From the Sector

Hexcel, a global leader in advanced composites technologies, announces the successful maiden flight of a lightweight camera drone, developed using Hexcel HexPly® carbon fiber prepregs. The composite drone was developed by a team of students from the University of Applied Sciences Upper Austria in Wels with composite materials supplied by Hexcel Neumarkt in Austria.

A team of six students in the university’s lightweight construction and composite materials course was responsible for the complete design, engineering, and manufacture of the camera drone over a period of 18 months. Hexcel materials and optimization of the composite engineering enabled the team to reduce the composite structural mass by an impressive 42% compared to similar drones.

Hexcel Neumarkt was one of eight industrial partners supporting the university team throughout the project, providing all carbon fiber prepreg materials used for the drone’s landing gear as well as the fuselage. The ultra-lightweight 32g landing gear was laid up and cured in the press, whereas the fuselage was autoclave cured by the student team using Hexcel HexPly M901 and HexPly M78.1 prepreg resin systems with a combination of woven and unidirectional carbon fiber reinforcements.

With the development of Unmanned Aerial Vehicles (UAV) as a key emerging market and innovation space in the transportation sector, Hexcel’s collaboration with the University of Applied Sciences Upper Austria team not only creates an important link with the next generation of lightweight composite engineers but also highlights the weight saving and structural benefits of Hexcel composite material solutions.

"The massive weight saving achieved with their updated version of the camera drone is a fantastic achievement by the student team," said Michael Rabl, Dean of FH Wels of the Upper Austria University of Applied Sciences. "The joint study not only illustrates the wide range of complex and innovative composite techniques present in the drone sector but also presents the opportunities that exist for further development in the wider Urban Air Mobility (UAM) and aerospace composites markets.”

Hexcel congratulates the project team which includes Lukas Weninger, Karl-Heinz Schneider, Jakob Schlosser, Matthias Thon, Marla Unter, and Simone Hartl on an exceptional piece of lightweight composite design and thanks them for showcasing the contribution of Hexcel materials with a presentation and drone flight. Johanna Arndt, research and technology group leader at Hexcel Neumarkt, said, “It was a great pleasure to work with the team who were very cooperative and self-motivated to succeed. Watching the drone just fly around the Neumarkt plant was just great.”

Hexcel manufactures a complete range of carbon fibers, dry carbon UD tapes, specialty reinforcements, prepregs, and honeycomb core materials, providing customized manufacturing options for new UAM applications that combine aerospace reliability with the high-rate production required. Hexcel composite materials are the ideal solution for the lightest and most efficient cost-competitive transportation vehicles of the future.

• 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.

Winding technology offers simplicity, productivity and product control for premium tissue products

Paper Converting Machine Company (PCMC)—a division of Barry-Wehmiller and a global supplier of high-performance converting machinery for the tissue, nonwovens, package-printing and bag-converting industries— is pleased to announce the launch of its Paragon tissue rewinder.

Paragon features a patent-pending center-surface design that produces superior caliper, bulk and diameter flexibility. Log winding takes place in a new-concept nest, comprised of a winding drum, winding belt, compound-motion rider roll and center drives.

"Paragon offers a completely new method of tissue rewinding,” said Andrew Green, PCMC Vice President of Tissue and Folding. “It is radical only in the sense that we made the wind nest as simple as possible. Usually when you increase a machine’s speed, you sacrifice ease of use, but we know customers want both. With Paragon, we created a machine capable of higher speeds that is easier to operate. It’s remarkable.”

Many of Paragon’s subsystems are proven technology solutions in use on PCMC’s trusted Forte rewinder, with several upgrades. Paragon’s enhanced web handling and grade changes are mainly recipe-driven, and its specially designed tools guide fast calibrations. Like the Forte rewinder, Paragon has an intentional open-access design, plus, typical areas to clean require less frequent attention, and recovery and restart occur safely and quickly. Paragon also closes the gap between humans and machines with a new Smart Touch human-machine interface (HMI), which delivers Industry 4.0 tools that transform data to action. Following high-performance design principles, the clean and modern interface provides enhanced operator help, and new smart analytic features offer insights to improve overall equipment effectiveness. The Smart Touch HMI works much like today’s mobile devices with swipe functionality, enabling a short learning curve and improved productivity.

