At present, the color matching technology of PVC film is seldom introduced. PVC wood-grain film technology books also pass by. Most of the color matching of PVC manufacturers is based on experience. It is difficult to correct and adjust the color difference by trial-and-error visual color matching. Sometimes the quality of the colorant changes. Although there are many kinds of colors, there are only a few for the coloring of PVC film. How to use the limited coloring pigments to prepare a variety of color PVC film? As a color matching designer, first of all, we should understand the principle of color matching and adopt appropriate methods to achieve the designed color. The color matching of PVC can be mixed by three basic colors: red, yellow and blue. You can get all the colors you need. We can consider all kinds of colours as red, yellow and blue, which are mixed in proportion. The three primary colours are as follows:

We call red, yellow and blue three primary colours or primary colours. By blending any of the three primary colors of red, yellow and blue, we can get other different colors. If red and yellow are mixed, orange, yellow and blue are mixed, and green is obtained. [But in practice, the colouring power of the colouring agents we use may be very different, so there is a great difference in the proportion of quantity]. If the two colors are mixed in different proportions, more tones can be obtained. These colours are collectively referred to as intermediate or secondary colours. If the primary or secondary colours of different colours are blended with each other, then the secondary or tertiary colours are called. For example, when orange and green are mixed together, olive, green and purple will be mixed together, resulting in grey, while secondary orange and secondary purple will be brown. If arranged in three primary colors and two secondary colors, a triangular mosaic is drawn. Get a lot of ternary colors. As shown in the picture:

At the same time, on the basis of primary or intermediate colors, some white can be added to make light colors such as pink and light blue. If appropriate amount of carbon black is added, brown, dark green, coffee and other lightness colors can be blended. It should be pointed out that by the red, yellow and blue three basic colorants "equal amount" match, unexpectedly get dark color! Black color can be said to be a special example of cubic color.