Color matching method for solving spot color printing ink in package printing

Abstract

The invention discloses a color matching method for solving spot color printing ink in package printing. Different colors of printing ink samples produced by each printing ink factory are collected firstly, a common printing substrate is selected, and a reducer is added into the different colors of printing ink samples to dilute as the printing ink color paste. A printing ink proofer is used for displaying the sample of the color bar, the spot color ink matching software is used for controlling a spectral density instrument to collect the color density of the displayed color sample, and then the color density data is stored, the color density database is established. A computer is used for operating the spot color ink matching software to detect the tested color sample through cooperating with the spectral density instrument, the density data of the tested color sample is fed back to the spot color ink matching software, the spot color ink matching software is used for automatically calculating and screening the nearest tested color sample formula and formula proportion in the stored color density database, and then the formula and formula proportion are saved as the color sample formula file database by the computer. The method is capable of effectively improving the efficiency of ink matching, accurately matching, saving the printing ink, improving the production efficiency and the like.

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.