The product of a silkworm's labour and, to me, one of the wonders of the natural world.
The silk fibre in a Bombyx mori cocoon is, for most of its length, a continuous double filament up to a mile long. The fibre decreases in thickness towards the middle of the cocoon and in the centre the fibres are broken and very fine. Where possible cocoons are reeled to produce reeled or filament silk. The waste from the reeling industry is used for producing spun silk yarns and used by textile artists. Cocoons that are suitable for reeling are not usually degummed. It is the cocoons from which the moth has emerged that are usually degummed either for the production of combed silk tops or for making into silk wadding or mawata.

Dye, spin or reel.
For ornament, 'paper' or sculpture.

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