The diagrams illustrate specific stages in the life of a silkworm, and the process of production of silk fabric.
Overall, the life of a silkworm consists of four stages beginning with eggs laid on mulberry leaves and ending with mature moth. In addition, the process of producing silk cloth comprises of five steps, commencing with selecting cocoons and culminating in weaving silk fabric.
In terms of the life cycle of the silkworm, eggs are laid on the mulberry leaves by mature silkworm, then these eggs hatch on the mulberry leaves and turn into larvae over the ten-day period. After that, silkworm larvae eat the mulberry leaves. Subsequently, after four to six weeks, the larvae begin to create silk thread around themselves. Following this, full cocoons are produced after three to eight days. Next, the moths get out of the cocoon after the period of sixteen days. The cycle repeats as the moth lays eggs on leaves again.
Relating to the production of silk cloth, the cocoon experiences the selecting process before being boiled in water. Successively, the boiled cocoon is unwound to 300-900 meters. In the fourth step of this process, the strands of silk thread are twisted together to prepare for next stages. Afterward, the thread can either be dyed before being woven into silk cloth or be woven before being dyed.