Authors: Min Kim Boong Soo Jeon
Publish Date: 2015/01/04
Volume: 15, Issue: 12, Pages: 2644-2650
Abstract
In this study we describe a technique to produce a new composite yarn with different crosssectional and longitudinal appearances on a modified ring spinning machine These new composite yarns are produced by adjusting the delivery speed ratio between staple fiber and filament In order to examine the effect of the delivery speed on the yarn structure we investigated the convergence points in the yarn formation zone with various delivery speeds using a high speed camera The convergence point migrated from side to side depending on the delivery speed and as a result the produced yarn had various structures We also evaluated the properties of composite yarns depending on the delivery speed ratios of the filament and staple fiber as well as the twist multiplier in the new composite spinning system The delivery speed ratio changed the yarn properties such as unevenness imperfections tenacity elongation and hairiness The twist multiplier had a minor effect on the yarn properties for the same delivery speed ratio
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