Timeline of first commercial use of manufactured fibers
1905 rayon in the U.K.
1910 rayon in the U.S.
1918 acetate in the U.K. (called celanese)
1924 acetate in the U.S. (trademarked Celanese)
1953 acetate and rayon given separate groupings by the U.S. Federal Trade Commission
Late 50s Modal
See also: manufactured fibers, as well as each fiber’s resource entry.