“While the focus is on the new wind nest, a Paragon line is more than that,” said Green. “We added elements like advanced web handling and a state-of-the-art HMI. At PCMC, we are not into hyperbole, but we believe that this machine has raised the bar and is what future tissue-converting machines will be judged against. And, that’s why we called it Paragon.” 

• ANDRITZ receives an additional order for a high-speed spunlace line from Zhejiang Kingsafe, China

International technology Group ANDRITZ has received an order from Zhejiang Kingsafe Hygiene Materials Technology Co., Ltd. in Hezhou, China, to supply a complete new neXline spunlace line. The line is scheduled for installation and start-up during the second quarter of 2022.

This high-capacity spunlace eXcelle line will process either 100% biodegradable fibers or blends of polyester and viscose. It is dedicated to the production of hygiene and medical fabrics. The final products will have fabric weights ranging from 30 to 100 gsm, and the annual production capacity will be up to 18,000 tons.

ANDRITZ will deliver a complete line, from web forming to drying, also integrating two high-speed TT cards, the well-known JetlaceEssentiel hydroentanglement unit and the neXdry through-air dryer equipped with a neXecodry S1 system for energy saving. This combination is becoming the market benchmark for the production of lightweight spunlace fabrics dedicated to the hygiene market.

“We are proud to operate ANDRITZ nonwoven lines, which are very reliable and efficient. It helps us a lot in producing top-of-the-range, nonwoven roll goods, thus enabling us to be recognized as a key player among nonwovens producers worldwide,” says Kingsafe’s president, Mr. Huarong Yan.

Zhejiang Kingsafe Hygiene Materials Technology Co., Ltd., founded in 1987, is one of the largest companies in China producing spunlace and spunbond nonwoven roll goods, with several spunlace lines already in operation. The final products are exported all over the world and used in many fields, such as the medical sector, health care, high-tech agriculture, and high-quality consumer and household products.

The new line is now the ninth spunlace line supplied by ANDRITZ and the third with high-speed TT cards, thus confirming the successful, long-term partnership between ANDRITZ and Zhejiang Kingsafe. The order also proves that the solution provided by ANDRITZ is recognized as the benchmark for production of premium spunlace roll goods and contains the perfect combination for wipes converting machines.

International technology Group ANDRITZ has always been at the forefront in providing innovative and sustainable solutions for the global nonwovens industry. Optimization of resource management, especially reducing the consumption of raw materials and other substances used and also keeping resources in use for as long as possible, are decisive factors in enabling nonwovens producers to offer competitive and sustainable products.

As a world market leader for nonwovens production equipment and services, ANDRITZ offers a full range of products to meet these challenging demands.

Maximizing the evenness of the product across the entire production line is one of the key success factors. The weight profiling product range of ANDRITZ – consisting of ProDynTM and ProWidTM – has been extended by ProWinTM. This new development is the combination of the two existing systems ProDynTM and ProWidTM. It allows nonwovens producers to achieve optimum weight profiling at the crosslapper delivery and increase their process speed by up to 15% at the same time. ProWin combines the long-term process experience and in-depth knowledge ANDRITZ has on needlepunch lines with innovative software to synchronize action across the line. Guillaume Julien, Head of Needlepunch Sales at ANDRITZ Nonwoven, explains,

“We have developed a self-regulating, advanced technology to reduce fiber deposits at the edges of the web and eliminate the “smile” effect across its width. ProWin enables producers to optimize the CV ratio autonomously and precisely while also generating significant fiber savings of up to 10% and increasing production speed. Thus, it also provides a faster ROI.“

When it comes to the spunlace process, a better product quality can be obtained by ensuring that the different equipment units in the production line are consistent with one another. The TT card, the Jetlace hydroentanglement unit, and the neXdry through-air dryer are the perfect combination to obtain premium visual quality and characteristics in the web. For an equivalent amount of fibers, this set-up is designed to produce an even web with significant bulkiness and an excellent MD:CD ratio without impacting the production capacity.

Maximizing performance by minimizing the raw material input and the amount of waste produced is a real driver of cost optimization. This is why ANDRITZ has created and integrated a solution that allows nonwovens producers to retrieve the wasted edges of their spunlace fabric and re-use it as recycled fibers. As a result, roll-good producers can even obtain the same web characteristics as when using virgin fibers, and most importantly, the exact same quality.

