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Flexographic Printing

What is Possible

Charta can reproduce very sophisticated design requirement for your brand:

  • From one to six colours
  • Colour accuracy
  • CMYK process
  • Photographic or illustrated graphics
  • Intricate graphic detail
  • Solid colours and fine screens
  • Metallic inks
  • Over-gloss
  • Die-cutting

In the Showroom section of this website is a range of printed examples and in Printing Potential a series of illustrated models explain the finer points of quality printing possibilities.

The Printing Process

Corrugated board, by its construction, has 'give' when pressure, such as from printing plates, is applied. The flexographic process is designed to enable printing without crushing the corrugated board. (This is unlike other methods of printing where the single sheet of paper passes between two rollers, under high contact pressure, one of which applies the ink.)

Flexographic plates are made from rubber or a polymer material and are flexible. The surface is engraved or etched so the areas which carry the ink are higher - like a rubber stamp. The inked surface delicately contacts the print surface to lay down the colours.

The high relief plate surfaces, being flexible, compress slightly on contact and leave slight traces of colour beyond the defined print area. Our new printer technology and carefully maintained printers ensure this effect is negligible. What this does mean however is that artwork must be prepared to suit the process.

The printing of one and up to six colours, the application of over-gloss and the final die-cutting step are all done in one pass on the machine. This ensures very tight registration for each.