Question

class 7 fiber to fabric Q Ahow is silk thread loosen from a cocoon
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Answer 1

Explanation:

If the moths were allowed to emerge from the cocoons, they would make holes in the silk thread. The silkworm farmers kill the pupas inside the cocoons by baking them in a hot oven. Then they soak the cocoons in boiling water to loosen the threads.

Answer 2

Answer:

The cocoons are collected and put into very hot water or exposed to hot air or to the scorching heat of the sun. This kills the silkworm and loosens the silk fibre. The silk fibres are then taken out and unwound from the cocoon. This process is called reeling.

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