Wool from merino sheep. The world's fine wool breeds are produced from Merino sheep or sheep with predominantly Merino blood. Merino wool is characterized by the uniform quality of the quilt, the quality count is more than 60, the smallest can reach more than 80, and most of them are in the range of 60 to 70; the length of the wool is 4 to 10 cm, the ends are flush, and the fibers No hair pith in the middle, positive cortex and paracortical layer or bilateral structure arranged side by side, forming dense and uniform curls (4-10/cm), the fiber surface is covered with fine scales, high oil content, net hair rate Lower than normal semi-fine wool and long wool, the color is white after washing, with an elegant silvery or pearlescent sheen. Merino wool has excellent spinning performance, high spinning count, soft and elastic feel, and is suitable for making fine worsted fabrics.

Merino sheep were first bred in Spain around the 15th to 17th centuries and are sheep with perfect skeletons. Under the different natural environment and feeding and management conditions in various regions, various families of Merino sheep are derived: such as Spanish Merino, French Rambouillet Merino, German Saxony Merino, Australian Merino, American Merino, South American Merino and Soviet Merino, etc. Although the wool quality of these Merino families is slightly different, because they all come from the same ancestral line, their genetic properties are stable and the wool quality is good, and they can be used as raw materials for high- and mid-grade worsted and high-quality woollen spinning.