Back to results
US 6,971,312 B2Granted
Doctor blade device
AssigneeMAN Roland Druckmaschinen AG
InventorsWolfgang Bayer, Andreas Berchtold, Thomas Böck, Robert Konrad, Harald Lesti, Xaver Bachmeir
Life of this patent
Estimating the term…
Abstract
A doctor blade device for the removal of dampening medium from a soft surface of an ink applicator roller in the inking unit of a printing machine, having at least one doctor blade placed against the surface of the roller and having an edge radius in the range of 2 mm to 10 mm.
Claims4
A printing arrangement comprising:
- a plate cylinder;
- an ink applicator roller having a soft surface for carrying a layer of ink and a layer of dampening medium, said applicator roller contacting said plate cylinder and picking up dampening medium at a nip;
- and
- a doctor blade having an edge contacting said soft surface of said ink applicator roller downstream of said nip, said doctor blade being configured to remove said layer of dampening medium from said soft surface without removing a residual layer of ink adhered to said soft surface, said edge having an edge radius in the range of 2 mm to 10 mm.
1 more element
Dependencies are inferred from the claim text.