English to Russian Tech/Engineering Computers: Hardware нанография

The Nanographic Printing process

The Nanographic Printing process begins with the jetting of billions of droplets.
However the droplets are not ejected directly onto the substrate as they are in the traditional inkjet process.
Instead, they are ejected onto a blanket from ink ejectors that are mounted on print bars, onto a blanket positioned 1-2 mm away.
Each print bar prints a specific color.
Landa Nanographic Printing Presses are equipped with eight print bars (Fig. 2) and are therefore capable of printing up to eight different colors simultaneously.
Furthermore, the eight print bars can be employed for both CMYK, spot or specialty colors such as white.
The eight print bar configuration allows having two color bars for each color, which in combination with doubling the paper handling system speed, allows doubling the productivity while maintaining the print quality.
Fig 2.
A schematic perspective view of a Landa Nanographic Printing™ press.
The ink drop ejection onto the blanket is precisely timed to obtain very high accuracy between print separations and achieve high color plane registration.
As each ink droplet lands on the heated blanket, it spreads and very quickly loses its water, becoming thinner as it does so.
When all of its water has been evaporated, the ink becomes an ultra-thin, dry polymeric film on the blanket (Fig. 3).
Fig 3.
Ink droplets interacting with the blanket following impact and carrier evaporation (illustration).
When pressed into contact with the printing substrate upon transfer, this thin 500 nm layer of ink instantaneously bonds tenaciously to the substrate without penetrating it (Fig. 4).
The formed images are tough, abrasion resistant and do not need any kind of post-drying and leave no residual ink remaining on the blanket.
So two-sided printing becomes simple – and the printed output can immediately be processed, even on the most aggressive finishing equipment, right off the press.