PRINTING METHOD

PROBLEM TO BE SOLVED: To provide an offset printing method, in which an enough gloss value is given by trying to smooth the surface of a lustrous layer and, at the same time, a transparent resin material is prevented from adhering to a sheet at the formation of the lustrous layer with the transparent resin material. SOLUTION: After a plurality of ink layers are formed at a plurality of ink layer forming parts 3, the resin material fed to a plate is transferred at a coater section 4A to the sheet 10 and, at the same time, an impression cylinder 42 is shifted towards the plate cylinder 41A by pressing pressure adjusting means when a pressing pressure is applied to the sheet passing between the impression cylinder 42 and the plate cylinder 41A so as to change the pressing pressure in order to obtain a nip width of 0.25 to 0.3 mm for forming the lustrous layer. After that, in a paper delivering part 5A, the lustrous layer is dried with a drying device with a plurality of heat sources.