Surface Quality
Amount of protruding fiber ends and loops along the length of a textile yarn determines the tactile texture and processing behavior of the strand. Minimizing the yarn surface hairiness is essential for producing smooth, high-grade linen fabrics for apparel and household goods. This quality metric influences the frictional behavior of the yarn during fabrication and winding.
High hairiness leads to fiber shedding and increased friction against the loom parts.
Spinning Influence
Mechanical forces during the spinning and winding processes dictate the orientation of fiber ends on the yarn body. The yarn surface hairiness of wet-spun linen is lower than that of dry-spun yarn because the water bath flattens the fibers and adheres them to the core of the yarn. Mill technicians measure this property using optical hairiness testers that count the number of fibers extending beyond a specific distance from the yarn core.
This analysis helps to evaluate the condition of the spinning rings and travelers, which can cause increased hairiness when worn out. High winding speeds also increase the count of protruding fibers, which requires the adjustment of winding tensions to maintain the desired smooth finish.
Finishing Treatment
Sizing processes are applied to the yarn before loom processing to coat the protruding fibers and stick them to the yarn body. This treatment prevents the fibers from being rubbed out of the yarn core during the mechanical stress of fabric production. Successful sizing results in a clean, smooth finish that is free from lint accumulation.
