We recently had the pleasure of printing an awesome whiskey label for a wonderful distillery located right here in Boston. Based on the quantity, and the high quality output needed, this was an ideal label for our HP Indigo. The labels are printed on estate paper, with the front and back label on the same roll, repeating. The challenge we faced is that in order to perfectly color match, we had to use a spot color.
Typical digital printing consists of using cyan, magenta, yellow and black to create a wide spectrum of colors. For most jobs, CMYK printing works beautifully, but for some jobs, the color needed is outside the traditional CMYK gamut. When this happens, we have to incorporate a spot color into the process. Since our press is a seven color press, and we only have five colors installed year-round (cyan, magenta, yellow, black and white), we have the ability to install a spot color in addition to the normal CMYK (and white) setup.
For this particular job, we installed reflex blue as our sixth color. If we tried to run this job with just CMYK, it would either be navy blue or a deep purple. There would be no way to create the bright blue you see. By installing the spot color, we are able to get the color right on the front label, but still take advantage of digital technology.
When creating your artwork for digital print, it is good to keep in mind what colors might fall out of the typical digital setup and how that could effect the output. Bright blues, greens, and purples can be harder to match without the use of a spot color. When a spot color is used, the rich output can be unmatched!