This pleated lampshade has been repaired using charmeuse silk for the liner. The silk cover was in excellent condition, but the liner was shredding.
Pleated Silk Lampshade
Many people think their silk lampshade has a silk liner. The shade has a beautiful silk cover, but the liners seem to be acetone or a manufactured fabric. Acetone fabric is soft and looks like silk but does not have the durability of actual silk fabric. I believe quality silk fabric will stand the test of time.
Pleated Silk Lampshade with Silk Liner
I was researching acetone fabric and it says that nail polish will melt acetone fabric. The next shade liner I replace, I will do the nail polish test.
I restored a vintage shade that the cover fell apart but the silk liner was in mint condition.