Orange On Clothes Stomach Acid I Got Microwave Popcorn Butter On My Shirt And On A Towel And It Won't Come Out !?

I got microwave popcorn butter on my shirt and on a towel and it won't come out !? - orange on clothes stomach acid

I wash my hands in hot water and Tide soap abundant, and there are patches of orange!
I thought it was just butter, but I think it is something more than the eye and the tongue in such matters.
I wonder if my stomach, intestines and the orange spot on the inside too!
Can in any case, how do I clean this product out of clothes?