From the Sector

INDA, the Association of the Nonwoven Fabrics Industry, is partnering with the Waterloo Filtration Institute to deliver the FiltXPO™ technical program on October 10-11, 2023 in Chicago, Illinois. The Waterloo Filtration Institute was instrumental in recommending program topics and world-class presenters.

Engineers, scientists, and industry professionals will gain the latest insights into the filtration and separation topics affecting the industry today and into the future. The program features presentations include: filter media technologies, advancements and opportunities in filtration machinery and equipment, innovations in clean air for homes and urban areas, standards and testing, industry trends and new developments, and filtration challenges and opportunities.

The keynote for this year’s event is “IAQ Is the New Black” presented by Suzanne Shelton, President & CEO, Shelton Group. Shelton will share the latest data around consumer views on health, safety, people, and the planet. Participants will gain an understanding of the filtration opportunities and the challenges manufacturers face in communicating the value of their products.

A preview of the subject matter experts includes:

• AAF Flanders – “Air Filter Standards Activity and What It Means for Innovation”
• Ahlstrom – “Expanding Wetlaid Filtration Media Performance Through Innovation”
• Air Techniques International – “Application of Automated Filter Tester in Quality Control Testing: Importance of Consistent Aerosol Particle Size Distribution”
• American Truetzschler, Inc. – “How Really Good Filter Media Is Made”
• CEREX Advanced Fabrics – “The Antimicrobial Nylon Advantage”
• Elsner Engineering Works, Inc. – “When Does Automation Make Sense”
• Hollingsworth & Vose – “Accelerating Membrane Adoption with ROI”
• INDA – “Beyond Porter’s Five Forces – When Regulation Reshapes Markets”
• MANN+HUMMEL GmbH – “Filtration for Cleaner Urban Mobility – Introducing Horizon Europe Innovation Action Aersolfd”
• NatureWorks – “Optimizing Biopolymers to Improve Filter Performance – A Spectrum of Approaches and Opportunities”
• Palas GmbH – “Influence of Temperature and Humidity to Filter Efficiency and Dust Holding Capacity”
• Ptak Consulting – “Residential Filtration – Performance Against Infectious Aerosols”
• The University of Georgia – “Recent Advances in Melt Blown Nonwovens and Filter Media Research”

New this year to FiltXPO are Lightning Talks. Lightning Talks are an opportunity to connect with new trends, products, innovations, and ideas with speakers rotating every eight minutes. Presenting companies include Ahlstrom, Elsner Engineering Works, Inc., Gottlieb Binder GmbH, TSI, and the Waterloo Filtration Institute.

The FiltXPO exhibition takes place October 10-12 and will run concurrently with the technical program.

• Spunbond, meltblown and composite structures for new market opportunities

RadiciGroup is participating with its Advanced Textile Solutions business area at Index in Geneva from 18 to 21 April 2023. Among the Group’s products showcased are spunbond and meltblown for different application sectors, such as roofing, construction, automotive, HO.RE.CA. and filtration.

“The key message we are bringing to the fair is sustainability,” noted Enrico Buriani, CEO of the Nonwovens division of RadiciGroup Advanced Textile Solutions. “Those who already know us know that, for many years, the Group has been focused on proposing low environmental impact products and processes where sustainability is scientifically measured or certified by independent third parties. Our company is dedicated to nonwovens, which, by the way, are produced using 100% renewable energy. We have expanded our portfolio of innovative solutions for customers interested in realizing projects with sustainability as an essential requirement.”

Respunsible® is a spunbond brand manufactured from recycled polypropylene. A preliminary Life Cycle Assessment (LCA) study was carried out by RadiciGroup to demonstrate the correlation between the reduction in environmental impact and the percentage increase in recycled material. The final results demonstrate that a variable percentage of from 50 to 70% recycled material leads to a reduction in CO2 emissions of from 30 to 40%, compared to a fabric made of 100% virgin material, without comprising high technical performance.

Additionally, since RadiciGroup has achieved ISCC PLUS certification (International Sustainability and Carbon Certification), it can offer bio, biocircular or circular polypropylene spunbond and meltblown nonwovens, in which the sustainable polypropylene is biomass balanced. This certification signifies traceability along the supply chain and verifies that the certified companies meet high environmental and social standards.

“Since 2020, we have had a technologically advanced meltblown production line,” Mr. Buriani concluded. “This allows us to make composite structures, sold under the brand name Radimelt®. Now our goal is to expand our filtration applications, diversifying and developing new business, for instance vacuum cleaner bags or HVAC (heating, ventilation and air conditioning) system filters, where we can meet the high efficiency and mechanical resistance demanded, thanks to our latest generation technology.”

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.

• 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.

• Next-Gen Technologies for Nonwovens/Engineered Materials
• Canopy Respirator from Canopy Wins Innovation Award

145 professionals in product development, material science, and new technologies convened for the 11th conference edition of RISE®—Research, Innovation & Science for Engineered Fabrics, held virtually, Sept. 28-30. The event was co-organized by INDA, the Association of the Nonwoven Fabrics Industry, The Nonwovens Institute, and North Carolina State University.

