Shoemaking Mainly Consists Of Two Categories: Injection Molding And Cold Bonding.

Injection molding is also made by machine. shoes After the surface is tied to the aluminum last, it is usually injected directly into the PVC, TPR and other materials by the rotary machine. Once the sole is formed, there is also PU (chemical name polyurethane) 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 is what we usually call hand made shoes. 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: distinguish between cold bonding and injection molding. shoes The most obvious feature is the sole. There are lines on the heels or edges 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. Besides, the shoes are made up of shoes, lining, lining, back and forth, Baotou, middle bottom (also called inch bottom), soles and so on.

Noodles: the material is generally made of genuine leather (LEATHER) or artificial leather. The material of the leather is uneven. The best is the leather of the first layer. The texture is soft and the flexibility is good. There are many kinds of artificial leather. The most leather I touch is PU leather. The thickness is made of silk. It is generally made of 80 silk. The good can reach 140 silk. It is suitable for producing a single layer of flour. Today's most popular PU leather has rubbing leather, leather, froth, crazy horse, size, Napa, 18 lines, and so on. Because the crazy horse leather has the texture like the real leather, and the effect is good, it is very popular now, 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 leather lining, 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 are an important part of shoes. They have PU bottom, TPR bottom, PVC bottom and combined bottom. The advantage of PU bottom is weight Light, 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 improved. However, the price of shoes has not risen, causing many factories to be embarrassed). Nowadays, with polyurethane injection (PU INJECTION), it is also very popular because of its large production capacity 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 cold sticky soles are also useful for PVC materials. The material can be preformed and adjusted to be hard and soft, but PVC Sole Many of them smell a bit different, because they are plastic materials. If the oil is mixed with plastic, the taste will be very weak. But if you use the oil, the smell will make people feel uncomfortable. In fact, it depends entirely on the reputation 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 toe and heel to make shoes look angular and play a role in strengthening shoes.