Continuous Mechanical Extraction of Fibres from Linseed Flax Straw for Subsequent Geotextile Applications

Linseed flax is a multipurpose crop. It cultivated for its seeds and particularly oil. The main contributors this crop are Canada, France Belgium. In general, straws of linseed buried in the fields or burnt. However, these solutions not good practices environment from an economical point view. study, (six batches total) with different dew retting durations harvesting techniques were studied to possibly use them producing innovative geotextiles. Two fibre extraction processes investigated. A first process (A) involved horizontal breaker rollers then breaking card. second one (B) consisted using vertical rollers, “all fibre” device (fibre opener) followed by sieving. chemical composition fibres parietal constituents appeared be globally equivalent textile pectic content decreasing as function duration. This contributed increase cellulose content. was situated range 29% 33%, which corresponds yield fibre. level purity can reach values up 90% method (without extra-sieving) 96% B (with extra-sieving), length (larger than B) their tensile properties make suitable structural geotextile yarn manufacturing.