1. Natural fibres : The fibres which are obtained from plants and animals are called natural fibres.
Examples of natural fibres:
(i) Fibres obtained from plants : Cottons, Jute etc.
(ii) Fibres obtained from animals : Wool and silk.
2. Synthetic Fibres : Nylon, polyesters, Acrilyc etc.
Obtaining Wool: Wool is obtained from the fleece (hair) of sheep or yak.
Obtaining Silk : Silk fibres come from cocoons of the silk moth.
Animals by which obtain wool : Wool comes from sheep, goat, yak and some other animals.
The hairy skin of the sheep has two types of fibres that form its fleece:
(i) the coarse beard hair, and
(ii) the fine soft under-hair close to the skin.
Selective breeding:
The process of selecting parents for obtaining special characters in their offspring, such a soft under hair in the sheep, is ‘termed selective’.
- sheep wool and Yak wool is common in Tibet and Ladakh.
- Angora wool is obtained from angora goats, Found in hilly regions such as Jammu and Kashmir.
- The fur (hair) on the body of camels is also used as wool. Llama and Alpaca, found in South America, also yield wool.
Pashmina shawls : Wool is also obtained from goat hair. The under fur of Kashmiri goat is soft. It is woven into fine shawls called Pashmina shawls.
Name of Animals which yield wool :
(i) Angora goat
(ii) Goat
(iii) Sheep
(iv) Camel
(v) yak
(vi) Llama
(vii) Alpaca