From the Sector

KARL MAYER GROUP will be presenting a WEFTTRONIC® II G at the ITMA with new features and upgrades for greater efficiency. This warp knitting machine with weft insertion produces lattice structures from high-strength polyester, which are firmly established in the construction industry in particular. With a working width of 213", it offers productivity and further advantages through design innovations. New features include weft thread tension monitoring, management and the new VARIO WEFT laying system. The component for the weft insertion aims at maximum flexibility. It allows the patterning of the weft yarn to be changed quickly and easily electronically, without mechanical intervention during yarn insertion and without limits on repeat lengths. In addition, there is less waste.

The KARL MAYER GROUP also supports its customers with well thought-out Care Solutions. The new support offers include retrofit packages for retrofitting control and drive technology for weft insertion and composite machines, and service packages that bundle various services. These include machine inspections and the replacement of all drive belts. The customer benefits from fixed prices that cover the costs of technician assignments, various discount options and transparent services.

A new solution for the vertical greening of cities is presented from the field of application for technical textiles. The core of the innovation is a grid textile produced on warp knitting machines with weft insertion by KARL MAYER Technische Textilien GmbH. The knitted lattice fabric is made of flax. It is used as a climbing aid for fast-growing plants, and after the greening phase, in autumn, it can be recycled together with these plants as biomass in pyrolysis plants to produce electricity and activated carbon. In summer, the planted sails lower the ambient temperature through evaporation effects. In addition, photosynthesis creates fresh air and binds CO2. Other important advantages are low soil requirements and flexible placement in public spaces. The greening system was developed by the company Micro Climate Cultivation, OMC°C, with the support of KARL MAYER Technische Textilien.

The KARL MAYER GROUP will also be exhibiting a sustainable composite solution made from natural fibres. The reinforcing textile of the innovative lightweight material is a multiaxial non-crimp fabric, which was also produced from the bio-based raw material flax on a COP MAX 4 from KARL MAYER Technische Textilien. The boatbuilding specialist GREENBOATS uses natural fibre composites to achieve sustainable products. The fact that it succeeds in this is shown, for example, by the Global Warming Potential (GWP): 0.48 kg of CO2 per kilogram of flax reinforcement compares with 2.9 kg of CO2 per kilogram of glass textile.

Ein neuartiges, ebenso umweltfreundliches wie kostensparendes Verfahren zur Herstellung von Carbonfasern aus Lignin ist an den DITF entwickelt worden. Es zeichnet sich durch hohes Energiesparpotential aus. Die Vermeidung von Lösungsmitteln und die Nutzung natürlicher Rohstoffe machen das Verfahren umweltfreundlich.

Carbonfasern werden im industriellen Maßstab gewöhnlich aus Polyacrylnitril (PAN) hergestellt. Die Stabilisierung und die Carbonisierung der Fasern geschieht dabei mit langer Verweildauer in hochtemperierten Öfen. Das erfordert viel Energie und macht die Fasern teuer. Dabei entstehen giftige Nebenprodukte, die aufwendig und energieintensiv aus dem Herstellungsprozess abgetrennt werden müssen.

Ein neuartiges, an den DITF entwickeltes Verfahren ermöglicht hohe Energieeinsparungen in all diesen Prozessschritten. Lignin ersetzt dabei das Polyacrylnitril für die Herstellung der Präkursorfasern, die in einem zweiten Prozessschritt zu Carbonfasern umgewandelt werden. Lignin als Ausgangsmaterial für die Herstellung von Carbonfasern hat bisher kaum Beachtung in der industriellen Fertigung gefunden. Lignin ist ein günstiger und in großen Mengen verfügbarer Rohstoff, der als Abfallprodukt in der Papierproduktion anfällt.

