Nozzle Design and Compressed Air Management
topic
Air-jet spinning nozzle design determines the vortex intensity, wrapping fibre proportion, and yarn structure through nozzle orifice diameter, angle, and number of tangential air inlet holes, with compressed air consumption of 0.3 to 0.5 cubic metres per minute per spinning position at 5 to 6 bar pressure representing the primary operating cost driver that must be balanced against yarn quality improvement from higher nozzle pressure.
Role
Governs the wrapping intensity and yarn structure formation that determines air-jet yarn mechanical and appearance properties through nozzle geometry optimisation, with compressed air cost representing 20 to 30 percent of air-jet spinning operating cost requiring pressure and consumption management to maintain economic competitiveness against lower-energy ring and rotor spinning alternatives.