Animal and plant protein fibers. According to the query Aiqi knowledge people show that milk cotton is also known as milk silk, is a new type of textile fabrics, its raw materials for animal and plant protein fibers, specifically, milk cotton is the liquid milk skimming, de-watering of milk proteins obtained after the addition of softeners, made of milk slurry, and then through the wet spinning process and scientific processing, spun into milk protein fibers, and then through the wet spinning process and scientific and technological treatment into milk silk, this Fabrics are soft, washable, easy to store, etc. Milk cotton is not a man-made chemical fiber, but contains milk protein fibers extracted from milk in the line, which can be made into woolen threads, can also be made into a variety of fabrics.