Yarn count is a numerical expression that indicates the fineness or coarseness of a yarn. It is an important indicator of thickness, softness, and other qualities of textiles such as towels and sheets. The yarn count is a number that indicates the mass per unit length or the length per unit mass of yarn. There are two systems to recognize the title and the number of the yarn: the indirect system and the direct system.
Indirect System
- The count of yarn expresses the number of length units in one weight unit. Thus, the higher the count, the finer the yarn. This system is generally used for cotton, worsted, linen (wet spun), etc. .
- The formula for calculating the indirect count is:
- W = The weight of the sample
- w = The unit weight of the system
- L = The length of the sample
- l = The unit length of the sample
- Count = W/w x L/l
Direct System
- The count of yarn expresses the number of weight units in one length unit. Thus, the higher the count, the coarser the yarn. This system is generally used for synthetic fiber, jute, silk, etc. .
- The formula for calculating the direct count is:
- N = The yarn number or count
- W = The weight of the sample
- w = The unit weight of the sample
- L = The length of the sample
- l = The unit length of the sample
- Count = W/w x L/l x N
In summary, yarn count is a numerical expression that indicates the fineness or coarseness of a yarn. It is an important indicator of the quality of textiles such as towels and sheets. There are two systems to recognize the title and the number of the yarn: the indirect system and the direct system.
