Polyester means the bonding of various esters within the fibers. The reaction of alcohol with carboxylic acid results in the formation of esters.Polyester also refers to the various polymers in which the backbones are formed by the “esterification condensation of polyfunctional alcohols and acids.” Polyester can also be classified as saturated and unsaturated polyesters.

Saturated polyesters refer to that family of polyesters in which the polyester backbones are saturated. They are not as reactive as unsaturated polyesters. They are composed of low molecular weight liquids used as plasticizers and as reagents in the formation of high molecular weight linear thermoplastics and urethane polymers such as polyethylene terephthalate (Dacron and Mylar). Typical reagents for saturated polyesters are a glycol and an acid or anhydride.

Unsaturated polyesters refer to that family of polyesters in which the main chain consists of alkylated thermosetting resins, characterized by vinyl unsaturation. They are mainly used in reinforced plastics. These are the most used and economic family of resins.

Characteristics of polyester

Polyester fabrics and fibers are extremely strong. Polyester is highly durable: resistant to most chemicals, stretching and shrinking, wrinkle resistant, mildew resistant, and abrasion resistant.

Polyester is hydrophobic in nature and quick drying. It can be used for insulation by making hollow fibers.

Polyester retains its shape and is therefore good for making outdoor clothing for harsh climates. Washes and dries easily.

uses of polyester

Due to its strength and toughness, polyester is used to make ropes in industries. PET bottles are today one of the most popular uses of polyester.

The most popular and one of the earliest uses of polyester was to make polyester suits.

Caring for polyester clothing is very easy and very time efficient.

Polyester clothing can be machine washed and dried. The addition of a fabric softener usually helps. Dry the fabric at low temperatures to get the most use out of clothes.

Polyester can be dry cleaned without hassle.

Having learned a bit about polyester and how popular it has become, one could never imagine the history of polyester to be so illustrious. The manufacturing process also deserves a more detailed description. The renaissance and success of polyester is certainly something that is here to stay.