gius, i made this thread in order to find out if there is a way to make a pleated permanent without an industrial machine. given that you can dye a fabric at home with natural vegetables and no chemical product, there could be something natural like potatoe juice or something like that that would make a pleat permanent. if you make that skirt, you would have to iron it after you washed it to keep the pleats in place.
that system you said, with the silk's own natural gum would be a case of what i was searching for.

nevertheless, natural silk is so expensive, i'm sure it's hard to find. so if there are other ways, i'm listening