What is the difference between regular and reverse twist ?
In ring spinning, yarn is produced by applying a twist on the fiber roving. Regular twist yarn looks like a barbershop pole. If you look at the yarn closely, you will see that the fibers are all slanted towards the right. This is called “Z” twist because the direction of the fibers reminds us of that letter. In certain applications, a customer may require a reverse twist. The direction of the twist is then reversed at spinning. This is called reverse twist or “S” twist. On the air jet system, the yarn has practically no twist whatsoever.