Abstract
In this study, the effect of 100% atmospheric relative humidity on yarn properties was investigated using jet-ring nozzles and compared with the yarn properties of yarns produced with air operated jet-ring nozzles under normal conditions. As a humidification system, a pneumatic conditioner, also known as a lubricant, was used in pneumatic systems. This conditioner was connected just before the pneumatic distributor that supplies air to the nozzles. The tube in stage 2 of the conditioner was filled with pure water at room temperature (25 °C ± 2 °C). The air conditioner dose was adjusted to 100% atmospheric relative humidity. The use of humidified air to jet-ring nozzles had a slight positive effect on all yarn properties (yarn hairiness, yarn irregularity, yarn elongation and yarn tenacity). According to the results, it resulted in a 1% to 3% improvement in yarn quality. This study is the first example and an original study in this field, as there is no study using humidified air in existing jet-ring air nozzle studies. It was proven in this study that humidified air results in a slight improvement in yarn properties.
Highlights
Within the textile sector, the measurement and evaluation of yarn hairiness and hairiness variation on the yarn gradient line is an important part of the total quality control of a yarn
The effect of 100% atmospheric relative humidity on yarn properties was investigated using jetring nozzles and compared with the yarn properties of yarns produced with air operated jet-ring nozzles under normal conditions
The use of humidified air to jet-ring nozzles had a slight positive effect on all yarn properties. It resulted in a 1% to 3% improvement in yarn quality
Summary
The measurement and evaluation of yarn hairiness and hairiness variation on the yarn gradient line is an important part of the total quality control of a yarn. There is no twist on the fibre bundle and no real strength is imparted to the yarn. The original idea of the false twist principle is based on the addition of fibres to the false twist structure following the removal of the torque at the output of the false twist element and the rotation of the inserted fibres in the opposite direction. This is very similar to the idea that the fibres emerging from the yarn surface are wound around the centre of the yarn. The development of modified spinning systems with the addition of air nozzles to various spinning systems and research on the effect of these systems on yarn properties have been studied in recent years
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