Polyethylene Terephthalate (abbreviated PET), is the most common thermoplastic polymer resin of the polyester family and is used in fibres for clothing, containers for liquids and foods, thermoforming for manufacturing, and in combination with glass fibre for engineering resins. The majority of the world's PET production is for synthetic fibres (over 60%), with bottle production accounting for about 30% of global demand. In the context of textile applications, PET is referred to by its common name, polyester, whereas the acronym PET is generally used in relation to packaging. Polyester makes up about 18% of world polymer production and is the fourth- most-produced polymer after PE, PP and PVC. Fiber grade PET and bottle grade PET are the two dominant grades in the global market.
Fiber grade PET: was primarily used in textile fiber and yarn applications.
Bottle grade PET: Packaging industry is one of the fast growing areas for consuming PET resins. It can be applied for mineral water, soft drinks and other general foodstuff.