Question

what is artificial silk?

Answer 1

Artificial silk or art silk is any synthetic fiber which resembles silk, but typically costs less to produce. Frequently, "artificial silk" is just a synonym for rayon. When made out of bamboo viscose it is also sometimes called bamboo silk. 

Answer 2

towards the end of the nineteenth century, scientists were successful in obtaining a fibre having properties similar to that silk. such a fibre was obtained by chemical treatment of wood pulp . this fibre was called rayon or artificial silk.