Yarn Number or Count Measurement System
Count:
Count of yarn is very important to produce specific quality yarn. It is the coarseness or fineness of yarn. In the other hand, we can say count is a number is determined the mass per length or the length per unit.
Count Measurement System: There is two systems for the measurement of count.
- Direct System
- Indirect System
In this counting system, the yarn number or count is the weight of a unit length of yarn. Here, higher the number, finer the yarn and vice versa. Here, the weight of yarn is fixed, length is variable.
Formula:
W X l
N = …………….
w X L
Where,
N = Yarn count
L = Length of sample
l = Unit length
W = Weight of sample
w = Unit weight
Commonly used units in this system of measurement are:-
- Tex ( 1 Tex = 1g/ 1000m )
- Spyndle (1 Syndle = 1lb/14400yds)
- Denier ( 1 Denier = 1g/ 9000m )
In this counting system the yarn number or count is the length of a unit weight of yarn. Here, lower the number, finer the yarn and vice versa. Here, the length of yarn is fixed, weight is variable.
Formula:
L X w
N = ………………..
l X W
Where,
N = Yarn count
L = Length of sample
l = Unit length
W = Weight of sample
w = Unit weight
Commonly used units in this system of measurement are:-
- Cotton or English Count
- Metric Count
- Worsted Count
