Fuente: WIPO "hemp" The biologically degumming technology for hemp bast includes such steps as clustering, cutting into 750-850 mm in length, retting at 21-25 deg.C for 70-74 hr, washing with water, drying, beating, and clustering again, and features low environmental pollution, high yield rate and low cost. Obtained hemp fibres with 650-750 mm in length has increased spinnability and may be used to spin high-count and -quality bast fabrics.