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Yarn counting system | Yarn numbering system | Conversation factor of Yarn |

Yarn counting system  | Yarn numbering system | 


What is yarn count?

Ans- Count is a numerical expression, which defines its fineness or coarseness of yarn.

According to the textile institute " count is number indicating the mass per unit length" & Length per unit mass".

What types of yarn numbering system?

Ans- There are two basic types-

1- Direct System (Mass per unit Length)

2- Indirect System (Length per unit Mass).

What is the Cotton count?

Ans- It is defined as the length of a number of hanks of 840 yards per pound of yarn.

What is 30 Ne?

It is defined as the 30 numbers of hanks of 840 yards (840 yards x 30 hanks) of length per pound.


Counting system

What is a counting system?

A counting system is a method to express the yarn fineness and thickness. 

DIRECT SYSTEM

In this system count indicates the Mass per unit length.

Name of the System

Weight Unit

Length Unit

Denier (D)

1 Gram

9,000 meters

Tex (Tex)

1 Gram

1,000 meters

D tex

1 Gram

10,000 meters

Jute, Hemp

1 Pound

14,400 yards

 In this system higher will be the count Coarser will be the yarn.

 

 Formula=      W x l

                       L x w


Stand For-

W= Actual weight of yarn.

l= Unit length of yarn.

L= actual length of yarn.

w= Unit weight of yarn.


INDIRECT SYSTEM

In this system count indicates the length per unit mass (weight).

Name of the System

Weight Unit

Length Unit

Cotton English System (Ne)

1 Pound

Hank of 840 yards

Cotton Matric

1 K.G.

Hanks of 1000 Meters

French Count (Nf)

1.5 K.g.

Hanks of 1000 Meters

Worsted

1 Pound

Hanks of 560 yards

Linen

1 Pound

Hanks of 300 yards


In this system higher will be the count finer will be the yarn.


Formula=       L x w

                      W x l

Stand For-

L= actual length of yarn.

w= Unit weight of yarn.

W= Actual weight of yarn.

l= Unit length of yarn.



Diameter of yarn:

Value table:

Direct System

Name of Fibre

Value(F)

Reduction

Unit Length(l)

Unit Weight(w)

Denier

20.36 %

0 %

9000 Meters

1 Gram

Tex

678.6 %

0 %

1000 Meters

1 Gram

Flex, Hemp

115.6 %

15 %

14,400 Yard

1 Pound

Raime, Jute

115.6 %

15 %

14,400 Yard

1 Pound

Indirect system

Name of Fibre

Value(F)

Reduction

Unit Length(l)

Unit Weight(w)

English Cotton (Ne)

28

8 %

840 Yard

1Pound

Worsted

22.8

10 %

560 Yard

1 Pound

Linen

16.7

8 %

300 Meter

1 Pound

Woolen York Shear (WYS)

15.4

15 %

256 Yard

1 Pound

New French

0

0

1000 Meter

500 gram

Span Silk

0

8 %

-

-

New Matric (Nm)

 

 

1000 Meters

1 Kg

 

There are two systems of the diameter of the yarn.

1. Pirces formula.

2. Ashenhurts formula.

Calculate the diameter of yarn in a Direct system:

1. Pirces formula.

2. Ashenhurts formula.


Calculate the diameter of yarn in an Indirect system:

1. Pirces formula.


Diameter= 1/ F Uunder root N

F= Value of the yarn.

N= Count of yarn


2. Ashenhurts formula.

Diameter= Under root Yards/ L.bs- reduction


Yard= Unit length of yarn.

L.bs= Count of yarn.


For more details about the handloom knowledge please visit our website 


Method to calculate the actual weight of Warp required: Please stay with @@mehersambalpurihandlooms.


Conversation Factor of Yarn

 

There are Three types of Yarn counting system:

1.    Indirect System

2.    Direct System

3.    Universal System

 

Conversation The factor of Yarn:

1.    Indirect to Indirect System-   CK/CF

2.    Direct to Direct System-        CK/CF

3.     Indirect to Direct System-    CK x CF

4.    Direct to Indirect System-        CK x CF

 

Note: CK= Count Known, CF= Count Found

 

1) Example of Indirect-to-Indirect System

Q= New English Cotton (NeC) to New English Worsted (NeW)

Formula – CK/CF

So, CK is NeC  and CF is NeW

Count NeC formula is = Length in Yard

                                     840 x Wt. In Lbs

 

Count NeW formula = Length in Yard

                                    560 x Wt. in Lbs

 

So, formula is CK/CF=   = Length in Yard      /    Length in Yard

                                       560 x Wt. in Lbs             840 x Wt. In Lbs

 

       In mathematical Formula=          Length in Yard     X    840 x Wt. In Lbs

                                                          560 x Wt. in Lbs             Length in Yard 

=560/840=0.6667

 

So, whereas we find NeC=0.6667 X NeW

  

So, whereas we find NeW=1.5 X NeC

 

 

2)  Example of Direct-to-Direct System

Q= Tex (Tex) to Denier (Dr)

Formula – CK/CF

So, CK is Tex  and CF is Denier

Count Tex formula is = Weight in Grams X 1000

                                     Length in Metre

 

Count Denier formula = Weight in Gram  X 9000

                                             Length in Metre

 

So, formula is CK/CF=   = Weight in Grams X 1000    / Weight in Gram  X 9000

                                                    Length in Metre                     Length in Metre

 

       In mathematical Formula=          Length in Yard     X    840 x Wt. In-Lbs

                                                          560 x Wt. in Lbs             Length in Yard 

=1000/9000=1/9

 

So, whereas we find Tex=Deniar/9  

So, whereas we find Deniar=Tex x 9

                                                    

 

3)  Example of Indirect-to-Direct System

Q= New English Cotton (NeC) to Tex (Tex)

Formula – CK x CF

So, CK is Tex  and CF is Deniar

Count NeC formula is = Length in Yard

                                      840 x Wt. In Lbs

 

Count Deniar formula = Weight in Grams X 1000

                                              Length in Metre

 

So, formula is CK x CF=   = Length in Yard   X       Weight in Grams X 1000

                                                 Length in Metre           840 x Wt. In Lbs

 

So, here we can change the CK as the same to CF so, here we can easily divide.

