PURPOSE: To shorten the time for temperature rise, facilitate the laminating work, improve the finish of lamination and miniaturize the device for laminating by a method wherein a heat radiative lamp, as a heating source, is arranged in the interior of a pressing roller.

CONSTITUTION: The axially slender heat radiative lamp 13 (halogen lamp, tungsten lamp or the like) is arranged in the interior of the heating roller 11 to heat the surface of the pressing roller 11. Infrared rays L generated from the lamp 13 are radiated against the inner surface of the pressing roller 11 directly to improve a heating efficiency and rise the temperature of synthetic rubber 12 to a temperature necessary for laminating in a short period of time. A laminated material of a sort of cards 19 and a transparent film 20, inserted between the pressing rollers 11, are pressed under heating thereby fusion bonding the transparent film to the surface of a card and the like.