how is Silk obtained from a cocoon
Answers
From Cotton to Silk :
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Eggs of silk moth are stored carefully on strips of cloth or paper and sold to the silk moth farmers.
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The eggs are kept by the farmers under proper conditions till the caterpillars come out from the cocoons.
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The silk moth caterpillars are kept then kept in bamboo trays and fed on fresh mulberry leaves.
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When the caterpillars stops eating, they shifted to bamboo chambers provided with racks, twigs. Here, they spin cocoons.
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At the end of pupal stage, the moth cuts the cocoon and flies out.
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The cocoons are then stored out according to their colours, size, shape, and texture.
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The stored cocoons are collected and immersed in boiling water to kill the insect inside them.
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The cocoons are given a series of hot & cold immersions, to make them soft.
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The silk filaments are separated from the cocoons. This process is called reeling of the silk . The resulting fibre is known as raw silk, which can be dyed into various colours.
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The silk fibres are then spun to get silk threads.