نوع مقاله : مقاله مروری
نویسنده
دانشگاه یزد
چکیده
کلیدواژهها
موضوعات
عنوان مقاله [English]
نویسنده [English]
Textile dyeing presents significant environmental challenges because of the high consumption of water, energy, and chemical agents. Supercritical carbon dioxide (scCO₂) dyeing is an innovative, commercially viable, and environmentally friendly alternative technology. By completely eliminating water from the process, effluent generation is reduced to zero. This review examines the physicochemical fundamentals of this technology, including the role of scCO₂ in reducing the glass transition temperature (Tg) of fibers and facilitating dye diffusion into the fiber matrix. Furthermore, key process parameters, such as temperature, pressure, and concentration, are reviewed, and the application of this technology in dyeing various fibers, including polyester, nylon, acrylic, cellulosic, protein, and recycled fibers, is analyzed. Additionally, innovative strategies to enhance efficiency, including the application of reactive-disperse dyes, reverse micelles for applying ionic dyes, and dynamic process control, are discussed. Research indicates that this technology can produce textiles with quality and color fastness properties equivalent to or superior to those using aqueous methods, thus presenting a promising outlook for the clean production of textiles.
کلیدواژهها [English]
)