The basic knowledge of leather sofas
Saw leather: the use of grinding machine to light the surface after finishing, and then pressed on the corresponding pattern made of. In fact, with a disability or rough natural leather for a "cosmetic". This kind of leather almost lost the original surface state,
The first layer of leather and the second layer of leather: the level of leather points, there are the first layer and the second layer of leather, of which the first layer of leather grain surface leather, repair leather, embossed leather, special effects leather; Layer and cattle two layers of leather and so on. Grain leather: in a lot of leather varieties, the whole grain side of the top, because it is less trapped by the finest raw material processing, leather surface to retain the intact natural state, the coating is thin, can show Out of the natural skin of the animal skin. It is not only wear-resistant, but also has good permeability.
Tannery is the raw material of animal skins, although the most common of our lives are pig skin, leather, sheepskin, but in fact most of the animal skin can be used for leather. Just leather, pig skin and sheepskin of good quality and large output, is the main raw material of leather. Although the leather a wide range of raw materials, according to the International Animal Protection Ordinance and a series of laws and regulations, the real raw materials used in the production of a degree to be limited, commonly used leather is: cattle leather, sheep leather, leather.
According to the physiological point of view, any skins are hair, epidermis and dermis. As the dermis contains a small network of fiber bundles, it is quite a strong and breathable. The epidermis is located under the hair, close to the top of the dermis and consists of different shapes of epidermal cells. The thickness of the skin varies with the animal, for example, the thickness of the skin of the skin is 0.5 to 1.5% of the total thickness; sheep and goat skin is 2 to 3%, while the pig skin is 2 to 5%. Genes are located under the epidermis, between the epidermis and subcutaneous tissue, is the main part of raw hides. Its weight or thickness of about 90% of raw skin.
Leather "in the leather products market is a common word, is the difference between synthetic leather and natural leather, a customary call in the consumer's concept," leather "also has a false meaning.It is mainly from the The leather is processed from a variety of leather, variety, different structure, different quality, the price is also very different.Therefore, the leather is both natural leather collectively, but also a vague logo on the commodity market.
