A novel degumming process of flax fiber

Wet spinning technique of flax is complex,the process is long,and blending with other fibers is difficult.For this reason,a new degumming process of flax fiber is suggested,which includes alkali-hydrogen peroxide one-bath degumming,soaking with swelling agent BK-100,and mechanical opening,treating flax fiber both physically and chemically.The experimental results indicate that the optimum technological parameters of flax degumming by alkali-hydrogen peroxide one bath method are as follows: dosage of NaOH is 3.5%(o.w.f) and H2O2 is 4%(o.w.f),boiling-off at 90 ℃ for 80 min.Dosage of BK-100 is 4 g/L,and soaking for 20 min.The optimal degumming result can be achieved after being soaked for 20 min under these conditions.After degumming,the breaking strength of the fiber can be up to 5.02 cN/dtex,and fineness 2 400 Nm.Compared with wet spinning process of flax,it improves the quality and spinning property of the fiber significantly,and has created certain conditions for dry spinning of flax fiber.