A new modern theoretical view of the structural model of the structure of natural leather

Abstract

The article presents approaches to the processing of waste from natural leather to artificial leather while preserving the beneficial properties of natural leather. It is proposed not to grind, but to defiber leather waste, i.e. before the destruction of the material you need to weaken its structure so that the fibers are easily separated at loads less than the breaking point of a single fiber. As a result of the analysis it is established that the structure and properties of leather materials form the basis of the processes of their defibering. A structural model of the structure of natural leather has been developed, which makes it possible to determine the change in the properties of leather fibers under the action of loads in the process of defibering natural leather waste and to establish a relationship with the properties of artificial leather obtained from recycled natural leather. It is established that the fibers, joining in bundles that look like strands or ribbons, and intertwining in all directions form a structural element of the natural leather. Elastic fibers, when combined with tannins and glycoproteins, which are unbound between the structural elements of the natural leather, form a macroscopic element of the natural leather.