Influence of ring traveller weight and coating on hairiness of acrylic yarns [Wpływ masy i pokrycia powierzchniowego biegacza w przȩdzarkach obra̧czkowych na włlochatość przȩdz akrylowych]

Abstract

This study involves the results of an investigation concerning the influence of ring travellers of different weights, types and coatings on the hairiness of acrylic yarns spun from microfibres. 30 tex yarn was produced using C-type travellers with a twist factor of αtex=31.6. Travellers of 8 different weights and 4 different coatings were used working with two spindle speeds of 7000 rpm and 10,000 rpm. Yarn hairiness was evaluated with the use of a Shirley Yarn Hairness Tester. The values of tension, breakage rate, count, twist, evenness, elongation and tensile strength of the yarn produced were measured. In addition the yarns were knitted into fabrics to observe and evaluate pilling. Some conclusions were drawn considering yarn hairiness.