Inking unit in a rotary - offset printing press with an ink applicator roller to the reduction of the pearlescent effect of the printing ink

摘要

Inking unit in a rotation - offset printing press with at least one of the plate cylinder (p) to be contacted and these ink transferring ink forme roller (f₁, F₂, F₃), which an inner core (30) and along its length, an outer layer (21) having a hardness in the range between 50 shore a and 100 shore a, wherein the outer surface of the outer layer (21) along the axial length of the outer layer (21) has a convex shape, wherein the shape of the curve which the outer diameter of the outer layer (21) of the ink forme roller (f₁, F₂, F₃) in a function of the axial length, the diameter and the materials of the ink forme roller (f₁, F₂, F₃) it is determined.