My dd has a bunch of long sleeved plastic backed bibs with thin cotton towelling outer. The problem is they seem to grow little Black mildew patches on fabric that is impossible to shift- the closest thing I can think of is the mildew you get on plastic shower curtains. Any tips for getting it out that don't involve melting the plastic?
Think issue is if you rinse off fooD before you wash and leave it pre wash ( even for a few hours) these marks appear.
They are great bibs for catching stuff (Hence why I want a solution to this)!