Surface Sizing Agents
Surface sizing agents are crucial additives in papermaking, applied to paper surfaces to enhance properties like strength, printability, and water resistance. These chemicals form a thin film on the paper surface, improving surface smoothness and reducing ink absorption during printing. Common surface sizing agents include starches, synthetic polymers, and alkyl ketene dimers. Starches are natural sizing agents derived from corn, potato, or tapioca, offering cost-effective sizing solutions. Synthetic polymers provide enhanced water resistance and strength properties. Alkyl ketene dimers offer superior hydrophobicity, preventing ink spread and enhancing print quality. Proper selection and application of surface sizing agents are essential for achieving desired paper characteristics.
