recycled economically.

In the case of mechanical upcycling, upstream processes necessary for compounding, such as compacting, melting and agglomeration, are completely eliminated using the ZS-B MEGAfeed technology. In this recycling process, flakes and fibers can be fed directly into the ZSK extruder, where they are melted, compounded, devolatilized, and filtered in a single step. In so doing, both investment costs and energy consumption drop. The production process becomes significantly more efficient. Moreover, the thermal product stress is reduced and recyclate quality increases.

Even when recycling PET, the feed rate is no longer a limiting factor. With the ZS-B MEGAfeed, PET flakes and fibers can be fed into the ZSK twin screw extruder in large quantities with no pre-drying or crystallizing, where they can be processed with the highest degree of profitability.

The ZS-B MEGAfeed can also feed large quantities of post-consumer waste, adding appreciable value to the chemical recycling process with the ZSKs. ZSK throughput rates are very high with the ZS-B MEGAfeed. Preheating of the recyclate via mechanical energy input of the twin screws thus becomes even more economical for further processing in the reactor.

Existing Coperion extruders can be retrofitted with ZS-B MEGAfeed technology to greatly expand their spectrum of applications and increase their throughput rates.

• Finnish fashion and textile technology company Infinited Fiber Company plans to build its first commercial-scale Infinna™ fiber factory at Stora Enso’s Veitsiluoto industrial site in the city of Kemi in Finland’s northernmost region of Lapland. Infinited Fiber Company plans to convert a building currently housing a discontinued paper production line.
• The size of Infinited Fiber Company’s planned investment is around EUR 400 million.
• The planned factory is expected to create around 270 jobs at the Veitsiluoto industrial site.
• The factory is expected to operate at full capacity in 2025.

Fashion and textile technology company Infinited Fiber Company plans to build a commercial-scale factory to produce regenerated textile fiber for the world’s leading apparel companies at the site of renewable materials company Stora Enso’s closed Veitsiluoto paper mill in Kemi, a Finnish city on the northern shore of the Baltic Sea. The size of the investment is estimated at EUR 400 million, and it is expected to create around 270 jobs in the area. The annual fiber production capacity of the planned factory is expected to be 30,000 metric tons, which is equivalent to the fiber needed for about 100 million T-shirts.  

Infinited Fiber Company’s technology enables cotton-rich textile waste to be transformed into a versatile, high-quality regenerated textile fiber called Infinna™, which looks and feels like cotton. Major international fashion and apparel companies – including Zara’s parent company Inditex, PVH Europe, which is known for the Tommy Hilfiger brand, Patagonia, PANGAIA, H&M Group and BESTSELLER – have already committed to Infinna™ purchases through multi-year agreements as they look for materials that enable the industry to shift towards circularity. Infinited Fiber Company expects to export most of the output of its planned factory. This makes Kemi an ideal location as the city’s port serves as an efficient link to the rest of the world.

Infinited Fiber Company will convert a building housing a discontinued paper production line into an Infinna™ fiber factory. Both the factory engineering and project implementation as well as the related financing negotiations were commenced at the beginning of the year and are progressing well. Infinited Fiber Company has also agreed on the provision of energy and water related services with utility infrastructure company Nevel.

Once up and running, the factory is expected to provide direct employment for around 220 people, and for a further 50 through on-site support functions such as services, maintenance, and logistics. The additional indirect employment impact is estimated to be around 800 jobs. The construction and installation phase is expected to create jobs equaling around 120 person-years. The factory is anticipated to operate at full capacity in 2025.

• Sustainable infrastructure solutions, road safety and health protection

At this year’s Techtextil, Oerlikon Polymer Processing Solutions will be presenting the trade audience with new applications, special processes and sustainable solutions focusing on the production of industrial textiles. Among other things, the company will be showcasing new technology for charging nonwovens that sets new standards with regards to quality and efficiency. Between June 21 and 24, the discussions will be concentrating on airbags, seat belts, tire cord, geotextiles, filter nonwovens and their diverse applications.

More polyester for airbags
Airbags have become an integral part of our everyday automotive lives. The yarns used in them are made predominantly from polyamide. As a result of increasingly diverse airbag applications and also the increasing size of the systems used, polyester is today used as well, depending on the application requirements and cost-benefit considerations. Against this background, the Oerlikon Barmag technologies make an invaluable contribution. In addition to high productivity and low energy consumption, they particularly excel in terms of their stable production processes. Furthermore, they comply with every high quality standard for airbags, which – as in the case of virtually all other textile products used in vehicle construction – must provide the highest level of safety for vehicle occupants. And all this without any loss of function in any climate and anywhere in the world for the lifetime of the vehicle.

Buckle up!
Seat belts play a decisive role in protecting vehicle occupants. They have to withstand tensile forces in excess of three tons and simultaneously stretch in a controlled manner in emergencies in order to reduce the load in the event of impact. A seat belt comprises approximately 300 filament yarns, whose individual, high-tenacity yarn threads are spun from around 100 individual filaments.

