Ink Adhesion Ink adhesion refers to the ability of printing inks to adhere to the surface of a printing substrate, such as paper, cardboard, plastic, or metal, without smudging, smearing, or flaking off. Proper ink adhesion is essential for producing high-quality prints with vibrant colors, sharp detail, and long-lasting durability. Factors that influence ink adhesion include the surface properties of the substrate (such as porosity, texture, and coating), ink formulation (such as viscosity, drying time, and pigment dispersion), and printing conditions (such as temperature, humidity, and pressure). |