Question

what is the purpose of throwing in silk industry

Answer 1

Question has error it should be threshing not throwing
Threshing is done to segregate the clusters of silk in silk industry

Answer 2

Silk throwing is the industrial process wherein silk that has been reeled into skeins, is cleaned, gets a twist and is wound onto bobbins.

The yarn is presently twisted together with threads, in a process known as doubling.

Colloquially silk throwing can be utilized to allude to the whole process: reeling, throwing and doubling.

Silk had to be tossed to make it sufficiently able to be utilized as organizing for the warp in a linger, or tram for weft.