Optimization of Structurally Modified Wool/Polyester Blended Yarns Using Desirability Function

Fibers are structural unit of a staple yarn, and its properties influence the properties of yarn. Structural modification through selective removal of component opens further scope of application. Yarns were prepared according to the mixture design for different fibers using design expert software. The effect of composition and selective removal of PVA on yarn properties has been reported. The potential of different fibers optimization to achieve maximum desirability for different properties of yarn for treated and untreated yarns with the help of desirability function has also been reported. It has been observed that dissolution of PVA component led to an increase in compressibility and reduction in packing fraction. Results of optimization for treated and untreated yarns show that almost same overall desirability can be achieved by using lower percentage of wool fiber in the case of treated yarn. © 2020, The Institution of Engineers (India).