Im neuen Verfahren zur Herstellung von Ligninfasern wird zuerst Holz in seine Bestandteile Lignin und Cellulose getrennt. Ein Sulfit-Aufschluss ermöglicht die Erzeugung von Lignosulfonat, das in Wasser gelöst wird. Die wässrige Lösung von Lignin ist das Ausgangsmaterial für das Spinnen der Fasern.
Der Spinnprozess selbst erfolgt im sogenannten Trockenspinnverfahren. Dabei presst ein Extruder die Spinnmasse durch eine Düse in einen beheizten Spinnschacht. Die entstehenden Endlosfasern trocknen im Spinnschacht schnell und gleichmäßig. Das Verfahren benötigt weder Lösungsmittel noch giftige Additiven.

Die anschließenden Schritte zur Herstellung von Carbonfasern - die Stabilisierung in Heißluft und die anschließende Carbonisierung im Hochtemperaturofen - ähneln denen des üblichen Prozesses bei Verwendung von PAN als Präkursorfaser. Allerdings lassen sich die Ligninfasern im Ofen besonders schnell mit Heißluft stabilisieren und benötigen nur relativ niedrige Temperaturen in der Carbonisierung. Die Energieersparnis in diesen Prozessschritten gegenüber PAN liegt bei rund 50% und bedeutet einen echten Wettbewerbsvorteil.

Aus Wasser gesponnene Ligninfasern bieten Vorteile
Neben der umweltfreundlichen, da lösemittelfreien Herstellung, und der Energieeffizienz bietet das neue Verfahren weitere Vorteile gegenüber PAN: Lignin ist ein überaus günstiger und leicht verfügbarer Rohstoff, der aus Holz gewonnen wird. Die Verwendung eines natürlichen Rohstoffes für die Erzeugung von hochfesten Carbonfasern folgt dem Nachhaltigkeitsgedanken in der Produktion.

Der Trockenspinnprozess erlaubt hohe Spinngeschwindigkeiten. Hierdurch wird in kürzerer Zeit deutlich mehr Material produziert, als es mit PAN-Fasern möglich ist. Das ist ein weiterer Wettbewerbsvorteil, der dennoch keine Kompromisse an die Qualität der Lignin-Präkursorfasern zulässt: Diese sind äußerst homogen, haben glatte Oberflächen und keine Verklebungen. Solche strukturellen Merkmale erleichtern die Weiterverarbeitung zu Carbonfasern und letztlich auch zu Faserverbundwerkstoffen.

Zusammenfassend lässt sich sagen, dass die in dem neuen Spinnverfahren gewonnenen Präkursorfasern aus Lignin gegenüber PAN deutliche Vorteile in der Kosteneffizienz und in ihrer Umweltverträglichkeit zeigen. Die mechanischen Eigenschaften der aus ihnen hergestellten Carbonfasern sind hingegen nahezu vergleichbar – sie sind ebenso zugfest, widerstandsfähig und leicht, wie es von marktgängigen Produkten bekannt ist.

Besonders interessant dürften Carbonfasern aus Wasser gesponnenen Ligninfasern für Anwendungen in der Bau- und Automobilbranche sein, die von Kostensenkungen im Produktionsprozess in hohem Maße profitieren.

• ESD protection in harsh environments:
• Polymer-coated chemical-resistant fabrics and fireproof special textiles with expanded electrostatic discharge (ESD) safety function have been developed.
• Graphene nanotubes used as an electrostatic dissipative material make it possible to add ESD protection without compromising resistance to aggressive environments.
• Efficient working loadings starting from 0.06% are sufficient for stable anti-static properties fully compliant with safety standards and position graphene nanotubes far ahead of other conductive materials.

Protective clothing, upholstery, and industrial fabrics that experience harsh conditions require advanced performance. Depending on the final application, specialty textiles can be augmented with flame retardancy, durability, chemical protection, and other properties. Additionally, ESD protection is obligatory in the chemical, rescue, mining, oil & gas, automotive manufacturing, and many other industries that are subject to safety regulations.
 
