One of my most favorite fabrics is silk organza. I dye, rinse and hang to dry. This helps to retain the crispness of the organza. Drying in the dryer creates lots of loose threads and softens the texture. I'm using up the last bit of my LIQUID fiber reactive dyes by Createx.
They stopped making them a few years ago. I love not working with powers and will miss them. I use the silk for my fiber constructions and collage. I often add thermal fax silkscreens using my own photography.