PU (polyurethane) faux (synthetic) leather material is using knitted fabrics, woven fabrics, or non-woven fabrics as the substrate and coated with polyurethane resin. PU leather The fabric can be utilized for a wide range such as for example shoes, apparel, furniture, handbags etc.
Real leather is taken off from animals, like pigskin, sheepskin, crocodile skin, etc. The initial layer of leather is directly processed from the raw skin of varied animals or cut the thick skin of cattle, pigs, horses, etc into upper and lower layers. The upper part is processed into the first-layer of leather. The second layer of leather is a combination of PU resin and the low layer of skin or scrap material of the pet skin. The toughness, handfeel, and abrasion resistance of the next layer are much lower than the first layer of leather.
How to distinguish real leather and PU leather?
First, we must identify from the aspects of leather pattern, pores, etc. Can be seen in the surface of natural leather, the pores do exist, and the distribution is uneven, there is animal fibers, side section, and the layers are clear, and there’s animal fibers in the lower layer. Try with your fingernails, there will be leather fibers, there is a feeling of napping, and handful of fibers can be removed, and the faux leather can easily see the fabric, there is no animal fiber in the medial side, and the general epidermal has no pores, but some are imitation leather pores, you will see undesirable pores, some of the patterns are not obvious, or have a compared artificial pattern, and the pores are also quite consistent. At the moment, they might be carefully observed by the aid of magnifying glass, or can see the fine difference.
Generally speaking, the costs of real leather (especially the first layer leather) are very higher than PU leather, so is real leather has been much better properties than PU? The solution is not any. Real leather is expensive is because of its many reasons. Such as for example scarce sources and tedious processing of animal skins. Nowadays with the development of technology, nature leather cannot achieve many excellent properties of PU leather especially solvent-free PU and DMF-free water-based PU. Due to their excellent physical & chemical properties, healthy & eco-friendly & animal-friendly performance, good uniformity, etc, Europe and United States, etc are highly respected and gradually choose innovative PU leather rather than real leather.