Dope Dyed technology refers to adding dyes directly to polyester raw materials during the spinning process, so that the yarn is dyed at the early stage of production. Compared with the traditional post-dyeing process, Dope Dyed greatly reduces the water consumption in the dyeing process because it does not require a large amount of water to rinse and fix the dye, avoiding the large amount of water and chemical emissions in traditional dyeing, and significantly reducing water pollution.