Printing method and printing press for use in practicing the method

摘要

A method of preventing an ink from increasing in viscosity is practiced by repeatedly performing the steps of supplying an ink from an ink supply-aspiration nozzle 4 to an ink reservoir 11 provided between an inking roll 1 and a squeeze roll 2 pressed into contact with the inking roll 1, moving the nozzle 4 toward one end of the reservoir 11 and causing the nozzle 4 to aspirate a predetermined amount of ink to produce a flow of ink in the reservoir 11 toward the end thereof, and moving the nozzle 4 toward the other end of the reservoir 11 and similarly causing the nozzle 4 to aspirate a predetermined amount of ink to thereby produce a flow of ink toward the other end. A diluting liquid is supplied to the reservoir 11 while performing these steps.