Invisible, but essential – road reinforcement using geotextiles
But it not just inside vehicles, but also under them, that industrial yarns reveal their strengths. Low stretch, ultra-high tenacity, high rigidity – industrial yarns offer outstanding properties for the demanding tasks carried out by geotextiles; for instance, as geogrids in the base course system under asphalt. Normally, geotextiles have extremely high yarn titers of up to 24,000 denier. Oerlikon Barmag system concepts simultaneously manufacture three filament yarns of 6,000 denier each. Due to the high spinning titers, fewer yarns can be plied together to the required geo-yarn titer in a more cost- and energy-efficient manner.

hycuTEC – technological quantum leap for filter media
In the case of its hycuTEC hydro-charging solution, Oerlikon Neumag offers a new technology for charging nonwovens that increases filter efficiency to more than 99.99%. For meltblown producers, this means material savings of 30% with significantly superior filter performance. For end users, the consequence is noticeably improved comfort resulting from significantly reduced breathing resistance. With its considerably lower water and energy consumption, this new development is also a future-proof, sustainable technology.

New high-tech Staple Fiber Technology Center
Extending to around 2,100 m2, Oerlikon Neumag in Neumünster is home to one of the world’s largest staple fiber technology centers. As of now, these state-of-the-art staple fiber technologies are also available for customer-specific trials.

The focus during the planning and the design of the Technology Center was on optimizing components and processes. Here, special attention was paid to ensuring the process and production parameters in the Technology Center system could be simply and reliably transferred to production systems. Here, the fiber tape processing line is modular in design. All components can be combined with each other as required. And comprehensive set-up options supply detailed findings for the respective process for various fiber products.

The Technology Center is also equipped with two spinning positions for mono- and bi-component processes. The same round spin packs are used for both processes, characterized by excellent fiber quality and properties and meanwhile very successfully deployed in all Oerlikon Neumag production systems. Furthermore, the spinning plant is complemented by automation solutions such as spin pack scraper robots, for example.

With its current position paper, the Industrievereinigung Chemiefaser e.V. takes a stand on the intense discussions about an embargo against Russian natural gas supplies. The association believes that Germany's economic and global political future can only be secured with a strong industrial base and therefore, weighing up all positions and influencing factors and assessing the consequences for labour and the market economy, cannot support a short-term natural gas embargo on Russia.

An interruption of the continuous supply of natural gas would result in immense losses for the chemical fibre companies, which could even lead to the destruction of the industry in Germany. The losses are made up of technical damage caused by an uncoordinated shutdown of plants on the one hand and market-related consequential damage caused by lost production and a lack of product sales on the other.

Depending on the location and size of the plants, a short-term outage due to a lack of natural gas would result in average losses of EUR 5 million/plant. In addition, an ongoing daily loss would have to be expected which could be in the order of e.g. 250 000 EUR/day/plant, depending on the location. Furthermore, restarting the plants is questionable if supply chains could no longer be serviced and customers globally look for other suppliers in the meantime. Thus, entire sites would be at risk. With China's global market share in man-made fiber production already exceeding 70 %, a scenario is more than realistic that China will also take over these supply chains, thus leading to an even greater dependence on China.

The vast majority of power plants used for the production of man-made fibers, especially the highly efficient combined gas-and-steam power plants based on the principle of cogeneration with efficiencies of 90 %, are designed exclusively for the use of natural gas. Quite often, there are no technical facilities for operating gas turbines or steam boilers with fuels other than natural gas. Only in exceptional cases could a switch be made to mineral oil. However, even in these cases, the necessary stockpiling of mineral oil is designed only for a short-term failure of the gas burners. A change to base-load supply with mineral oil could take a time window of between 3 and 56 months, depending on the type of plant and taking into account licensing requirements. The use of hydrogen as an energy source is only possible in the very long term. In the few cases where natural gas can be substituted, investment costs of EUR 250 million/plant can be incurred, depending on the emission level of the converted plant.

A natural gas embargo imposed by the European Union on the Russian Federation would not only mean the cessation of production and the end for man-made fiber producers, but also for other industries such as basic chemicals, paper, metal production and glass and ceramics manufacturing, as well as their related sectors. As the German economic institute Institut der Deutschen Wirtschaft Köln e. V. (IW Köln) concluded in its summary report 40/2022 of April 2022: "No one can accurately predict what future these businesses would then still have in Germany. That would be an unprecedented development."

SMCCreate 2022, the design conference jointly organized by the AVK and the European Alliance for SMC BMC takes place from 28-29 June 2022 in Antwerp, Belgium. Registrations are now possible.

This unique conference about design in SMC and BMC composite materials will provide valuable insights in the entire product design process from idea to part manufacturing, targeted both at experienced designers and at designers that are new in applying these versatile materials.

Within the time of only 1.5 day, the SMCCreate 2022 conference will cover a wide range of subjects, all relevant for designers in their selection of materials solutions that provide performance, cost efficiency, manufacturing ability and sustainability.

Program
15 lectures by international speakers from France, Germany, Italy, Spain, The Netherlands and the USA will present practical presentations about sustainability, part design, mobility and automotive applications. Equally current trends and developments in the European SMC/BMC market are on the agenda.

Date and Location
The SMCCreate 2022 Conference will be organized on June 28-29, 2022 in the Hilton Hotel in Antwerp (Belgium). The presentation language will be English. The programme, further details and registration information is available at www.avk-tv.de.