Because it is a fake product~~
If it is genuine leather, it will be certified by the genuine leather mark. . .
Genuine leather refers to natural leather, which is processed from animal skins. Fake leather refers to synthetic leather or other products that look like real leather but are actually artificially synthesized from chemical raw materials. Since the emergence of synthetic leather, it has been imitating natural leather. After years of efforts, it has become very close to natural leather in various characteristics, especially in appearance, which is almost indistinguishable.
However, the structure of natural leather is very complex. It is still difficult or even impossible to imitate it artificially under current conditions. Although fake leather sometimes appears to be "real", you can tell real leather from fake leather if you master the identification method:
1. Look: First of all, you should distinguish from the leather's patterns, pores, etc., in natural leather. Patterns and pores can be seen on the surface of the leather, and they are unevenly distributed. There are animal fibers on the reverse side, and the layers are clearly discernible in the side section. There are animal fibers in the lower layer. If you scratch it with your fingernails, the leather fibers will stand up and have some wrinkles. It feels like velvet, and a small amount of fibers can fall off, while the fabric can be seen on the reverse side of synthetic leather, and there are no animal fibers on the sides. Generally, the surface has no pores, but some have imitation leather artificial pores, and there will be unobvious pores, and some patterns are also It is not obvious, or there are more regular artificial patterns, and the pores are quite consistent. The shape of natural leather is irregular, and its thickness is also uneven. Its surface often has some natural defects, either light or heavy. Its surface is smooth and fine to varying degrees. Generally, the edges and abdomen are loose. Full-material leather There are obvious pores and patterns, and there are usually piles in the leather. Synthetic leather has a uniform thickness, a smooth surface, and no natural defects. Its pores and patterns are also very uniform, and there is generally no pile in the leather.
For leather products, it is difficult to distinguish between genuine and fake leather, especially leather products that are small in size, tightly structured, and cannot see the inside. The identification method for such products is: (1) First look at the appearance , uniform texture, no damage, no rough lines, and no defects may be artificial leather; while the texture of real leather has some differences, especially the difference between the main and secondary parts of the leather product should be more obvious; (2) Carefully observe the distribution and shape of pores: natural leather has many pores and is deep and not suitable for bottoming, and is slightly slanted; while those with shallow and vertical pores may be synthetic leather modified leather. (3) Viewed from the cross section, the cross-section fibers of natural leather have their own characteristics, and the thickness of the fibers in each layer changes. The fiber layers of synthetic leather are basically uniform, and the surface layer is like a plastic film.
2. Touch: Genuine leather is smooth, soft, plump and elastic when touched by hand. When the front side of the leather is bent downward at about 90 degrees, natural wrinkles will appear. Bend different parts separately to produce If the thickness and number of creases are obviously uneven, it can basically be determined that it is genuine leather. Because real leather has a naturally uneven fiber structure, the wrinkles formed are also obviously uneven. Generally speaking, artificial synthetic leather is astringent, rigid, has poor softness, feels like plastic, and has poor recovery properties. The thickness of the creases remains the same after bending.
3. Smell: Natural leather has a strong smell of fur. Even after treatment, the smell is obvious, while artificial leather products have a plastic smell and no smell of fur.
4. Other detection methods
Drip test: The leather with strong water absorption is obviously natural leather, otherwise it may be artificial leather.
Tensile and elasticity test: Natural leather has good elasticity and tensile strength, and vice versa, it is artificial leather.
Blow test: You can blow air on the reverse side of the leather with saliva, and leakage will appear on the front. It is precisely because of the "anti-reverse performance" of genuine leather that when you wear leather clothing, it has a cold-proof effect. It is very obvious and has good breathability, which fully reflects the value of genuine leather.
Combustion identification method: mainly smell the burnt smell and look at the state of the ashes. When natural leather is burned, it will emit a smell of burnt hair. The burnt ashes are generally easily broken into powder, while artificial leather, After burning, the flame is also strong, shrinks rapidly, and has an unpleasant plastic smell. It becomes sticky after burning and hardens into a block after cooling.