Yarn draw-off nozzle for open end-rotor spinning device, has nozzle support at which nozzle insert is fixed, where nozzle insert is manufactured from sub-micrometer ceramic material, and marking for identifying type of nozzle

摘要

The nozzle (13) has a nozzle support (36) at which a nozzle insert (38) is fixed, where the nozzle insert is manufactured from a sub-micrometer aluminum oxide ceramic material. An optically differentiable marking identifies type of the nozzle. The nozzle insert is transparent such that the marking arranged below the nozzle insert is identifiable by the nozzle insert. The marking is positioned between the nozzle support and the nozzle insert. The marking is designed in the form of a colored base ring (31) or an alphanumeric character.