Rod wrote in
. 4:

Sounds a bit like the type of glass material that used to be used as
curtains. Can't remember why that disappeared - health & safety?
unwashability? ugliness?

Bad form following up one's own post - apologies. But I think that our
antipodean friends may provide a fuller answer:

http://www.swinson.co.nz/glass_tex.htm

--
Rod