People who love wearing white shoes often have the same annoyance - white shoes are difficult to keep clean. After finally washing them white and letting them dry in the sun, the shoes surprisingly turn yellow. What's going on? Why do white sneakers turn yellow when washed?
Reasons why white sneakers turn yellow after washing
Generally, when we use detergent to wash our shoes, they become white. However, some laundry detergent or soap residue remains on the shoes and is difficult to completely clean. Under the sunlight, these alkaline substances can generate yellow substances. We often use tissue paper to wrap the shoes to block direct sunlight, isolate alkaline substances, prevent chemical reactions with light, and absorb the moisture containing detergent residues.
Tissue Paper Wrapping Method
After wetting the shoes with warm water, add white vinegar to warm water. Use a neutral detergent and a soft brush to scrub the shoes. After washing, soak the shoes in clean water for a period of time. Finally, wrap the shoes with tissue paper and let them dry in a ventilated place.
Blue Ink Soaking Method
After cleaning the shoes, prepare a basin of clean water and add 4-5 drops of blue ink. Stir well and place the freshly washed shoes in the solution. Soak for 10 minutes, then take them out and let them dry. The substances in the blue ink can neutralize certain substances in the detergent.
Beer Soaking Method
After scrubbing the white shoes with soap or laundry detergent, soak the clean shoes in beer for 3 minutes. After taking the shoes out of the beer, cover the shoe surface with tissue paper and let them dry.
White Toothpaste Brushing Method
First, use transparent soap and a soft brush to brush the shoes. Rinse with clean water. Then, brush the shoes with white toothpaste. Rinse with clean water again. After cleaning, wrap the shoes with white tissue paper and let them dry in a ventilated place.
White Paint Brushing Method
First, wash the shoes with whitening soap. Dilute the white water paint with water to a suitable consistency. Use a toothbrush to apply the watercolor to the shoes. Let the shoes dry in a ventilated place.