ANDRITZ also offers – under the brand Metris – ANDRITZ digital solutions – a variety of several service apps for optimum customer benefit. The Metris Cost Management app is used to track raw material consumption. It is an advanced system aimed at monitoring fiber consumption and allowing in-depth diagnoses to investigate raw material losses and savings grouped by different process areas. Thanks to this Metris application, ANDRITZ customers are able to optimize their system’s consumption of raw materials.

All these innovations are available in ANDRITZ’s technical centers, where ANDRITZ process experts will be glad to welcome customers in order to discuss and define their product expectations.

AMAC cooperates with ITA (Institute for Textile Technology of RWTH Aachen University and their ITA GmbH) for the business development in composites 

As of April 19th, 2021, AMAC is pleased to announce its cooperation with the Institute for Textile Technology, ITA, of RWTH Aachen University and their ITA GmbH. The aim of the cooperation is to strengthen and develop their business activities in composites.

ITA, as one of the largest institutes on the campus of the excellence University RWTH Aachen, Germany, develops complete solutions from the manufacturing of the fiber itself over the processing of textile intermediates with thermoplastic and thermoset resins, textile-based part manufacturing, capabilities such as braiding, pultrusion and in-situ impregnation of textile preforms. Top 3 focused industries are transportation and particularly the e-mobility sector, building and construction as well as the wind energy sector. Additionally, ITA GmbH is the partner of the industry in R&D, focusing on 8 business segments, providing technology and knowledge transfer, as well as offering comprehensive solutions along the entire textile value chain.

Prof. Dr. Thomas Gries, Director of ITA, explains the background of the strategic cooperation with focus on composites: „Our long-term experience and unmatched know-how with all aspects of continuous fibers, non-wovens and web-based reinforcements allows us to deliver to the composite manufacturers a complete technology and service offer around the development of technical textiles, from the development of glass and carbon fibers to the textile-based processing of composite parts. In all process steps of our research and developments, we focus on sustainable and recyclable solutions, an efficient cost-performance ratio, the possible use of bio-based materials and the reduction of the CO2 footprint. We are glad to cooperate with Dr. Michael Effing and AMAC in order to benefit from his door-opening network in the composites industry. “

Dr. Michael Effing, Managing Director of AMAC GmbH: „I am very happy to support the ITA to generate innovation thanks to further industrial networking and pre-competitive joint projects. ITA is indeed a one-stop source for composite solutions from the fiber to the cost-efficient manufacturing of final parts. In the context of the Covid-19 impact to the entire industry, it makes sense to bundle forces. Furthermore, ITA, with its long tradition and satisfied customers offers further valuable networking opportunities to the composites industry as well as access to relevant complementary fiber-based excellence and 250 different technologies in their machine-park with an outstanding infrastructure in Aachen.”

International technology Group ANDRITZ has received an order to supply four new needlepunch lines for nonwoven production from Chongqing Double Elephant Microfiber Material Co., Ltd., China. These lines are scheduled for installation and start-up in the fourth quarter of 2021.

The needlepunch lines by ANDRITZ are designed to process islands-in-the-sea fibers dedicated mainly to the production of high-quality synthetic leather products. Once completed, the lines will produce 30 million meters a year of microfiber nonwoven materials.

The production lines are equipped with an ANDRITZ carding machine and the newly developed Profile® crosslapper as well as the advanced-technology ProWid closed-loop system from ANDRITZ. The system can monitor the weight uniformity (CV%) of the entire product online and predict the weight distribution changes caused by the bonding process. In addition, the web weight can be reduced by controlled stretching, which solves the issue of fiber accumulation at the edges caused by traditional crosslapping methods. Both the weight and the uniformity of the product can be automatically adjusted via the closed-loop function as set on the ANDRITZ gauge.

Chongqing Double Elephant Microfiber Material Co., Ltd., wholly owned by listed Wuxi Double Elephant Microfiber Materials Co., Ltd., is located in the Changshou National Economic and Technological Development Zone of Chongqing City. The company is active in the research, development and manufacture of microfiber materials, polyurethane synthetic leather and polyurethane resin.

Archroma, a global leader in specialty chemicals towards sustainable solutions, and Jeanologia, a world leader in sustainable and efficient technology development, today announced the launch of ‘Pad-Ox G2 Cold’, a water-saving dyeing process at room temperature for casual looks.

Archroma initially introduced its eco-advanced Pad-Ox dyeing process for woven fabrics, and then used it as part of its ADVANCED DENIM concept. By combining the oxidation and fixation steps, it is possible to shorten the dyeing process and thus realize substantial resource savings in water, wastewater, cotton waste, and energy.