In applications where multifunctionality of textile is required, graphene nanotubes overcome the limitations of other conductive materials such as unstable anti-static properties; degradation of strength, or chemical or fire resistance; complicated manufacturing processes; dusty production; carbon contamination on the material’s surface; or limited color options. Recent developments show that graphene nanotubes provide ESD protection to textiles in full compliance with safety standards and without degrading the textile’s resistance to harsh environments, greatly enhancing the value of textiles.
 
One such example is textiles coated with fluoroelastomer (a polymer that is highly resistant to chemicals) augmented with graphene nanotubes from OCSiAl. Nanotubes provide the material with surface resistivity of 10^6–10^8 Ω/sq compliant with EN, ISO, and ATEX standards for personal protective equipment. This new technology opens the door for the fabric to be used in high-level protective suits, combining exceptional protection from chemicals with electrostatic discharge protection.
 
Another example is how graphene nanotube technology is being acknowledged as a replacement for metal yarns in fireproof and anti-static textiles, protecting against sparks, splashes of molten metal, high temperatures, and the risk of sudden electrostatic discharge. While metal yarns require a specific knitting process and storage conditions, incorporating nanotubes in a fabric does not require any changes in the manufacturing process as the water-based dispersion is introduced into the fabric at the fluoro-organic treatment stage. The fabric with OCSiAl’s graphene nanotubes has been proven to maintain the pre-set level of ESD protection (surface resistance of 10^7 Ω) after numerous washes.
 
Permanent and stable electrical conductivity, facilitated by graphene nanotubes, is not only a matter of safety but brings additional value in augmenting dust-repellent properties and touchscreen compatibility for comfort and time savings. At the same time, the ultralow nanotube concentrations result in maintained manufacturing processes and mechanical properties, and improve product aesthetics by making it possible to use a wide range of colors. Altogether, these benefits allow textile manufacturers to create next-generation special textiles with expanded functionality.

Due to the continued good business development, especially in the Carbon Fibers Business Unit, SGL Carbon SE is increasing its Group sales and earnings guidance for the current fiscal year and now expects Group sales of approximately €1.2 billion (previously: approximately €1.1 billion). The company expects to achieve adjusted EBITDA (EBITDA pre = earnings before interest, taxes, depreciation and amortization before one-off effects and non-recurring items) of €170 - €190 million (previously: €130 - €150 million) in 2022.

Based on lower prices for acrylonitrile as main raw material of the Business Unit Carbon Fibers as well as higher than expected customer demand for acrylic and carbon fibers combined with consistently good production capacity utilization and capability, the management of SGL Carbon SE assumes an improved earnings development of this Business Unit.

SGL Carbon assumes that the factors mentioned will continue at least until the end of the year and that the earnings situation of the Business Unit Carbon Fibers will exceed previous expectations. Combined with the continued good business development of the other three Business Units (Graphite Solutions, Process Technology and Composite Solutions), an improvement in the sales and earnings situation at Group level is expected.

In line with the forecast increase for adjusted EBITDA (EBITDA pre) to between €170 and €190 million (previously: €130 - €150 million), the company is forecasting adjusted EBIT (earnings before interest and taxes and before one-off effects and non-recurring items) of between €110 and €130 million (previously: €70 - €90 million). The forecast for return on capital employed (ROCE) of originally 7% - 9% has been raised to 10% to 12% corresponding to the development of earnings. The expectations for free cash flow (significantly below previous year's level of €111.5 million) remain unaffected by the expected improvement in sales and earnings.

The updated forecast for fiscal 2022 has been prepared on the basis of the currently prevailing market environment and assumes no deterioration in the general conditions, in particular due to the war in Ukraine and its consequences for the global economy.
 
The definition of key figures used in this release is aligned to the Annual Report 2021. There were no changes in the scope of consolidation or accounting methods compared with the previous guidance.

