The fierce competition in the textile sector, especially due to the producers in Turkey, China, India, etc., implies the development of new competitiveness strategies based on cost reduction in the dying process at the same time as ensuring the quality of the products to the required standards. The solution developed by a team of researchers within the National Research and Development Institute for Textiles and Leather and successfully implemented in the economic environment consists in the design and realization of an electronic and automation system that ensures the process of textile fiber dyeing under conditions efficiency and increased productivity that responds to the technical and quality performance requirements imposed on end-user products and by consumers. The proposed technological solution is based principally on generating the turbulence stream of the solution in the dyeing bath by driving the main pump motor and maintaining the flow rate in the dye vessel constantly by actuating the float pump motor. Using the theories of fluid mechanics, optimization of the recirculation pump speed regime in under pressure textile fiber dyeing processes has demonstrated that the implementation of the technological solution leads to a turbulent regime that ensures the uniformity of the solution in the dying bath, while reducing energy consumption and energy costs, increased productivity through better process control, increased equipment lifespan, and decreased maintenance time.
