... It is mainly used as wet end additives, surface sizing agent, coating adhesion and cardboard adhesives to improve the ... paper's physical properties, surface properties, printability, etc.2. Corn Starch used ... .It is often used as a sizing agent, printing and dyeing finishing agent, as well as stiffness, etc. ... m/m) 0.15 max0.12SO2, mg/kg 30 max16Protein(dry basis),%(m/m) 0.35 max0 ...