Why are many places on the side of the white canvas shoes turning yellow after washing and putting t

The yellowing of white canvas shoes in some places after washing is caused by the accumulation of residue.

After washing, canvas shoes appear to be cleaned, but in fact, a small amount of dirt remains in the deep layers of canvas fibers, which is difficult to remove with ordinary washing methods. As the vamp dries (whether air-dried, sun-dried, or baked on a heated stove), dirt and residual detergent accumulate with chromatography to the final drying area. Therefore, it is often the place with frills that dries more slowly because it is thicker, and the yellow color that appears is darker.

The thin areas are shallow, and they are not even polluted by yellow at all.

For this reason, this problem can be dealt with in a targeted manner: take a few pieces of clean toilet paper and stick two or three layers of paper tightly on all the canvases of the upper after the shoe is washed, while it is wet. Due to the strong water absorption of the roll paper, the moisture in the canvas is carried to the roll paper by chromatography with residues.

When the shoes are dry, peel off the toilet paper and get white shoes without yellow marks.

Probably limescale... The next time you wrap it with toilet paper and expose it to the sun, there will be no more. Also, in order to prevent the little bit of rubber on the canvas toe from not yellowing, it is best to wash the shoes with dish soap.

White cloth shoes, it is best to use toilet paper to wrap the shoes after washing. Yellow is unwashed laundry detergent and other laundry products, and when wrapped, it is absorbed by the paper. It won't turn yellow, don't believe you try.

It's oxidized, you can put toilet paper on it after washing, or you can buy some shoe powder to wipe it off!

When dried on the heater, the moisture in the upper evaporates, forming a capillary effect, causing impurities that have not been rinsed clean to lift to the surface of the shoe, causing the upper to turn yellow.

Solution: Wrap white shoes with toilet paper, and after drying, because toilet paper replaces the upper, capillary phenomenon occurs on the paper, which will turn the toilet paper yellow, and the white shoes will turn white.

Another way is that after soaking in blue ink, the little white shoes will not turn yellow after drying.

Because most of the laundry detergent and soap contain alkaline substances, it is generally very difficult to remove them when rinsing with water, and some of them will be left on the shoes, and there will be a little rust residue in the water, and this alkaline substance will turn yellow when exposed to the sun under the liquid lead.

It is best to dry it in the sun after washing, and not let it dry in a humid climate. This will turn yellow.

Choose a sunny day, after washing, stick a absorbent paper towel on the upper of the shoe, put it in the sun and expose it to the sun, and when it dries, you will find that the paper towel spread on the shoe turns yellow and the shoe is white. White shoes are easy to get dirty, so be sure to stick a tissue when you dry them.

Re-wash, then dehydrate, or without dehydration, and cover it with a layer of toilet paper to dry.

Soak in laundry detergent, then wrap it in a white paper towel and freeze it in the refrigerator freezer for a few days.

After washing, just put a layer of toilet paper on top of your shoes.