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, PU leather like pigskin, sheepskin, crocodile skin, and so on. The first 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. The upper part is processed in to the first-layer of leather. The next layer of leather is a mix of PU resin and the low layer of skin or scrap material of the animal skin. The toughness, handfeel, and abrasion resistance of the next layer are much lower than the first layer of leather.
How exactly 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’s animal fibers, side section, and the layers are clear, and there is animal fibers in the low layer. Try together with your fingernails, you will see leather fibers, there exists a feeling of napping, and a small amount 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 has no pores, but some are imitation leather pores, you will have undesirable pores, a number of the patterns are not obvious, or have a compared artificial pattern, and the pores may also be quite consistent. At this time, they can be carefully observed by aid from magnifying glass, or can easily see the fine difference.
Generally speaking, the costs of real leather (especially the initial layer leather) are very much higher than PU leather, so is real leather has been much better properties than PU? The answer is not any. 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 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 instead of real leather.