An Overview of Polyester Fiber
This organic synthetic fiber is formed by the polycondensation of a diacid (terephtalat acid) and a dialcohol (glycol-ethylene). The used process to obtain this polymer is the melt spinning with 400% heat stretching.
Physical properties of Polyester Fibers:
- Thickness : 1.2D, 1.5D , 2.0D
- Color : white
- Length : Variable cut lengths
- Density : 1.39 g/cc
- Tenacity : high, 40 to 80 cN/tex
- Moisture regain : 0.4 % (at 65% R.H and 20°C)
- Elongation : high, 15 to 45%
- Flame reaction : melts, shrinks, black fumes
- Melting point : 260°C
Characteristics of Polyester Fibers:
- Good strength
- Low absorbency
- Resistant to stretching and shrinking
- Resistant to most chemicals
- Easy to wash – Quick-drying
- Crisp and resilient when wet or dry
- Wrinkle and abrasion resistant
- Retains heat-set pleats and creases
End Uses of Polyester Fibers:
- Clothing: blouses, shirts, children’s wear, dresses, neck ties, lining, lingerie and underwear, permanent press garments, slacks, suits.
- Home furnishings: carpets, curtains, bed sheets and pillow covers.
- Technical textiles: floor coverings, V-belts, ropes and nets, tire cord .
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