Size of Embroidery Threadqthread.com 02 Jun, 2008 Origin: qthread.com
Size of embroidery thread is defined in thickness and ply. I.e. the size of polyester embroidery thread is 108D/2, 108D means thickness and 2 means plies.
The thickness of embroidery thread is represented by Denier.
D, - Denier -, means grams of 9000 meters' fibre. Formula is shown as bellow.
g - Weight of fibre, grams
L - Length of fibre, meter.
D bigger, thread thicker, vice versa, D smaller and thread thinner.
Commonly used sizes of embroidery thread are 150D/2，120D/2，108D/2，75D/2 etc. But most commonly used sizes are 120D/2 for rayon embroidery thread and 108D/2 for polyester embroidery thread.
Take the size of polyester embroidery thread, - 108D/2 -, as example, 108D means size of the thread's material is 108D, i.e. weight of 9000 meter's single ply fibre is 108 gram, and 2 means the thread is twisted in two plies of fibre.