Painting computer color grading software

Computer toning is a kind of high-tech automatic toning process developed in recent years. The computerized paint mixing machine can change the complex and tedious color matching work into a fast, simple and accurate color mixing method, which greatly facilitates the color matching of automobile refinishing coatings, and has been widely used in the automotive refinishing coating industry at present.

1. Introduction to computer color matching theory

Computer color matching equipment is composed of visible light Spectrophotometer , electronic computer, color matching software, etc.

1. Visible light Spectrophotometer

It is composed of light source, monochromator, integrating sphere, photobridge Detector, data processor and other components. Its function is that the measured spectral reflectance curve of the coating can be used to calculate the tristimulus value of the coating color through the Kubelka-Munck color matching theory, and the color can be measured and adjusted by computer color matching software.

2. Color matching software

The color matching software is composed of color quality testing software, color matching software and other components. The main function is to establish and store the basic color database. When using, first determine the basic color and color masterbatch, and then input the spectral reflectance curve (that is, the absorption coefficient and scattering coefficient of different wavelengths) of each color masterbatch (related instrument: chromatograph), and then perform color matching according to the input data, and also That is to say, the newly purchased color matching software will not be able to match colors. You need to input the color number of the paint into the color matching system first, so that the color matching software can use the color number data you input for color matching. Therefore, the accuracy of computer color matching depends not only on the quality of color matching software, but more importantly, whether the input data is accurate and reliable.

2. The basic principle of computer color grading

In computer color grading, the computer is actually a large database of color paint formulas, which can store thousands of

The standard formula of the paint and the number (color number) of the color of the standard paint. Regardless of single-color paint digital or double-color paint digital, it can be input into the computer for the user to color. If you need to adjust a certain color of automobile topcoat, you can first input the color number into the computer, and the formula and dosage ratio of the topcoat with the color number can be displayed on the screen, and then adjust according to this data to obtain the surface color used. paint color.

3. Features of computer color correction

The characteristics of using computer color matching are as follows.

The color matching is accurate, the speed is high, and the efficiency is high, which saves time for the car topcoat repair and improves the repair quality of the topcoat. Using computer color matching requires a certain amount of color paint formulations and color numbers of various specifications and varieties. If the quantity and variety specifications are insufficient, it will be difficult to accurately mix the required color paints as required.

The quality of various digital paints purchased needs to be strictly guaranteed. If the quality is not good, the computer will definitely not be able to adjust the desired color.

The storage and placement of single-color paints should be placed according to the rules of color numbers to make them standardized and customized to prevent mistakes.

Paints without standard color numbers are not suitable for computer color mixing. (Related instrument: color matching software)