Class X student builds compressed CO2 dyeing machine to cut water use in textile dyeing

An Indian Class X student has built a prototype dyeing machine that uses compressed carbon dioxide instead of water to transfer color to fabric. Developed at Vellalar Matriculation Higher Secondary School in Erode, Tamil Nadu, the project targets textile dyeing units that currently consume large volumes of water and generate colored effluent that needs treatment. The student, Mehavaeshna, says the process can reduce water consumption and manpower, while producing colors that resist fading for years. The machine may work on different fabric types. No details were provided on pressure, energy use, dye chemistry, or cost per unit of fabric. Waterless CO2 dyeing is already an area of industrial research, but student prototypes like this help keep attention on cleaning up textile manufacturing in water-stressed regions such as Erode. The idea is worth tracking if it moves from classroom prototype to pilot scale with independent testing.