INK SUPPLY METHOD, INKING APPARATUS AND ROLL

PURPOSE:To miniaturize an inking apparatus and to stably supply ink while reducing the load of a motor, by using heat pipes as the kneading roll, the leveling roll and the doctor roll of the inking apparatus. CONSTITUTION:A heat pipe 20 is used as a roll having a metal surface used in either one of the kneading roll, the leveling roll and the doctor roll in the inking apparatus of an offset or letterpress printing press. When heat is applied to one end of said heat pipe, for example, the part of the fin 23 thereof, it is conducted to the hollow body 21 at the part contacted with the fin 23 and a hydraulic fluid 25 to evaporate said hydraulic fluid. The gas reaching the other end having a lower temp. is condensed at the gas-liquid interface to release latent heat and heat is conducted to the heat absorbing body (ink) of the outside through the hollow body.