الفهرس 
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Abstract
The effect of yarn structure, yarn count and sheath types on the properties of elastic core spun yarns was studied. The properties of knitted fabrics produced from different yarn structures and sheath types were studied as well. Different yarn layout patterns and anti-crease nano finishing were applied. Elastic core yarns were produced at three different counts, five different structures, and three different material types. Multiple Criteria Decision-Making analysis was used to obtain the optimum yarn count with respect to yarn properties to be used in the production of knitted samples. Knitted fabrics were produced, finished, and tested for dimensional properties, dimensional stability, mechanical comfort, thermal comfort properties, and statistically analyzed. Multiple Criteria Decision-Making analysis was carried out to select the optimum knitted samples with respect to knitted fabric properties to be used in the yarn layout patterns in the final production of knitted samples. Anti-crease nano finishing was applied on the final samples. Fabric texture was determined using image analysis methods. It was concluded that yarn structure, yarn count, and sheath type significantly affected yarn properties. It was also determined that yarn structure and material type had a significant effect on most knitted fabric properties. Layout structure significantly influenced knitted samples properties produced from them. Crease recovery after nano finishing was improved largely compared to before nano finishing.