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China best leather laptop backpack factory teaches you the characteristics of different types of leather

Dongguan Junlong Leather Co., Ltd., as the china best leather laptop backpack factory, has its own design and development team, complete production line, and professional wholesale services for backpack customization. Below, we will discuss the characteristics of different types of leather based on material selection.

1、 Genuine leather is the raw skin peeled from cattle, sheep, pigs, horses, deer, or certain other animals. After being tanned and processed by a leather factory, it is made into leather materials with various characteristics, strength, feel, colors, and patterns. It is an essential material for modern leather laptop backpack products. Among them, cowhide, sheepskin, and pigskin are the three major leather varieties used in leather making. The dermis is divided into two types: the first layer of skin and the second layer of skin.

(1) The first layer of skin is made of grain like cow, sheep, pig skin, etc. The skin has natural scars and bloodstains, as well as occasional knife wounds during processing and extremely low utilization of the belly area. Imported first layer of skin also has the number and branding of cattle. Full grain leather can be distinguished from animal leather by its pore size and density. There are many types of cowhide, such as milk cowhide, meat cowhide, grazed cowhide, cow hide, bull hide, uncut bull hide, and castrated bull hide. In China, there are also yellow cowhide, buffalo hide, yak hide, and yak hide. Among them, the pores of buffalo skin are thicker and more sparse; Yellow cowhide has thinner and denser pores than buffalo hide. The pores of sheepskin are finer, denser, and slightly inclined, mainly divided into two categories: sheepskin and goat skin. The first layer of skin is directly processed from the raw skin of various animals, or after depilation of thicker animal skins such as cattle, pigs, and horses, it is cut horizontally into two layers. The upper layer of tightly fibrous tissue is processed into various first layer skins.

(2) A two-layer skin is a loose layer of fibrous tissue that is processed by chemical spraying or covering with PVC or PU films.

Therefore, an effective method to distinguish between the first layer of skin and the second layer of skin is to observe the fiber density in the longitudinal section of the skin. The head layer is composed of a dense and thin fiber layer and a slightly loose transition layer closely connected to it, which has good strength, elasticity, and process plasticity. The second layer of leather only has a loose fibrous tissue layer, which can only be used to make leather products after spraying chemical raw materials or polishing. It maintains a certain degree of natural elasticity and process plasticity, but its strength is poor, and its thickness requirement is the same as the first layer of leather.

2、 Artificial leather(as leather laptop backpack): also known as imitation leather or rubber, it is the general name of artificial materials such as PVC and PU. It is made of foamed or coated PVC and PU with different formulas on the basis of textile cloth or non-woven cloth. It can be processed according to the requirements of different strength, abrasion resistance, cold resistance and color, gloss, pattern, etc. It has the characteristics of various designs and colors, good waterproof performance, neat edges, high utilization rate and low price compared with genuine leather. But most of the Artificial leather, Its feel and elasticity cannot achieve the effect of genuine leather; On its longitudinal section, fine bubble holes, thin films on the fabric or surface layer, and dry artificial fibers can be seen. It is a type of material that has been extremely popular from the early days until now,

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