Research on Color Matching and Reproduction on Aluminum Foil Packaging Materials

The effects of aluminum foil packaging materials on color reproduction were mainly studied from the following two aspects in this topic: (1) through the study of CIEl976 chroma space, color difference evaluations of 7 kinds of colors for aluminum foil were compared with that of coated paper, based on the established color libraries of coated paper. (2) Four different spectrophotometers of X-Rite were used to measure L*、 a*、 b* of different colors, analyzing the effects of different spectrophotometer on color reproduction. Research has proved that: (1) the method which color was transferred to the aluminum foil, according to the established color libraries of coated paper, is feasible, and there was no difference between two colors on aluminum foils by visual inspection, the chromatic aberration was less than 1. (2) From the measurements, aspheric photometers like X-Rite939, Spectroeye, X-Rite500 cannot be used for color measurement on aluminum foil, the error is bigger than SP64, and accuracy is lower. (3) Through the total color difference analysis of four instruments on magenta, the ball SP64 portable spectrophotometer is the most suitable equipment for color reproduction on aluminum foil packaging materials.