Question

why is the weight of silk reduced on soaking the raw silk fibres in soapy water?

Answer 1

As the sericin protects the silk fiber during processing, this is often left in until the yarn or even woven fabric stage. Raw silk is silk that still contains sericin. Once this is washed out (in soap and boiling water), the fabric is left soft, lustrous, and up to 30% lighter.

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Answer 2

Explanation:

Why do we not wait for the silk moth to hatch and ... -

When the silk worms become an adult moth , during the process when the moth comes out of the cocoon, it releases a spit which dissolves the silk in the cocoon so that it can come out thereby destroying the silk itself. Hence the farmers cannot wait for the cocoon to hatch.

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