This is a nightmare, I rent and some orange lilies I was given have left big blotchy orange stains on my kitchen lino. I’ve tried bleach, stain remover and magic sponge. No change.
343000cookie-checkOrange Lily stain in kitchen Lino
Chemistry in the real world
You need to change the pH. Try Sugar Soap, than Ajax Spray n Wipe. One of those should do it. If they don’t get a liquid laundry detergent (any brand) on a rag and try that. One of them should work