AN INVESTIGATION ON PROPERTIES OF SIRO-SPUN YARNS

Abstract

Conventional ring spinning is known as traditional spinning system and it is most widely used system in textile industry. Despite being the most prevalent system and supplying approximately 60% of short-staple yarn production, there are still some limitations as lower production rate, longer production flow and higher production costs. That is why, researches in textiles started to accelerate to develop alternative spinning systems. Siro-spun spinning system which is an important type of twist spinning, had been developed with the aim of reducing yarn manufacturing costs by eliminating plying and twisting processes in the production flow. The main principle of Siro-spun spinning is to feed two parallel fibre strands in drafting zone and allow these two fibre strands twist together on each other when they leave the front roller. In this study, it was aimed to compare the properties of two ply yarns produced by ring spinning system and Siro-spun spinning system. For this purpose, properties of Ne 40/2 yarns made of cotton, Tencel, polyester and micro Modal were analysed. Results showed that Siro-spun yarns have lower hairiness and unevenness than ring-spun yarns, besides mechanical properties of both spinning systems are approximate. Besides the advantages in terms of production costs, it can be also concluded that Siro-spun spinning system is a strong alternative of conventional system in terms of many yarn characteristics.

Keywords

• Siro-spun spinning
• twist spinningm plied yarn
• micro Modal