Inkjet recording method and printed material

This invention describes a method for printing durable images on transparent materials using an inkjet printer. It involves applying a special undercoat liquid containing at least two types of polymerization initiators, partially hardening it with light, then printing the image with a specific ink, and finally fully hardening both the undercoat and ink together using light from both sides in a low-oxygen environment. The light used for the initial partial hardening must be a different wavelength than the light used for the final full hardening.