A solution to the color matching method of spot color ink in packaging printing

Abstract

The invention discloses a method for solving the color matching of spot color inks in packaging printing. Firstly, samples of ink types of different colors produced by various ink manufacturers are collected, a general printing substrate is selected, and the ink types of different colors are diluted with diluents to form inks. Color paste, use the ink color development instrument to develop the sample of the color bar, and the spot color ink color matching software controls the spectrophotometer to collect the color density of the developed color sample, then stores the color density data, establishes the color density color library, and uses the computer to operate the special The color ink matching software cooperates with the spectrophotometer to detect the tested color, and the density data of the tested color is fed back to the spot color ink matching software, and the spot color ink matching software automatically calculates and screens in the stored color density library Get the color formula and formula ratio closest to the test, and then save the formula and formula ratio with the computer to form a color formula document database; this method can effectively improve the efficiency of ink distribution, accurate preparation, save ink, improve production efficiency, etc. .

Description

technical field [0001] The invention relates to a color matching method of printing ink, in particular to a color matching method of spot color ink in packaging printing. Background technique [0002] There are three commonly used methods for printing ink color matching. Printing ink color matching is an important task before printing. Only by using scientific and rigorous color matching methods can the ideal printing effect be achieved. [0003] 1. Empirical color matching method [0004] The empirical color matching method refers to the color matching based on the experience and feeling of the color matcher without a color measuring instrument. The early stage is based on the experience accumulated by the color matcher from practice, and the color matching in the middle and late stages is based on 10 basic color maps. Or printed color spectrum as a reference standard for visual color measurement. The empirical color matching method is often affected by the physiological ...

AI Technical Summary

Problems solved by technology

[0008] Computer color matching has a history of about 30 years abroad, and it has been used in many color-using departments at home and abroad. People use the connection between the color database stored in the computer and the relevant color matching software to analyze and process the color data on the sample. , through calculation, correction, and color matching, select the color formula that suits the requirements of the sample, and then complete the automatic color matching of the ink. Accuracy and uniformity, and greatly save color matching time. Convenience, speed, speed, and accuracy are the advantages of computer color matching. However, the color matching software developed by different companies and companies is based on their actual production and application conditions. It was developed on the basis of computer technology, and there is no unified standard, which is one of the reasons why computer color matching cannot be popularized.