Abstract: In packing printing, the quality inspection of the printing products is crucial, directly relating to the quality. This paper mainly studies one of the three methods in quality detection of color printing——the use of chromaticity detection in packaging printing.
Due to unestablish a complete examination system of chromaticity detection, so the theory restricted largerly. So the paper, starting from the basic colorimetry, I analyse its principle and function as a test of the quality of colour printing color measurement,then it expounds the influence factors affecting the color generation of printing products , and by designing a concrete experiment to test the function of chromaticity detection in packing printing.
As spectrophotometer is the most reasonable color measurement instrument bears responsibility in this experiment, under the standardization of the lighting and observation, include chromaticity detection in the same ink under different paper performance and in the same paper performance under ink. In the simulation experiments exclude some difficult to eliminate the influent factors in actual printing, analyse datas under the two controllable factors—— ink and paper to color compensation, finds the factors to experimental data and summarizes the significance in the practical production process, enable to have a complete theory in colorimeter and plays a role in standardization.
Keywords：chromatism; chromaticity detection; spectrophotometer; packing
printing;
