Modeling the water filtration rate during the process of squeezing leather

Abstract

Mathematical models of changes in the rate of water filtration during the process of roller squeezing of leather were determined. It was revealed that the graphs of the mathematical models obtained correspond to experimental diagrams obtained by squeezing various wet materials. From the point of view of water motion, the roll contact zone (a squeezing area) is divided into four sections (phases). It was revealed that the filtration rate in the first two sections of the roll contact zone increases from an initial negative value to a maximum positive value, and in the last two sections of the roll contact zone, it decreases from a maximum value to a certain negative value.