STUDIES ON FIBER-PROCESS-STRUCTURE-PROPERTY RELATIONSHIPS IN AIR-JET SPINNING

 

Rajamanickam, Rangaswamy

The effects of front nozzle pressure, back nozzle pressure, yarn count and microdenier polyester/cotton blend ratio on the properties and structure of air-jet spun yarns have been analyzed using controlled experiments and detailed microscopic studies. The fiber-process-structure-property relationships in air-jet spinning have been established using: (i) Mathematical models that relate the yarn breaking load to the fiber properties and yarn structural parameters: (ii) Empirical models that describe the direct and indirect relationships, as well as strong and weak relationships between the fiber properties, structural parameters, process conditions, and yarn properties; (iii) Computer simulation models that quantify the interactions between the fiber properties and structural parameters; and (iv) Artificial neural network models that predict the yarn tensile properties based on the process conditions and fiber properties.

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