The Eureka Color Block sheets, thanks to their micro-weave and the special ingredients with which their fibers are impregnated, quickly absorb the colors and dirt residues released during washing, before they transfer to other fabrics and damage them. With Eureka Color Block sheets in every wash, colored clothes remain like new with vibrant and bright colors even after many washes! Additionally, with Eureka Color Block, fewer washes are needed since you don't have to separate the clothes, thus saving time, energy, and money!