纱线毛羽.ppt

The hairiness of yarns This is the machine for testing the hairiness of yarns There exist three shapes about hairiness of yarns. End of hairiness: fiber ends out of the yarn base surface of the subject , while the rest inside the core-yarn. Yarn Hairiness measurement : Yarn Hairiness measurement according to the measuring principle is divided into: laws on Visual, photographic, gravimetric, optical method, and image analysis approach currently used is more electro-optical . Causes of yarn Hairiness : 1. raw material :Fiber types and characteristics such as length, fineness, flexural rigidity and torsion stiffness as well as raw materials containing short fiber content, trash content directly, such as yarn Hairiness Closing remarks The cause about hairiness of yarns mainly depends on fiber characteristics , yarn characteristics and methods of spinning, under the influence of spinning, twisting the yarn to form. 武汉纺织大学 纺织科学与工程学院 纺织102 101座机电话号码 黄剑 YG171B-2 Yarn hairiness tester Planktonic Hairiness: stick to a surface or other loose fibers on the Hairiness of Yarns or wild fibers. Loop Hairiness: within the core of both ends of the fiber into yarns, yarn showed middle basic surface, forming a ring or rings. 2. spinning processes :Different methods of spinning yarns make different structure, Hairiness is different 3.Winding process :Been subjected to friction about yarns in the winding process, and winding speed 4.Sizing also influnce the hairiness of yarns. 5.Some other reasons . Thank you for your listening!