Migration of Fibers in Air-jet Yarn

The air-jet spun yarn consists of a core of parallel fibers wrapped by surface fibers. Many research workers have carried out a wealth of work on fiber migration of yarn, an important structural characteristic. Fiber integration and nature of twisting determine to a large extent the structure of a spun yarn, therefore the research work presented here aimed to analyze fiber migration in air-jet spun yarn by varying process parameters of air-jet spinning machine. The measurement of fiber migration in air-jet spun yarn was performed with the help of the tracer fiber technique. Our study revealed that two process parameters, namely main draft and N1 pressure, had an influence on root mean square deviation. Other migratory parameters were not affected by any other process parameters.