From the Sector

Up to the age of three, a baby uses around 5,000 diapers. Despite the convenient handling of common disposable diapers, parents are increasingly looking for a healthy and sustainable alternative to these products to avoid waste. In Germany alone, 10 million diapers are disposed of every day.

Ways to solve this dilemma, would be disposable products that are made from bio-based or biodegradable materials, or reusable products with a longer life span replace disposable products.

Founding team Luisa Kahlfeldt and Caspar Böhme combine both with their "Sumo Diapers." These cloth diapers are made entirely of sustainable materials while offering high performance and innovative design.

The Sumo Diaper is a fitted cloth diaper that consists of a waterproof cover and absorbent inserts. The cover is sewn in such a way that a pocket is formed: this is where the absorbent pad is inserted to prevent slipping.

To further enhance the performance of this absorbent pad, the Sumo team partners with the viscose special fibre manufacturer Kelheim Fibres, who brings decades of experience from the hygiene sector, especially for sensitive applications where high absorbency is required (such as tampons). Together, Sumo and Kelheim Fibres have developed a high-performance absorbent pad that uses no fossil materials.

The basis are functionalised specialty viscose fibres with adapted cross-sections. Needle-punched / thermobonded nonwovens with a blend of specialty viscose and PLA bicomponent fibres were chosen to ensure the product's washability. PLA stands for polylactic acid made from natural and renewable raw materials. By combining nonwovens, usually found mainly in the single-use sector, with reusable products, Sumo and Kelheim Fibres have chosen a completely new approach.

Inside the pad, the speciality fibres from Kelheim score with their special properties: In the distribution layer (ADL), the trilobal cross-section of the Galaxy® fibre forms capillary channels that enable efficient and optimized liquid distribution and thus optimum use of the capacity of the absorbent core, offering the lowest rewet values.

In the absorbent core, the segmented hollow fibre Bramante stores liquid not only between but also inside the fibre. The liquid remains there even when pressure is applied to the construction, providing excellent rewet values. Bramante can absorb up to 260% of its own weight in liquid. Cotton only achieves values of around 50% here.

The innovative nonwoven construction with the speciality fibres from Kelheim performs significantly better in tests in terms of air permeability, liquid absorption and rewetting than commercially available solutions made of synthetic fibres or cotton in knitted structures, and has earned Sumo diapers a place among the finalists for the IDEA® Long-Life Product Achievement Award.

The launch is scheduled for the first of May.

The AVK – Industrievereinigung Verstärkte Kunststoffe – has once again presented its Innovation Awards to companies, institutes and their partners. Three composites innovations were recognised in each of the three categories – “Innovative Products/Applications”, “Innovative Processes” and “Research and Science” – at the new event JEC Forum DACH on 23 November 2021, the first edition of which was held in Frankfurt.

“As usual, the submissions included a lot of very interesting and promising products and processes this year. The Innovation Awards highlight the outstanding efficiency, cost-effectiveness and sustainability of fibre-reinforced plastics as well as the companies and institutes operating in the sector,” explains Dr. Elmar Witten, Managing Director of the AVK. The jury of leading experts from the industry honoured the following innovations this year:

Category “Research and Science”
First place in the “Research and Science” category was awarded to the German Aerospace Center (DLR) for its Bondline Control Technology (BCT). This innovative process is used for quality control and assurance of bonded joints. The core element is a porous fabric which is applied to a joining surface using an epoxy adhesive or matrix resin. Peeling away the fabric creates a chemically reactive and undercut surface and can also be used as a test to check adhesion to the substrate. BCT has potential in a variety of possible applications. For example, peel ply can be replaced by BCT fabric to produce composite components with an optimised joining surface. The cost-effective BCT peel test is suitable for coupon testing and process control. In addition, the combined adhesion test and surface pre-treatment can be used for quality assurance of bonded repairs on fibre composite structures.

