(1) Count: The count of wool is expressed by metric counts. The count is large and the wool is thin, while the count is small and the wool is thick.
The metric count refers to how many kilometers of 1kg wool yarn is the number of yarn counts. For example, 1kg of wool with a length of 18000m is 18 yarns.
(2) Twist of wool yarn and wool yarn: The twist of wool yarn and wool yarn refers to the number of twists per unit length. The twist has a twist direction, including "S" twist and "Z" twist. The twist generally refers to the number of twists/m. The count of wool yarns is different, and the twist is also different. Twist coefficient" concept.
The selection of "twist coefficient", generally pure wool is greater than blended yarn, blended yarn is greater than chemical fiber yarn, high short hair content is greater than low short hair content, and yarn count is finer than yarn count.
(3) Strength and elongation of wool yarn and wool:
The tensile strength of wool yarn and wool is called strength. It is expressed by the load of the broken yarn, and the length of the wool yarn and wool yarn being stretched by breaking is called elongation.
The strength of wool yarn and wool yarn has a close relationship with the fastness and production efficiency of the fabric. Strength is the basis of the strength and elongation of the fabric. Therefore, the strength and elongation of the whole wool yarn and wool yarn is an important indicator of quality, because the strength and elongation directly affect its quality. , requires proper strength and elongation, too much will make the yarn and wool loose, and the strength will be reduced; if the strength is too small, the strength will increase and the wool and wool will become stiff. The strength and elongation of wool yarn and wool yarn vary with the raw materials used, the degree of processing, and the arrangement of fibers. The quality of the raw materials is good, the fibers are arranged neatly, and the twist is appropriate, the higher the strength of the wool yarn, the better the stretchability.