Name: Discovery of Silk
Uploaded: 2019-07-19
Duration: 4 min 52 s
Description: Silk is the queen of fabrics. It routes from China. Silk is considered a luxury fabric. Let us learn all about this fabric it in this video!

Question

How is wool obtained from fibres? Explain.

Accepted Answer

For obtaining wool, sheep are reared. The wool used for knitting sweaters or weaving shawls is obtained in a stepwise long process.

Step 1 -The fleece of the sheep, along with a thin layer of skin, is removed from its body. This process is called shearing. Usually, hair is removed during the hot weather. This enables sheep to survive without their protective coat of hair. The hair provides woollen fibres. Shearing is similar to how you get a haircut. It does not hurt the sheep because the uppermost layer of the skin is dead. Also, the hair grows again. Woollen fibres obtained from this hair are then processed to obtain woollen yarn.

Step 2 - The sheared skin with hair is washed thoroughly in tanks to remove grease, dust and dirt this is called scouring.

Step 3 - After scouring, sorting is done. The hairy skin is sent to a factory where the hair of different textures is sorted.

Step 4 - The small-fluffy fibres, called burrs, are picked out from the hair. These are the same burrs which sometimes appear on your sweaters. The fibres are scoured again and dried. This wool is ready now to be drawn into fibres.

Step 5 - The fibres are dyed in various colour.

Step 6 -The fibres are straightened, combed and rolled into yarn. The longer fibres are made into wool for sweaters and the shorter fibres are spun and woven into woollen cloth. This process is called rolling.

How is wool obtained from fibres? Explain.

Important Questions on Fibre to Fabric : Animal Fibre

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