Influence of fibre length and yarn linear density on mean fibre extent in OE DREF-II friction- spun acrylic yarns

Abstract

The structure of OE DREF-II friction-spun yarns has been investigated mainly in terms of mean fibre extent. Fibres at the centre of these yarns are seen to extend for longer distance along the yarn axis than those at the outside. The average mean fibre extent lies within a narrow range of 15-22 mm. Within this range, depending on yarn linear density the mean fibre extent increases with the increase in fibre length up to 38 or 44 mm followed by a decrease thereafter.