Question

Name two natural fibres.

Answer 1

Hint: Fibers is thread like structure which is long, flexible and thin. They are made up by spun into yarns and then get ready into fibres. On the basis of origin the fibres are classified into natural fibres and synthetic fibres.

Complete answer:
Natural fibres are the fibres which are obtained naturally from plants, animals or mineral sources. For example: cotton, wool, silk, etc. now natural fibres can be subdivided into two parts on the basis of the sources:
(1) Animal fibres: These fibres are those which are obtained to us from animals. Examples:
>Wool: It is a natural fibre widely used in the textile industry. It is obtained from camels, sheep, and goats. It is able to trap a large amount of air. As air is the bad conductor of heat so the clothes made up of wool help us to protect from cold air in winter by wearing woolen clothes.
>Silk: Silk is also the fibre which is widely used in the textile industry. It is obtained from silkworm. The process by which the silk from the silkworm is reared is known as sericulture.
>Mohair: This the natural fibre that is crafted from the hair of angora goat.

(2) Plant fibres: These fibres are obtained naturally from plants. Examples:
>Seed fibre: It is obtained from the seed of different plants.
>Leaf fibre: It is obtained from the leaves of plants, such as pineapple leaf and banana leaf fibre.
>Bast fibre: these are obtained from the outer layer cells of the stem. Example jute fibre, flax fibre, kenaf fibre, etc. these fibres are widely used in fabric and packaging due to their durability.

Natural fibres are also used in the manufacture of medicines. The natural fibre cotton is an integral part of the textile industry. It is also used in insulation and noise absorbing.

Note: Natural fibres are known for their absorbing ability. They are used in textile industries for manufacturing of clothes. They are also used in the manufacture of composite materials. Paper can be manufactured by matting different layers of natural fibres into sheets.