Computer-to-plate (CtP) has been one of the greatest technology innovations in the graphic communications industry, enabling faster reproduction of printing plates while significantly reducing costs and waste. Prior to CtP, the practice of remaking plates with film was extremely time consuming due to having to match critical jobs while adjusting dot gains. With today’s technology, prepress managers simply adjust plate curves to achieve the optimal results with fewer remakes of plates.
While printers used to achieve color by adjusting densities up or down on press, innovation has brought us to the G7 method of printing:
What is G7?
According to IdeaAlliance, G7® is both a definition of grayscale appearance, and a calibration method for adjusting any CMYK imaging device to simulate the G7 grayscale definition. G7 yields a visual match between different imaging systems using simple 1-dimensional curves, and enables shared appearance between different printing devices or specifications when additional color management is not available.
Through IdeaAlliance, there are a number of certification programs designed to evaluate a system’s ability to calibrate on the G7 scale. To ensure brand uniformity across a variety of print projects, many print buyers now are making G7 a critical buying requirement.
Color is defined by a spectral value based on L*a*b* readings. Software such as Heidelberg’s Image Control, Inpress Control and/or Axis Control help to translate L*a*b* values to density values that later materialize to color on the sheet.
Having the right peak performance consumables is an essential part of G7 and color management. The ink on press must achieve specific ISO 12647-2 standards of color for printers to achieve G7 certification. The proper blankets and fountain solution are also critical in printing G7 specifications, and Heidelberg offers a wide array of additional consumables to fit every need and requirement.
We have all experienced this before:
You’re booked solid. One of your customers calls in a job for immediate delivery. Your prepress department comes through with imaged plates within minutes only to watch your press operators struggle with excessive makeready sheets while trying to match a proof. You adjust the density up and down to match color, while your profit diminishes due to makeready waste.
A Better Way
In moments like these, it becomes apparent that a consumables partner is required. One who can deliver customized, technical solutions as well as G7 color management. As a leading manufacturer of equipment, we also provide high performance consumables that work together with each other to achieve shorter makereadies and minimize waste, resulting in the lowest cost of production achievable. We are not simply a vendor, but a full solutions provider with a multi-faceted understanding of print applications coupled with unrivaled engineering expertise. We guide you through the entire production process — ensuring ongoing efficiency and operational excellence.
Heidelberg can help you achieve your G7 certification with peak performance Saphira consumables. Our products enable your production team to quickly achieve color on press with fewer makeready sheets and minimal reprints by adjusting plate curves and creating custom International Color Consortium (ICC) profiles. Obtaining G7 Master status lets your customers know that you care about color and adhere to today’s high standards of quality and consistency.
To learn how Saphira consumables has helped eDOC Communications gain stability in a G7 environment, click here. For more information, please contact your local Heidelberg representative.