Patent ID: 7421948
Filing Date: 2008-09-09
Classification: B41F

Abstract:
1. A method for adjusting a transfer of a printing ink including: providing a printing press including a forme cylinder and an inking unit; providing at least a first ink roller in said inking unit; using said first ink roller for transferring ink to said forme cylinder; providing a forme cylinder outer surface temperature regulating device; providing a first ink roller outer surface temperature regulating device; providing an adjustment device; using said adjusting device for independently controlling said forme cylinder outer surface temperature regulating device and said first roller outer surface temperature regulating device; adjusting a first parameter of said ink by adjusting said first ink roller outer surface temperature using said first ink roller outer surface temperature regulating device as a function of an increasing speed of said printing press; adjusting a second parameter of said ink, different from said first parameter, by adjusting said forme cylinder outer surface temperature using said forme cylinder outer surface temperature regulating device as a function of said increasing speed of said printing press; selecting said first parameter of said ink as a viscosity of said ink; selecting said second parameter of said ink as a tackiness of said ink; compensating for a delivery decrease of said ink by said first ink roller to said forme cylinder occurring as said function of said increasing speed of said printing press by reducing said viscosity of said ink by increasing said first ink roller outer surface temperature in accordance with said increasing speed of said printing press; compensating for an increase in said tackiness of said ink to be transported to a print stock from said forme cylinder, occurring as a function of said increasing speed of said printing press, by reducing said tackiness of said ink, by increasing said temperature of said forme cylinder outer surface in accordance with said increasing speed of said printing press; and increasing said first ink roller outer surface temperature and said forme cylinder outer surface temperature using said adjusting device independently of each other and in accordance with said increasing speed of said printing press.