First layer and second layer of skin difference

(1)(shoes manufacturer)  First layer of skin with a grain of cattle, sheep, pig, etc., have a natural leather tendon marks and other scars and blood, occasional stab wound to the processing and utilization of low belly area, Import first layer of skin and the number of cattle branding. Whole grain dough from the thickness and coarseness pores to distinguish what belongs to animal leather. More types of leather such as cow leather, meat, leather, grazing leather, cowhide, cowhide male, not castrated male and castrated male cowhide leather. In our country there are yellow leather, buffalo, yak skin and Pianniu hides. Among them, the buffalo pores thicker and more sparse; yellow leather buffalo pores are more fine and dense. Sheepskin pores even more dense and somewhat thin slope, mainly sheep and goat skins into two categories. The rule is a result of long-haired pigskin 3 to 5 a handful of distribution, it is easy to distinguish, and more generally with the pigskin in captivity, as well as wild boar skin, a famous South American wild boar, wild boar leather that has obvious pig skin pores and grain characteristics, due to its special structure of collagen fibers can be processed into a very soft garment leather or leather gloves, high-value. In addition, ostrich, alligator, alligator skin, lizard skin, snake skin, bullfrog skin, saltwater fish skin (shark skin, cod skin, Min skin, eel skin, pearl skin, etc.), fish skin ( There are grass carp, carp scaly skin and other skin) with hair fox (fox skin, blue fox, etc.), weasel, sticking, rabbit, etc. are easily identifiable and can not be made from the second floor.women shoes manufacturer

First layer of skin is composed of various animals, raw hides processed directly, or thicker cortex cattle, pigs, horses and other animals skin after hair removal cut each into two layers, the fibrous tissue of the upper part tight processed into a variety of head layer of skin.

(2) two loose fibrous tissue layer of skin is part of the story, the chemicals sprayed or covered with PVC, PU film processing.

Thus, the distinction between the first layer and second layer of skin effective method is a longitudinal section view of Chapi fiber density. First layer of skin by a thin, dense fibrous layer and closely linked with its slightly over-layer together to form a loose, with good strength, elasticity and plasticity characteristics of technology. Second floor only loose fibrous tissue layer, only after spraying chemicals or polishing leather products can be used to produce, it maintains a certain natural elasticity and plasticity characteristics of technology, but the strength is poor, with the first layer of the thickness required Like skin. shoes factory