What is Polyester (PET) and Polyester Spinning？
1, strong wear-resistant.
2. Absorption of water is poor, and the moisture regain is set to 0.4% (20°C, relative humidity 65%, 100g polyester absorbs 0.4g).
3, prone to static electricity, easy pilling.
4, acid and alkali resistant. Note: A certain concentration of alkali destroys the polyester surface at a certain temperature to make the fabric feel soft.
5, corrosion resistance, light resistance is better.
6. Fabrics made of polyester fibers are not easy to wrinkle, have good dimensional stability, and are easy to wash and dry.
1, FDY (filament): single fiber parallel smooth and even, large light, light, half light, extinction, the brightness is getting weaker.
2, DTY (elastic wire): single fiber bending, low expansion, fluffy, as shown.
3, DTY network wire (low-elastic network wire): a phase of the network point, increase the bundled capacity between fibers (sub-network, light network, in the network, heavy network, which can be used to avoid plasma heavy wire).
Under normal circumstances, FDY and DTY must be sizing or twisted for warp threads.
Sizing: increase the strength of the thread; the fibers have a cohesive force; make the fiber surface smooth and easy to weave.
Twist: increase strength; increase the cohesion between the fibers; make the fabric have a ripple effect.
Twist degree: (T) The unit is centimeters, the number of turns of the silk thread.
0-10 T/CM Weakness twist
10-20 T/CM Moderate twist
20 T/CM Powerful twist
4, POY (pre-oriented silk): Extensible can not rebound, can not be alone to make warp or weft, must be combined with other wires, can be extended 1.6 times, POY wire is a low-elastic network of semi-finished products. Typical fabrics: washed wool.
5, ATY (Air Deformation Yarn): The surface is not smooth, there are terry. Typical fabric: velvet
6. Polyester Staple Fiber: Multiple short fibers are twisted in the axial direction.
7. Polyester slub yarn: The filaments and low elastic yarns are twisted, and the elastic yarns are slow.
8, high elasticity: high flexibility, high fluffy.
9, polyester cationic yarn: can produce double color effect with common polyester yarn, easy to dye, bright color.