A yarn withdrawal nozzle for an open-end rotor spinning arrangement is
provided which includes a spiral-shaped surface in the yarn deflecting
area which extends essentially over the entire yarn deflecting area and
designed as a continuous spiral without interruptions. In addition
thereto, the nozzle throat of the yarn withdrawal nozzle includes a
further surface with structure downstream of the spiral-shaped surface,
including rounded notches or curved humps. Both the spiral-shaped surface
and the downstream structure are so designed that they are capable of
transferring forces to the yarn without damaging same. The yarn
withdrawal nozzle is moulded with a mould separation provided in an area
downstream of the nozzle throat to facilitate assembly.