Count of Yarn
The yarn count of yarn is important to produce the specific quality of yarn. Generally, when we get an order of finished products we have to calculate the count of yarn. Besides, it is important to give a specific yarn count as the pre-condition of a producer. It also shows the ability of a producer. So it has great importance in production. Lastly, let us know about yarn count and its application in yarn production.
Yarn Count:
The yarn count is a numerical expression that defines identically its fineness or coarseness. It also expresses whether the yarn is thick or thin. Moreover, a definition of yarn is given by the textile institute “Count is a number indicating the mass per unit length or the length per unit mass of yarn”.
Types of Yarn Count:
Yarn count measures in two ways. They are-
- Direct System (weight/length)
- Indirect System (length/weight)
Direct Yarn Count System:
In this system, the yarn count expresses the number of weight units in one length unit. Thus higher the count, the coarser the yarn. When this method uses to express the count of man-made fiber, jute, Silk, etc. By the following formula, the count is measured.
N = (W/l) / (L/w)
Where,
- N = The Yarn count
- W = The weight of the sample
- L = The length of the sample
- l = The unit of length
- w = The unit of weight
Tex, Denier, Pounds per spindle is the unit that is expressed in the direct system. The following are the direct yarn count systems. They are-
- Tex: The yarn number or count in the Tex system is the weight in grams of 1000m or 1 km of yarn.
- Denier: The yarn count in the denier system is the weight in grams of 9000m or 9 km of yarn.
- Pounds per Spyndle: The yarn count in pounds per spindle is the weight in pounds of 14,400yards of yarn. Jute count is expressed by this system.
Indirect Yarn Cout System:
In this system, the yarn count expresses the number of lengths in one weight unit. Thus higher the count, the finer the yarn. By the following formula, yarn count is expressed in an indirect system. The cotton count is expressed by an indirect system.
N = (L/w) / (W/l)
Where,
- N = The Yarn count
- W = The weight of the sample
- L = The length of the sample
- l = The unit of length
- w = The unit of weight
English count, Metric count, Worsted are expressed in an indirect system. They are-
- English: It is defined as the number of hanks (840 yards) per pounds. It is denoted by Ne.
- Metric: It is defined as the number of hanks (1000 m) per kg. It is defined by Nm.
- Worsted: It is defined as the number of hanks (560 yards) per pounds.
Anyhow, conversion is possible between two systems.
Now I will discuss jute count, which is expressed in pounds per spindle. In this system 14,400 yards = 1 Spyndle. If we found 9 pounds in 1 spyndle then its count will be 9. In this system higher the yarn count coarser the yarn.
Jute count can be calculated in another two ways:
- Tex method: Number of grams in 1000 m is that’s count. Say if we found 70 grams in 1000 m then its count is 70. Tex can be converted into Pounds per spyndle or Pounds per spyndle can be converted into Tex by the following way.
- Tex/34.45 = Pounds/Spyndle
- Pounds/Spyndle*34.45 = Tex
In this method, we can calculate jute count. Here 300 yards is equal to 1 Lea. The number of Lea in one pound is recommended its count. It is expressed in the following ways:
Lea Count= 48/ (Pounds/Spyndle)
In sum, different instruments are used to measure yarn count. However, I will try to discuss different count testing instruments in my next post. Eventually, the yarn count is an important part of the Quality control department. So we should have brief knowledge about the count of yarn.
thanks
very well & precise definition
SIR , PLEASE TELL ME ABOUT CONVERSION OR CALCULATION JUTE YARN FROM
NM TO POUND, TEX TO POUND , AND DENIER TO POUND.
THANKS
DEAR SIR 5/12/2016
GOOD TIME
PLS ADVISE WHIC IS BETTER IN WOOL/POLYESTER YARN COUNT 48/2 TE FINNES 25.6 OR FINNESS 23
Sir,I need jute burlap for construction use.how can I search best suppliers?
Sir,
Pls send us burlap products inquiry by return. Thanks Babul ssha
Super. Thanks for sare knowledgeable fir textile industry.
just want to know counts for 12 gaze
Use online yarn count conversion calculator http://xtextile.com/calculator.
Sir,
Shall be gratrful if you kindly give us details enquiry on any sorts of jute/ burlap products by return mail ( sjute2003@gmail.com) .
Thanking you,
Babul saha
Sutapa Jutex
Dhaka, Bangladesh
A.A. plz help me how can i have a start our business in the lowest investment.
Do you know how to account the yarn? Here is a machine to help you http://www.testextextile.com/product/yarn-count-tester-ty361/
Sir
Shall be grateful if you kindly give us information about yarn count
My salf Jisan Ali
I learn some thing new things
How much counts are in cotton yarn or in polyster yern
please I want to produce yarn strands from jute and Sisal. Can you help me by the country to find abundant sisal and jute fibre, cost and who to contact for the production