My mother's wedding dress bodice (65 years old) was made of ivory satin and beautifully embroidered with sequins. Unfortunately the satin has brown patches. I would love to reuse it for my daughter. Do you think I could dye it? How does satin and sequins take dye?
If you are certain you want to try dye your dress, then definitely go to a professional. There are many types of dyes. For example, a protein fiber like silk requires a totally different dye than a cellulosic fiber like cotton.
I would never risk using a multipurpose home dye for your dress. I dye fabrics regularly in my handmade business and don't ever use the multipurpose stuff.