Beaulieu International Group invites EuroGeo7 attendees to discover geotextile solutions promoting greater sustainability for future civil engineering projects. Specialists from Beaulieu Fibres International (BFI) and Beaulieu Technical Textiles (BTT) will present high-performance geosynthetics through high tenacity fibres for lightweight, nonwoven geotextiles, and a range of high durability woven geotextile solutions with an environmentally beneficial impact.

“We are delighted to sponsor EuroGeo7 and to be finally on-site, following a two-year postponement of the event. EuroGeo7 is bringing the geotextile community together to further promote and develop geosynthetics in a fast changing global economy striving for growth while reducing its carbon footprint along the supply chain, " comment from Jefrem Jennard, Sales Director Fibres, and Roy Kerckhove, Sales Director Technical Textiles. “Geotextiles provide highly versatile, durable and natural resource-saving alternatives in large infrastructure works, and offer durable protection in erosion control and waste/water management projects. We are continuously developing our fibres and finished engineering textiles with proven sustainability-enhancing benefits to progress product development and customer sustainability goals on fossil carbon reduction, while taking concrete steps to reduce our own environmental footprint.”
 
Sustainability improvement is key to the long-term strategy of Beaulieu International Group, and it is committed to supporting the geotextile industry by targeting and accelerating change and communicating the sustainable performance of its products. The UN Sustainable Development Goals are integrated into its business and are the foundations of the new Route 2030 Sustainability Roadmap.

For manufacturers of nonwoven geotextiles, BFI’s high-tenacity HT8 staple fibres enable customers to achieve nonwovens with high mechanical performance at reduced fibre weight. The HT8 high tenacity fibres are designed in a way that customers can meet the industry durability standards for a longer service lifetime, supporting more sustainable design and resource reduction over time. BTT’s woven geotextiles are amongst the most sustainable in the industry and provide a wide range of functions, including separation, filtration, reinforcement and erosion control.

BFI and BTT have conducted lifecycle assessments to calculate their activities' carbon footprint and solutions and have received external recognition for their ongoing sustainability efforts. For example, in 2022, BFI was awarded a Silver EcoVadis sustainability rating, and BFI and BTT are proud recipients of the Voka Charter for Sustainable Entrepreneurship 2022.

With over 60 participants from Europe and Turkey, the first SMCCreate Design Conference took place in Antwerp from 28-29 June. The conference was jointly organised by AVK – Federation of Reinforced Plastics and the European Allicance for SMC BMC. The topics covered the wide spectrum of SMC and BMC manufacturing, from design to sustainability solutions. 16 speakers from different European countries showed what is important in component manufacturing and design, and which solutions the companies offer in regard to materials, performance and much more.

After an overview of the general market developments and how the economic requirements affect component manufacturing, the focus was on the possibilities to enable sustainable design with SMC/BMC. In the second conference section „part design“, the topics of design and modelling, design with structural analysis and flow simulation, standards, and best class solutions as well as surface modification were presented.

A rather newer field was highlighted on Day 2 with Carbon SMC, discussing mobility and automotive applications. These included the integration of multiple material technologies, not forgetting the possibility of implementing green deal strategies here too. The advantages of SMC in automotive components for electrification were explained in more detail. The conference concluded with a sporty presentation on the development of a carbon SMC rear frame for a downhill mountain bike.

SHIMA SEIKI MFG., LTD. of Wakayama, Japan, along with its Italian subsidiary SHIMA SEIKI ITALIA S.p.A., will be participating in the Techtextil exhibition in Frankfurt, Germany from the 21st till the 24th of June 2022.