Second place was taken by the Institute of Textile Technology (ITA) at RWTH Aachen University and its partners AEROVIDE GmbH, Altropol Kunststoff GmbH, Basamentwerke Böcke GmbH, TechnoCarbon Technologies GbR with “StoneBlade – Lightweight construction with granite for the wind industry”. This innovation enables manufacturers to reduce the amount of non-recyclable materials used in rotor blade construction. At the same time, it reduces the weight of these components and improves the mechanical properties relating to the stability of wind turbines. The innovative approach replaces glass-fibre reinforced plastic in the blade components with hard rock – a natural, cost-effective and recyclable lightweight material. The slabs of rock are cut and ground to a thickness of just a few millimetres and embedded in a fibre composite laminate with carbon fibre, which stabilises them for alternating load cases. The pre-stressed material is pressure-stable in the composite and can absorb tensile forces in the event of continuously alternating loads without any loss of stiffness.

Third place went to the Dresden University of Technology – Institute for Lightweight Construction and Plastics Technology (ILK) with its partner Mercedes Benz AG for the interdisciplinary development of a highly integrated inductive charging module for electric vehicles. The ultra-thin charging module was designed to make optimum use of space in the vehicle underbody without reducing ground clearance. An interdisciplinary approach was adopted for the development process. This involved the electrical, mechanical and process characterisation of high-frequency Litz wires, ferromagnetic foil and metal wire cloth as well as the creation of a simulation model. The result is a demonstrator for a charging system with a structural height of 15 mm and a total weight of 8 kg. It achieves a transmission efficiency of up to 92 percent at 7.2 kW nominal power and active air cooling. The hardware demonstrator was fabricated in a 3-step process using RTM and VARI techniques.

Overview of all the winners in the three categories:
Category “Innovative Products/Applications”
1st Place: “Traffic signs from Nabasco (N-BMC)” – Nabasco Products BV and Lorenz Kunststofftechnik GmbH, partners: Pol Heteren BV and NPSP BV
2nd Place: “Novel, ultratough vinyl ester resin for the construction of large marine vessels” Evonik Operations GmbH
3rd Place: “Air intake housing with a multi-material design for gas turbines” – MAN Energy Solutions SE, Leichtbau-Zentrum Sachsen GmbH and Leichtbau-Systemtechnologien KORROPOL GmbH.
Category “Innovative Processes”
1st Place: “In-mould wrapping” off-tool, film-coated, fibre composite components for exterior applications – BMW Group, Partner: Renolit SE
2nd Place: “Adaptive automated repair of composite structural components in the aviation sector” – Lufthansa Technik AG, Partner: iSAM AG
3rd Place: “Automated surface pre-treatment using VUV excimer lamps” – CTC GmbH
Category “Research and Science”
1st Place: “Bondline Control Technology (BCT)” – German Aerospace Center (DLR)
2nd Place: “StoneBlade – Lightweight construction with granite for the wind industry” – Institute of Textile Technology at RWTH Aachen University, Partners: AEROVIDE GmbH, Altropol Kunststoff GmbH, Basamentwerke Böcke GmbH, TechnoCarbon Technologies GbR
3rd Place: “Interdisciplinary development of a highly integrated inductive charging module for electric vehicles” – Dresden University of Technology – Institute for Lightweight Construction and Plastics Technology (ILK), Partner: Mercedes Benz AG

Submissions for the next Innovation Award can be made from the end of January 2022.

Kelheim Fibres GmbH is announcing that with effect from 01. October 2021, or as contracts and agreements allow, prices for its range of viscose fibres will be increased by €0,20/kg. In addition, freight cost adjustments will be applied on an individual customer basis. In cases where energy cost adjustments are not included in contracts and agreements, a temporary energy surcharge will be applied.

“The measures we are taking are absolutely necessary to ensure that Kelheim Fibres remains in a position to supply fibres with the levels of quality and service expected by our customers,” says Matthew North, Commercial Director of Kelheim Fibres.

