Stubborn paper fibers finally recyclable

Thanks to a joint research project between fiber-rec GmbH, Gotic GmbH and the Chair of Wood Technology and Wood-based Bioeconomy at TU Dresden, a process has been successfully developed that makes previously non-recyclable paper and cardboard products usable again. The project, funded by the German Federal Environmental Foundation (DBU), marks an important step towards a more sustainable paper and fiber industry.

♻️ A breakthrough for paper products that are difficult to recycle

Many specialty papers, such as bottle labels, cellulose towels or coated paper cups, are considered difficult to recycle. The reason for this is their chemical composition, which hinders conventional wet defibration. Until now, these papers have often been incinerated or landfilled. The newly developed dry defibration process, on the other hand, efficiently breaks down these materials and releases the valuable cellulose fibers.

The process conserves resources, saves water and energy and produces significantly lower CO₂ emissions than conventional methods. The fibers obtained open up a wide range of applications: from new paper products and packaging to insulation and soundproofing materials.

🌱 Digital raw materials platform established

A digital raw materials platform was also created to systematically record materials that are difficult to recycle and provide suitable reuse scenarios. The result is a practical tool that supports the path to a circular bioeconomy.

🔍 Significance for research and teaching at TU Dresden

The project opens up exciting perspectives for future research work and invites students and early-career researchers to actively participate in this development. It shows how innovative processes can solve real sustainability problems . DBU expert Michael Schwanke is convinced that the development is an "important step for the bioeconomy, resource conservation and climate protection".

• More information in the bioeconomy newsletter
• Contact persons for the topic of dry defibration: R. Kleinert and M. Loist
• Contact person for the raw material platform: Thomas Schrinner