Textile fiber, yarn fineness representation calculation:
Fixed length system:
TEX: The weight in grams of a 1000 m length yarn at a given moisture regain is called a special number.
Formula: TEX = (G/L) * 1000
G is the weight of the yarn (grams), and L is the length of the yarn (meters)
Denier (D): The weight of the 9000 meter long wire at the nominal moisture regain is called the denier.
Formula: NTEX = (G/L) * 9000
G is the weight of the yarn (grams), and L is the length of the yarn (meters)
Fixed weight system:
Metric count (public branch): The length of meters of a yarn (silk) is the number of squares of the yarn (wire).
Formula: NM = L/G
L is the length (code) of the yarn (wire), and G is the weight (in pounds) of the yarn (wire)
Inch Count (British): The number of 840 yards of a pound of yarn that is the number of grams of the yarn.
Formula: NE = (L/G) * 840
L is the length of the yarn (wire) (meter), and G is the weight of the yarn (wire) (g)