Basic knowledge of paint coloring

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The mixed color of the paint follows a subtractive color principle. Its three primary colors are yellow, cyan, and purple, and their complementary colors are blue, red, and green. The so-called complementary color, that is, two kinds of color light are mixed in a certain proportion to obtain white color light, the red complementary color is cyan, the yellow complementary color is blue, and the green complementary color is purple. The results of subtractive color mixing are summarized as follows:

Yellow = white - blue

Purple = white - green

Cyan = white - red

Yellow + purple = white - blue - green = red

Yellow + cyan = white - blue - red = green

Purple + Cyan = White - Green - Red = Blue

Yellow + purple + cyan = white - blue - green - red = black

These relationships indicate the relationship in which the pigments are added in sequence, and the color obtained after mixing has a reduced brightness.

The paint coloring technology mainly includes solid color paint coloring, transparent paint coloring, etc., usually before the color formula is formulated, according to the color template or the color of a certain object.

First, understand the hue range, which consists of several colors, which is the main color, which is the secondary color, and the relationship between color and color, and the proportion of each;

Secondly, according to the experience, the color formula is preliminarily developed, and then the sample is adjusted. When coloring, the main color is added first, and then the color with stronger coloring power is added as a vice, and the mixture is slowly and intermittently stirred and continuously stirred. Always observe the change of color, sample, wipe, spray or dipped on a clean sample board. After the color is stable, compare it with the original sample. The principle of “from shallow to deep” must be mastered during the whole coloring process.

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