Abhay Sharma

Evaluation of commercial expanded gamut printing systems in terms of spot color reproduction and printing properties

Abhay Sharma, Ryerson University

This expanded gamut study will demonstrate the effectiveness of printing with CMYK-OGV colorants and hence it will seek to promote the adoption of expanded gamut printing especially as a replacement for spot color inks. The benefits of expanded gamut printing include an expanded print gamut, using 7 “process” colors instead of spot colors, ability to gang jobs, less ink changes on press and washups, environmentally friendly solutions and better accuracy on press.

Today there are many hardware and software solutions readily available, for example the aptly named Kodak Spotless or CGS ORIS X Gamut. There are digital print solutions available such as HP Indigo 7900 and inkjet proofing solutions – Epson SureColor P9000. The PANTONE EXTENDED GAMUT Guide was printed with 7 colors using offset lithography.

Change, including implementation of a new technology, is a challenge for many printers. This study seeks, via practical testing of commercially available systems, to demonstrate the efficacy of CMYK-OGV printing, and thereby enable more users to save time and money and enjoy the benefits of this emerging print technology. Increased adoption of expanded gamut printing can revolutionize all areas of package printing and conventional printing.

Often end users may be wary of a new technology and also unable to distinguish between marketing hype and true colorimetric printing benefits. This study will show that there are real technical, measurable benefits, to expanded gamut printing.