Production of vortex dual core-spun yarns consisting of sheath binary fiber blends and investigation of fabric performance

Advancements in textile engineering have led to the development of new elastic yarns with superior performance and functionality in current fabric applications. This study discusses the manufacture of dual-core-spun yarns using a modified vortex spinning machine that combines polyester filament and elastane as core components and binary fibers (polyester with lyocell, viscose, and cotton) as sheath. Six types of yarn were manufactured in two count levels (Ne 12 and Ne 16) and then utilized to make denim fabrics. Standard tests were used to systematically assess the impact of sheath composition and yarn count on yarn and fabric properties, and statistical analyses were performed using two-way MANOVA. Findings demonstrated that sheath fiber composition and yarn count were important factors in determining the structural and mechanical behavior. Lycocell-based sheaths in yarns, especially the finer counts, exhibited better tensile strength, reduced hairiness, and better-quality indices. In line with this, the fabrics produced using these yarns neutralized increased elasticity and dimensional stability. The study highlights the potential of dual-core vortex-spun yarn in the development of high-performance stretch fabrics that are structurally uniform and exhibit better durability.