Investigation of properties of single jersey fabrics made from open-end rotor yarns produced by using different nozzle types

In this thesis, we studied structural, dimensional and performance properties of plain or single jersey knitted fabrics made from open-end rotor spun yarns including the production cost analysis and optimization process upon the basic data and information obtained via the manufacturing the necessary yarns and knitted fabrics under the mill conditions as the materials of the works proposed. The yarns were produced for different nozzle types and they are the same in counts as Ne 30/1. Rieter R1 open-end rotor spinning machine was used in production and the spinning conditions were kept in the same condition during manufacturing of yarns. Turkish Urfa region cotton was specifically handled in the study as a raw material. These nozzle types are known as K4KK (plain with 4 grooves), K4KS (plain with 4 grooves and aggressive flute insert), K6KF (plain with 6 grooves), K8KK (plain with 8 groves), KSNX (spiral with soft flute insert). Apart from the nozzle types, the yarn production conditions and machine parameters were kept the same. Fabric productions were realized by using a 28 fine, 32 inch diameter single plated Mayer&Cie. Relanit 3.2 circular knitting machine. The yarns were converted to plain knitted fabrics adjusting the yarn stitch length between 14-17 cm on the machine as they are the minimum and maximum values limited by the yarn type, machine and commercially accepted conditions. The stitch length could be adjusted by changing the yarn length feeding defined for a number of yarn knitting needles, 50 needles in our case. After knitting, finishing process was applied on the fabrics. Overall, the detailed results are given through the thesis.