Can I use old folded interfacing?
I've come into some old interfacing. There's no writing on it so I can't tell exactly what type it is. There is another smaller batch labeled "pellon featherweight". The folded batch is a bit stiffer but not too much.
It's been folded up for a while so it has pretty good creases in it. Can this stuff be ironed? Can I (or should I) wash it?
Thanks!!