Andreyeva O. Scientific fundamentals of power saving technologies of tannage and leather finishing with the use of polyfunctional compounds

The hypothesis of the organization of internal spatial structure of collagen by more full attraction his active, first of all, peptide, groups to interaction with chemical materials with formation of communications of the certain types for giving necessary properties to leather has been confirmed both theoretically and experimentally. Theoretical representations about influence of the received polyfunctional compounds on formation of structure and parameters of derma at various levels of a morphological structure of collagen are developed: at a microlevel – by formation thermostable, mobile communications due to the oxidized carbohydrates, at a macrolevel – due to filling action of the modified collagen derivatives or plastification of the sulphur containing compounds. It allows to form meaningly structure and properties of leather as in modern technologies of tannage and leather finishing, and in the technologies, directed on creation of production of new assortment. In view of the deduced theoretical positions have been developed five power saving technologies of chrome and non-chrome leather tannage for shoe upper, which, in comparison with existing technologies, provide improvement of quality of finished goods at more rational using of raw materials and chemical substances, improving of ecology of the environment.