The study of fiber fly generation during yarn preparation for either knitting or weaving operations has attracted the attention of many researchers for decades, due to either production inefficiencies or health reasons. Among all fiber properties, the fiber length and spinning types have the greatest effects on the amount of fiber fly generated during these processes. Additionally, unwinding speed, yarn tension and package conicity also have a significant effect on fiber fly generation during the warp beam preparation process. It was found that the vortex yarn was generating the minimum amount of fiber fly during warp preparation while the carded ring yarns were giving the maximum amount of fiber fly during these processes.