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Landa  Nanography

The undoubted star of Drupa 2012 were the Landa Digital Printing’s, Nanography presses. Benny Landa was the founder of Indigo, now owned by HP. Landa Corporation was set up in 2002 focusing on Nanotechnology projects in various fields and so Landa Digital Printing was born.

Nanography refers to the nano-sized pigments used in the aqueous based ink. The ink itself comes as a concentrate and is diluted with water that is filtered and deionised in the press.

In the imaging process the ink is jetted via a Kyocera drop on demand inkjet system onto a heated rubber belt and once dried transferred to the paper or synthetic substrate.

At Drupa 6 versions of the press were shown; 3 web-fed and 3 sheet feed as follows –

1. Landa W5 – a 200 m/min simplex press for labels, shrink sleeves, paper and plastics reels up to 560mm wide
2. Landa W10 – a 200 m/min simplex press for plastic and foil reels up to 1020mm wide
3. Landa W50 – a 200 m/min duplex press for standard papers up to 560mm wide
4. Landa S5 – a B3 sheet-fed 366 ppm duplex press
5. Landa S7 – a B2 sheet-fed 800 ppm duplex press
6. Landa S10 – a B1 sheet-fed 1733 ppm duplex press – 2 versions one for paper the other for carton board

All these models are built in collaboration with Komori and are based on their paper transport systems and can run 4 to 8 colours (CMYK and special colours). All of the presses feature a giant front panel touch screen control system to make them easy to use.

Landa are making some claims for this technology as follows :

Fastest digital press – B1 sheet press claiming up to 1700 ppm speed !
Highest quality – Landa are claiming that the press will achieved offset quality when it goes to market at the end of 2013. One of the features of Nanoink is that it has remarkable light absorbing properties meaning that the inks should achieve a very wide colour gamut. The printing dots should be extremely sharp because the particles are very small.
Lowest cost per page for a digital press – no cost per page figures have been released yet but this is claimed because the ink film to achieve a high density colour is only 500 nm thick meaning far less ink is required compared to other digital, or indeed, offset printing.
100% environmentally friendly – Landa base this claim on several features of the system; the ink is a concentrate and so little water is transported, the ink film is very thin so only a very small quantity of it is consumed and although the belt is heated the energy required to do this is much less than a fusing system in a dry toner press.
Works on any substrate – this is a feature of the Nanoink. The ink is described as a tough polymeric film and akin to a hot melt adhesive.
The ink film is tough and is scratch and abrasion resistant. This is a key feature of the Nanoink.

Written by Richard Saunders (Intertek)
Non contractual picture