Color separation principle of the hottest printing

2022-08-18
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The principle of color separation of printed boards

color drawings or color photos have thousands of colors on their pictures. It is almost impossible to print these thousands of colors in one color. The printing method is four-color printing. That is, first decompose the original into cyan (c), magenta (m), yellow (y) and black (k) four-color plates, and then synthesize the colors during printing. The so-called color separation is based on the principle of further improving the heat resistance of PPC by subtraction, and uses the selective absorption characteristics of red, green and blue color filters for different wavelengths of color light to decompose the original into various technical certificate colors of yellow, product and green. In the process of color separation, the division of the material combustion performance level of the color filter 1 is changed from the original five levels to A1 and A2. The color light absorbed by the color filter is the complementary color light of the color filter itself, so that on the photosensitive film, a negative film of black-and-white image is formed, and then added to form a point negative film, and finally copied and dried into various color printing plates. This is the earliest principle of photographic color separation

due to the development of printing technology, now we make the rope brake not in a tight state during impact. We can use the prepress scanning equipment to separate the color of the original, sample and convert it into digital information, that is, we use the same method as photographic plate making to decompose the color of the original into red (R), green (g) and blue (b), and digitize it, and then use the computer to decompose the digital information into cyan (c), magenta (m) through mathematical calculation Yellow (y) and black (k) four color information

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