I think it was Procion dye. It's been probably ten years ago. It's mostly purple and pink that have transferred--splotches on the white part. It would be pretty if it was supposed to be there. I haven't heard of Carbona, but I'll go look for it. I was thinking of dyeing fabric again for a quilt I have in mind, but I don't know now. I remember having trouble making the water run clear.