AIC 2010 Interim Meeting, Mar del Plata, Argentina Study and analysis of the consistency of the color from the piece of food to the virtual representation in the screen and in the packaging
Eng. Marcela ROJAS Department de Investigation and Development, Gutenberg
The objective of this work is to show the main results of the applied research project performed by Gutenberg in association with the Federaci贸n Gr谩fica Argentina (FAIGA), Uni贸n Industrial Argentina (UIA), with the support of the Consejo Federal de Ciencia y Tecnolog铆a (COFECYT).
Substrate Printing System Standards
Designer
Prepress
Screen,flexography,gravure offset,others
European standards,American standards,company standards
Press
Critical points which are dependent of the printing system
Parameterization programs Color conversion
Final file
Critical points which are independent of the printing system Color that the designer receives the images
Monitors ISO 12646:2008
Visualization ISO 3664:2009
Critical points which are dependent of the printing system ( prepress)
Critical points which are independent of the printing system (prepress)
The ripping file ISO 12647-1:2004 CTP plates ISO TS 10128:2009
Digital proof
ISO 12647-7:2007
Densitometers-spectrophotometers ISO 12647-1:2004,ISO 5-3 :2009 ISO 5-4:2009, ISO13655:2009
Printing process phase The critical points depending of the printing system are The ink, specified by the ISO 2648 regulations
The substrate which technical specifications are described in the ISO 12647 printing regulations.
Actor
Color object observedReproduction tool
Medium
Producer
Food
Physical sample
Publicist
Screen
Digital RGB
Photographer
Designer
Pre-press operator
Image in digital camera or screen RGB screen
Visual observation Visual comparison with pantone or with a real piece Color chart, spectrophotometer
Low High Medium
RGB digital
Contract Digital Proof
CMYK digital
Screen+rip+images etter
Digital: RGB
Proof printer Printer
Digital RGB
Tools most commonly Importance attributed to used for color the consistency of color measurement in all the workflowv
Photoshop information tool (info), pantone, spectrophotometer
Very high
Spectrodensitometer
Medium
Spectrodensitometer
Medium
None
Low
Digital: RGB Physical
Box - Production printing machine CMYK-Pantone Physical
Distribution
Packaging CMYK-Pantone Box - Box -
Buyer
High Physical: CMYK
Box - Food
Visual comparison Low
CONCLUSION There are several factors on each stage of the graphic workflow that may affect negatively the color consistency. In order to achieve the color consistency in the packaging of food, it is necessary that all the work chain operates in line with the working directives and objectives determined beforehand.