Rotor machine variables and yarn structure: Part I - Influence of machine variables on fibre disorder at rotor groove

The proportion of curved fibre ends in forward and reverse directions increases with an increase in opening roller speed, rotor speed and rotor diameter, and it is more in forward direction than in reverse direction. With an increase in rotor speed, the coefficient of relative fibre parallelization first decreases and then marginally increases, but with an increase in opening roller speed, it first increases and then decreases.