Energy-saving technology of preparing cotton fabrics for dyeing

The purpose of the work is to develop a bioscouring technology, which results in the maximum purification of cotton fabric from impurities with minimal damage to the fiber - forming polymer. As a result of the research, it was found that in order to achieve the required degree of purification from impurities and maximum wettability, it is advisable to use combined biochemical methods of preparation, consisting of sequential treatment with enzyme preparations and a traditional alkaline scouring solution at low concentrations of its constituent components. Thanks to the use of non - toxic biodegradable enzymes in the technology of preparing cotton textile materials for dyeing, it is possible to reduce the concentration of traditional liquid reagents by further loosening the fiber structure and creating conditions for a deeper and more complete removal of impurities. Thus, there is a reduction in the concentration of NaOH by 2 times, a reduction in the duration of treatment in an alkaline solution, as well as exposure to high temperature by more than 2 times.