I ordered a leather sofa of 3 meters, and it is not the kind of soft and hard style that sits on, ho

Look at the lines:

The dermal lines are generally not too uniform, some places are larger, some places are smaller, sometimes there are small scars like human skin injuries, and sometimes there are uneven conditions in some places. The texture of the artificial leather is particularly regular, and it looks more "perfect".

Look at the low base: The reverse side of the leather has no bottom base and looks a bit plush. The reverse side of the faux leather has a cloth base.

Look at pores: The dermis generally has small pores, and the size is not necessarily the same. Faux skins generally have no pores.

Look at the section: The cut surface of the leather is composed of irregular fibers, and there is no change in the upper and lower layers, while the artificial leather can clearly see the different materials layer by layer like a sandwich cake.

The leather is relatively smooth to the touch in a low temperature environment, and there is no cold feeling. Artificial materials, in a low temperature environment, feel cold, feel stiff, more jerky.

The elasticity of the dermis is better when pulled to both sides by hand, and there are differences in the elasticity of some transverse and longitudinal pulls. If the artificial leather is pulled by hand, it has no elastic force, or the elastic force is small, and there is no difference between horizontal and vertical pulling.

1: Compare different leather pieces, a bag, rarely made of whole leather, so that you can see different small leather pieces, the possibility of the same texture of each small piece of leather is very small, and the texture of each piece of artificial leather is the same;

2: Find the top of the bag can see the leather cut area, whether it is true or false at a glance, if a bag can not find any cut surface, do not give consumers the opportunity to verify the body is somewhat unconfident, most of the materials used in this bag are not leather.

3: Put fine water droplets on the surface of its skin, the water droplets will immediately spread through the pores, and obvious wet spots can be seen, absorbing water, that is, dermis. If the water droplets absorb slowly, the dermis should be trimmed. What does not absorb within more than 10 minutes should be two-layer skin or artificial skin.

Cut off a bit of leftovers and burn them over a fire.