Abstract
Electron beam curable coatings were investigated to provide good film surface properties. These coatings based on the blend of two acrylate compounds were used in this work. One is the composition (A) consisting of polyurethane diacrylate and multi-functional urethane acrylate. Another is the composition (B) consisting of polyurethane diacrylate and multi-functional ester acrylate. Stain resistance was evaluated on the surface and the reverse of a coated film which was applied on a substrate such as a glass plate. The composition (A) gives good resistance to the reverse side. On the other hand, the composition (B) gives good resistance to the surface side. Based on the surface analysis, it results in good stain resistance that the multi-functional component is localized in the surface portion. Stain resistance was influenced by the composition of coatings, curing conditions and kinds of substrate.
