Abstract
Because the model of flexographic spot-color matching based on Kubelka–Munk theory is proposed for the dye matching, it will produce color difference and affect color accuracy when it is applied to the ink matching. In this paper, the model of computer color matching based on double-constant Kubelka–Munk theory is improved. The model of flexographic spot-color matching in which the water-based ink is used as printing ink and corrugated paper is used as substrate is formed. In this model, first the sample data are obtained by using IGT printability tester. Then, tristimulus value matching theory is its basic, and a series of mathematical calculations are used to obtain the initial matching values. And then, a more accurate formula is obtained through multiple iterations. Finally, the improved matching model is completed. The experimental results show that the model can quickly complete the color matching, and the result is accurate and stable. Moreover, the matching model meets the requirements of environmental protection and has good prospects.
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