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 may be used for a wide range such as for example shoes, apparel, furniture, handbags etc.
Real leather is peeled off from animals, like pigskin, sheepskin, PU leather fabric crocodile skin, and so on. The first layer of leather is directly processed from the raw skin of various 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 a combination of PU resin and the lower layer of skin or scrap material of the animal skin. The toughness, handfeel, and abrasion resistance of the next layer are much lower compared to the first layer of leather.
How to distinguish real leather and PU leather?
First, we should identify from the aspects of leather pattern, pores, etc. Is 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 low layer. Try together with your fingernails, there will be leather fibers, you will find a feeling of napping, and a small amount of fibers could 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 may also be quite consistent. At the moment, they may be carefully observed by the aid of magnifying glass, or can see the fine difference.
Generally speaking, the costs of real leather (especially the initial layer leather) are very higher than PU leather, so is real leather is with far 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. Because of their excellent physical & chemical properties, healthy & eco-friendly & animal-friendly performance, good uniformity, etc, Europe and USA, etc are highly respected and gradually choose innovative PU leather instead of real leather.