On display will be SHIMA SEIKI’s latest innovation in flat knitting technology as applied to the field of technical textiles—a prototype weft knitting machine capable of multi-axial yarn insertion. Fabrics produced on this machine use inlay technique for the production of hybrid textiles that combine the stretch characteristics of knitted fabrics with the stability of woven textiles, suited to various technical applications. To this, warp yarn is inserted to further expand its capability to produce 3D-shaped carbon fiber and composite preforms directly on the machine. This is made possible by taking advantage of the fact that flat knitting as a textile production method is capable of producing end products that are shaped-to-form and with added thickness. Compared to current methods of preform production, savings in post-processing time, material, labor and associated costs are immense, realizing efficient and sustainable production. SHIMA SEIKI’s own yarn unwinding technology is also used for optimum yarn feed and tension for use with technical yarns that are otherwise difficult to knit. Industrial textile samples knit on the multi-axial machine will also be available for examination on-site.

SHIMA SEIKI's SDS®-ONE APEX4 3D design system will be available for demonstrations as well. Of particular interest should be its ultra-realistic simulation capability that realizes Virtual Sampling. When countless variations must be evaluated before arriving at a final design, virtual product samples can be used to streamline the decision-making process by minimizing the enormous amount of time, cost and material normally associated with producing actual samples for each variation. When approved, the same data can be converted to machine data for immediate knitting, significantly reducing lead times.

Standard & Poor's Global Ratings (S&P) raises its long-term rating for SGL Carbon to B- and its issue rating on its financial instruments to B. The outlook for the company is rated as stable by the renowned rating agency.

S&P Global Ratings explains the upgrade of SGL's rating with the company's improved capital structure and the reduction of net debt. The rating agency expects SGL Carbon to generate positive free cash flow in the coming years, which will support the reduction in absolute debt.

For the future development of SGL Carbon, S&P assumes an improvement in profitability based in particular on the expansion of products and materials for the future-oriented core markets of mobility, energy transition and digitalization, besides the savings from the restructuring.

"We are pleased that our operational successes and the already advanced trans-formation of SGL Carbon have been honored by the two major rating agencies - Moody's and S&P - by upgrading the ratings. We also see this as a motivation for the further development of SGL Carbon," explains Thomas Dippold, Chief Financial Officer of SGL Carbon SE.

Hexcel will present a wide range of high-performance composite innovations for the Automotive, Marine, Wind Energy and Recreation markets during JEC World 2022 in Paris on May 3 – 5.

G-Vent Technology for Marine Structures
Hexcel has developed a new technology for out-of-autoclave (OoA) processing that delivers a game-changing reduction in process time and cost for marine manufacturers without compromising mechanical performance. Hexcel has leveraged its experience in aerospace and wind energy to develop its new G-Vent technology for OoA processing of highly loaded, thick section marine structures such as masts, foils, and wind-assisted ship propulsion (WASP) components. A full range of Hexcel marine prepregs are now available with integrated G-Vent technology, reducing the requirement for debulking steps and ensuring extremely low porosity (<1%) regardless of the laminate thickness. Leading marine non-destructive testing specialists Q.I. Composites recently confirmed that the thick section G-Vent panels they had evaluated had void contents and laminate quality in line with state-of-the-art autoclaved prepreg components. Visitors to the Hexcel stand will see a unique 400mm carbon cube cured in a single stage using 695 layers of HexPly M79 carbon fiber UD600 prepreg with G-Vent technology.

New HexPly® Nature Range Sustainable Prepregs
HexPly® Nature Range prepregs feature proven resins such as HexPly M49, M78 and M79 with bio-derived epoxy resin content. Created for use in all industrial markets, HexPly Nature Range materials can be seamlessly integrated into existing production processes, maintaining consistent mechanical performance and processing properties. A dedicated sustainability corner of the Hexcel stand will detail Nature Range products optimized for automotive, marine, wind energy and winter sport applications. The display will include an alpine ski produced by leading manufacturer Tecnica Group Ski Excellence Center which produces skis for Blizzard and for Nordica using HexPly Nature M78.1 UD flax prepreg material. In addition to the reduced environmental impact of the sustainably grown reinforcement, the flax fiber laminates also improve impact resistance and vibration damping in the ski.

