DITF develops sustainable cellulose yarn technology

German Institutes of Textile and Fiber Research (DITF) is developing sustainable cellulose staple-fibre yarns for the apparel industry through its ‘InnoCell’ research project. The initiative uses the institute’s patented HighPerCell process to create high-quality textile yarns from cellulose continuous filaments while maintaining a low environmental impact.

The HighPerCell technology works through a closed-loop recycling system, allowing solvents used during production to be fully recovered and reused. This helps reduce waste generation and lowers the carbon footprint of the manufacturing process, offering a more sustainable solution for both the textile industry and consumers.

The InnoCell project aims to support the market-ready development of cellulose yarns for clothing applications. In the HighPerCell process developed by DITF, cellulose fibres are produced as continuous filaments within a completely closed production system.

According to DITF, the process offers several advantages over traditional methods such as the viscose and Lyocell processes. The viscose process involves extensive chemical treatment and creates a large amount of waste. In comparison, both the Lyocell and HighPerCell methods allow full recycling of solvents, helping avoid harmful waste products that can affect both the environment and human health.

DITF stated that the HighPerCell process has already shown strong flexibility in working with different raw material sources, and the fibre production method is expected to be adapted according to the material being used.