A modified twist-spinning technology: three-roving yarn spinning

Ring spinning is one of the oldest and most widely used spinning technology. Recently, many alternative spinning technologies have been introduced. Some of these technologies work on completely different working principle while some of them were developed from conventional system with some modifications. Sirospun technology which two strands are fed into drafting zone simultaneously is one of the systems that developed from conventional ring spinning. This study focuses on development of three-roving yarn production system that was inspired from siro-spun technology. Roving funnel and delivery cylinder used in siro-spun technology were redesigned for three-roving yarn production and attached on conventional system. Three-roving yarns produced in ring spinning machine were compared with three plied yarns in terms of physical, mechanical and structural properties. For better assessment of this new system, different raw material types were used in yarn production. Results showed that three-roving yarns have better hairiness values and similar mechanical properties for all raw material types. However, unevenness still needs to be improved by further developments on this new system.