Fuente: WIPO "hemp" Said technology is that the hemp yarn is woven by warping according to designed puttern, then (1) boiling off: containing boiling off and washing in cold, warm and hot water, (2) ikmmersion bleaching; containing immersion bleaching, oxidation, flushing, dewatering, dyeing, ironing. The products treated by said invention have good permeability, perspiration absorption, cooling and soft.