КОЛОРИРОВАНИЕ САНИТАРНО-ГИГЕНИЧЕСКОЙ БУМАГИ НАТУРАЛЬНЫМИ КРАСИТЕЛЯМИ

Abstract

The use of local raw materials is the most important task for the development of the economy of our Republic. In turn, there is a need to search for new technologies for coloring paper products, by expanding the classes of dyes used for dyeing and developing efficient processes that take into account the savings in material resources, as well as the environmental friendliness of the dyes used. At the same time, it is especially important to use natural dyes based on plants and their wastes growing in our republic. This scientific work is devoted to the study of the possibility of dyeing paper with natural dyes. The purpose of this work is to study and develop a new technology for dyeing sanitary-hygienic paper with natural dyes based on dye plants growing in the Republic of Uzbekistan. The results of the research make it possible to produce paper products at a reduced cost due to the localization of expensive synthetic dyes with natural dyes based on local flora, as well as to improve the quality indicators of these products. In addition, the increase in assortments also contributes to an increase in the productivity of paper mills. In the work, physicochemical, physico-mechanical, sorption, coloristic methods were used, and an aqueous solution of a natural dye was also obtained by extraction. In the course of this study, for the first time, new science-based technologies for dyeing paper pulp with natural dyes based on local flora were created. Based on the results of the research, an economically beneficial technological regime for the production of environmentally friendly assortments of sanitary papers was proposed.