Quantifying Radial Fixation Gradients in Ultra High Twist Viscose Ply Yarns under Dynamic Alkali Steaming
Dense viscose ply yarns require controlled swelling alkali blends to eliminate core fixation gradients during dynamic steam fixation.
High Twist Yarn
Yarn Construction
Yarn manufacture involves spinning fibers together to create a continuous strand with a specific number of turns per unit length. The production of high twist yarn requires inserting more twists per meter than is standard for conventional weaving or knitting. This high-density rotation increases the cohesion of the individual fibers within the strand.
Fabric Texturing
Woven materials made from tightly twisted yarn develop a characteristic crisp feel and rough surface texture. When high twist yarn is woven into fabric, the internal tension causes the yarn to contract, creating a crepe-like appearance. This effect is highly prized for summer garments that sit away from the skin.
Pilling Resistance
Low-friction surfaces are less likely to shed fibers that entangle into small balls on the fabric surface. By locking the fiber ends tightly inside the spun structure, high twist yarn reduces the occurrence of garment pilling. This improves durability.
Processing Challenge
High internal torque makes freshly spun strands unstable and prone to snarling during downstream operations. Textile mills must treat high twist yarn with steam to set the twist and stabilize the structure before it can be used on high-speed knitting machines or looms. This extra processing step increases both production time and manufacturing cost, but it is necessary to prevent machine jamming and fabric defects.