Theory:

Apart from natural fibres, we also use artificial fibres such as synthetic fibres. Now let us discuss synthetic fibres.
The properties, structures, and chemical compositions of the fibres are designed according to the need and manufactured synthetically, known as Synthetic fibres.
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Nylon ropes
 
On the other hand, the fibres made from artificial sources or man-made sources is known as synthetic fibres. The raw material for synthetic fibres is petroleum or natural gas.

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Polymer compound

Synthetic fibres are made up of a chain of small units joined together. Each unit is nothing but a chemical substance. Many such units combine to form a single large unit called a Polymer.
The word polymer is taken from the Greek word 'Polusmeros'. In Greek, "Polus" means many, and "Meros" is a unit or part. Therefore, polymer refers to many continuous units combined as one.

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Cellulose

Polymers also exist in the natural—for example, cotton made of a polymer called cellulose. Cellulose itself is made up of a large number of glucose units.
 
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Synthetic fibres
 
Some common examples of synthetic fibres are polyester, acrylic and nylon. These fibres are cheap and produced in large quantities