Hi state-line
OK, here's the answer!
The thing is actually, that only thinning a solution can "rinse" it out. Will say that rinsing isn't anything but an endless thinning of a solution, in this case detergent (= tensides/surfactants) in water called wash-water or suds.
Now we have different kinds of tensides: non-ionic, an-ionic, kat-ionic and amphotere surfactants.
Non-ionic surfactants are more or less a kind of a emulsifying stuff and is completely non-sensitive to water hardness and acids like vinegar.
An-ionic surfactants, like e.g. soap, are able to dilute big loads of fatty dirt but are very sensitive towards water hardness.
Amphotere surfactants are very mild and good for baby shampoos and detergents for woollens and silk or downs and also are not so sensitive to water hardness as an-ionic surfactants are.
Kat-ionic surfactants do not clean but cover a surface with a film and are used for conditioners of all kind. They do not foam nor do they dilute dirt or fatty soil, and as kat- (= plus) is opposite of an- (= minus) they block the counterpart.
Foaming an-ionic surfactants will collapse (as well as amphotere and non-ionic ones) and washing seems to be rinsed well, but truely it is just the same as if you put vinegar into a solution of soap; they "kill" eachother, but actually it does not take the soap out of the water.
What you see in your wash-water even after having added vinegar to it is just the part of the tensides which can withstand the acidity, namely the non-ionic surfactants.
So, it shows you that the tensidess are still there even if some of them are blocked by acidity (vinegar versus an-ionic surfactants) or, in case of the use of conditioners, because of the kat-ionic surfactants in them.
Finally one can say the only way to get rid of tensides/surfactants is....
RINSING! RINSING! RINSING! (and spinning in between of course)
Ralf