Method and apparatus for controlling ink film thickness
US5988067A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 15, 1998 |
| Grant date | Nov 23, 1999 |
| Priority date | — |
| Expiry date | Dec 15, 2018 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41P2233/11
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
In an ink film thickness control method, second ink film thickness distribution, corresponding to an image on an old printing plate, on a minimum first ink film thickness distribution formed on the surface of an ink roller group and required during printing, is removed for a predetermined one of printing units thereby leaving the first ink film thickness distribution. Which one of pre-inking I mode and pre-inking II mode is to be performed is set for each printing unit. The minimum first ink film thickness distribution required during printing is formed on the surface of the ink roller group of the printing unit set in the pre-inking I mode after a new printing plate is mounted in the printing unit set in the pre-inking I mode. The second ink film thickness distribution corresponding to the image of the new printing plate is superposed on the first ink film thickness distribution. For the printing unit set in the pre-inking II mode, the second ink film thickness distribution is formed simultaneously on the first ink film thickness distribution which has already been formed. An ink film thickness control apparatus is also disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.