Polyester

Following its introduction to the United States in 1951, polyester quickly became the country's fastest-growing fiber. __**Production of Polyester**__ Polyester is produced by reacting dicrboxylic acid with dihydric alcohol. The fibers are melt-spun by a process very similar to the one used to make nylon. The polyester fibers are hot drawn to orient the molecules and improve strength, elongation, and stress/strain properties. __**Polyester properties**__ Polyester is also very easy to adapt and change, depending on the end use. The cross section can be changed easily for different aesthetic and comfort properties. It is easily blended with other fibers, such as cotton, to improve hand and durability for an ideal garment.
 * Polyester** was invented and developed in England, and it was first manufactured by Imperial Chemical Industries in England as a "terlene" in 1950.Polyster was first introdced to the United States in 1951 by DuPont. The outstanding wet and dry resilency of polyester and its excellent dimensional stability after heat setting made it an instant favorite. Polyester is the most widely used synthetic fiber, and is the number one textile fiber in the world through it's versatile filament form and it's widely used staple form that can easily be mixed with other fibers to create a comfortable yet strong blend.
 * Durability-** High Tenacity; good elogation; excellent abrasion resistance
 * Comfort-** poor, and characterized by low absorbency, moderate thermal retention, and static prone
 * Care**- easy care; quick drying; resists most chemicals, and polyester apparel can be machine washed
 * Appearance retention**- very high with good resiliency, dimensional stability, and elastic recovery. It can be heat set, and resists wrinkling

__**End uses**__
 * Apparel
 * interior textiles
 * Industrial
 * high-tech sportswear
 * fiberfill- sleeping bags,mattresses, pillow cushions, Tire cords etc.

polyethelene is the most common of polyesters and is most commonly used in plastics such as bottles, dacron fabrics, and carpet.
 * Polye****sters** are copolymers produced by the condensation reaction of a di-alcohol and a dicarboxylic acid

Process
Polyester is manufactured by one of several methods. The one used depends on the form the finished polyester will take. The four basic forms are filament, staple, tow, and fiberfill. In the filament form, each individual strand of polyester fiber is continuous in length, producing smooth-surfaced fabrics. In staple form, filaments are cut to short, predetermined lengths. In this form polyester is easier to blend with other fibers. Tow is a form in which continuous filaments are drawn loosely together. Fiberfill is the voluminous form used in the manufacture of quilts, pillows, and outerwear. The two forms used most frequently are filament and staple. They are thermoplastic fibers which can change shape with heat and cooling effects. It has low water absorbancy and is used in several types of clothings as well as industrial products. Made from di-alcohol and dicarboxylic acid to form the fiber of Polyester

T-shirts are commonly made of polyester or at lease partly made.