Color matching is a complex, detailed and important work. In addition to basic knowledge of color and keen color discrimination ability, proofing personnel should also master the basic principles and rules of color matching, and pay attention to the continuous accumulation of proofing materials and experience.
1. Color matching principle
Color matching is based on the principle of “subtractive” color mixing. In practical applications, because the ideal three primary colors cannot be found, red, yellow, and blue are often used as substitute primary colors (also called primary colors). If you mix two different primary colors, you can get secondary colors such as orange, green, and purple; if you mix two different secondary colors, or mix any primary color with gray, you can get tertiary colors. . The color matching results are as follows:
2. Color matching Basic Principles
The color matching process is relatively complicated. In order to achieve the desired effect of color matching and be fast, accurate and economical, the following principles should be followed:
1. The principle of “similarity”
means that the dyeing properties of color-matching dyes should be as similar as possible. The dyeing properties of dyes include affinity, dyeing rate, dyeing temperature, level dyeing, dyeing fastness, etc. When color matching, you should try to choose dyes from the same application category and subcategory. Otherwise, it will be difficult to formulate the dyeing process, and due to poor compatibility of the dyes, it will be difficult to control the color and light, and the leveling properties will be poor. The three primary colors among various types of dyes are often selected dyes with excellent application performance and good compatibility, so they should be given priority when color matching.
2. The “small amount” principle
refers to when color matching ( Especially for bright colors), the number of dyes should be as small as possible, generally not more than 3, so as to facilitate color adjustment and control. At the same time, the components of color-matching dyes (referring to mixed dyes) should be understood, and try to use the original components. The dyes are used to supplement or adjust the color light to reduce the number of dyes used, ensure the brightness of the color, and reduce the mutual conflict between dyes.
3. “Fine-tuning” principle
Color and light adjustment is based on ” “Remaining color” is the theoretical basis. Therefore, the principle of residual color can only be used to adjust the color in a trace amount. If the amount is slightly more, the color will become darker, affecting the brightness, and in severe cases, the hue.
4. “Nearest selection” and “one complements two” principles
When color matching, whether it is the main color or the auxiliary color dye, or the dye used to adjust the color light, the dye closest to the target color should be selected, which is called the “nearest selection” principle. At the same time, we should try our best to use one dye to obtain two or more effects, which is called the principle of “one complements two”.
If you want to use emerald green, if possible, you should choose the green dye that is closest to emerald green, and then select the appropriate dye to adjust the color as needed. You can also choose to mix emerald blue (i.e. green light blue) and tender yellow (i.e. green light yellow).
Another example is to combine red light with blue light. Try not to use “blue + red”. You should choose a color similar to blue (purple) to supplement the red light to achieve “nearby supplementation”. “This makes the color matching operation more convenient and economical. </p
