Combination Of Shoe Sole Raw Materials

The sole or shoe manufacturer must determine what kind of performance the product should meet, and what standards should be met, and also choose materials to manufacture: Rubber (RU), thermoplastic elastomer (TR), polyurethane (PU) or thermoplastic polyurethane (TPU).

As an integral part of shoe making, the upper shoe must be closely cooperated with the sole material. Therefore, the manufacturer should make the right choice for the upper material.

There are also design and performance, all these parts must be selected properly to ensure the final product has good quality.

The requirements for soles include light weight, low friction, strong grip, even leather stability, large temperature range, resistance to chemicals and oils, etc.

Generally speaking, the market demand for shoes is usually a combination of several items mentioned above.

All kinds of shoes have important and basic common characteristics, such as walking comfort and foot protection.

Ironically, nowadays, these basic characteristics of shoes are gradually replaced by fashion. More and more buyers see fashion as the most important factor in buying shoes.

For this purpose, the best form of material combination at present is to use rubber (artificial rubber) to make the sole and use polyurethane to make the middle sole.

The manufacturing process of the sole and the sole of the sole can be carried out step by step. Finally, the adhesive is used to bond them together. In most cases, pretreatment is required, such as halogenation and / or polishing of the rubber surface.

Another way of bonding is to use the automatic adhesive spray process between the two materials, and use the chemical bonding function of rubber and the adhesion function of PU to achieve the purpose of bonding.

At the outset, special polyurethane materials must be selected. For the interlayer of shoes, the foamed polyurethane must be selected for comfort consideration.

Polyurethane soles must have two tasks: first, we must feel comfortable, and the sole is light. Second, it is also a very important point, that is, safety problems, such as skid resistance.

In fact, it is difficult to integrate these two functions. In most cases, only one of these functions can produce the correct performance.

The production of single density shoes is very simple and effective, but the products produced are still high-grade commercial shoes.

A very compact material can be used to make the outsole, making it more resistant to abrasion and giving good skid resistance and grease resistance.

The foam polyurethane system can be used to make the middle sole, so that the shoes will be more comfortable and even lighter.

After a certain reaction, the upper part of the bottom and the bottom of the outer part are molded by injection, and a simple shoe sample is successfully delivered through the gluing between the sole and the upper.

But in casual footwear, you can also find many interesting designs using polyurethane / polyurethane material combinations.

The density of compact outsole is mainly 0.9g/cm3, while the midsole density is mostly 0.45g/cm3.

In addition, it is often very difficult to glue thermoplastic polyurethane on upper, so thermoplastic polyurethane outsole is not used frequently.

The thin thermoplastic polyurethane outsole and blown thermoplastic polyurethane soles will become a new material combination in the future.

More or less, its principle has something in common with polyurethane / polyurethane production materials.

The hardness of thermoplastic polyurethane covers a large area. In the shoe making industry, the hardness of Shaw is from 55A to nearly 85A. As a matter of fact, its wear resistance and skid resistance are excellent. Thermoplastic polyurethane gives a good carving process on sole.

Blown thermoplastic polyurethane can now be perfused, which means manufacturers can skip the production of materials from thermoplastic polyurethane to thermoplastic polyurethane / thermoplastic polyurethane in the short term.

Thermoplastic polyurethane can be bagged and granulated when feeding.

It does not involve professional knowledge related to chemistry, and operators do not have to adjust a large number of parameters for different machines when operating machines.

Thermoplastic polyurethane / polyurethane has many advantages.

First, the shoe making process can be completed through a one-stop process.

In this process, thermoplastic polyurethane is used to make shoe sole, and polyurethane is used to make shoe sole.

What is most interesting about the direct molding process at the bottom is the combination of the shoe sole made of compact thermoplastic polyurethane and the low weight shoe sole with self reactive polyurethane foam.

The combination results in a composite sole with a very wear-resistant sole and a comfortable sole.

In this way, a process, three colors or functions can be realized.

The colored material is injected into the path of the mold framework by a pair of injection molding equipment, and the shoe sole area is filled up. The injection volume is determined by the user.

After hardening, the material is poured, thus forming an outsole.

Then injecting the sole of the shoe, that is, complete the production.

All operations are done on the same machine as an integral part of the whole process.

It can not be sold without being processed.

It not only saves processing, distribution and material steps, but also improves the quality and economy of products.

A process, many shoe sole characteristics, the DESMA process quickly utilizes the new product's uncertain properties. Now, it can not only distinguish the shoe sole category according to the color, but also distinguish it according to different hardness, function, intensity and characteristics.

The manufacturing process of the sole and the sole of the sole can be carried out step by step. Finally, the adhesive is used to bond them together. In most cases, pretreatment is required, such as halogenation and / or polishing of the rubber surface.

Another way of bonding is to use non-woven wool between the two materials, and use the mechanical adhesion function of the rubber and the adhesion function of the polyurethane to achieve the purpose of adhesion.