Over the years the company has worked with its textile manufacturers and partners to improve the Pad-Ox process, in particular woven applications such as chinos and casual wear. To achieve maximum positive impact, Archroma is using its Diresul® range of low sulfide sulfur dyes and, more recently, its innovative plant-based range of EarthColors®. A wide selection of dyes from these two ranges have received the Cradle-to-Cradle Product Innovation Institute’s Platinum Level Material Health Certification.

Meanwhile, Jeanologia has been working on the technology side, with laser and eco-finishing solutions for more than 25 years, accompanying the textile industry on their way to producing with zero discharge. In 2008, the company introduced its G2 Dynamic the first ozone treatment for continuous fabric that dramatically reduces the amount of water and chemicals used, while at the same time saving costs at the mill and eventually at the garment finishing facilities. This technology makes fabric more stable and consistent and prepares the fabric better for the use of other technologies like laser. This machinery can be used along with Pad-Ox technology to help cleaning fabric thus improve fastness results. While it allows process to work at room temperature.

Project focus on water saving
Archroma and Jeanologia therefore understandably decided to team up and combine their expertise in sustainable dyeing and finishing technologies. The objective of the project was to improve the Pad-Ox dyeing process even further, in particular in one area that still offered room for positive impact: temperature and fastnesses.

The new ‘Pad-Ox G2 Cold’ dyeing process works thanks to the insertion of very small machinery into the existing finishing range process, using cold processing and thus operating with much less water, carbon footprint and energy than traditional benchmark fabric finishing processes, whilst retaining the water and other resource savings offered by the Pad-Ox technology.

Maximum savings can be achieved by mills and garment manufacturers who wish to switch from a conventional dyeing process straight to ‘Pad -Ox G2 Cold’ to obtain high quality fabrics for comfortable and casual wear.

International technology Group ANDRITZ has received an order from Pureko Sp. z o.o. to supply a needlepunch line for their plant in Myszków, Poland. The line will process recycling fibers from garment waste for the production of technical felts dedicated to furniture and geotextile applications. The final products will have fabric weights ranging from 300 to 500 gsm, and the production capacity will be up to 750 kg/h. Installation and start-up are scheduled for the third quarter of 2021.

The ANDRITZ scope of supply includes a complete neXline needlepunch eXcelle line – from web forming to needling – as well as engineering and ANDRITZ’s recently launched scanning gauge.

This is the second ANDRITZ line to be supplied to Pureko, thus demonstrating the strong partnership between both companies. Three years ago, Pureko invested in a new, modern plant supplied by ANDRITZ Asselin-Thibeau to produce fluffy nonwovens used in the furniture, textile, and clothing industries. The new line will enable Pureko to continue its ongoing growth.

Founded in 2009, Pureko is one of the most important producers of nonwovens in Poland. The company’s nonwoven products are mainly used for wadding; they are free of chemicals, do not involve any health hazards, and are hypoallergenic. Pureko’s products carry top certificates such as INTERTEK, FIRA, OEKO-TEX, and the National Institute of Hygiene.

Patients as well as air-condition and ventilator systems spread SARS-CoV-2 virus as aerosols which settle on surfaces and remain there infective for more than 72 hours. That‘s why the pandemic has triggered an intensive search for Personal Protective Equipment PPE whose surfaces have antiviral properties, e.g. are able to bind and inactivate adhering virus.

In this context the chemical stability of the materials being used for PPE, polypropylene PP and/or polyester PET, is a challenge. More precisely, the absence of so-called ‘functional groups‘, like -OH, -COO-, -NH3+ at the material‘s surface. These groups are the fundamental basis for surface chemistry – specifically for attaching antiviral compounds onto the surfaces of man-made fibers.

Antiviral surface modification with the basic amino acid Arginine Arg is a new approach to inactivate SARS-CoV-2. - bionic surfaces‘ - development was tested according to ISO 18184:2019 „Determination of antiviral activity of textile products“ at Institute for Virology and Immunology at University Wuerzburg, Germany. - The finding: „[Six hours] incubation on [Arginine] coated NW reduced viral infectivity by more than five orders of magnitude.“ In other words: An amount of, for example, 10.000.000 virus is reduced to 100 (by five orders of magnitude).

- bionic surfaces – has more than 30 years experience in wet-chemical surface modification of man-made polymers like PDMS, PP, PE, PTFE.