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 utilized for a wide range such as shoes, apparel, furniture, handbags etc.
Real leather is peeled off from animals, like pigskin, read more sheepskin, crocodile skin, and so on. 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. Top of the part is processed in to the first-layer of leather. The next layer of leather is 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 to distinguish real leather and PU leather?
First, we must identify from the areas of leather pattern, pores, etc. Is seen in the top of natural leather, the pores do exist, and the distribution is uneven, there’s animal fibers, side section, and the layers are clear, and there is 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 absolutely no animal fiber in the medial side, and the general epidermal does not have any pores, but some are imitation leather pores, you will have undesirable pores, a few of the patterns aren’t obvious, or have a compared artificial pattern, and the pores are also quite consistent. At the moment, 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 much higher than PU leather, so is real leather is with much better properties than PU? The answer is not any. Real leather is expensive is because of its many reasons. Such as 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. 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 rather than real leather.