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A Study of the Relationship between Bending Rigidity and the Ease of Decortication of Flax (Linum usitattisimum) Straw

Sustainable crops such as flax can supplement world cotton supplies. Recovery of the fibers from the plants is a critical stage in the process, and optimization of the harvesting time is a significant factor. The mechanical decortication process is strongly influenced by the degree of retting and the mechanical properties of the flax straw. Changes in the plant morphology during maturation affect the stiffness of the straw and are assessed using three-point bending to determine the bending rigidity of the straw. Correlations between these data and the ease of decortication are investigated.