Ink and ink color formula
According to customer requirements, the inks of different printing machines can be divided into two types. One is that the ink needs to be diluted with gasoline or thinner when it is working, and the other is that the environmentally friendly ink is diluted with water when it is less irritating. Lighter, more demanding products need to be printed with ink.
1. The three primary colors of yellow, magenta and cyan in the ink are the three primary colors of the ink. In principle, through the deployment of different proportions, different hue colors can be obtained to meet the needs of printing operations.
The three primary colors of the ink are used. According to the principle of color subtractive method, the following rules are adopted:
① When the two primary color inks are mixed, if the mixing ratio is equal, the standard intercolor can be obtained; if the mixing ratios are not equal, the intercolor of various hue is obtained, and the hue is biased to the larger ratio.
② When the two primary inks are mixed in equal amounts, white ink is added to make the hue bright and vivid; black ink is added to make it dark.
③ When the three primary color inks are mixed, if the mixing ratio is equal, approximate black can be obtained; if the mixing ratios are not equal, the inter-color or multi-color of different hue can be obtained, and the hue is biased to the larger ratio.
④ When the three primary color inks are mixed in equal amounts, different proportions of white ink are added to obtain light gray inks of different tones.
2. The method of blending two kinds of primary color inks in equal amounts is called blending of color inks. The intermediate color is also called secondary color, and its color is darker than the original color.
The mixing rule of inter-color ink is:
Yellow + Magenta = Red [(WB) + (WG) = (2W-GB)]
Magenta + Cyan = Blue [(WG) + (WR) = (2W-GR)]
Yellow + cyan = green [(WB) + (WR) = (2W-BR)]
3. The color method obtained by equalizing the two intermediate colors or three primary colors is called the blending of multi-color inks. Multi-color ink is also called the third color, and its mixing rule is: (as shown in Figure 1)
Red + Green = Yellow Gray [(Y + M) + (Y + C)] = [Y + K]. Yellow-gray is commonly known as bronze.
Red + blue = red-gray [(Y + M) + (M + C)] = [M + K]. Red-gray is commonly known as jujube.
Blue + Green = Cyan [(M + C) + (Y + C)] = [C + K]. Turquoise is commonly known as olive green.
4.Different color and multi-color deployment
① Uneven color distribution
Magenta 1 + yellow 1 = red, magenta 1 + yellow 3 = dark yellow,
Magenta 3 + yellow 1 = golden red yellow 1 + cyan 1 = green,
Yellow 3 + cyan 1 = emerald green, yellow 1 + cyan 3 = dark green,
Yellow 4 + cyan 1 = apple green magenta 1 + cyan 1 = blue,
Magenta 1 + Cyan 3 = dark blue, Magenta 3 + Cyan 1 = Qinglian
② Multi-color mixing of different colors
Yellow 1 + magenta 1 + cyan 1 = black, yellow 1 + magenta 2 + cyan 1 = brown red,
Yellow 1 + magenta 4 + cyan 1 = red-brown, yellow 1 + magenta 2 + cyan 1 = olive green,
Yellow 1 + magenta 1 + cyan 4 = dark green.
Red + yellow = orange red + blue = purple yellow + blue = green