High-quality flax staple fiber processing method

Abstract

The invention discloses a high-quality flax staple fiber processing method. The high-quality flax staple fiber processing method adopts flax staple fibers as the raw materials and comprises the steps of pretreatment, boiling off, hot water washing, cold water washing, dehydration and drying. The method has the advantages that a weak base and an environment-friendly auxiliary are adopted to remove most of impurities such as pectin, lignin and the like, the selected auxiliary is non-toxic, tasteless, low in cost, good in impurity removal effect, and excellent in biodegradablity without causing wastewater pollution, and the damage to the strength of the fibers caused by a strong base, high temperature and high pressure in the traditional process is solved, and furthermore, the processing procedure is shortened. The processing method is capable of obviously improving the split degree and the uniformity of the flax staple fibers, enhancing the whiteness and the flexibility thereof and improving the spinnability. The split degree of the processed flax staple fiber finished product can achieve 1800 Nm, the average length thereof is 65mm, the breaking force thereof is 112-122cN, and the elongation thereof is 4.6-5.0%; therefore, the technical requirements of the production of flax yarns for circular machine weft knitted single jersey are well met.

Description

technical field

[0001] The invention relates to a processing method of high-quality flax short fiber, which belongs to the technical field of textile technology. Background technique

[0002] Linen fabric is hygroscopic, breathable, antibacterial, deodorant, comfortable to wear and has health care functions. Because flax short fiber contains more lignin and pectin impurities, its splitting degree and softness are far lower than that of long flax, so the scope of use is limited to weaving middle and low-grade products. And because of its high crystallinity and high rigidity, traditional linen yarn can only be used for weaving on weaving and knitting flat knitting machines. According to investigation, adopt this processing method, be made of flax staple fiber and be suitable for knitting circular machine weft knitting single jersey yarn and there is no report at present in domestic and foreign data. The invention method with the application number 97104800.2 is characterized...