Investigation into the effects of yarn structure and yarn count on different types of core-spun yarns

Abstract

The scope of this research is to study the effect of yarn structure and yarn count on properties of types of core-spun yarns, including elastic core/T400, elastic core/Lycra, dual core, and tri-core yarns. Five types of yarn structures and three yarn counts were produced. Mechanical properties, yarn irregularity, imperfections, and hairiness were measured. Full-factorial analysis and Tukey tests were performed on the test results. It was concluded from factorial analysis that yarn count, yarn structure, and two-way interaction had a significant effect on yarn properties, except for yarn hairiness where the effect of yarn structure and two-way interaction was not significant. A Tukey pairwise comparison was used in this study to specify exactly the subgroups of yarn count and yarn structure that have a significant mean difference. The scanning electron microscopy (SEM) images of the dual-core yarns and tri-core yarns were performed to illustrate the structure of these yarns.

Influence of core yarn structure and yarn count on yarn elastic properties

“…(Elastane/T400) core-spun yarn has the minimum value for stress decay at yarn count (10 Ne), while both of single-core/T400 yarn and elastane/T400/elastane core yarn achieved the lowest values for stress decay at yarn counts (14 and 18 Ne). The possible reason for these findings is increasing the elongation of elastane/T400/elastane core yarn due to it containing three elastic components as explained in a previous study, 13 and as clearly seen in SEM images of yarn structure in Figure 3, and may be due to the reduction of sheath thickness as a result of increasing the core contents. This may reduce the stability of the fiber sheath structure during stretching and consequently elastic recovery.…”

“…It was concluded that PTT/PBT dual core-spun yarn has the lowest unevenness and hairiness values. Elrys et al 13 studied the effect of yarn structure and yarn count on the properties of different types of corespun yarns, including single-core/T400, single-core/ lycra, (T400/lycra) dual-core, and (lycra/T400/lycra) tri-core yarn. It was concluded that tri-core yarn has the maximum breaking-elongation, the minimum Neps and thin places, and the minimum friction coefficient.…”

Low-bagging (growth) stretch denim yarn production by spinning optimization of cotton-wrapped dual-core elastane and T400 multifilament

“…The literature review provides enormous outcomes on the improvement of the properties of core-spun yarns containing single-core filament, mostly elastane. Textile researchers and producers have very recently developed dual-core yarns, and due to being a new type, there is a special focus on these yarns [ 4 , 7 , 8 , [13] , [14] , [15] , [16] , [17] , [18] , [19] ]. However, less significant research on optimizing the spinning parameters of dual-core yarns highlights the need for further investigations.…”

Enhancing the quality of elastane-cotton core yarn by compact spinning

“…Elrys et al. investigated the effect of yarn structure and yarn count on the properties of different types of core-spun yarns ( Elrys et al., 2021 ).…”