Plate edge of the shoes and sneakers shoes easy to turn yellow because the chemical composition of detergent residues and residue of little rust in water, and cleaning after direct exposure to the Sun.
Solution is not to use detergent to brush shoes ~ ~ instead of other decontamination supplies regular detergents can be used , is used to brush the dishes or to go to the supermarket a punch collar stain remover ~ quite easy to use and really does not leave yellow, wash and clean, the price is not expensive.
Specific steps are:
1 shoe gets wet with warm water, and won't for a long time ~ is soaked with water, may put a little bit of vinegar
2 I top of decontamination supplies go to shoe with a soft hair brush
3 try to spin 4 in order to prevent the event, and then covered with toilet paper
And then in a long time when you're not wearing shoes, after cleaned, preferably with storage bag. Reduction-oxidation