Experimental determination of the non-homogeneity of the physical parameters of a leather semi-finished product

Abstract

The non-homogeneity in mass and geometrical parameters of leather of one type and one manufacturing method is experimentally investigated and analyzed. Experimental studies were conducted on semi-finished cattle products of a combined batch and chrome kips from one technological batch. The results of the experiments showed that with a combined batch, between the mass and thickness of the leather semi-finished product, there is a moderate correlation between the studied physical parameters and the average error of the correlation coefficient of the leather. It is determined that high correlations are expressed between the mass and area of the leather, and between the thickness and area of the leather, respectively. It was revealed that the samples of leathers selected for experiments (kips), depending on their type, weight and area, have a higher correlation. So, between the mass, thickness and area at the standard point of the kip, there is a higher correlation between the studied physical parameters of the semi-finished leather samples. The results obtained provide an opportunity to influence the properties of leather for further creation of methods of controlling the relevant devices and equipment at various stages of production processes.