Manufacturing process of high-count linen tow yarn

Abstract

The invention discloses a manufacturing process of high-count linen tow yarn. The manufacturing process comprises the following steps of carding raw materials by a hackling machine: taking tows with uniform thickness and uniform color based on the number of needles on the middle section of the hackling machine; and performing humidification curing, combined carding and gilling, and performing combing, roving and boiling and bleaching, wherein the boiling and bleaching process comprises four steps of acid pickling, chlorite bleaching, light boiling and oxygen bleaching. According to the invention, the raw materials are carefully selected, and the relatively uniform tows with good fineness consistency are selected; tow fibers are good in splitting degree and small in difference, so that the effect of the independently selected short fibers is far better than the effect of post-processed fibers; and in addition, improvement lies in boiling and bleaching, the fibers with the relatively good fineness are used, and chemical processing, namely, the boiling and bleaching technology is moderated, so that in the processing processes of chlorite bleaching and oxygen bleaching, the fibers are lighter than those in a conventional technology, the fibers are not damaged, and in order to ensure that the splitting degree is suitable and one step of light boiling is carried out, the spinning production and quality are improved.

Description

technical field [0001] The invention relates to the field of short linen yarn production, in particular to a manufacturing process of high-count flax short linen yarn. Background technique [0002] At present, the short linen yarn spun by the domestic conventional flax short linen spinning process: 1. The spinning count is low, basically below 24NM. 2. The short linen yarn spun feels hard and rough. The cloth surface is not clean 4. The yarn strength is low, the unevenness is large, the spinnability is poor, the output is low, and the labor intensity is high. [0003] The above-mentioned problems are mainly caused by the following two aspects, which are manifested in: 1. The conventional process fiber is aggravated in the production process. During the combing process of the combing machine, short hemp at the root and tip, yellow and gray short hemp, rough and hard fiber are combed. The fine and soft short linen are not separated. These short linen with great differences in...

AI Technical Summary

Problems solved by technology

[0002] At present, the short linen yarn spun by the domestic conventional flax short linen spinning process: 1. The spinning count is low, basically below 24NM. 2. The short linen yarn spun feels hard and rough. The cloth surface is not clean 4. The yarn strength is low, the unevenness is large, the spinnability is poor, the output is low, and the labor intensity is high

[0003] The above-mentioned problems are mainly caused by the following two aspects, which are manifested in: 1. The conventional process fiber is aggravated in the production process. During the combing process of the combing machine, short hemp at the root and tip, yellow and gray short hemp, rough and hard fiber are combed. The fine and soft short linen are not separated. These short linen with great differences in fiber feel and length have great differences in chemical processing. It is difficult to achieve the fiber quality required for spinning in subsequent processing. Linen spinning is bundle fiber spinning. , the fiber is required to reach a certain fineness, that is, the degree of splitting, and the fiber length should be neat and moderate. The conventional process only strengthens carding to improve fiber quality, but ignores the difference in the raw material itself. The speed ratio of the forest, work roll, and cleaning roll is used to increase the fineness, but at the same time it causes the fiber to break and rebound, damages the fiber, and also produces hemp particles caused by rebound hemp

The improvement of raw material splitting degree is destructive, and it is more scientific to improve the splitting degree and fiber splitting degree with quality. 2. The conventional process only deliberately increases sub-bleaching or oxygen bleaching during the cooking and bleaching process to improve coarse and hard fibers. However, the fiber is damaged while strengthening the scouring, and the effect of reducing fiber damage and splitting the fiber better is not achieved.