Toothpaste is also a good way to remove stains. Dip a little toothpaste with a soft brush, gently brush off the stains on the bag, and then wipe off the excess toothpaste with a clean wet rag. When the stain is removed, the bag will look brand-new. You can apply a little leather care oil to make the front of the bag bright as new. Canvas bags can also be washed and colored in the same way, but it is not suitable to use bag care oil.
The fading of the leather bag surface can be cleaned by the above methods, and then some professional repair cream, shoe polish, environmental protection color cream, color fixing agent and so on can be applied.
The wrapping oil in the wrapping tape and other parts falls off, which will also cause the bag to fade. Friends can buy corresponding edge oil or professional decorative paint. First, apply a layer on the part where the edge oil falls off. When it's dry, apply another coat. When it is dry, apply another layer until it is as thick as the original edge oil. The final effect will be as good as new.