Ink unit having an ink forme roller for a reduction of the mottling ink

摘要

the present invention relates to an inking unit to reduce the perlens the farbfeststoffe in offset printing machines. one or more farbauftragswalzen (f1, f2 and f3) with a hard outer layer (21) of an elastomer, the hardness of between about 50 and 100 shore a, preferably between 60 and 90 shore a is transferred to paint on the plate cylinder (p).through the use of a farbauftragswalze (f1, f2 and f3) of this type is a gleichmu00e4u00dfigerer painting on the plate cylinder, the blanket cylinder and from there to the train of the bedruckende allows.is more than a farbauftragswalze (f1, f2 and f3), is preferably at least in the direction of rotation of the plattenzylinders last farbauftragswalze (f3), a farbauftragswalze with a hard outer layer (21) of an elastomer.a further aspect of the present invention is that the farbauftragswalzen (f1, f2 and f3) along its axial length of a convex form so that the diameter (d2) in the axial center is larger than the diameter (d1) at the ends of the farbauftragswalzen (f1, f2 od he f3), so that a proper contact between the farbauftragswalze (f1),f2 or f3) and the plate cylinder is ensured.