A Study On Computer Ink Matching Color Baseon Spot-color Ink Printing In Packaging Printing

Printing at the surface of product packaging is one of important parts of product packaging. Quality of color printing play an important role in product sales. Ink's hue is one of key indicators which affect product quality. For this reason, deployment of ink becomes important processes in packaging printing. In today, packaging printing industry develops very rapid. The extent of demand on printing color reproduction is getting higher and higher. Traditional printing depend on four-color overprint, which can no longer meet the needs of market development. But spot-color ink can copy out a wider ranger of colors, better display products rich in color than four-color overprint. So spot-color ink is user more and more in the field of printing and packaging. So deployment of spot-color ink becomes one of important parts of product packaging. At present, most domestic match color by hand. It requires not only experienced operators, but also time-consuming process with the Mexican long, easy to waste material. This experience has often been matching color from physical, psychological factors and other objective conditions, difficult to maintain the stability of product qualityIn order to overcome the artificial color caused by the above shortcomings, this paper presents a method based on tristimulus values of the spot-color ink color computer methods, and establish a set of color in small, fast, closer spectral characteristics, by man-made factors affecting small quantity Mexico accurate, and can take full advantage of the remaining ink, given the way the application of a variety of spot-color printing ink formulations. In order to reduce the matching time, reduce costs and improve the efficiency of color to overcome the many artificial color caused by human factors, for printing companies to provide a scientific and accurate color matching method. Based on GretagMacbeth ink formulation software t, reference to Pantone basic color we selected China Hangzhou 10 kinds of basic color ink to deploy different concentrations of ink. And then measure the L, a, b values. Based on tristimulus values color ink database model and take advantage of ink formulation software we complete the experimental formula. Compared with the enterprise empirical data, come to the conclusion...