I think it may be another name for rayon. Others may know.

It is rayon, both names are used for the same product.

thanks :)

We learn something every day. :-)

Yes, it's rayon. I'm thinking "Viscose" is a brand name of rayon, like DuPont's "Antron" was a trade name of one of their nylons. Rayon is a natural product, by the way, not a man-made one. Look up in Wickipedia, and get some coffee, that darn Wickipedia can be so interesting you'll get lost there for hours! Hugs, Marji