Synthetic fibres become more popular than natural fibres because they are cheaper than natural fibres. The raw materials for synthetic fibres are mainly petrochemicals such as coal. Hence, the manufacturing of synthetic fibres helps in the conservation of forests. Synthetic fibres are used in the manufacture of a variety of household articles such as ropes, buckets, furniture, containers, etc. to highly specialized uses in aircrafts, ships, space crafts, healthcare, etc.