Dyeing the fabric means transferring the color on the textile material (yarn or final fabric.) Scholars have found mention of dyeing textiles as far back as 2600BCE. Yes, dyeing Fabric is such an old process. Primarily, the source of dye was nature. The dyes/colors were extracted from animals or plants. Since the mid-19 th century, humans have started producing artificial dyes to get a broader range of colors and also to have more long-lasting ones. Dyes come in four forms- powders, pastes, crystals, and liquid dispersions. They all get completely dissolved in an aqueous solution like water. When the textile material is dipped into it, the dye molecules get fixed on the fibers. Basically, the dyeing process is all about absorption and diffusion. Absorption is transferring of dyes from the aqueous solution onto the fabric surface and diffusion is dyes getting diffused into the fibers. Of course, the temperature and other controlling factors play a major role. Thi...