Young Brunette Girl Undresses Her Jeans At The Window

Manufacturing processes
Dyeing
Traditionally, jeans are dyed to a blue color using indigo dye. Some other colors that can be achieved are pink, blue, yellow, black, and white. These colors are achieved by coloring other fabrics to resemble jeans. Approximately 20 million tons of indigo are produced annually for this purpose, though only a few grams of the dye are required for each pair of these trousers.