Abstract: Why do old leather shoes shine brighter and brighter? What is the brightness of leather shoes related to? Today, I conducted a study on this issue and found out the reason why shoes are getting brighter and brighter. Life was once full of knowledge.

Today, my mother and I were polishing shoes at home, and suddenly I thought of a question: Why do shoes shine brighter and brighter? I asked my mother, and she asked me to find the answer myself. So I decided to study the reasons why leather shoes are getting brighter and brighter with my mother.

I found two pairs of old and new leather shoes with the same size for comparative observation. I first touched the uppers of two pairs of leather shoes and found that the surface of the new shoes was much smoother than the old ones. Old leather shoes are coated with shoe polish. After careful polishing, it shines a lot, but it is still not as good as new leather shoes. Is there a relationship between the brightness of leather shoes and the smoothness of uppers?

I brought another pair of old leather shoes that were not polished, and they looked uneven under the magnifying glass. Then, I carefully wiped one shoe with shoe polish, and the other shoe without shoe polish was used as a blank control. I found that the surface of the first leather shoe became much smoother after polishing, and it was brighter than the other one in the sun. Why is there such a big difference between them? After searching online, I learned that the surface of leather shoes is not absolutely smooth. If it is an old leather shoe, its surface is of course more uneven and can't be reflected in a certain direction, so it looks dull. There are some small particles in shoe polish, which can just be filled into the pit of leather shoes when shining shoes. If you wipe it with a cloth again, the shoe polish will be more uniform, the surface of leather shoes will be smoother and smoother, and the reflective ability will be strengthened.

I finally know why shoes are getting brighter and brighter. There are so many question marks in life! Source network