How exactly the leather processing oil out
surfactants (such as detergent (such as detergent) such as degreasing agent or mechanical method to remove the skin and fat layer, referred to as degreasing.
The purpose of degreasing is to remove the fat in the skin, so as to ensure the function of the chemicals in the pretreatment process and the quality of the finished leather.
Under certain conditions (temperature, mechanical action etc.) with alkali substances (such as soda etc.)
