PU (polyurethane) faux (synthetic) leather material is using knitted fabrics, woven fabrics, or non-woven fabrics as the substrate and coated with polyurethane resin. The faux leather fabric fabric can be utilized for a wide range such as shoes, apparel, furniture, handbags etc.
Real leather is taken off from animals, like pigskin, sheepskin, crocodile skin, and so on. The first 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. The upper part is processed into 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 than 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. 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 is animal fibers in the low layer. Try 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 absolutely no animal fiber in the medial side, and the general epidermal has no pores, however, many 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 this time, they may be carefully observed by aid from magnifying glass, or can 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 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 can not achieve many excellent properties of PU leather especially solvent-free PU and DMF-free water-based PU. Due to 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 rather than real leather.