Assessment of the Influence of the Structural, Material and Processing Parameters on the Knitted Loop Length with ANOVA

Five different weft knitted structures (two double and three single), made of two materials (polyacrylonitriPAN fibres and viscoseVIS), two yarns (conventional and elasticized), in two densities (open and close) and relaxed by two procedures (dry and wet) were systematically explored. Impact of one or more factors on the loop length was studied. The measurement results were analyzed by multifactorial analysis of variance (ANOVA). The main structural parameters factors with the greatest impact are: density, knitted structure and relaxation. Important twofactor interactions are: materialyarn, yarnrelaxation and materialrelaxation. The results of the 5x2experiments were separated into two groups according to the yarn structure (conventional and elasticized). They were analyzed by 4factorial ANOVA. It was established that within each of the two groups, density and fabric structure exhibit greatest impact on the loop length. Relaxation has much larger impact in the case of elasticized yarns than in the case of conventional yarns.