Different types and specifications of the products of Pingpingjia series and his use Peregal series is also known as fatty alcohol polyoxyethylene ether, leveling agent O, also known as flat and O, is a non-ionic surfactant, the appearance is milky white or beige ointment, when the molecular weight is high, it is solid (according to It is required to be made into a flake solid), soluble in water, ethanol, ethylene glycol, etc., with a cloud point, and the pH of a 1% aqueous solution is neutral. It can resist acid, alkali, hard water, heat and heavy metal salts. It has strong leveling, retarding, penetrating and diffusing properties for various dyes. It has the ability to assist in scouring and can be used together with various surfactants and dyes.