Pigment subtraction method to make your Folding Paper Boxes For Wine richer in color

Pigment subtraction method to make your Folding Paper Boxes For Wine richer in color

In printing, printers need to work with inks of various colors, which come in a wide variety of colors. But despite this, there are still many colors that need to be obtained by mixing multiple color inks. Here, the color mixing method is used. One of the very important ones is the color subtraction method.

Subtractive color method

Let's first analyze the color principles of cyan (C), magenta (M), and yellow (Y).

White light - red light = cyan (C)

White light - green light = magenta (M)

White light - blue light = yellow (Y)

That is, under white light, cyan pigments can absorb red and reflect cyan, yellow pigments can absorb blue and reflect yellow, and magenta pigments can absorb green and reflect magenta.

In addition, if the two pigments of qinse and yellow are mixed, under the illumination of white light, because the mixed pigment absorbs red and blue and reflects green, the mixed pigment appears green, and the color mixing of the other two pigments is the same. which is:

Cyan pigment + yellow pigment = white - red - blue = green

Yellow Pigment + Magenta Pigment = White - Blue - Green = Red

Magenta Pigment + Cyan Pigment = White - Green - Red = Blue

It can be seen that the above are all subtractive color mixing, that is, different colors prepared by absorbing the different proportions of the three primary colors. Therefore, the three colors of cyan (C), magenta (M), and yellow (Y) are called the three primary colors of colorants, and they are also the three primary colors of ink in printing.

Theoretically speaking, when the same amount of C, M, Y three kinds of pigments are mixed, the color should show a grayscale gradient from white to black as the percentage of ink increases at the same time, which is the most basic color of the subtractive color method. changing laws.

C+M+ Y=black (white light-green light-blue light-red light)

But in fact, because the ink contains impurities, there are problems such as the difference in density and reflectivity, this ideal state does not exist, so to make the CMY appear neutral gray after mixing, it is necessary to choose the appropriate percentage ratio.

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