HIGH TRANSPARENT OPTICAL POLYESTER FILM WITH PRIMER LAYER EASILY CONTROLLING REFRACTIVE INDEX

摘要

PURPOSE: A high transparency optical polyester film is provided to ensure enough adhesion with a substrate of a primer layer. CONSTITUTION: A high transparency optical polyester film contains a one axis-drawn transparent polyester substrate film(2) with a thickness of 50-500 um and a primer layer(1) of a polymer adhesive layer. The transparent polyester substrate film contains organic particles or inorganic particles inside the film. The primer layer contains acryl-based polymer resin, water-dispersion polyester copolymer resin or polyurethane-based resin, and inorganic particles. The adhesive force between the substrate film and primer layer is 95-100%.