Zhejiang Saintyear orders second Andritz line
Procell is a biomanufactured fibre made from proteins.
27th October 2025
Innovation in Textiles
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Graz, Austria
Andritz has entered into a collaboration with Philadelphia-based Tandem Repeat Technologies to develop industrial-scale solutions for producing Procell, a new sustainable fibre for textiles and nonwovens.
The collaboration brings together Tandem Repeat’s expertise in advanced biotechnology and the extensive experience of Andritz as a supplier of nachinery for the production of nonwovens and manmade cellulosic fibres.
Procell, developed and patented by Tandem Repeat, is a biomanufactured fibre made from proteins. Its wool-like softness, exceptional strength, durability and versatility make it well-suited for a broad range of applications.
“We are pleased to collaborate with Tandem Repeat on this exciting product,” said Sergey Malkov, VP of manmade cellulosic fibres at Andritz. “Procell fibre has the potential to be a true breakthrough in sustainable materials.”
“By partnering with Andritz, we will bring our revolutionary fibre to market on a commercial scale,” added Melik Demirel, co-founder of Tandem Repeat. “This will support industries in achieving sustainable production and supply chain resilience.”
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