A kind of production technology of silk cashmere semi-worsted yarn

Abstract

The invention discloses a production process of a silk floss and cashmere semi-worsted yarn. Mercerized wool fibers are obtained through hydrogen peroxide treatment instead of traditional chlorinatingagent treatment, so that the pollution to the environment and the harm to the human body are reduced; according to a dyeing process of mercerized wool, the shrink-proof performance of the wool fiberscan be obviously improved and the relative humidity in the processes of cotton carding, drawing, roving and spinning is effectively controlled; and meanwhile, by adding an oil agent prepared from anantistatic agent, wool oil and silica sol, the electrostatic problem in the spinning process is solved, the yarn quality is guaranteed, the prepared silk floss and cashmere semi-worsted yarn has the breaking strength of 15.6-16.4 N / tex and the breaking elongation rate of 3.9-4.4% by measurement according to GB / T 3916-2013, and the technical problems that the semi-worsted yarn is easy to break, static electricity is easily generated in the spinning process and pollution is easily caused in the preparation process in the prior art are solved.

Description

technical field [0001] The invention relates to the technical field of semi-worsted yarn preparation, in particular to a production process of silk cashmere semi-worsted yarn. Background technique [0002] With the advancement of technology, semi-worsted spinning has gradually evolved into a spinning system between cotton spinning and wool worsted spinning. Semi-worsted spinning integrates the essence of wool spinning and cotton spinning, and the number of production passes is less than half of that of worsted spinning. Due to the many technical advantages of cotton spinning equipment, the adaptability of raw materials is wider, combined with wool spinning dyeing and raw material processing related technologies, the fineness of spinning has greatly exceeded the original restricted area of ​​wool spinning, and the raw materials used are more extensive, and the yarn produced is fluffier than worsted wool spinning , Soft, smooth and even than carded wool spinning. [0003] Th...

AI Technical Summary

Problems solved by technology

[0004] The object of the present invention is to provide a kind of production technology of silk sheep cashmere semi-worsted yarn, solve the following technical problems: (1) by mercerized wool fiber, obtain by hydrogen peroxide treatment, replace traditional chlorinating agent treatment, reduce environmental impact pollution and harm to the human body; the dyeing process of mercerized wool can significantly improve the shrink-proof performance of wool fiber, and has little effect on the color and yellowing of dyed products. The use of low-temperature dyeing reduces energy consumption, reduces costs, and effectively controls combing The relative humidity in the process of cotton, drawing frame, roving and spun yarn, and at the same time, by adding oil agent prepared from antistatic agent, crude oil and silica sol, the problem of static electricity in the spinning process is solved, and the quality of the yarn is guaranteed. According to GB / T3916-2013, the obtained silk cashmere semi-worsted yarn has a breaking strength of 15.6-16.4N / tex and an elongation at break of 3.9-4.4%. Static electricity is easily generated in the yarn process, and the preparation process is likely to cause technical problems of pollution; (2) The output shaft of the second motor drives the stirring screw to rotate, and the stirring screw mixes and stirs the dye in the dye cylinder, and the mixed dye passes through the dye cylinder The dye conduit on one side enters the bottom of the dyeing box cavity, and through this setting, the dye is fully stirred before the dye enters the dye box, and the undyed dye falls into the drainage plate at the bottom of the dyeing box, and is guided by the drainage plate again It enters the water pump through the pipe hole, which solves the technical problem that the dye is easy to precipitate and waste during the semi-worsted yarn dyeing process in the prior art; (3) the lifting bearing seat is pushed by the telescopic cylinder piston rod, and then the lifting bearing seat drives When the pressure roller moves downward, when the fixed strip on the lifting bearing seat contacts the limit strip on the side vertical plate, the moisture on the dyed semi-finished silk cashmere semi-worsted yarn between the upper pressure roller and the lower pressure roller will Extruded to solve the technical problems in the prior art that the yarn needs to be put into the dryer for drying after dyeing, the drying process is inconvenient and the power consumption is large

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