Industry knowledge of leather cutting plotter：

Leather is an animal skin that has been denatured and decomposed by physical and chemical processing such as depilation and tanning. The leather is composed of natural protein fibers that are tightly woven in three dimensions. The surface has a special grain layer with natural grain and luster for comfortable hand.

In the process of human evolution, it has been found that some plant juices or mineral oils have a certain degree of enthalpy to the leather, and the raw material skin is soaked by the juice, which is more breathable and antiseptic. Thereby, the sheet material has physical properties such as softness, tear resistance, and tortuosity. The skin of this period really has the characteristics of leather products. And this juice is called a tincture. 

On October 27, 2017, the World Health Organization's International Agency for Research on Cancer published a preliminary list of carcinogens, and leather products were processed in the list of three types of carcinogens.

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