Perets A. Development of the technological process of chrome tannage of skins using oxygen-containing hydrocarbons.

Dissertation is devoted to the development of leather chrome tanning technology using oxygen-containing hydrocarbons that are the composition of polyfunctional action, obtained by liquid-phase oxidation of sunflower-seed oil. The developed technology proposes the treatment of stock by fat emulsion before tannage, tannage by chrome compounds at the temperature 36…40 С, fat-liquoring, dyeing, drying and coating dyeing. While preparing for tannage 1…4% of stock weight of oxidized sunflower-seed oil and for derma treatment (fat-liquoring) has been already formed - the composition on the basic of oxygen-containing hydrocarbons and sulfitated oxygen-containing hydrocarbons are used. The developed technology allows rationally usage of chemi-cal and raw materials, ensures to obtain soft, pliable, flexible, evenly colored leather with thin coating film.