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Yarn Count:
Count is a numerical value, which express the coarseness or fineness (diameter) of the yarn and also indicate the relationship between length and weight(the mass per unit length or the length per unit mass)of that yarn. Therefore, the concept of yarn count has been introduced which specifies a certain ratio of length to weight.
The fineness of the yarn is usually expressed in terms of its linear density or count. There are a number of systems and units for expressing yarn fineness. But they are classified as follows .
Types of Yarn Count:
1. Direct Count System
2. Indirect Count System
1. Direct Count System:
The weight of a fixed length of yarn is determined. The weight per unit length is the yarn count! The common features of aII direct count systems are the length of yarn is fixed and the weight of yarn varies according to its fineness.
The following formula is used to calculate the yarn count:
N= (W×l) / L
Where,
N =Yarn count or numbering system
W =Weight of the sample at the official regain in the unit of the system
L=Length of the sample l=Unit of length of the sample | |
In brief, definition of the above Systems is as follows 1. Tex system ..........................NO. of grams per 1000 meters 2. Denier .................................No. of Grams per 9000 meters 3. Deci Tex ..............................No. of grams per 10,000 metres 4. Millitex ................................No. of milligrams per 1000 metres 5. Kilotex............................... .No. of kilograms per 1000 metres. 6. Jute count........................No. of lb per 14,400 yds
The Tex of a yarn indicates the weight in grammes of 1000 metres yarn. So that 40Tex means 1000 meters of yarn weigh 40gm.
From above discussion it is concluded that, higher the yarn number(count) coarser the yarn and lower the
Yarn Count:
Count is a numerical value, which express the coarseness or fineness (diameter) of the yarn and also indicate the relationship between length and weight(the mass per unit length or the length per unit mass)of that yarn. Therefore, the concept of yarn count has been introduced which specifies a certain ratio of length to weight.
The fineness of the yarn is usually expressed in terms of its linear density or count. There are a number of systems and units for expressing yarn fineness. But they are classified as follows .
Types of Yarn Count:
1. Direct Count System
2. Indirect Count System
1. Direct Count System:
The weight of a fixed length of yarn is determined. The weight per unit length is the yarn count! The common features of aII direct count systems are the length of yarn is fixed and the weight of yarn varies according to its fineness.
The following formula is used to calculate the yarn count:
N= (W×l) / L
Where,
N =Yarn count or numbering system
W =Weight of the sample at the official regain in the unit of the system
L=Length of the sample l=Unit of length of the sample | |
In brief, definition of the above Systems is as follows 1. Tex system ..........................NO. of grams per 1000 meters 2. Denier .................................No. of Grams per 9000 meters 3. Deci Tex ..............................No. of grams per 10,000 metres 4. Millitex ................................No. of milligrams per 1000 metres 5. Kilotex............................... .No. of kilograms per 1000 metres. 6. Jute count........................No. of lb per 14,400 yds
The Tex of a yarn indicates the weight in grammes of 1000 metres yarn. So that 40Tex means 1000 meters of yarn weigh 40gm.
From above discussion it is concluded that, higher the yarn number(count) coarser the yarn and lower the