The program focused on Nonwoven Material Science Developments, Sustainability, Increasing Circularity, Promising Innovations, Process Innovations, Material Innovations, Government/NGO Challenges to Single-Use Plastics, Machine-Assisted-Learning Development of Biopolymers, and Market Intelligence and Economic Insights.

Participants praised the high-quality program content, in-depth round table discussions, networking and Q&A’s where participants ask expert speakers questions pertaining to their focused presentations.

Highlights among the 26 presentations included

• Sustainable Solutions for our Plastic Planet Predicament, by Marc A. Hillmyer, Ph.D., McKnight Presidential Endowed Chair, University of Minnesota;
• Closed-Loop Recycling Pilot of Single-Use Face Masks by Peter Dziezok, Ph.D., Director of Open Innovation, Proctor & Gamble;
• Innovating a Sustainable Future for Nonwovens: A European Perspective, by Matt Tipper, Ph.D., CEO, Nonwovens Innovation & Research Institute (NIRI);
• Phantom Platform: The Polyolefin-cellulose Coformed Substrates Technology, by Fabio Zampollo, CEO and Founder of Teknoweb Materials; 
• Guiding Environmentally Sustainable Innovations – From Reactive to Proactive Life Cycle Management, by Valentina Prado, Ph.D., Senior Sustainability Analyst, EarthShift Global LLC;  
• High-Loft, Ultra-Soft Hygiene Solutions, Paul E. Rollin, Ph.D., Senior Principal Scientist – Global Hygiene, Propylene-Vistamaxx-Adhesion (PVA) Global Technology, ExxonMobil Chemical Company;
• Canadian Plastic Policy Update, by Karyn M. Schmidt, Senior Director, Regulatory & Technical Affairs, American Chemistry Council (ACC).

Other highlights included the announcement of Canopy Respirator as the winner of this year’s RISE® Innovation Award winner. The annual award recognizes innovation in areas within and on the periphery of the nonwovens industry which use advanced science and engineering principles to develop unique or intricate solutions to problems and advance the usage of nonwovens.

RISE® Innovation Award Winner
The RISE® Innovation Award was presented to Canopy for their Canopy Respirator. The productis an innovative respirator that is fully mechanical, non-electrostatic, with a filter designed for superior breathability while offering the wearer facial transparency. The breakthrough respirator features 5.5mm water column resistance at 85 liters (3 cubic feet) per minute, 2-way filtration, and a pleated filter that contains over 500 square centimeters of surface area. The patented Canopy respirator resists fluids, and eliminates fogging of eyeglasses.

• Innovations in Protection, Efficiency and Engineered Fabrics

INDA, the Association of the Nonwoven Fabrics Industry, announced the three finalists for the prestigious RISE® Innovation Award during the 11th edition of the Research, Innovation & Science for Engineered Fabrics Conference, (RISE®) to be held virtually September 28-30, 2021.  The award recognizes novel innovations in the nonwovens industry that creatively use next-level science and engineering principles to solve material challenges and expand the usage of nonwovens and engineered fabrics. These three finalists will present their innovative material science solutions as they compete for the RISE® Innovation Award.

Canopy Respirator
Canopy is an innovative respirator that is fully mechanical, non-electrostatic, with a filter designed for superior breathability while offering the wearer facial transparency. The breakthrough respirator features 5.5mm water column resistance at 85 liters (3 cubic feet) per minute, 2-way filtration, and a pleated filter that contains over 500 square centimeters of surface area. The patented Canopy respirator resists fluids, and eliminates fogging of eyeglasses.  

Evalith® 1000 Series
Johns Manville’s innovative Alpha Binder is a formaldehyde-free, high bio-carbon content, toxic-free binder formulation ideal for carpet mat applications. Alpha Binder eliminates monomer and polymer synthesis, uses a bio-degradable catalyst, and requires 70% less water in manufacturing. The resulting glass mats made of Alpha Binder are named “Evalith 1000” and reduces energy consumption during manufacturing by over 70% compared to alternative petroleum-based binders. Evalith 1000 was commercialized in North America in 2020.

Fiber Coated, Heat Sealable, Breathable, Hybrid Membrane, Fabric Protection
TiGUARD protective fabric is a construction of monolithic or hybrid imperious/moisture eliminating membranes with a surface covered with micro-fiber. This nonwoven product is a multi-layer all polyester fabric specifically for chemical and microbial protective fabrics, products, and garments. It is constructed of compatible heat seal-able materials which lend themselves to high-speed heat seal-able production and ultimately automated manufacture of garments without sewing. It is a combination of a densely flocked polyester fiber surface on polyester membrane supported by polyester scrim.
Virtual RISE™ conference attendees include technology scouts and product developers in the nonwoven/engineered fabrics industry seeking new developments to advance their businesses. These attendees will electronically vote for the recipient of the 2021 RISE® Innovation Award, on Wed. Sept. 29th. The winner will be announced Thurs., Sept. 30th.

The conference program will cover timely and relevant industry topics including: Material Science Developments for Sustainable Nonwovens; Increasing Circularity in Nonwovens; Market Intelligence & Economic Insights; Promising Innovations in Nonwovens; Process Innovations in Nonwovens; Material Innovations in Nonwovens;  the full program can be viewed on the link: https://www.riseconf.net/conference.php