PU (polyurethane) faux (synthetic) leather material is using knitted fabrics, woven fabrics, or non-woven fabrics because the substrate and coated with polyurethane resin. The fabric can be used for a wide range such as 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 slice the thick skin of cattle, pigs, horses, etc into upper and lower layers. Top of the part is processed into the first-layer of leather. The next layer of leather is really a mix of PU resin and the lower layer of skin or scrap material of the pet skin. The toughness, handfeel, and abrasion resistance of the next layer are much lower compared to the first layer of leather.
How exactly to distinguish real leather and PU leather?
First, we should identify from the areas 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 obvious, and there’s animal fibers in the lower layer. Try together with your fingernails, there will be leather fibers, there is a feeling of napping, and a small amount of fibers could be removed, and the faux leather can easily see the fabric, there is absolutely no animal fiber in the medial side, and the general epidermal has no pores, however, many are imitation leather pores, there will be undesirable pores, a few of the patterns are not obvious, or have a compared artificial pattern, and the pores are also quite consistent. At this time, they might be carefully observed by aid from 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 is with much better properties than PU? The answer is no. Real leather is expensive is due to its many reasons. Such as scarce sources and tedious processing of animal skins. Nowadays with the development of technology, nature leather can not 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 instead of real leather.