Polyester spinning-100%polyester yarn:
1.FDY (filament): the single fiber is parallel, smooth and even, divided into bright, semi-dull,dull the brightness is getting weaker and weaker.
2. DTY (elastic yarn):single fiber bending,low stretching, fluffy.
3. DTY network yarn (low elastic network yarn): There are staged network points to increase the bundle ability between fibers (divided into non-network, light mesh, medium mesh and heavy mesh, and the heavy mesh can be used as non-sizing yarn).
Generally, FDY and DTY must be sizing or twisted before they can be used as warp.
Sizing: increase the strength of silk thread; cohesion between fibers; make the fiber surface smooth and easy to weave.
Twisting: increase the strength; increase the cohesion between fibers; make the fabric have a crepe effect.
Twist: (T) The number of twists per centimeter of silk thread.
0-10 T/CM weak twist
10-20 T/CM medium twist
20 T/CM strong twist
4. မြင့်မားသော elastic polyester ချည်:high stretchability, high fluffy.
5. polyester cationic ချည်: It can produce two-color effect with ordinary polyester yarn, easy to dye, and bright in color.
The specification range of polyester yarn for polyester webbing is between 20D-6000D
Polyester low elastic yarn: 150D, 300D, 600D, 900D
Polyester high elastic yarn: 70D, 140D
Network yarn: 150D, 300D, 600D, 900D
The specifications of PP yarn for PP webbing generally include: 240D, 300D, 450D, 600D, 750D, 850D, 900D, 1000D, etc.