Thesis Details


Thesis Title: The effect of compressed air settings on air jet spun yarn quality
Thesis Author: Darrell Wayne Kennedy II
Abstract: The MJS 802H air jet spinning frame utilizes compressed air during the yarn formation process. The compressed air passes in opposite directions through two nozzle assemblies, known as N1 and N2, to form yarn. This compressed air can be characterized by the mass and volumetric flow rates through each nozzle. The effect of mass and volumetric flow rate through each nozzle was determined utilizing N1 nozzle pressure, N2 nozzle pressure, and compressed air dewpoint. This research focused on determining the impact of mass and volumetric flow rate on Ne 26/1 and Ne 35/1, 50/50 polyester/cotton yarn. These objectives were accomplished by varying the N1 nozzle pressure, N2 nozzle pressure and compressed air dewpoint. Phase I research focused on determining the optimum nozzle pressures to satisfy the yarn quality requirements of a Ne 26/1 and Ne 35/1, 50/50 polyester/cotton weaving yarn. In addition, the effect of N1 and N2 nozzle pressures on yarn quality were also reported during this phase of research. Phase II of this research focused on determining the impact of compressed air dewpoint on yarn quality at the optimum nozzle pressures for each yarn count. " i