View Cocoon Silk Pics. We've visited hoi an in dec 17 and went to cocoon silk. This is the most desirable stage for the silk producers.
The protein fiber of silk is composed mainly of fibroin and is produced by certain insect larvae to form cocoons.
5,500 silkworms are required to produce 1 kg (2.2 lbs.) of raw silk. The caterpillar covers itself with silk fibre completely and turns into a pupa, this covering is known as the 'cocoon'. Check out our silk cocoon selection for the very best in unique or custom, handmade pieces from our craft supplies & tools shops. Silk is a natural protein fiber, some forms of which can be woven into textiles.