The year 2021 has brought extraordinary challenges for society and for industry. Alongside the Covid-19 pandemic, recovering demand, disruption in the global freight systems and dramatically increased energy costs are driving significant cost increases for raw materials and negatively influencing supply chains. Prices for energy and freight currently lie well outside their historical ranges.

Es sei der Kelheim Fibres GmbH gelungen, die Auswirkungen der Pandemie auf die Faserproduktion zu begrenzen. Aber als Unternehmen mit eigener Kraft-Wärme-Kopplungsanlage und einem hohen Exportanteil in Staaten außerhalb Europas hätten sich diese Kostenfaktoren im zweiten und dritten Quartal 2021 stark negativ auf die Margen ausgewirkt. Da die Energiekosten auf einem beispiellos hohen Niveau verharrten und im vierten Quartal möglicherweise weiter ansteigen werden, keine Entlastung bei den hohen Frachtkosten absehbar sei und auch die Rohstoffkosten auf hohem Niveau blieben, müsse das Unternehmen Maßnahmen ergreifen, um eine weitere Margenerosion zu verhindern.

Kelheim Fibres GmbH had succeeded in limiting the impact of the pandemic on fibre production. However, as a company operating its own cogeneration energy plant and with a high level of export business outside Europe, these cost factors have had a severe negative impact on margins during the second and third quarters of 2021. With energy costs set to remain at unprecedentedly high levels and potentially increase further in the fourth quarter, no relief to the high level of freight costs foreseeable, and raw material costs also remaining at a high level, the company needs to take steps to prevent further margin erosion.

Kelheim Fibres’ Business Managers will be in contact with individual customers during September with further information.

• International Conference on Cellulose Fibres 2022, 2-3 February in Cologne, Germany and online – Call for Abstracts and Posters – 300 participants and 30 exhibitors are expected

Cellulose fibres are among the winners of the European 'Single-Use Plastics Directive (SUPD)', which has been in effect since July 2021 and entails plastic bans for a variety of single-use products. Cellulose is the main component of plant cell walls and a natural polymer. As a result, disposable products made of cellulose and cellulose fibres are not labelled as plastic and are explicitly excluded from the regulation. The success story of cellulose fibres will thus continue at a rapid pace with new developments and applications.

Building on the success of this year's conference with 200 participants, the International Conference on Cellulose Fibres 2022 will again cover the entire value chain, from lignocellulose, chemical pulp, cellulose fibres such as rayon, viscose, modal or lyocell and new developments to a wide range of applications: Textiles of all kinds, nonwovens such as wet wipes and new areas such as composites or nanocellulose in the food industry. All these sectors have gained considerable momentum in recent years.

Cellulose fibres have been a success story within the textile market with a compound annual growth rate (CAGR) between 5 and 10 % over the last ten years and similar growth rates are expected in the coming decade. This makes cellulosic fibres the fastest growing fibre group in the textile industry and also the largest investment sector in the global bioeconomy. The challenge now is to achieve a balance between the ongoing capacity expansion and the growing demand, to avoid overcapacity while still meeting rising demand from the major brands. These high growth rates are driven by the increased demand for natural fibres (and bottlenecks in cotton production), the microplastic issues, and bans on plastics in disposable applications. All three factors will continue to play an important role in the development of the sector in the future.

Companies are now invited to submit presentations as well as their latest developments for the Innovation Award.

Main topics of the conference:

• What is the impact of plastic bans on single-use products?
• The avoidance of microplastics and the transformation from fossil to renewable raw materials?
• What are the biggest challenges in developing new value chains and growing market demand?
• Which alternative raw materials for cellulose fibres are suitable and available?
• What are the latest technology and market trends?
• What are the future market dynamics? Who is active and interested in the cellulose fibre sector?
• What ecosystems and partnerships are needed to promote innovation in line with new market requirements?
• How will the political environment develop in the future?
• How can the sustainability of cellulose fibre production be further improved?

