DEVICE FOR PERFORMING THE WETTING OPERATION FOR OFFSET PRINTING

摘要

Device for performing the wetting operation for offset printing, comprising a main receptacle (1) which contains a wetting solution; an outlet pipe (2) with a pump (3) which pushes the solution towards an outlet nozzle (4) to project it inside a recipient (5) housed in the main receptacle; a feed pipe (6) which joins said recipient to the wetting system of the offset printing machine; and a pipe (8) through which the wetting solution returns to the main receptacle. The outlet pipe of the solution has a Venturi device (9) whose main pipe (14), through which the wetting solution passes, forms part of said outlet pipe and has at least one side air-intake pipe (10) joining the main pipe at an oblique angle.