Estimation on the 3D Porosity of Plain Weft Knitted Fabric under Wale Extension

In the recent paper [1], the Benltoufa theoretical model was improved to estimate the three dimension (3D) porosity of plain weft knitted fabric while was subjected to extension under different uniaxial extension in course direction. In addition to this model, there are only a few geometrical models for estimation of 3D porosity of weft knitted fabrics such as Benltoufa and Karaguzel models. In the present research, plain knitted fabrics over a different range of knitting stiffness are produced to investigate the accuracy of these models. Thereafter, the estimated 3D porosities of the fabrics using the theoretical models are compared with the experimental values which are obtained from Guidoin empirical model while is subjected to extension under different uniaxial extension in wale direction. It is concluded that Karaguzel and i-model models show reliable and trustful result while, Benltoufa model shows huge differences in comparison with Guidoin model