1: Identify genuine leather
Hand touch: That is, touch the leather surface with your hands. If it feels smooth, soft, plump and elastic, it is genuine leather; while generally artificial and synthetic leather surfaces Astringent, rigid, and poor softness.
At first glance: genuine leather has clearer hair and patterns, yellow cowhide has more symmetrical fine pores, yak leather has thicker and sparse pores, and goatskin has fish-scale pores.
Smell: All genuine leather has the smell of leather; while artificial leather has a pungent plastic smell.
Ignite: Tear off a little fiber from the back of real leather and artificial leather. After igniting, anything that emits a pungent smell and forms knots is artificial leather; anything that emits a hairy smell and does not form hard knots is real leather.
2. Identify artificial leather and synthetic leather
With the above four basic identification methods, it is obvious to compare and identify artificial leather and synthetic leather. In addition, artificial leather and synthetic leather have the following characteristics:
1. When pressing the leather surface with your fingers, there will be no obvious pores and wrinkles. If there are wrinkles after pressing, they will not disappear naturally.
2. The leather surface has no pores, which is an important feature for identifying the authenticity of leather.
3. If the corners are cut off and burned, there will be a smell, but it is not the smell of burnt hair.
3. How to distinguish cow leather, pig leather, horse leather and sheep leather?
Different types of leather have different characteristics and uses. For example, cow leather has a fine surface and high strength, and is most suitable for making leather shoes and leather goods; sheep leather is light, thin and soft, making it an ideal fabric for leather clothing; pig leather has better breathability and water vapor permeability.
Pig leather: The pores on the leather surface are round and large, and the pores extend into the leather at an angle. The pores are arranged in groups of three, and the leather surface shows many small triangular patterns.
Cow leather: Both cattle leather and buffalo leather are called cow leather, but there are certain differences between the two. The pores on the surface of yellow cow leather are round and extend straight into the leather. The pores are dense and even, arranged irregularly, like a sky full of stars. The pores on the surface of buffalo leather are larger than that of cattle leather, and the number of pores is less than that of cattle leather. The leather quality is looser and not as good as yellow 8-cylinder steel.
Horse leather: The hair on the surface of the leather is also oval, which is smaller than that of cattle leather. The pores of yellow cow leather are slightly larger and arranged more regularly.
Sheep leather: The pores on the leather grain are oblate and clear. Several pores form a group and are arranged in the shape of fish scales.
Quality identification of leather
Cowhide can be divided into multiple layers (up to 8 layers). The outermost layer is the first layer of leather, which has the best quality, followed by the second layer. The strength, elasticity and breathability of the skin are not as good as those of the top layer of skin. Car seats must be made of top-grain leather. A kind of composite leather currently on the market is a second-layer leather with a layer of adhesive film attached to the surface. The surface is exquisite and looks very much like top-layer leather. Some businesses use this to pretend to be top-layer leather and deceive users. Pay attention to identification.
From a professional point of view, identifying leather should be judged from the smell, specific gravity, light resistance, migration resistance, atomization resistance, thermal yellowing, friction resistance, etc. of the car leather. Since most car owners do not have professional knowledge in this area, it is difficult to judge. You may wish to use the following simple methods to identify it.
1. Labeling method
Leather from the original factory will be marked on the back with the manufacturing date, leather factory name, area, etc. Of course, the manufacturing date should not be too long. If the leather is more than 3 years old, you should pay attention to whether there is mold.
2. Smell method
Good leather should not have a pungent smell after treatment, so too much solvent smell and paint smell are not good.
3. Heat-resistant method
It is best to ask the manufacturer for a small piece of leather, and touch the sample with a cigarette butt for about 2 to 3 seconds to avoid buying artificial leather products; Burning with a lighter requires a longer time due to the large contact area.
4. Viewing method
Under a 30x magnifying glass, you can see that the outside of the leather looks like the surface of the earth, with pits and holes, and its breathability is good. Leather for automobiles requires special treatment such as wear resistance and light resistance, and the pores will be covered.
5. Cutting method
Use a blade to cut the leather across. The color of the leather must be consistent from the outer layer to the inner layer (black on the outside and dark gray on the inside is normal). Pay attention to whether there is any abnormal color under the outer layer to avoid buying second-hand leather that has been dyed or recolored.
6. Wiping method
Wipe the surface of the leather with stain removal oil and pay attention to whether there is fading or peeling. This can avoid buying leather that has been recolored.
7. Law of origin
All countries in the world produce leather, but only Europe (Northern Europe, Italy, Austria, Germany, etc.) has a long history of leather industry, and naturally its leather processing level It will be much higher than low-grade Southeast Asian leather.
8. Documentation method
Leathers from genuine factories have clear basic information such as source, place of origin, trademark, leather measurement items, and leather use authorization. All of them are indispensable.
9. Guarantee method
This is the easiest way. When purchasing a leather chair, don’t forget to ask the store if there is a guarantee service card to avoid buying inferior quality products. Leather, secondly, develops the habit of regular maintenance, and thirdly, provides permanent after-sales maintenance services. It can be said that it kills three birds with one stone.
How to identify genuine leather and fake leather
1. Finger method: press the leather with your fingers, and there will be fine wrinkles on the surface. When your fingers are lifted, it is the dermis where wrinkles disappear immediately. Artificial leather and synthetic leather are wrinkle-free.
2. Use the water method: drop a little water on the leather, and then wipe the water stains dry. If it feels sticky and wet to the touch, it is genuine leather.
3. Perception: Take the front side of the leather and observe it carefully with your eyes. Real leather has pores, but artificial leather has no pores. Look at the back of the leather and look for areas that are not folded. If it is made of fabric, it must be artificial leather or synthetic leather.
Identification of shaved leather, split leather and regenerated leather
Fold the leather in half and relax it. If the wrinkles disappear immediately, it is cowhide, and if the wrinkles do not disappear, it is regenerated leather.