As a person with many tattoos, 16 at the moment, I have never had issues removing the drainage from a tattoo from my sheets. I am pretty careful to keep it covered but accidents happen. This was just rude, in my opinion. I would pretreat, of course. I use Resolve and it has gotten everything out, even an old oily stain in a dark sheet that I missed and dried. That stain is a mixture of tattoo ink, some blood and plasma. Good Luck! It really shouldn’t be all the difficult.