Evaluation of air permeability of fabrics woven with slub yarns

The aim of this research was to analyse the influence of slub yarn structure on air permeability of woven fabrics. slub length,slub distance,amplitude of slub and yarn linear density were used as control factors to produce slub yarns with varying properties according to taguchi l9 orthogonal design. twill 1/3 woven fabrics were produced with these slub yarns and air permeability results were statistically analysed. optimum yarn parameters were determined for air permeability which was considered as nominal-the-better property according to the end-use purposes of the fabric. the analysis results showed that slub thickness had the most significant effect on air permeability.