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. PU leather material The fabric can be used for a wide range such as shoes, apparel, furniture, handbags etc.
Real leather is peeled off from animals, like pigskin, sheepskin, crocodile skin, and so forth. The initial 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. The upper part is processed into the first-layer of leather. The next layer of leather is really a mix of PU resin and the low layer of skin or scrap material of the pet skin. The toughness, handfeel, and abrasion resistance of the second layer are much lower than 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’s animal fibers, side section, and the layers are obvious, and there is animal fibers in the lower layer. Try with your fingernails, you will see leather fibers, you will find a feeling of napping, and a small amount of fibers can be removed, and the faux leather can 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 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 the aid of 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 is with far 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.