 
Call for Abstracts
Abstract submission is open now. You are welcome to present your latest products, technologies, developments or market trends. Submit your abstract as soon as possible.
Deadline for submission: 15 October 2021
https://cellulose-fibres.eu/call-for-abstracts

Call for Posters
Deadline for submission: 31 December 2021
https://cellulose-fibres.eu/call-for-posters

Call for Innovations
More information about the innovation award and the application can be found at
Deadline for submission: 15 November 2021
https://cellulose-fibres.eu/award-application

Sponsoring Opportunities: https://cellulose-fibres.eu/sponsoring

Materials science innovation pioneer Hologenix, LLC, whose CELLIANT® infrared technology is an ingredient in brands across many categories, has another important partner, bedding specialist Centa-Star. Based in Stuttgart, Germany and available throughout Europe, Centa-Star has introduced a new line of “Regeneration” duvets and pillows infused with CELLIANT mineralized fibers.  

Regeneration products, thanks to CELLIANT, are thermo-regulating with maximum breathability, promoting stronger performance, faster recovery and better sleep.

CELLIANT thermo-reactive minerals absorb the body heat and convert it into infrared energy, which is reflected back to the body.  The resulting temporary increase in blood flow and local circulation helps regulate body temperature and increases tissue oxygen. This leads to a more restful, restorative sleep as well as faster recovery and stronger performance.

Centa-Star Regeneration products are available online throughout Europe in selected department stores in Germany, Austria and Switzerland, including KaDeWe Berlin, Betten Rid in Munich, Karstadt or Kaufhof stores, in well-sorted furniture shops, in upscale specialist shops.

FibreCoat GmbH from Aachen, Germany, together with DBF Deutsche Basalt GmbH, developed a completely new type of fibre material to shield electromagnetic radiation from digital end devices, medical technology or e-car batteries cheaply and effectively. The joint project was awarded the overall prize of the“ IQ Innovationspreises Mitteldeutschland“ on 24 June in an online event broadcast live from Leipzig.

The prize is endowed with €15,000 and was sponsored by the Halle-Dessau, Leipzig and East Thuringia Chambers of Industry and Commerce.

Electromagnetic radiation from smartphones, hospital diagnostics and electric car batteries must be shielded so that they do not inter-fere with each other. To prevent mutual interference, they have so far been covered with metal fibre fabrics, a very time- and energy-consuming and thus expensive procedure. The new material from Basalt Faser GmbH and FibreCoat GmbH prevents this with a fibre core made of melted, thinly drawn basalt, which is coated with aluminium and bundled into the so-called AluCoat yarn. This yarn remains just as conductive and shielding, but is lighter, stronger, cheaper and more sustainable than previous alternatives. In addition, there are further advantages:

• The number of process steps required is reduced from ten to one.
• 1,500 metres of yarn are produced per minute instead of the previous five metres.
• The energy required is only 10 per cent of the previous amount.

The result is a price that is twenty times lower.

The textile made of AluCoat fibres is versatile and flexible: as wallpaper it can shield 5G radiation in offices or medical rooms or encase batteries and thus ensure the smooth functioning of electric cars. AluCoat is already being used in some companies. A European fibre centre in Sangerhausen is being planned for mass production.

The two innovative companies DBF Deutsche Basalt GmbH and FibreCoat GmbH from East and West combine the two materials basalt and aluminium to protect against electromagnetic radiation. In doing so, they coat basalt with aluminium and, through this novel combination, create an inexpensive, sustainable and quickly produced alter-native for a market worth billions.

FibreCoat GmbH from Aachen is a spin-off of the Institut für Textiltechnik (ITA) of RWTH Aachen University; the managing directors Dr Robert Brüll and Alexander Lüking and Richard Haas have completed their doctorates at the ITA or are in the process of preparing their doctorates. Georgi Gogoladze, Managing Director of Deutsche Basaltfaser GmbH, also studied at RWTH Aachen University. The two managing directors Brüll and Gogoladze know each other from their student days.