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Theory:

The properties, structures, and chemical compositions of the fibres are designed according to the need and manufactured synthetically, known as synthetic fibres.
Some common examples of synthetic fibres are polyester, acrylic and nylon. These fibres are cheap and produced in large quantities.
 
Let us now see the characteristics of synthetic fibres such as polyester and acrylic, respectively.
Polyester:
Polyester is referred to as the workhorse fibre. The monomer used here is an ester.
 
The properties of polyester are that they are strong, resistant to chemicals, dries quickly, durable, resist stretching and shrinkage.
 
The disadvantage of this is they have low absorbency.

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Polyester fibre

They are used in making ropes, nets, jackets, raincoats. Terylene is a popular polyester used to make dresses like shirts, PET(Polyethylene terephthalate) bottles or jars in the kitchen.

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PET bottles

Fabrics sold such as poly cot, poly-wool, and terry cot are polyester. As the name suggests, they are produced by mixing two types of fibres.
 
Polycot fabric is made by combining polyester and cotton. Polywool fabric is made by combining polyester and wool.
 
Polyester
Acrylic:
Acrylic fibres are synthetic fibres made from acrylonitrile or vinyl cyanide. Acrylic fibres are also known as Artificial wool.
The advantage of acrylic fibres are: Lightweight, blended appearance, resist moths, oils and chemicals
 
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Acrylic yarn
 
The disadvantage of acrylic fibres: Low absorbency, heat-sensitive, and can be dissolved by acetone (nail polish remover, thinner).

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Acrylic fabric

Acrylic fibres are used to make winter clothes such as sweaters, shawls and blankets. Some of the characteristics of acrylic fibre are strong, wrinkle-resistant, comfort and warm.
 
Acrylic fibres
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