Topic of your interest

Graphich depiction of a Paper sample under two different light sources (with and without UV)

Matching conditions for the LED-dominated lighting environment in the print and media industry

Short name: D50noUV

Fogra no. 13.009
Project leader: D. Saric (Fogra)
Funding: BMWK (IGF) via DLR

Timescale: 01.03.2024 - 28.02.2026

Objectives and Relevance

The colour specification in all colour related  industries is D65 or D50 including the respective UV component. Colour communication in the predominantly small and medium-sized printing industry has achieved excellent consistency between reference and reproduction for years with D50-based color measurement (M1, ISO 13655) and D50-based matching (P1, ISO 3664). This also applies to surfaces without optical brighteners that do not react to the UV component in the measuring and observation light. The global switch from fluorescent tubes to UV-free LED technology in general lighting is currently changing the way colour communication is performed in a quality previously unknown. As a result, fluorescent materials, such as many graphic papers with optical brighteners, are significantly less stimulated and therefore appear different indoors than specified. The upcoming standardization of another appraisal illumination in addition to D50 without UV content (D50noUV) poses many challenges for the entire production process. Both small agencies and publishers as well as print service providers in commercial, packaging and industrial printing are faced with the question of how they can change or adapt their standard lights, viewing booths, measuring devices, workflow settings and quality specifications in a timely manner.

Solution Steps

This project aims to develop the necessary tools and working aids for dealing with the new lighting environment (D50noUV). The aim here is to develop a practical, internationally consensus-based and objective evaluation system for D50noUV. The influence of lighting without UV content on the colour effect leads to adjustments both in the data preparation of new print jobs and in existing D50-based workflows. The second focus is therefore on developing the necessary colour matching strategies that achieve the best possible implementation of the original colour intention.

Donatela Saric

Prepress Technology

+49 89 431 82 - 311

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The results of this research project were presented in an extensive report. We will develop a method to assess the apparent UV amount practically.

Publications & intermediate findings

You want to contribute?

TitleVersionDateFile typeDownload
A_Way1_Instructions 25.04.2024 pdf Download
B_Way2_Instructions 25.04.2024 pdf Download
C_Way3_instructions 25.04.2024 pdf Download

Meeting Slides

TitleVersionDateFile typeDownload
Project Presentation 13.009 D50noUV 03.04.2024 pdf Download