Performance indicators of fancy yarns

(1) Count: The count of yarn is expressed in metric units, with larger counts indicating finer yarn, smaller counts indicating thicker yarn.
The metric count refers to the number of yarns per kilometer of 1kg yarn. If 1kg of yarn has a length of 18000m, it is equivalent to 18 yarns.
(2) Twist of wool yarn and yarn: The twist of wool yarn and yarn refers to the number of twists per unit length. Twist has a twist direction, including "S" twist and "Z" twist. Twist generally refers to the number of twists per meter, and the twist of wool yarn varies with the number of yarns. In order to compare the twist of wool yarn and yarn with different counts, the concept of "twist coefficient" is commonly used.
The selection of "twist coefficient" generally refers to pure wool being greater than blended yarn, blended yarn being greater than chemical fiber yarn, high short wool content being greater than low short wool content, and fine yarn count being greater than coarse yarn count.
(3) Strength and elongation of wool yarn and yarn:
The tensile strength of wool and yarn is called strength. Expressed by the weight of the broken yarn, the length at which wool and wool are stretched due to breaking is called elongation.
The strength of wool yarn and yarn is closely related to the fastness and production efficiency of fabrics. Strength is the foundation of fabric strength and elongation. Therefore, the strength and elongation of all wool yarn and yarn are important indicators of quality. Due to the direct impact of strength and elongation on its quality, it is necessary to have appropriate strength and elongation, which may cause the wool yarn and yarn to relax and reduce strength; If the stretching force is too small, the strength increases and the wool and yarn become stiff. The strength and elongation of wool yarn and yarn vary depending on the raw materials used, the degree of processing, and the arrangement of fibers. If the raw materials are of good quality, the fibers are arranged neatly, and the twisting is appropriate, the strength of wool yarn and yarn will be higher, and the elasticity will also be good.