Leather types are mainly divided into several categories in the market: Pigskin, cowhide and artificial leather. There are also suede used by some international brands. There are many seed coat species, such as pig skin. In terms of strength, the pores are relatively thick and unsightly, which is very easy to identify For another example, cow leather is only inferior to pig skin in strength, but the surface is very delicate and easy to damage, while in artificial leather, the surface is very delicate and free of defects, very durable and has certain defects in air permeability
Real leather refers to natural leather, which is processed from animal skin. Artificial leather refers to synthetic leather or other leather like products, which are actually synthesized from basic chemical raw materials. The structure of natural leather is very complex. It is extremely difficult or even impossible to manufacture it manually and seamlessly under the current conditions.
In terms of real leather, it is mainly made of natural leather, that is, animal skin. In terms of artificial leather, it mainly refers to synthetic leather or other leather. In fact, it is a product synthesized by basic chemical raw materials Although the structure of natural leather is very complex, it is very difficult and impossible to exist under the current conditions when we want to manufacture it perfectly
In terms of natural leather, the shape is very irregular, and the thickness is also very uneven. At the same time, there are some natural defects on the surface more or less, and the degree of smoothness and fineness of the surface is different. Generally, the side and abdomen are relatively loose, and the full material leather will have more obvious patterns or pores. In general, there is pile in the leather The thickness of synthetic leather is relatively uniform, and the surface is more smooth. There is no natural defect, and it is very uniform in pattern and pores There is usually no pile inside the leather
For finished leather products, it is difficult to distinguish between genuine leather and artificial leather, especially the leather products with small area, compact structure and no inner part. The identification method of this kind of products is: first look at the appearance, the texture is uniform, there is no disability, no coarse grain, and the artificial leather without any defects may be artificial leather; There are some differences in the texture of leather, especially in the joint between the main part and the secondary part of leather products. Then carefully observe the distribution and shape of pores; Natural leather has many and deep holes, which is not suitable to see the bottom and is slightly inclined; The shallow and vertical pores may be synthetic leather modified leather. In addition, from the cross section, the cross-sectional fiber of natural leather has its own characteristics, and the fiber thickness of each layer changes. The fiber layers of synthetic leather are basically uniform, and the surface layer is in the shape of plastic film.