Hi. I have custom made antiques satin curtains. They are peach. I want to dye them more of a neutral color like tan, beige. Can you please let me know if this kind of material can be dyed? Thank You Ginger

Ginger,
please read my article on Fabric Dyeing 101. This will give you the basic info you need. In a nutshell, it all depends on the fiber content of the fabric. Write back if you have more questions.
best,
Jennifer