Process and device for inking an engraved printing plate from an ink tank
AssigneePRINTING INTERNATIONAL N.V., a corporation of Belgium
InventorLaurent De Volder
Life of this patent
Estimating the term…
Abstract
The invention concerns a process for inking an engraved printing plate from an ink tank and for scraping off the ink in dab printing, characterised in that a doctor blade (8) is used, of which at least the bottom edge, which comes into contact with the printing plate (9), is adjusted with respect to the printing plate (9) at a negative angle, measured with respect to the portion of the printing plate that is inked and to be scraped off.
Claims21
Process for inking an engraved printing plate from an ink tank and for scraping off the ink in dab printing, characterised in that a doctor blade is used, of which at least the bottom edge, which comes into contact with the printing plate, is adjusted with respect to the printing plate at a negative angle, measured with respect to the portion of the printing plate which is inked and to be scraped off, and without changing the position of the doctor blade, a relative moving of the doctor blade with respect to the printing plate is generated, on the one hand, in a direction to ink the printing plate, and on the other hand, in the other direction, to scrape off the ink from the printing plate.
Device for inking a printing plate and for scraping off the ink in dab printing, characterised in that it consists of the combination of:
- a) an ink tank for the inking of a printing plate during a relative moving of the printing plate with respect to this ink tank, and of
- b) at least one doctor blade, of which the bottom edge, which comes into contact with the printing plate, is adjusted at a negative angle with respect to the printing plate, whereby an angle is meant that is measured with respect to the portion of the printing plate that has been inked and must yet be scraped off.
Dependencies are inferred from the claim text.