Acrylic is a type of synthetic fibre obtained from the polymerisation of a chemical called acrylonitrile. Acrylic is cheaper than natural wool and can be dyed in various colour.

Nylon is a synthetic fibre made by man without using any natural raw material. It comprises repeating units of a chemical called amide. Nylon is a thermoplastic polymer, that means, which can be melted by heating.

Polyester is a synthetic fibre and it is prepared using the polymerisation of ester monomer. Polyester is often used in outerwear because of its high tenacity and durability.

Polythene is a tough and durable plastic made by the polymerisation of ethene. Polythene is used in making plastic bags, waterproof plastic sheets, bottles, buckets, etc.