A review on reverse micellar approach for natural fiber dyeing

Abstract

This study reviews the need and importance of non-aqueous dyeing systems in the chemical processing industry, especially using the reverse micellar system in the dyeing of natural fibres. When it comes to conventional dyeing systems, which use large quantities of water, chemical, and energy, cause a lot of effluent load to the environment. Again the effluent water has to be treated well to eliminate all the harmful substances in it. To overcome the issues, a lot of research has been carried out in this area to minimise the use of water and chemicals in the dyeing process. Like use of low material to liquor ratio (M:L) in dyeing, dyes with high fixation at lower temperatures, low/salt less dyeing in case of reactive dyeing with cotton, cottonseed oil dyeing, microwaveassisted dyeing, and use of supercritical carbon dioxide in case of polyester dyeing and many more. All the above said methods are aqueous-based and, after the completion of dyeing, results in wastewater generation, which requires further treatment to reduce the harmful chemicals. Therefore, to further minimise the use of water and chemicals in the dyeing of natural fibres reverse micellar system has been introduced with the help of surfactants of both Ionic and nonionic in nature. As of today, a lot of work has been carried out in the dyeing of natural fibres with this system by employing ionic, nonionic, and mixed surfactants. Fascinating results were obtained in the dyeing with good levelness, high exhaustion, and fixation values, and results were compared with conventional dyeing. Computer colour matching studies were also done better to understand the applicability of these systems in the industry and found nearer results.

Dyeing of polyamide fabrics with a reverse micellar system using soybean oil as a solvent

“…Thus, in addition to the process reaching a higher colour yield, it effectively reduces the hydrolysis of the dye, chemicals and energy consumption, water treatment and, consequently, the volume of textile effluent. [10][11][12] Recently, Bairabathina and co-workers completed a review of reverse micellar dyeing, 13 describing work carried out in the dyeing of natural fibres with a nonaqueous system by employing ionic, nonionic and mixed surfactants.…”

“…Recently, Bairabathina and co‐workers completed a review of reverse micellar dyeing, 13 describing work carried out in the dyeing of natural fibres with a non‐aqueous system by employing ionic, nonionic and mixed surfactants.…”

Prediction of the reactive dye recipe in cotton fabric dyeing using the pad‐dry‐pad‐steam process by particle swarm optimisation‐least squares support vector machine with matching database

“…Or, after the customers provide the colour samples, the plants measure the colour of the sample by instrument, obtain the best dye recipe generated by computer, and then proof and modify the dye recipe. It is more accurate and faster to measure the properties of the colour with instruments than by manual methods, making colour matching more rigorous, scientific and reliable 3–5 . The development of computer colour matching has, for dye and dyeing plants, not only greatly improved the production efficiency, but has also greatly reduced the cost.…”

“…It is more accurate and faster to measure the properties of the colour with instruments than by manual methods, making colour matching more rigorous, scientific and reliable. [3][4][5] The development of computer colour matching has, for dye and dyeing plants, not only greatly improved the production efficiency, but has also greatly reduced the cost.…”

Looking Back to Look Forward

“…They also build a case for more rigorous reporting of experimental information of studies which employ them, because the conventional level of detail is typically insufficient to make sense of the behaviour of reactive dyes within a cellular environment. Other reviews to appear in the last year tackle subjects that are of importance to diverse fields of coloration: research to treat coloration industry wastewater [5], developments in oxidative colorants for the permanent dyeing of hair [6], modification of pigment dispersion properties through encapsulation [7] and technologies that greatly reduce water usage in dyebaths [8].…”