Conversion of Count System:
We can convert the value of count from one to other systems by following only some formulas. There are 4 systems for yarn count conversions from one system to another system.
System of Yarn Count Conversions:
- Conversion from direct to direct
- Conversion from indirect to indirect
- Conversion from direct to indirect &
- Conversion from indirect to direct
There are two formulas to convert the yarn count as given below:
- Unknown count = Multiplying converting factor X Given the count
- Unknown count = Constant / Given count
Here the first one is used for the first two groups of conversion (direct to direct & indirect to indirect) and the second one is for the last two groups including direct to indirect & indirect to direct.
Before reading this conversion system you should read the following articles, as a result, you can understand easily.
- Yarn Count Conversion Calculation from One System to Another
- Direct System of Numbering Yarns and Calculations
- Indirect System of Yarn Numbering and Calculation
The table of converting factor and the count constant is given below:
Direct to Direct:
Known yarn
count in |
Multiplying converting factor for the unknown count | |
Tex | Denier | |
Tex | ——- | 9 |
Denier | 0.1111 | —— |
Jute count | 34.45 | 310 |
Example:
Denier of unknown count = Tex (known count) X 9
Tex of unknown count = 0.1111 X Den or Jute count
Indirect to Indirect:
Known yarn
count in |
Multiplying converting factor for the unknown count | |
Metric (Nm) | Worsted | |
Cotton (Ne) | 17 | 1.5 |
Example:
Metric Count = 17 X Known cotton or worsted count
Worsted Count = 1.5 X Known cotton or Metric count
Indirect to Indirect & Direct to Direct:
Known yarn
count in |
Constant | |
Tex | Denier | |
Cotton | 590.5 | 5315 |
Metric | 1000 | 9000 |
Example:
Metric = 9000 /Known Den count
Denier = 5315 /Known Ne
If we see the yarn conversion measurement system at a glance then the concept will be clear about the conversion of yarn count.
Yarn Count Conversion formula:
- Denier = 9 X Tex
- Ne X Denier = 0.5315
- Metric X Tex = 1000
- Tex X Ne = 590.5
- Ne = Metric X 0.5905
- Metric X Denier = 9000
- Tex = 34.45 X lb/ spyndle
Author of this Article: M. Hossen Uzzal Production Officer Monno Fabrics Ltd., Manikgonj Email: uhossen@gmail.com