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YARN COUNT
THE FIXED LENGTH SYSTEM
The fixed length or direct system is very straight forward
there are 3 values,Tex,
dtex and
Denier
Tex
- Tex is the most commonly used value
- Tex is based on the weight in grams of 1,000 metres of yarn
dTex
- dtex is used for very thin threads like machine sewing threads
- With these very thin threads a Tex value could be misleading
- dtex is Tex multipied by ten
- dTex is based on the weight in grams of 10,000 metres of yarn.
Denier
- The denier system is used for continuous filament yarns and threads,
silk and nylon for example
- Denier is based on the weight in grams of 9,000 metres of yarn,
for all direct counts
the higher
the number the thicker the yarn
But what do the numbers mean?
The direct count numbers are usually written as one whole number,
for example 30 Tex or, dtex 303 or 15 denier.
Sometimes the number will be followed by the number of plys contained in brackets,
for example dtex 300(3).
Unlike the indirect count, the Tex or dtex number describes the final yarn.
In other words dtex 300(3) means
that after the 3 ends have been plyed together to make a yarn,
10,000 metres of the finished yarn weighs 300 grams.
The Tex system is a logical and direct number system,
a TEX 30 yarn is twice as thick as a Tex 15 yarn
