1, water-based printing belongs to the color printing method. Color quadrochromatic by electronic color separations to the image, and then through the printing press, the ink from the printing press roller on the transfer to the printing plate, and then the ink from the printed version to the corrugated board. Through chromatic, overlapping color to get the positive image, the original sample box to copy, reproduce the quality of the manuscript.
2, four primary Colors principle: red, yellow, blue, black (strictly speaking, three primary colors: red, yellow, blue)
Colors: Two kinds of primary colors add: red + yellow = orange (salmon, orange);
Red + blue = purple (cherry red, eggplant purple);
Blue + yellow = green (dark, verdant).