Abstract:

In view of more hairiness and poor yarn evenness of Carex meyeriana/cotton/vinylon composite yarn, a new yarn spinning method (modified sirofil apinning) was designed in which yarn carrier was added to introduce esternal fascinated yarns. The influence of twist factor and spacing on the yarn performance was discussed using strength, estension at break, hairiness index and yarn evenness as evaluation indexes. The performance of the composite yarn was evaluated by fuzzy comprehensive evaluation. The results show that the influence sequence of the twist factor on the yarn performance saquentially is 400, 380, 360 and 340; the composite yarn gas the best comprehensive performance when the single yarn spacing is 10 mm and the yarn twist factor is 400 in the modified sirofil spinning; and the hairiness is reduced by 73.49% and the unevenness is reduced by 29.05%, compared with core spun yarn spun by conventional sirofil spinning.

Key words: Carex meyeriana, modified sirofil spinning, fuzzy and comprehensive evaluation, twist factor