①The residual ink is converted into gray black ink

According to the principle of color science, the complementary color of the ink mixed together, its hue will become gray black (red + green, yellow + blue-purple). Therefore, we can use this principle to deploy the complementary ink into gray-black ink by deploying the special color ink, and add it to the black ink in a certain proportion to use it as black ink. In the operation, it is necessary to note that even the remaining oil belongs to the deployment of spot color ink, so there will be a certain color bias, and at this time, the complementary color of the biased color should be added according to the color bias. This method is not suitable for the conversion of light-colored ink, and should consider the composition of the ink, in accordance with the principle of similar mixing reasonable use.

②The residual ink is converted into a similar color ink

The color of the ink can be divided into gray, black, white, magenta, red, yellow, green, blue, blue, purple, etc., and other colors can be changed from these basic colors. Therefore, even if there are thousands of products, countless colors, can be classified according to the basic hue. Moreover, there are many similar colors in many colors, and even the color is basically the same. Water-soluble and solvent-based inks, in particular, are more suitable for this method because of their convenient mixing and easy filtration.

③Conversion according to ink formula

First of all, we must unify the form of ink formula, preferably in percentage form. Because the percentage formula is used, it is more helpful to compare the formulations, so as to find the correlation of ink color, and can easily identify the degree of color deviation between different formulations of ink to determine whether it can be converted to each other. Using this method, we need to do a good job of sorting, classifying and archiving the formula, so that it is more convenient to find the ink formula of similar hue in use

④According to the ink color card conversion

This scheme is generally used for the conversion of ink with unknown ink formula, and the ink color card can be made by scraping or printing in order to analyze the composition of the ink. It can also find similar colors of ink according to the color of the ink color card, so that the remaining ink is converted into the corresponding color of ink according to the allocation method of the special color ink. The method of using residual ink conversion seems easy, but it requires the operator to have rich knowledge of color science and use it flexibly. Printing houses should usually pay attention to the establishment of ink formula, color cards and corresponding identification files, so as to quickly and accurately use the remaining ink, thereby reducing ink loss, reducing waste, and saving costs.

Sinograce Chemical has the production of a variety of ink water-based resin, welcome to consult.