Milk cotton will not pill in a short period of time, but after many times of washing, the wool becomes loose, it is easy to pill. Milk cotton is characterized by Shu soft, lightweight, but also very breathable, especially suitable for use in bag weaving clothing. Milk cotton, also known as milk silk, milk protein fiber products belong to a kind of textile materials, belongs to the animal and plant protein fiber series, is the liquid milk degreasing, de-watering of milk protein, plus soften the agent, 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 processing into milk silk. Milk cotton is not an artificial chemical fiber.