Page 72 - Shawl Weaving Artisan - TT

Example from one opposite to another. So, the conversion formulas
will again involve division, but this time, the direct count
Convert 30 Ne cotton yarn to Denier.
will be in the denominator.
Using the formula:
1 From tex to english cotton count (Ne)
Denier=305315
• You have: Tex – Remember: Higher Tex = thicker
Denier≈177.17 yarn.
So, a 30 Ne yarn is approximately 177.17 Denier. Again, • You want: English Cotton Count (Ne) – Remember:
a finer yarn (30 Ne) corresponds to a lower Denier value, Lower Ne = thicker yarn.
but the Denier number is larger than Tex because of the The rule: To get English Cotton Count from Tex, you
different unit lengths.
always divide a special number (around 590.5) by the
3 Metric Count (Nm) to Tex Tex value.
• Metric Count (Nm): Number of kilometers (1000 Formula: Ne=Tex590.5
meters) of yarn per kilogram (kg) of yarn.
Why 590.5? It’s the conversion factor that makes the
• Tex: Weight in grams of 1000 meters (1 kilometer) of units align.
yarn.
(1 lb = 453.592 grams; 1 hank = 840 yards = 768.096
Conversion Formula: meters.

Tex=Nm1000 Ne=Weight in lbsLength in hanks=Weight in
Explanation grams/453.592Length in meters/768.096
• 1 kg = 1000 grams. Since Tex=Length in metersWeight in grams×1000,
we can rearrange to get Length in metersWeight in
• If ‘Nm’ kilometers of yarn weigh 1 kg, then ‘Nm’ grams=1000Tex.
kilometers (or Nm×1000 meters) weigh 1000 grams.
Substitute this into the Ne equation and simplify, you get
• Tex is grams per 1000 meters. Tex=Length Tex590.5.)
in metersW eight in grams×1000
Tex=Nm×10001000×1000 Tex=Nm1000 Example
Example You have a yarn described as “20 Tex”. This means 1000
meters of this yarn weigh 20 grams. It’s a moderately
Convert 60 Nm yarn to Tex. thick yarn (relatively high Tex).

Using the formula: To find its English Cotton Count (Ne):
Tex=601000 Ne=20590.5
Tex≈16.67 Ne≈29.525
So, a 60 Nm yarn is approximately 16.67 Tex. Higher Nm Meaning: A 20 Tex yarn is approximately 29.5 Ne. Both
(finer yarn) results in lower Tex (finer yarn). numbers describe a moderately thick yarn (higher direct
Converting yarn count from the direct system to the count, lower indirect count).
indirect system 2 From denier to english cotton count (Ne)

• Direct System (e.g., Tex, Denier): “How much does • You have: Denier – Remember: Higher Denier =
a certain length of string weigh?” thicker yarn.
- Higher number = Thicker string (heavier for the • You want: English Cotton Count (Ne) – Remember:
same length) Lower Ne = thicker yarn.
- Lower number = Thinner string (lighter for the same The rule: To get English Cotton Count from Denier, you
length) always divide a special number (around 5315) by the
• Indirect System (e.g., Cotton Count (Ne), Metric Denier value.
Count (Nm)): “How many pieces of string do I get for Formula: Ne=Denier5315
a certain weight?”
Why 5315? It’s essentially 590.5×9, because Denier is
- Higher number = Thinner string (more length for based on 9000 meters while Tex is based on 1000 meters
the same weight) (so Denier is 9 times Tex for the same yarn).
-- Lower number = Thicker string (less length for the Example
same weight)
You have a yarn described as “150 Denier”. This means
When you convert from a direct system (where a higher 9000 meters of this yarn weigh 150 grams. It’s a common
number means thicker) to an indirect system (where a medium-thickness yarn.
higher number means thinner), you’re essentially going
62 Textile & Handloom: Shawl Weaving Artisan : (NSQF - 2024) R.T. Ex.No 1.4.36&37