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In this study, the interaction between POY (Partially Oriented Yarn) polyester yarn's number of nips and knitted fabrics' thickness values were investigated. For this aim, polyester POY filaments with 283 dtex linear density and 100 filaments in cross section were used as raw material. POY bobbins were intermingled at different process conditions (speed and pressure) hence yarns having five different numbers of nips were produced. Single jersey knitted fabrics were produced using these yarns on the circular knitting sample machine. The produced fabrics' samples were prepared on the basis of TS 7128 EN ISO 5084 test standard and the thickness of fabric measured by using digital thickness gauge FD 200/ 25 tester. The interaction between the number of nips and knitted fabric thickness were analyzed statistically and results were interpreted. [ABSTRACT FROM AUTHOR]

The aim of this study is to evaluate many parameters in intermingling process and to determine effects of these parameters on the number of nips of yarn as statistically. For this purpose, POY (Partially Oriented Yarn) filaments which have two different linear densities (122, 283 dtex) and two different filament numbers (68, 100) in cross section were used as raw material. POY bobbins were intermingled by selecting three different speed levels (150, 300, 450 m/min) and three different pressure levels (3, 5, 6 bar). Number of nips of intermingled yarns has been tested and this feature was evaluated as response (dependent) variable. Linear densities of POY, number of filaments in cross section, intermingling speed and intermingling pressure were taken as independent variables. General Factorial Design was applied by using Design Expert 6.0.1 software package and so effects of selected independent variable on the response variables were evaluated as statistically and results were interpreted. [ABSTRACT FROM AUTHOR]