there was (maybe still is) a spray product call spot lifter or ring remover that would lift the ring/ stain that would be left on some fabrics. I think it had to do with not all shirts were colorfast at the time, like comforts colors/
You would spray it and it would foam up and the bushed that off. I think. Been 20 years.
I would get it laundry supply places.
Not sure if thats what you're asking