From the Sector

Kelheim Fibres, a manufacturer of specialty viscose fibres, showcases its latest developments at this year's Global Fiber Congress in Dornbirn. The focus is on innovative solutions that not only promote environmental sustainability but also strengthen the European supply chain.

In his presentation "Towards high performing plant-based AHP products - a joined approach of Pelz and Kelheim Fibres," Dr. Ingo Bernt, Project Leader of Fiber & Application Development at Kelheim Fibres, together with Dr. Henning Röttger, Head of Business Development at PelzGROUP, introduces the development of a plastic-free yet high-performance panty liner. The water-repellent Kelheim specialty fibre Olea plays a crucial role in both the top and backsheet of the panty liner. This product emerged from the ambition to offer eco-friendly alternatives to conventional disposable hygiene solutions without compromising on product performance.

A similar approach is pursued in the second presented project. Under the title "Performance Fibres meet Sustainable Design - example of a reusable Baby Diaper," Natalie Wunder, Project Leader from Kelheim Fibres' New Business Development team, together with Caspar Böhme, Co-Founder of Sumo, introduce the washable and reusable SUMO diaper. Made from biobased materials and featuring a unique construction with Kelheim specialty fibres, this combination offers double environmental benefits compared to conventional disposable baby diapers.

Both the panty liner and the SUMO diaper are manufactured entirely in Europe, resulting in shorter transportation routes and a reduced CO2 footprint. Moreover, these innovations contribute to strengthening the European textile and nonwovens industries by fostering innovation within Europe.

Viscose speciality fibre manufacturer Kelheim Fibres, nonwoven producer Sandler, and hygiene product manufacturer pelzGROUP have jointly developed a new panty liner that is plastic-free according to the European Single-Use Plastics Directive (SUPD). This innovative solution is a step towards reducing the amount of plastic in hygiene products – and thus also a contribution to tackling the problem of plastic pollution.

According to a UNEP study on marine litter and microplastics, eight million tons of plastic end up in the oceans every year. A significant portion of this pollution comes from single-use plastic products, including conventional period products such as pads or panty liners.

The partnership between the three companies was formed under the Open Innovation principle, which allowed for creative idea exchange and facilitated the development of an innovative product. According to Jessica Zeitler, R&D Specialist at Sandler, “Our collaboration with Kelheim Fibres and pelzGROUP is a great example of how companies can work together to create solutions that benefit both the environment and consumers. We are proud to be part of this project and the opportunities it offers.”

For hygiene product manufacturer pelzGROUP, it is important to combine sustainability and performance to achieve broad acceptance in the market. “Our panty liner meets the strict requirements of the European Single-Use Plastics Directive (SUPD) while also matching the performance of conventional synthetic products. At the same time, our new panty liner has a completely European supply chain. This means short distances and therefore low CO2 emissions, and – especially in times of global disruption – reliability for our customers,” emphasizes Dr. Henning Röttger, Head of Business Development at pelzGROUP.

"Our viscose speciality fibres are an environmentally friendly and high-performance alternative to synthetic materials," says Dominik Mayer, Project Manager Fibre & Application Development at Kelheim Fibres. "They are at the very beginning of the product value chain and yet have an enormous impact on the functionality of the end product. Open innovation allows us to bring all partners in the value chain to the table, to find the best solution together in a very short time and bring it to commercialisation - the collaboration with Sandler and pelzGROUP is an important milestone in our AHP journey."

The viscose specialities manufacturer Kelheim Fibres has won the Techtextil Award in the "New Concept" category for their project "Cellulose-based nonwovens for highly absorbent reusable products".
This award is intended to make cutting-edge developments visible, promote unconventional thinking and intensify the dialogue between researchers, manufacturers.

The starting point for the innovation was the search for a washable and thus reusable absorbent pad made of completely bio-based materials for the cloth diaper of the Berlin-based start-up Sumo.
Two main requirements of the application are obvious: A fast and efficient liquid distribution and high absorbency should minimise rewetting and leakage. Both are ensured by speciality viscose fibres from Kelheim, which have been making this essential contribution to absorbent hygiene products such as tampons for many years. The obvious solution was therefore to optimally utilise the synergies between knitted and woven structures with nonwovens.

In doing so, the advantages of nonwovens in combination with speciality viscose fibres in terms of absorbency (through e.g. more open-pored structures) have been perfectly transferred from the field of disposable to the world of reusable products. For reusable products, however, there is another challenge to overcome: they must remain stable during washing and over several cycles of use. To ensure this, an innovative nonwoven construction was developed in close cooperation with the STFI. These nonwovens can be used as a stand-alone solution or integrated into a textile structure.