WINDING COMPOSITE FALSE TWIST YARN

摘要

PROBLEM TO BE SOLVED: To obtain a winding composite false twist yarn having designing effect like a designing twist yarn by forming a nep structure of a stable spindle shape by winding a sheath yarn around a core yarn. SOLUTION: This winding composite false twist yarn has the following features: singly wound partsαin which a sheath yarn (b) is wound around a core yarn (a) in a single layer, triply wound partsβin which the sheath yarn (b) is wound in a triple layer and multiply wound partsγin which the sheath yarn (b) is wound in a multiple layer of more than four layers to have a nep structure of a spindle shape are mixed; the ratio of the total length of the triple wound partsβand the multiple wound partsγto the whole length is <=20%; the peak frequency in a mass distribution histogram in the longitudinal direction of a yarn is only one in a smaller mass than the average weight; the maximum mass is >=+100% of the average mass; the mass variation against the average mass has a peak of >=100% in a mass variation wave-form; a peak having the ratioεof a peak height H(%) to a peak width D (m) of >=1,500 exists at least one or more per 1 m of yarn length; and the average value ofεin the whole peaks is >=2,000.