Yarn count and yarn numbering system
Yarn count and yarn numbering system Definition The count of a yarn is a numerical expression which defines its fineness. It is also called as yarn number or liner density. It is also called as yarn diameter. The fineness of yarn cannot be expressed easily inter-mesh of diameter as in case of wires or rods. The instrument such as micrometer cannot be used to determine the diameter of yarn. Therefore special methods are used to determine the fineness or coarseness of yarn. System of yarn numbering According to the definition given by the textile institute count is a number indicating the mass per unit length or the length per unit mass of yarn. Several systems and unit are used for expressing the yarn number. Indirect system of yarn numbering In this system: 1. The count is the number of units of length per unit of weight of yarn. 2. Higher the count finer is the yarn. 3. This system is general...