Do not fade the dye, please recommend a few thanks to the chemical dyes.
Is the dye will fade, but the degree of different, the general dye fastness indicators, the worst level, the best of eight. The same dye used in different materials are also fast on the fast. Do not fade (in fact, fade is not obvious) Must be selected on the dye varieties, a variety of materials have a special dye for dyeing (with) color. Can achieve good fastness, such as cotton with dyes; polyester disperse dyes; acrylic cationic dyes; leather, wool with metal Combined with dyes; paper with a direct dye; paint paint with organic pigments. Can not achieve the purpose of fading. Can only briefly introduce,
