Question

a loose coil of silk fibres is known as

Answer 1

Silk throwing is the industrial process where silk that has been reeled into skeins, is cleaned, receives a twist and is wound onto bobbins. The yarn is now twisted together with threads, in a process known as doubling. Colloquially silk throwing can be used to refer to the whole process: reeling, throwing and doubling.[1] Silk had to be thrown to make it strong enough to be used as organizine for the warp in a loom, or tram for weft.

Answer 2

A loose coil of silk is also known as a Silk yarn or Silk textile or can simply be called silk skein. The silk yarn is twisted together with threads, in a process known as doubling. Silk has to be thrown to make it strong enough to be used as organize for the wrap or coil them in a warp. Silk is produced from silkworms.