Naslov
Ral system reliability

Autori
Parac-Osterman, Đurđica ; Šimić, Vidosava ; Hunjet, Anica ; Joanelli, Martina

Vrsta, podvrsta i kategorija rada
Radovi u zbornicima skupova, cjeloviti rad (in extenso), znanstveni

Izvornik
AIC COLOR 2002 SI, Color & textiles : Book of Proceedings / Golob, Vera ; Jeler, Slava ; Stjepanovič, Zoran - Maribor : SCA - Slovenian colorists assoaciation, Maribor, Slovenija, 2002, 320-326

Skup
AIC COLOR 2002 SI Color & textiles

Mjesto i datum
Maribor, Slovenija, 29.08.2002. - 31.08.2002

Vrsta sudjelovanja
Poster

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
RAL ; reliability ; CIE L*a*b* ; statistic

Sažetak
In all technological branches that employs colour management and colour communication system, RAL colour system is used as mean of simple and quick choice and comparisement of desired colour. However, practice proved RAL system as unsuitable in a processes of reproduction in comparison with visual evaluation as well as instrumental CIELab evaluation. In this paper, reliability and suitability of RAL system was analysed by means of statistical evaluations and compared to computer based CIELab system. Three groups of hue samples were chosen: H* 080 – 090 (yellow), H* 350 – 360 (red), H* 200 – 210 (blue). Analysis were made based on Y tristimulus value that define true lightness value of one coloured surface. L*, C* and H* colour values were calculated as well as dE value and statistical evaluation was performed according to “ t” and “ F” statistical test. Results obtained showed disagreement of RAL system in compare with CIELab system in the area of yellow and blue hues. This confirm lower reliability of RAL system for hues mentioned than for the are of red hues.

Izvorni jezik
Engleski

Znanstvena područja
Tekstilna tehnologija

POVEZANOST RADA