Meriem CHAFAI MELLOUKI Date: 09-01-2012
The dyeing process existed longtime ago, while it used to be all based on natural sources, the appeal of color is universal, and fabric has been colored for centuries. Some colors, like purple, were so rare and costly that they were reserved for royalty. “Until the mid-nineteenth century, all dye was obtained from natural sources, such as plants and insects.” However, since human have produced artificial dyes to achieve a boarder range colors, for different types of fiber of the textile production process, it has made this business wide successful.
Dyeing is a method, for applying various colors, and their shades on to a fabric; it can be done at any stage of the manufacturing of the fiber. The property of its color and fastness depends upon two factors: The Selection of proper dye and the Selection of the dyeing method.
According to the textile material, the dyeing techniques are different for each kind, and so are the steps of getting it done properly. Coloration involves the use of capable dye stuffs of reacting and combining with the textile fiber molecule, usually when in water solution, and usually with other auxiliary chemicals to enhance the process. Dyeing is a method, for applying various colors, and their shades on to fibers, yarns or fabric, where the dye molecule interact with the full fibers of the fabric. Natural dyes: * Natural dyes are based on Natural sources generally plant so the color is extracted in special conditions depending on each plant, but also can be extracted from insects like the Cochineal.
Advantages of using natural dye: 1. Natural dyes are more eco-friendly than the synthetic dyes, as the synthetic dying procedure can be pollutants. 2. Natural dyes are also free from carcinogenic