< p > > a target= "_blank" href= "//m.pmae.cn/" > strong > shoes < /strong > /a > son, as an indispensable commodity in our daily life, the structure of its bottom is quite complex and the material is also very diverse.

The sole can include the sole, the middle sole and the heel and all the materials forming the bottom.

In a narrow sense, only the outsole, the general characteristics of sole materials should be wearable, water resistant, oil resistant, heat resistant, pressure resistant, impact resistant, elastic, easy to fit foot type, not easy to change after setting, heat preservation, easy to absorb moisture and so on. At the same time, it must cooperate with the middle sole, and have various functions such as braking, sliding and easy stopping when walking and changing feet.

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< p > the development of soles < a target= "_blank" href= "//m.pmae.cn/" > strong > material > /strong > /a > has been a dramatic process in the past 70 years.

In 1930s, sole materials consisted of leather, wrinkles, thin rubber sheets and woodblock.

We can not regard wood as a regular material for shoemaking, although there are wooden shoes. The interesting thing is that wooden bottom shoes make people reconsider the World War II era of lack of common materials.

In 40s, vulcanized rubber was produced, and post-war synthetic materials such as styrene butadiene rubber and resin rubber began to develop.

Resin rubber is a very thin sheet. It is still popular to make court shoes.

Polyurethane and thermoplastic materials such as PVC were followed in 60s.

Thermoplastic elastomer and thermoplastic polyurethane were put into use in 70s.

In 80s, EVA was added.

Vulcanized rubber was produced in 90s.

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< p > the first breakthrough of the development of sole material is POE- polyester elastomer.

Compared with leather, natural rubber is still a major feature of sole material even though it is of high quality.

The most interesting thing is that rubber and PVC, which are the first to be accepted by people, will continue to dominate the market and will continue to maintain this state for some time to come.

This is because they have wide acceptability. Compared with other materials, they have the advantage of price, and rubber and PVC have been constantly developing to meet the modern needs such as portability and larger design space.

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< p > the material of shoe soles is dazzling. Now I choose to focus on it and introduce it to you.

Rubber synthetic bottom is referred to as imitation leather, which is a kind of high elastic material. It is light and comfortable when wearing. It has no noise, no slip and wear resistance. Rubber base is added with 10% to 30% high styrene. This sole has good elasticity and high hardness and rigidity, and its properties are very similar to natural leather.

The material is light yellow and plucent sole. It has beautiful appearance and good elasticity and abrasion resistance. It is comfortable to wear.

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< p > the bottom of the beef tendon can be made of rubber or plastic. It can also be made of thermoplastic elastomer (TPR).

Today, all kinds of rubber soles together make up about half of all the sole shoes in the world.

All types of shoes produced by vulcanized rubber, especially lighter ones, are proved to be multi-functional and acceptability, occupying 50% of the total rubber.

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< p > Pu is better in terms of elasticity and wearing comfort and abrasion resistance.

The leather a target= "_blank" href= "//m.pmae.cn/" > strong > leather < /strong > /a > sole is a sole that can automatically breathe and drive the feet to breathe, which can release the sweat absorbed automatically and keep the feet dry.

Its main feature is better thermal insulation to ensure proper temperature of feet in shoes. Light weight, waterproof and release when shoes are no longer wet, ensure shoes in a comfortable state; unique three-dimensional fiber structure, soles do not break at 180 degree bending.

It can quickly adapt to the foot shape, effectively support the impact of the ground, and protect feet more effectively than other materials and shoes with the same thickness.

Learning the characteristics and knowledge of these soles, I believe you will be more handy when choosing shoes later.

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