Loose yarn, also known as wool, is mainly made of wool and then spun into strands, which are used to spin sweaters, vests, hats, gloves, pants and other spring and autumn clothing items. This kind of wool not only keeps warm, but also plays a good decorative role.

Wool performance index

(1) Count: The count of wool is expressed by metric count, including big count, fine count, small count and coarse count.

Metric count refers to how many kilometers 1kg wool has. For example, 1kg wool with a length of 18000m is 18 yarns.

(2) Wool yarn and twist of wool yarn: The twist of wool yarn and wool yarn refers to the twist per unit length. The twist has twist direction, including "S" twist and "Z" twist. Twist generally refers to twist/meter, and the twist of wool yarn with different count is different. In order to compare the twist of wool yarn with different counts, the concept of "twist coefficient" is often used.

The choice of "twist coefficient" is generally that pure wool is greater than blended yarn, blended yarn is greater than chemical fiber yarn, short hair content is higher than short hair content, and fine count is greater than coarse count.

(3) Strength and elongation of wool yarn and wool.

The tensile strength of wool yarn and wool yarn is called strength. In terms of the weight of broken yarn, the length of wool yarn and wool yarn stretched due to broken ends is called elongation.