Yarn Manufacturing Technology Related Viva-1 : Question about "Count or Yarn Count"

What Is Yarn count:
Count is a numerical expression which defines its fineness or coarseness.
Definition by Textile Institute:
“Count: A number indicating mass per unit length or length per unit mass of yarn.”

What Types of  Yarn numbering/counting  systems:There are two basic systems of yarn numbering:
1.    Direct system (mass per unit length)
2.    Indirect system (length per unit mass)


1.Direct system:
In a direct yarn counting system count is the weight of a unit length of yarn.
Let,
N= Yarn number or count
W= Weight of sample
L= Length of the sample
l= unit of length of the system
Then,
N =     W x l
              L
Example of direct systems: Tex, millitex, kilotex, Denier, Jute etc

2.Indirect system:
In an indirect yarn counting system count is the unit of length per unit of weight of yarn.
Let,
N= Yarn number or count
W= Weight of sample
L= Length of the sample
l= unit of length of the system
w= unit of weight of the system
Then,
N =     Lxw     
            lxW
Example of indirect systems: Cotton (Ne), Metric (Nm), Worsted etc

What is count(Ne): It is defined as the length in hank of 840 yds per pound of yarn.
What is 30 Ne: It is defined as the 30 hank (840x30 yds) of length per pound of yarn.
What is Tex: It is defined as the weight in grams per km of yarn.
What is Millitex: It is defined as the weight in milligrams per km of yarn.
What is Kilotex: It is defined as the weight in kilograms per km of yarn.
What is 10 tex: It is defined as 10 gm of weight per km of yarn.
What is 110 denier: It is defined as 110 gm of weight per 9 km of yarn.



What is Unit of Length & Weight(mass) in Direct counting system:

Name of the System
Unit of mass
Unit of length
Tex
gm
km
Denier
gm
9km
Jute
Pound(lb)
14,400 yards (spyndle)

What is Unit of Length & Weight(mass) in indirect counting system:

Name of the System
Unit of length
Unit of mass
Cotton (British or English)
840 yards(hank)
Pound(lb)
Metric
km
kg
Worsted
560 yards (hank)
Pound (lb)

5 comments:

Unknown said...

Thaks,its verry halpfull

Yarn Count said...

Good Post. Thread ticket numbering is another key question for thread counting. Thanks.

Unknown said...

valo

Live Tv said...

Thanks admin, This is really helpful for us, we want more

Online Garments said...

Yarn calculation formula. https://onlinegarmentsacademy.blogspot.com/2019/04/textile-spinning-yarn-calculation.html

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