Claim: Art silk is any synthetic fiber which resembles silk, but typically costs less to produce, the first successful artificial silks being developed in the 1890s of cellulose fiber and marketed as art silk or viscose.
Evidence: Artificial silk or art silk is any synthetic fiber which resembles silk, but typically costs less to produce. The first successful artificial silks were developed in the 1890s of cellulose fiber and marketed as art silk or viscose, a trade name for a specific manufacturer.