Question

What is constituent of polycot?
(A) Nylon and wool
(B) Polyester and cotton
(C) Nylon and cotton
(D) Polythene and cotton

Answer 1

Hint: In the above question, it is asked about the composition of polycot. Polycot fibre is used to prepare clothes which are cheap and durable. It is also used to make traffic jackets. It is a mixture of natural and synthetic fibre.

Complete step by step solution
As the name suggests, the word polycot can be dissociated into poly and cot which indicates that it is a mixture of polyester and cotton.
Polyester fabrics are sticky as the lost sweat cannot be evaporated from the fabric. In regard to durability, polyester is a more elastic fibre and therefore, it tends to be tear resistant. However, it does not tend to be as abrasion-resistant as cotton canvas. As polyester is a synthetic fibre, it does not depend upon climate so it is somehow cheaper.
100% cotton is a fully breathable fabric, which means that it can be cooler to wear in hot conditions. But as the thickness increases, the breathability decreases. 100% cotton tends to rip and wear out easily, depending on the weave. Cotton canvas is a very durable and abrasion-resistant fabric, but it is very thick and heavy.
Polycot is a mixture of 65% cotton and 35% polyester and hence, it has properties of both cotton and polyester. The ratio of polycot is not fixed. The ratio is never 50/50. Polycot is famous because it is stronger, fashionable, breathable and dries faster than 100% cotton. It does not stick as in the case of polyester.
Hence, we can conclude that polycot is a combination of polyester and cotton. And hence, option B is the correct option.

Note
We should note that polyesters are formed as a result of condensation of dicarboxylic acid and diols. Since, polycot is a blend of polyesters and cotton and hence, it is used to make canvas having bright and colourful designs. Polycot is not only used in fabric but also used as a softening agent for detergent powder. Rayon is made up of polycot and rayon. Its fabric is soft, stretchy and durable.