Question

Why are the silk fibre lustrous? why are the harvested silk coocons boiled? Give two reasons ​

Answer 1

Answer:

When the silkworms are still in their cocoons they are boiled out so that they would die inside. This process is done before the silkworms come out of the cocoons so as to bring out the best silk. After the silkworm dies it becomes easier to unwrap the silk threads.

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Answer 2

Answer:

1)The shimmering appearance of silk is due to the triangular prism-like structure of the silk fibre, which allows silk cloth to refract incoming light at different angles, thus producing different colors.

2)When the silkworms are still in their cocoons they are boiled out so that they would die inside. This process is done before the silkworms come out of the cocoons so as to bring out the best silk. After the silkworm dies it becomes easier to unwrap the silk threads.

Explanation:

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