That's why quality hand dyed fabric is so expensive. At a workshop to dye fabric some wouldn't buy the ready for dye cotton fabric and used white muslin or other white fabric they had. The difference was very obvious. The right fabric took the dye better and looked fantastic. The other fabrics looked crappy next to it. I discovered I wouldn't save money dying my own if buying the right fabric but the benefit was to get the exact colors I wanted and the fun of doing it.