Impact of different stages of spinning process on fibre orientation and properties of ring, rotor and air-jet yarns: Part II - Effect of final machine parameters and comparison of different types of spinning machines in terms of structural parameters and yarn properties

This paper reports a glimpse on the impact of final machine parameters on fibre orientation and yarn properties. The comparison of different types of spinning machines like ring, rotor and air-jet in terms of structural parameters and yarn properties has also been described. The increase in draft at the speed frame improves the fibre parallelization and ultimate yarn properties. The increase in draft at the ring frame deteriorates the properties of ring yarn. The quality of rotor yarn depends on the state of parallelization in feed sliver. The air-jet yarn properties are dependent on the amount of core and wrapper fibres. The increase in draft at the air-jet spinner tends to improve the properties of air-jet yarns. Finally, it is clear that the spinning process should be adjusted considering the effect of important preparatory machines and final spinning machine parameters simultaneously.