Ideal stitch model for interlock-knitted fabric

This analysis is presented as two- and three-dimensional ideal models for an interlock structure. These are developed from the ideal model loop for plain structure that was suggested in our pervious research works (Jeddi et al., Int. J. Eng., 12, 39–40, 1999; Semnani et al., J. Text. Inst., 94(1), 204–213, 2003). These models are based on the classic curve of the strophoid equation as the loop shape of face and back loops and improved by adopting an elastica configuration. Then, a quadratic equation is taken as the linking portion between face and back loops. Thereafter, the nondimensional constant of stitch density values (U _s ) obtained from the theoretical models was compared with the experimental values, which were obtained from measurements of cotton interlock fabrics. It is observed that there is a good agreement between the theoretical predicted and experimental U _s values.