There are 2 types of ratios (composition).
1-- The production composition.
2-- The final composition (the composition of the yarn).
All around the world, They use the composition during production.
For example, NE 20/1 - 70/30.
This means, We put 70% cotton and 30% polyester during production.
But, The final composition will NOT be 70/30.
Cotton ratio can be can be less than 50%.
1-- Production composition;
Cotton / Polyester;
We mix cotton and polyester fibers during the production.
For example, we put 70% cotton and 30% polyester during the production.
2-- The final composition
(the composition of the yarn);
The composition of the yarn varies.
Cotton ratio can be 40%,
Polyester ratio can be 60%.