Polypropylene (PP) is a thermoplastic made from the combination of propylene monomers. It is used in a variety of applications to include packaging for consumer products, plastic parts for various industries including the automotive industry, kitchen ware and house ware products, and also textiles. The major end users of polypropylene are the packaging industry, which consumes about 30% of the total, followed by the electrical and equipment manufacturing, which uses about 13

source : Quartz (qz.com) Polyester has been a fixture in our closets since 1951. That’s when the first polyester suits, made from fabric created not by a textile mill but by the American chemical company DuPont, went on sale. It has come a long way since. Today, polyester is no longer the ugly, uncomfortable material of awful 1970s double-knit leisure suits, the kind that necessitated a marketing campaign to rehabilitate the fabric’s image. Nowadays, polyester is easy to miss