What causes travel shoes to turn yellow? How to remove yellow stain from shoes?

Why do shoes turn up with yellow stains after washing? Some people may think that it is because the soap liquid is not washed away. In fact, the soap liquid will only cause white marks on the shoes. This is due to the rubber part of the shoe itself. When there is a lot of water in the shoe, the water evaporates very quickly, and the water vapor evaporates from bottom to top, which brings the rubber component in the shoe to the surface of the shoe, and the water evaporates into the air, but The rubber component does not evaporate into the air, so it only stays on the surface of the shoe.

To fundamentally eliminate the causes of yellowing of shoes: First, try to use neutral detergent when brushing shoes. After washing and drying, you can use white paper (preferably white toilet paper) to clean the entire sneakers. Wrap it up so that when the shoes are dry, you will find that there are no yellow marks on the shoes, but there are many yellow marks on the toilet paper. In addition, if you wait until the shoes are very dirty before brushing them, you must use detergent to clean them. If you wipe them frequently with a soft cloth dipped in water, you can use less detergent. When washing, you can also use soap or washing powder to clean the shoes first, then soak the washed sneakers in beer for three minutes, and then take them to the balcony to dry in the shade.

If the shoes have turned yellow, you can wash them and apply lead powder on the market while the shoes are wet. However, bleaching solutions such as 84 are corrosive and should be used with caution. After someone brushes the shoes, they want them to dry quickly, so they will wring them out hard. Doing so can easily deform the shoes. In winter, some people put their shoes on the radiator to dry. This method is even more undesirable, because overheating of the radiator will cause the rubber of the shoes to age, and the shoes will easily open over time.