Abstract: A surface treatment apparatus for printed sheets that is capable of preventing radiation of UV rays onto printed sheets when out of use including a varnishing section for applying UV cure resin varnish on a printed sheet; a cylinder for conveying a printed sheet with the UV cure resin varnish applied thereon at the varnishing section; a film pressing part for pressing a transfer film onto a printed sheet on the cylinder; and a UV radiation part for curing UV cure resin varnish of a printed sheet onto which the transfer film is being pressed by the film pressing part. The UV radiation part is positioned close to the cylinder when the film pressing part is positioned close to the impression cylinder; and the UV radiation part is positioned away from the cylinder when the film pressing part is positioned away from the cylinder.

Abstract: It is an object of the present invention to provide a surface treatment apparatus for printed sheets that is capable of securely preventing radiation of UV rays onto printed sheets when out of use, while efficiently radiating UV rays onto printed sheets when in use. There is provided a surface treatment apparatus that includes a varnishing section for applying UV cure resin varnish on a printed sheet in a printed sheet conveying path; a cylinder for conveying a printed sheet with the UV cure resin varnish applied thereon at the varnishing section; a film pressing part for pressing a transfer film onto a printed sheet on the cylinder; and a UV radiation part for curing UV cure resin varnish of a printed sheet onto which the transfer film is being pressed by the film pressing part.