RESULTS OF PROCESSING SEMI-COARSE SHEEP WOOL ON CARDING MACHINES

Abstract

In the course of a scientific experiment, the yield in the form of down and waste was determined in the process of processing sheep’s semi-coarse wool on carding machines pro-duced by the People’s Republic of China (F168) with an assessment of their quality according to the content of fiber types in the context of the multiplicity of the process. The used wool of the Agin semi-coarse sheep breed for obtaining down was characterized by averaged wool fineness (27,9 microns); the percentage of clean wool yield is 72,7%, the down content is 94,9%, heterotypic hair content is 3,4%, top hair content is 1,7%. The average wool length of the studied down samples was 7,6 cm, top hair length was 18,8 cm, and the strength of wool was 10,4 cN/tex. The resulting products were with a high content of down (99,00-100,00%), had a white color, elasticity, resilience, and luster gloss. With repeated combing of semi-coarse wool and its main part, the yield of marketable products in the form of down increases from 80,1 to 99,5%. With an increase in the multiplicity of combing, the content of fibers

with the fineness up to 30 micrometer, characteristic for down fibers, increases in the compo-sition of the product. The quality of down is improved by reducing the diameter of down fi-bers. The fineness of wool fibers in the first treatment was 23,05 microns, in the fourth it was 21,4 microns. The length of the down fiber in the raw material was 6,6-8,2 cm, which corre-sponds to the requirements of a combed spinning system. The results of the studies allow us to conclude that samples of processed wool on machines can be used as raw materials for tex-tile production.