I have some old kimono. I used woolite and they came out just fine. I am planning a quilt too. I got the lightest weight fusible interfacing I could find, but haven't started yet. I have sewn silk garments in the past. Many silk fabrics will show pin holes, so you can only pin in the seam allowances. Test the iron temp on a scrap. You can get the entire piece of fabric wet and it will be just fine, but with some silks, drops of water will spot, same with steam so again, test first.