Shoe Material Knowledge

I. Big bottom :

The 1. bottom material is simply natural rubber or artificial labor. synthetic rubber 。

(1) natural rubber: the advantage of natural rubber is that it is very soft, elastic and good, and can be used in all kinds of sports. However, the disadvantages are obvious. Indoor sports shoes are mostly made of natural rubber.

2. synthetic rubber is also divided into wear-resistant rubber, environment-friendly rubber, air rubber, sticky rubber, hard rubber and carbon rubber.

(1) wear resistant rubber: wear resistant and toughness of wear resistant rubber are very good, so they are very durable. This rubber material is generally used on the sole of tennis shoes.

(2) environment-friendly rubber: also known as recycled rubber, the rubber outsole contains up to 10% of the recycled rubber. The main purpose is to protect the environment.

(3) air rubber: Rubber contains air, which has a certain damping function, but it is not very wearable, and its use is not very extensive.

(4) sticky rubber: sticky rubber is characterized by good flexibility, and very skid resistant, generally used in indoor sports shoes.

(5) hard rubber: hard rubber is the most comprehensive rubber in the material of the rubber, which is tough, skid resistant and wearable. Most of the shoes and basketball shoes are made of rubber.

(6) carbon rubber: carbon is added to ordinary rubber materials to make the rubber more tough and wearable. Most of the rubber shoes are used in this kind of shoes, and the letters of the BRS will be left in the back of the running shoes to indicate the use of carbon rubber at the outsole.

3. glue sole: this kind of sole is not common. The raw material of this kind of bottom is industrial glue. The mixer is stirred by mixing machine, and then heated into mold by heating. Its characteristics are soft and very skid proof.

Two. Midsole:

1. now Gym shoes At the bottom, I don't think many people will know that PHYLON is the most common in the middle and the bottom of the EVA. In fact, the two midsole belong to the same attribute category (namely engineering plastics), but why is there a difference in calling? PHYLON originated in the United States, the earliest shoe bottom is called PHYLON, and there is no difference between EVA midsole and PHYLON middle bottom. Later, with the continuous development of footwear products, the brand name products of Taiwan and Korea are being systematized, and we have what we call EVA middle end. Next I will talk about the difference between EVA midsole and PHYLON bottom. {page_break}

Now the bottom of the shoe is used in the middle of the PHYLON. The biggest feature of PHYLON is light weight, good elasticity and good cushioning performance. PHYLON is called the two foaming. EVA midsole is also very light, but the cushioning performance and elasticity are far less than the PHYLON midsole, and the cost is much lower than that of PHYLON. The EVA midsole is called a foaming. The reason for their different attributes is that the PHYLON is the two time and the EVA is a foaming.

(1) one time foaming: when the material is injected into the mold and heated by high temperature, the sole of the shoe is called a foaming middle sole, that is, the middle sole of the EVA shoe.

(2) two times foaming: after the material is injected into the mold, the middle sole of the shoe is molded by the two high temperature heating. It is called the two foaming middle sole, which is what we often call the PHYLON middle sole. The hardness of PHYLON is also controlled by temperature. In the process of firing PHYLON, the higher the temperature, the greater the density of PHYLON and the harder it is. The smaller the temperature is, the lighter and softer the PHYLON will naturally burn. So the evaluation of the middle sole of the shoe can not be measured by the weight or the degree of hardness.

(3) burying the bottom of the cloth: the bottom of the cloth is also the middle sole of the PHYLON, but the shoe technology used by the designer in pursuit of the overall sense of design is the best example. The sole and sole of the shoe are made of the same cloth, making the combination of the shoe and the sole as a whole. It is also a highlight of the shoe making process. To achieve this process is to use the selected cloth to wrap the already formed PHYLON middle sole, and to burn it in the mold at high temperature will become the sole of the shoe that we see in LB1.

2.PU midsole: in addition to the PHYLON midsole and EVA midsole, PU midsole is also very common. The biggest advantage of PU is elasticity and toughness.

3. package midsole: now many sneakers are built with built-in bottom structure, also called the middle sole. Like the T-MAC series that you are familiar with, the Feng style series of NIKE belong to the bottom structure of the package. The bottom of the package consists of two parts, the outsole and the vamp, from the outside. But the structure is composed of three parts: the bottom, the middle sole and the upper part.

Three. Insole and integral soles:

1. insole: the inner bottom can also be a form of acid in the middle of the bag. Unlike the bottom of the package, the bottom structure is wrapped in the bottom of the shoe sole, for example, FORCE1, even the inner sole structure, rather than the rubber outsole as seen by the exterior. Actually, the inside sole of the rubber sole is covered with a shoe sole. This middle sole is also called the MD middle sole, belonging to a EVA foaming.

2. integral soles:

(1) the integral sole is the most commonly used EVA foam molding sole. The sole cost is low, and the skid resistance is poor. When the sole is stained with water, it is like wearing roller skates. The 3D soles of REEBOK are the best spokesmen for this EVA foam sole.

(3) PU soles: there are not many ADI and NIKE used soles, PU soles are low temperature molded soles. The bottom of PU is characterized by portability, but it is not suitable to touch water. After encountering water, it will react with chemicals and corrode layer by layer.

(4) pure rubber soles: pure rubber soles are mostly used for outdoor mountaineering shoes, or work shoes, electrician shoes. The whole sole is made of rubber. The advantages are abrasion resistance and skid resistance. The disadvantage is that the weight is too large. CAT shoes generally use this soles, also known as insulating soles.