 

   In mathematical Formula= Length in Metre x 453.6gms   X Weight in Grams X 1000

                                          840 x Wt.in Gram x 0.9144 metre            Length in Metre

 

= 453.6 x 1000   = 590.5

    840 x 0.9144

 

So, whereas we find NeC=590.5 / Tex

So, whereas we find Tex=  590.5 / Ne

 

 

4)  Example of Direct-to-Indirect System

Q= Denier (Dr)   to   New English Worsted (NeW)

Formula – CK x CF

So, CK is Denier and CF is New English Worsted (NeW)

Count Denier formula is = Weight in Gram  X 9000

                                             Length in Metre

 

Count Denier formula =  Length in Yard

                                        560 x Wt. in Lbs

 

 

So, formula is CK x CF=   = Weight in Gram  X 9000   X    Length in Yard

                                                   Length in Metre                  560 x Wt. in Lbs

 

So, here we can change the CK as the same to CF so, here we can easily divide.

 

  In mathematical Formula= Wt. in Lbs x 9000 x 453.6gms   X   Length in Yard

                                               Length in Yard x 0.9144               560 x Wt. in Lbs

= 9000 x 453.6    = 7972

   0.9144 x 560

 

So, whereas we find NeW=  7972 / Denier  

So, whereas we find Deniar=  7972 / NeW

 

 

We can convert to of 1s New English Cotton into different System shown table below:

 

Measurement                               Value                 Unit

Tex                                            590.54                   Gram / Kilometre

Deniar                                        5314.87                Grams / 9000 Metres

Desi Tex                                    5905.41                 Grams / 10,000 Metres

Linen, Hemp, Jute                     17.14                     Lbs / 14,400 Yards

Cotton English                           1.0000                   840Yards / Lbs

Metric                                        1.6934                   Kilometre / Kg

Spun Silk                                   1.0000                   840 Yards / Lbs

WYS                                          3.2812                   256 Yards / Lbs

Wollen Worsted                         1.5000                    560 Yards / Lbs

 

 

Ply or Twist of Yarn

Number of Twist yarn Twisted together to form plied yarn is known as a ply of Yarn. Yarn may be double, triple or four plied. Generally, we used plied yarn in Warp and Weft but, sometimes single-ply yarn may be used in weft due to lesser cost.


Difference between by the yarn 2/60s and 60/2s Count of Cotton yarn?

Ans-

2/60s= 2 threads of 60s single yarn twisted together.

3/60s= 3 Threads of 60s single yarn twisted together.

 

60/2s= 2 Threads of 120s single yarn are twisted together.

60/3s= 3 Threads of 120s single yarn are twisted together.

 

Folded Yarn

It is not twisted but two (2) or more threads remain together untwisted.

30s Two-fold= 2 threads of 30s remain together untwisted.

30s 10-fold = 10 Threads of 30s remain untwisted.

*Note- when Cotton is written 24/40, means 24s count cotton and 40s count cotton are together untwisted.

 

Twist

Number of turns per unit length of yarn is called twist. The yarn may be twisted in Two directions:

1.    “S” Twist- If the yarn is twisted in Clock wise direction, then it is called ‘S’ twist yarn.

2.    “Z” Twist- If the yarn is twisted in Anti-Clock wise direction, then it is called ‘Z’ twist yarn.

Cotton Count

If the 10 Hank of Cotton Yarn (Each of 840 Yards) weight in One pound, then it is called the 10s Cotton.

Example:

1.    1 hank of 840 Yard length having in One pound, then it is called the 1s Cotton.

2.    2 Hank of 840 Yards length is in One pound then it is called 2s Cotton.





Q. Find out the resultant count of yarn 20s, 30s, and 60s when twisted together?

Ans:-

20s 1 Hank = 1/20 Pound

30s 1 Hank = 1/30 Pound

60s 1 Hank = 1/60 pound

Above 3 types twisted together=

   1   +    1    +    1    

20         30        60

=   6  +  4  +  2 

           120

=       12 

=     1      

      10     

So 1/10 means 10s Count

Ans is 10s Count.

 

OR

In Other Formula: -

Q. Find out the resultant count of yarn The 20s, 30s, and 60s when twisted together?

Ans:-

Formula= First multiple Two counts together then

Multiple the result count in the rest count.

Example:-

20s 1 Hank = 1/20 Pound

30s 1 Hank = 1/30 Pound

60s 1 Hank = 1/60 pound

Ans= 20s x 30s

         20s + 30s

=   600

      50

=12

Next the step is multiple the result in rest count=

Result 12  x 60s

    12 + 60

= 720

    72

=10s

So, final result is 10s Count.



 

For more details about the handloom knowledge please visit our website 


 

 


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