Abstract
The purpose of this paper is to examine a method to improve the working environment and to decrease the volume of deodorization apparatus exhaust at a given print shop.
For these purposes, we installed the hoods which were fitted over one-color gravure printing press and two-color gravure printing press. It is estimated that the minimum flow rate of exhaust air in the hoods to satisfy the maximum allowable concentration (147 ppm) of organic solvents is 1, 000 m3/hr for a one-color gravure printing press and 1, 100 m3/hr for a two-color gravure printing press. If all of the printing presses are in operation, the total flow rate of exhaust air and the total concentration of exhaust gas are estimated to be 10, 400 m3/hr and about 690 ppm, respectively.