HexPly® XF Surface Technology for Improved Part Surface Finish Quality
HexPly XF is a lightweight, semi-preg material that replaces traditional in-mold gel coat. It eliminates time-consuming refinishing work typically required to obtain a paint-ready surface and produces lighter, more consistent parts with shorter cycle times and a cleaner working environment. Visitors to the stand will see a composite panel illustrating a high-quality painted surface enabled with XF technology in a diverse range of industrial applications such as super yacht roof parts, Class A surface automotive panels, and both prepreg and infused wind turbine blades.

HexPly® M49 Prepreg for Automotive Visual Carbon Parts
HexPly M49 is easy to process and is especially suitable for visual carbon fiber-look applications such as the Brabus hood scoop on display on the Hexcel stand at JEC.

HexPly® Prepregs and HiMax® Reinforcements for Performance Marine Structures
Using a scale model of a Gunboat 68 performance sailing catamaran, Hexcel will illustrate how its HexPly and HiMax materials provide manufacturers with a complete set of lightweight composite solutions for high-performance marine structures. HexPly prepreg was selected for critical structural parts of the Gunboat 68 and provides very high mechanical performance including high dry and wet Tg.

Heavyweight HiMax reinforcements offer high deposition rates and remain easy to handle after cutting, making them highly suitable for industrial applications. In combination with a lightweight PrimeTex® woven fabric, the package of carbon fiber HiMax materials developed for the Gunboat 68 enabled consistent resin flow during infusion with reduced surface print-through.

Hexcel Fibers and Reinforcements for Lightweight Sporting Equipment
Sporting equipment manufacturers rely on Hexcel composite materials to deliver the ultimate performance at the lowest possible weight. Hexcel will exhibit a number of the latest high-performance sporting equipment applications such as a Bauer hockey stick featuring PrimeTex 98 gsm AS4C 3K fabric and a Corima tri-spoke cycling wheel made with lightweight Hexcel carbon fiber UD tape. Hexcel will also demonstrate how its HexTow® carbon fibers are used in key leisure and marine applications by displaying an AEROrazr solid carbon rigging component manufactured by spar and rigging manufacturer Future Fibres for the 36th America’s Cup.

Each year, since its creation more than 20 years ago, the JEC Composites Innovation Awards celebrate successful projects and cooperation between players of the composites industry. The competition has especially shined a light on some 203 companies and 499 partners, awarding them for the excellence of their composite innovations.

The ceremony took place on April 26th in Paris. Highlighted by the presence of jury members, finalists and winners but most importantly, as it was livestreamed, the gathering of many people all around the world to watch the awaited results.

The enthusiasm for the Innovation Awards, exactly 7 days prior to JEC World, is a good sign of the industry’s eagerness to get back together and ensure the future of composites innovation.

• Aerospace Application
  Diab (Sweden): 100% thermoplastic panel for cabin interiors
• Aerospace – Process
  MTorres Disenos Industriales S.A.U. (Spain): Innovative Infusion Airframe Manufacturing System
• Automotive & road transportation – Structural
  Jaguar Land Rover Limited (UK): TUCANA
• Automotive & road transportation – Surfaces
  AUDI AG (Germany): Seamless Integration of Flexible Solar Film in FRP
• Building & Civil Engineering
  Windesheim (Netherlands): Structural Re-Use of Thermoset Composites
• Design, Furniture and Home
  Kairos (France): Kairlin®, a new recyclable & compostable material
• Equipment and Machinery
  Fibraworks GmbH (Germany): Winding the future – fibraforce technology
• Maritime Transportation & Shipbuilding
  Voith Composites SE & Co. KG (Germany): Marine Rotor Blades made of Voith ‘Carbon4Stack’
• Renewable Energy
  Siemens Gamesa Renewable Energy (Denmark): RecyclableBlade
• Sports, Leisure & Recreation
  Bcomp Ltd. (Switzerland): Eco-joint from thermoset race and thermoplast road