rayon; artificial silk
Refers to the semi-synthetic fiber made from regenerated cellulose. Common in textile and clothing contexts.
This blouse is made of rayon.
人絹は絹に似た光沢がある。
Rayon has a luster similar to silk.
viscose rayon
Compound of 人 (じん, 'human, artificial') and 絹 (けん, 'silk'), literally 'artificial silk'. The term was coined in the early 20th century when rayon was first developed as a silk substitute.