Safety Shoes Commonly Used Leather: Genuine Leather, Regenerated Leather, Artificial Leather

< p > strong > dermis < /strong > /p >

< p > leather is made from cattle, sheep, pigs, horses, deer or some other animals. After making the tanning process of "a href=" http://www.91se91.com/ "target=" _blank "leather" /a "factory, the leather materials made of various characteristics, strength, touch, color and pattern are essential materials for modern leather products.

Among them, cowhide, sheepskin and pigskin are three kinds of leather materials used for leather making.

The dermis is divided into two types: head skin and two skin.

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< p > (1) the first layer of skin is a cattle, sheep and pig skin with grain, and there are natural scar and blood tendon marks on the surface. Occasionally there are knife injuries in the processing process and very low belly parts. The imported head skin and cattle number mark.

The whole grain of the skin can be distinguished from the animal skins from the size and density of the pores.

There are more kinds of cattle skin, such as cow skin, meat, cattle hide, cattle hide, cow hide, Bull Hide, Uncastrated Bull Hide and castrated bull skin.

There are also cattle hide, buffalo skin, yak skin and calf skin in China.

Among them, the pores of the buffalo hide are thicker and thinner, while the yellow cattle hide is smaller and thicker than that of the buffalo hide.

The pores of sheep skin are thinner, denser and slightly skewness, mainly consisting of two main categories: sheep skin and goat skin.

Pigskin's rule of long hair is a small number of 3~5 roots, so it is easy to distinguish. It is easy to distinguish. Pigskin is commonly used for raising pigs and wild boar skins. The famous wild boar is a wild boar. The boar skin has obvious porcine skin pores and grain characteristics. Because of its special collagen fiber structure, it can be made into very soft a href= "http://www.91se91.com/" target= "_blank" > dress < /a > leather or glove leather, and the value is very high.

In addition, ostrich skin, crocodile skin, short nosed crocodile skin, lizard skin, snake skin, bullfrog skin, sea fish skin (shark skin, cod skin, fish skin, eel skin, pearl fish skin, etc.), freshwater fish skin (with grass carp, carp skin and other scaly skin), fur fur fox fur (Yin Hu skin, blue fox skin, etc.), wolf skin, dog skin, rabbit skin and so on are easy to identify, and can not be made of two layers of skin.

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< p > the head skin is made directly from the raw skins of various animals, or the skins of cattle, pigs, horses and other animal skins with thicker cortex are sliced up and down to two layers, and the upper part of the fibrous tissue is processed into various kinds of head skin.

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< p > (2) two layers of skin are two loose parts of fibrous tissue, which are processed by chemical material spraying or covered with PVC and PU films.

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< p >, therefore, the effective way to distinguish the skin of the head and the two layer skin is to observe the fiber density of the longitudinal section of the skin.

The skin of the first layer is composed of a dense thin fibrous layer and a slightly loose overlayer which is closely connected with it. It has good strength, elasticity and process plasticity.

The two layer of leather is only a loose fibrous tissue layer. It can only be used for making leather products only after spraying chemical raw materials or polishing. It maintains certain natural elasticity and process plasticity, but its strength is poor, and its thickness is the same as that of the head skin.

There are also various kinds of leather used for fashion production today, but there are some differences in the processing technology.

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< p > < strong > regeneration skin < /strong > /p >

< p > recycled skin is made from various kinds of animal skins and leather waste, and then processed with chemical raw materials.

Its surface processing technology is the same as leather surface and embossed leather. It is characterized by its neat edge, high utilization rate and low price. However, the skin is generally thicker and its strength is poor. It is only suitable for making the products of price, such as price document box, pull rod bag, club sleeve and so on. The structure of its longitudinal section is uniform and uniform, and the solidification effect of liquid mixed fiber can be identified.

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< p > < strong > Artificial Leather > /strong > /p >

< p > a href= "http://sjfzxm.com/news/index_x.asp" > regeneration skin < /a > also called imitation leather or rubber compound, is the general name of artificial materials such as PVC and PU.

It is made on the basis of a href= "http://www.91se91.com/" target= "_blank" > textile > /a "cloth or non-woven fabric. It is made from different kinds of PVC and PU, such as PVC or PU. It can be made according to the requirements of different strength, wear-resistance, cold resistance, color, gloss, pattern and so on. It has a wide variety of colors, good waterproof performance, neat edges, high utilization rate and relatively low price, but the majority of artificial leather can not reach the dermis effect with its elasticity and elasticity. Its longitudinal section can see tiny bubble holes, cloth or surface film and dry dry man-made fibers.

It is a very popular material from the early stage until now. It is widely used to produce various leather products or some of the genuine leather materials.

Its increasingly advanced manufacturing process is being widely used in the manufacture of two layers of leather.

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