That is, the first layer with grain surface (also known as green skin) is cut out. Non split leather is also called head leather. Compared with split leather, the former is thicker, and the most obvious feature is the uneven thickness of the whole sheet).
The structure of leather is closely intertwined by the natural growth of protein fibers in three-dimensional space. The closer to the surface, the more closely intertwined. We call the surface with natural texture and luster "grain surface".
When it comes to grain, it often involves a term "litchi grain", as the name suggests, which is the texture like litchi epidermis.
In fact, the litchi pattern in leather is only obvious in the belly part of cow hide. If litchi patterns appear in other parts or skin species, they are mostly mechanically pressed. This kind of pressed leather, including litchi patterns and other seemingly natural or geometric textures, is called "embossed leather", and the corresponding naturally formed grain is called split grain leather.
The top leather includes grain leather, shaving leather, embossed leather, frosted leather and special effect leather.
