Introduction To Leather Shoes Craft Knowledge

There are many ways to classify leather shoes.

They are divided into daily leather shoes, sports leather shoes, labor protection leather shoes and military leather shoes, and medical orthopedic leather shoes specially designed for abnormal feet.

According to the pattern, there are mainly ears, tongue, shallow mouth, boots and leather shoes. The boots are divided into high waist, half tube and high tube.

There are various sizes (shoe numbers) and fatness (fat and lean) for various styles to meet the needs of various foot types and consumers.

In ancient times, human beings wrapped their skins on their feet by hunting, so as to prevent the external environment from being violated.

The frescoes of the ancient Egyptian tombs in the 1450 B.C. reflected the scene of ancient hand-made leather sandals.

In ancient China, leather shoes were regarded as leather shoes, and the existing objects were made up of 2300 years ago by the Chu tomb in Changsha, Hunan. They were made of coarse leather.

The experience of hand-made leather shoes has been handed down from generation to generation, and gradually developed into specialized skills.

Since eighteenth Century, the production of leather shoes has been developing towards large workshops and continuous production.

Special machinery for leather shoes appeared in nineteenth Century.

In 1858, the US L.R. Black invented the sewing machine and the internal machine. After that, the G. McKay was improved. This method and machine have been used so far.

In 1864, sewing machines were mass-produced and used in leather shoes production.

The emergence of sewing machine in 1875 and the advent of the 1883 boom machine have made heavy manual sewing and bandage operations replaced by machines.

In the early twentieth Century, the seam shoes were basically mechanized, and the production efficiency was greatly improved, but the production technology changed little.

The adhesive sticky method, which appeared in the 1910, developed rapidly after the Second World War, thus realizing the assembly of leather shoes by prefabricated parts. This method has been widely adopted.

In 1935, Europe began to produce leather shoes by molding vulcanization.

In the early 60s, with the advent of injection molded leather shoes, a method was developed without using thread seams.

In 1987, China produced 309 million pairs of leather shoes, of which 58.9% were adhesive shoes, 34.1% were sewing shoes, 4.6% were molded molded leather shoes, and 2.4% were injection molded shoes.

The front part corresponds to the front part of the foot and the active part of the metatarsophalangeal joint. It is flexed, stretched, extruded and rubbed under the action of the foot. The heel part of the back is processed into a fixed shape similar to the heel. When walking and wearing leather shoes, the back band is also flexed and stretched. The front and rear sides are usually sutured on the sides of the arch of the arch.

The upper part of the shoe plays the role of wrapping up the foot and supporting the arch of the arch.

The general leather shoes are lined with lining to reinforce the upper and avoid wear, and absorb part of the sweat.

The outsole has direct contact with the ground, subjected to various functions such as bending, extrusion, friction and external environment. The inner bottom directly bears the weight of the human body and pfers the gravity to the sole and heel. The inner sole is affected by bending, extrusion and friction. It is also affected by the sweat and the humidity and temperature inside the shoe. The center is fixed between the bottom and the bottom of the leather waist to strengthen the rear part and the supporting arch of the leather shoes, so that the leather shoe waist has certain elasticity to keep the position and shape of the sole and heel.

The height of the heel is suitable, so that the weight of the human body can be reasonably distributed in all parts of the foot, so as to improve the elasticity of the arch.

Some labour protects leather shoes to install steel plate to form Baotou, in order to ensure toe is not damaged.

The main heel keeps the feet in the right position in the shoes.

The edge of the main heel is thin and elastic, and it can gently clip the upper part of the heel, and when shoes are worn, the shoes do not fall off with the feet.

The main products are: suede sewing shoes, sticky leather shoes, sewing shoes, layering and suing leather shoes, Indian soft leather shoes, California leather shoes, molded shoes and molded shoes.

Among them, molded shoes and molded shoes are combined with upper and inner sole while shoe sole and shoe heel are molded, molded by vulcanization and vulcanization, and thermoplastic materials (PVC, thermoplastic rubber, etc.) are molded by injection molding.

In addition, there are also anti slit shoes, cut suture leather shoes, sticky joints and leather shoes.

Early sports shoes and traditional leather shoes are basically the same in structure and material usage. With the development of sports, all kinds of sports events have special sports shoes, such as running shoes, high jump shoes, all kinds of ball games shoes, etc.

At the same time, there are many new sports shoes, such as training shoes, tourist shoes and so on. This type of sports shoes has gone beyond the scope of pure competition sports shoes, more and more people use it as a general leather shoes.

Because sports shoes must conform to the characteristics of all kinds of competitions and sports, to ensure that feet are free from injury and achieve good results, they are structurally different from traditional leather shoes.

The shape and size of the two pairs of shoes and feet should be corresponding, but there are differences.

The foot is a supporting organ and a motor organ. When walking, all parts of the foot are expanded, bent, stretched, contracted and so on. The leather shoes must adapt to these dynamic changes of the feet to fit the feet.

If the upper, the lining and the bottom of the body are not good enough to absorb moisture and moisture, the sweat absorbed by them is very small. The relative humidity in the shoes will become larger and larger, and the comfort will decrease.

The combination of leather and shoes, the quality of the materials used and the performance of leather shoes are also closely related.

There are 100 ways to make hand-made shoes.

The process of manufacturing leather shoes is much simpler than manual labor.