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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.