DITF : Novel hemp-based cellulose fibers from...
DITF

Novel hemp-based cellulose fibers from environmentally friendly production

(source: RBX Créations)
(source: RBX Créations)

Cellulose filaments made of hemp pulp with a very good property profile are produced at the DITF Denkendorf. The material originates from sustainable and environmentally friendly cultivation. The work is carried out within the framework of the European Eliit Partnership Project, promoting the competitiveness of small and medium-sized enterprises (SMEs) in the textile industry.

The spinning process developed at the German Institutes of Textile and Fiber Research (DITF), Denkendorf/Germany, under the name HighPerCell serves as the technical basis for producing novel hemp-based cellulose fibers. In the process, the starting material, fluffy cellulose pulp from hemp, is dissolved in ionic liquids and then spun out into fibers in a special wet spinning process. The solvent is non-toxic, environmentally friendly and can be almost completely recovered. Thus, no chemicals harmful to the environment or health are released by the process.


(source: RBX Créations)
(source: RBX Créations)
The hemp material is obtained from the ecological and sustainable cultivation of French agricultural land in cooperation with the RBX Créations, Neuillac/France. RBX Créations works with producers who are committed to environmentally friendly and soil-friendly cultivation methods and who do not use irrigation or pesticides. The company developed a process to turn this feedstock into pulp. This type of cooperation creates new synergies, as the aim is to utilize the hemp plant as fully as possible. In addition to the known uses as food or for the production of pharmaceutical and cosmetic products, the surplus plant parts are now also to be processed into new, high-quality textile and technical products.

(source: DITF)
(source: DITF)
For the DITF, the partnership with RBX Créations is a win-win situation: The DITF have many years of expertise in processing cellulosic materials into high-quality fibers and textile materials. RBX Créations, on the other hand, through its good networking with producers and its own hemp transformation process, represents a suitable partner for the supply of high-quality starting material that is produced under ecological aspects. The resulting filaments, named Iroony, can be woven or knitted directly into the final textile, but can also be processed into staple fibers and yarns. Potential applications include high-quality clothing as well as casual and sportswear, meeting the growing demand from brands and consumers for environmentally compatible materials.

Bobbins with hemp-based cellulose filaments from HighPerCell technology (source: DITF)
Bobbins with hemp-based cellulose filaments from HighPerCell technology (source: DITF)
The very good technical properties of the hemp-based cellulose fibers produced in the HighPerCell process, which score particularly with their tensile strength and their elasticity and elongation characteristics, also make them interesting for technical applications. These possibilities increase the added value for hemp cultivation enormously.

Acknowledgments
This research is supported by Eliit Partnership Project and is funded by Cosme Program of the European Union for the Competitiveness of Enterprises and Small Medium-Sized Enterprises (SMEs).

HighPerCell, Iroony = registered trademarks

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