Hi there

it looks like the problem is that your going straight from taking tape off to washing, what you want to do is actually remove the residue left by the tape with a solvent like (de-solv-it) or (C-22) which will get rid of that gunk. You use a cotton ball and dip in solvent or spray solvent on the system where the tape was let it sit for a minute or two then wipe clean.

you would then proceed to clean the system. I also recommend using a leave in conditioner on the system even after washing (one that contains vitamin B5) this will keep it nice and lively.

good luck