EVALUATION OF THE WEAVABILITY OF POLYESTER-FIBER MULTIFILAMENT SIZED YARN

The mechanism of warp breakage during the weaving of polyester-fibre c ontinuous-filament yarns is described. Techniques for the laboratory e valuation of the weavability of sized continuous-filament yarn are sug gested. Correlations between various weavability indices and sized-yar n and size-material properties are estimated to determine which of the methods gives a better representation of the relative weaving propert ies of continuous-filament sized yarn. The performance of various size materials when applied to polyester-fibre yarn is studied. The perfor mance of sized microfibre yarn is also highlighted.