A new experimental model based on the geometric parameters of a woven structure's yarn linear density and fabric tightness has been developed to predict the volume porosity of woven fabrics. The experimental model is based on a factor analysis. Experiments involve fabrics made from staple yams, but the mathematical model of volume porosity can also be applied to fabrics made from mono- or multifilament yarns. The experimental results of volume porosity correspond very well with calculated values according to the proposed equation.
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