PU (polyurethane) faux (synthetic) leather material is using knitted fabrics, woven fabrics, or non-woven fabrics as the substrate and then coated with polyurethane resin. The fabric can be used for a wide range such as shoes, apparel, furniture, handbags etc.
Real leather is peeled off from animals, like faux leather material pigskin, sheepskin, crocodile skin, and so on. The initial layer of leather is directly processed from the raw skin of various animals or cut the thick skin of cattle, pigs, horses, etc into upper and lower layers. Top of the part is processed in to the first-layer of leather. The next layer of leather is a combination of PU resin and the low layer of skin or scrap material of the animal skin. The toughness, handfeel, and abrasion resistance of the second layer are much lower compared to the first layer of leather.
How exactly to distinguish real leather and PU leather?
First, we must identify from the areas of leather pattern, pores, etc. Can be seen in the top 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, you will have leather fibers, there is a feeling of napping, and handful of fibers could be removed, and the faux leather can easily see the fabric, there is no animal fiber in the side, and the general epidermal does not have any pores, however, many are imitation leather pores, you will see undesirable pores, a few of the patterns aren’t obvious, or have a compared artificial pattern, and the pores may also be quite consistent. At the moment, they may be carefully observed by aid from magnifying glass, or can easily see the fine difference.
Generally speaking, the prices of real leather (especially the initial layer leather) are very higher than PU leather, so is real leather has been much better properties than PU? The solution is no. Real leather is expensive is due to its many reasons. Such as for example 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 United States, etc are highly respected and gradually choose innovative PU leather instead of real leather.