Mokrousova O. The scientific fundamentals of formation of leather structure of modified highdispersion minerals in aftertanning processes

The dissertation is dedicated to the physico-chemical processes of leather structure formation in wet finishing by using of modified highdispersion minerals. The physico-chemical fundamentals of purposeful formation of leather structure in aftertanning processes by means of receiving and practical use of polyfunctional materials with set structural and charged characteristics on the bases of modified highdispersion minerals were devised. The laws of collagen structure formation by highdispersion minerals were investigation by using modern methods: rheological, X-ray diffraction, infrared spectroscopy, standart contact porometry, transmission electron microscopy, scanning electron microscope, microelectrophoresis. The role of highdispersion minerals in collagen structural transformations on meso- and macrolevels by disordering and ordering of its structure has been established. The conditions of modification of highdispersion minerals were scientifically grounded. Polyfunctional materials and compositions were obtained and there properties were investigated. The technologies of the use of obtained materials were developed. New technologies allow decrease the expenses of manufacturers on chemical materials, expand the assortment of aftertanning materials, allow decrease or eliminate the use of expensive suntans, tannins and fatty materials. Technologies increase efficiency of use of materials and quality of ready production. The developed technologies are approved at the advanced leather enterprises.