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Refining The Structure Of Shoes

2010/10/9 15:13:00 319

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shoes

The composition is divided into two types: injection molding and cold bonding two main categories.

Injection molding, also known as machine shoes, is directly injected into PVC, TPR and other materials with the help of a rotary machine. The shoe sole is formed at once. There is also PU (chemical name polyurethane) injection molding (machine and mold are not the same as ordinary injection molding).

Advantages: because the machine is made, the output is large and the price is low.

Disadvantages: if there are many styles, it is more troublesome to change moulds, and the shoe is difficult to set, and it is not cold and sticky.

Cold sticky

It is also commonly said to be made by hand. Italy, Spain's famous brand shoes belong to this category.

Generally, cold and sticky pipeline processing (except for family workshops), cold soled soles are usually provided by factories specially responsible for shoe soles. If they do not have the sole mold, they need another mold opening. The general sole factory 1W has more than two free mold opening.

The method is to help the noodles to be finalized with plastic last and glue together with the sole.

Advantages: fine workmanship, better shoes.

Disadvantages: small daily output, high price, generally suitable for medium and above factory production to form a scale.

Difference method: the most obvious feature of distinguishing between cold and injection shoes is the most obvious feature.

Sole

There is a line on the heel or edge of the injection shoes, because the shoes are left behind by the mold.

The cold soles of the shoe are glued to the surface and sole, so they can not be seen.

The components of shoes are mainly made up of the sides, lining (inside), the front and bottom, the front and back Baotou, the middle bottom (also called the inch bottom), the sole and so on.

Noodles: the material is generally LEATHER or artificial leather. The leather material is uneven. The best is of course the first layer of dermis. The texture is soft and the flexibility is good. Generally speaking, the shoes made of superior soft sheepskin are better.

There are many kinds of artificial leather, most of which are PU leather, with thickness of silk as unit, usually 80 silk, good can reach 140 silk. It is suitable for producing single layer (non compound lining), which is comfortable to wear, especially for Korean shoes.

In recent years, the popular PU leather has rubbing leather, leather, bubble pattern, Crazy Horse pattern, size lines, Napad, R8 stripe, 18 patterns, and so on.

Because the crazy horse leather has the texture like the real leather, and the effect is good, it is popular at present, but the price is very high.

Rubbing glue is the most classic leather. It has been popular for 10 years. Now there are many kinds of rubbing, and the effect is different. The color is deep and shallow, and it has a great relationship with the wax used. The price is moderate, but the work is difficult.

Now also has the simulation cowhide leather, the thickness achieves 200 silk above, the price is extremely high.

Lining and blanching bottom: materials are generally genuine leather, PU, PVC and so on. The skin of the leather is generally fitted with the inner leather of the leather, which is comfortable to wear and has good heat dissipation, and is not easy to produce "athlete's feet".

The average PU is much better than PVC, but the price is more expensive.

Soles will be an important part of shoes. They will have PU bottom, TPR bottom, PVC bottom, MD bottom, and combination bottom.

The advantages of the PU bottom are light weight, soft texture and good handle.

Customers in the Middle East and Europe all like the soles made of PU materials, but they are expensive. (recently, the price of PU has increased dramatically, and the cost has been greatly increased. However, the price of shoes has not risen, making many factories difficult). Nowadays, with polyurethane injection (PU INJECTION), it is also popular because of the large output and low cost.

The sole weight of TPR is moderate, and has a certain softness, but the price is cheaper than PU, and there is no peculiar smell.

The sole price of PVC is the cheapest, which is usually directly injected in the factory, but the cold soles are also useful for PVC materials. The quality of the soles can be hard and soft by adjusting the preform, but the PVC sole has a little peculiar smell, because it is a plastic material. If the oil is mixed with plastic, the flavor will be very weak. But if you use the oil back, it will be very pungent and uncomfortable. In fact, it depends entirely on the credibility of the factory.

Other parts, such as the sole, are only on the middle of the sole and the side. The material is single.

Baotou is actually a layer of cardboard, in millimeters, the quality of Baotou produced in Taiwan is better, and 1.7mm's Baotou is already very good.

It is mainly used in the shoe head and heel to make the leather shoes look sharp and clear, and play the role of strengthening the shoe type.