Cow leather is made from raw cowhide by dehairing and tanning and other processes have been denatured non-perishable leather. Cow leather according to the level can be divided into the first layer of leather and two layers of leather, made of finished leather need to go through dozens of processes.
The first layer of leather and according to the level of distinction, the best is grain leather (also known as full grain leather, Korean translation name: napa leather), followed by repairing the surface of the leather, followed by the soft surface of the leather, the least is the crushed leather.
Cow leather identification method.
Cow leather retains the natural epidermis of the grain layer, the epidermis by a dense and thin fiber layer and its close together with a slightly loose excessive layer **** with the composition, with good elasticity and skin-friendly touch. The two-layer skin, three-layer skin missing epidermis, can only use gel to cover, and then press the way to simulate the texture close to the native epidermis, obviously, this imitation of the first layer of skin practice is not only low-grade, and touch texture are not catching up with the native first layer of skin (however, according to the raw materials and processes used in coating, wear resistance is possible over the first layer of skin).