Heidelberg 5-color oiled press
The basic colors of printing are: black, blue, red, and yellow (k, C, m, y). The four-color printing mentioned in the printing industry is made by overprinting these four basic colors. Five color printing actually adds a special color to the four basic colors, that is, spot color (4C + spot color); however, if you encounter a special color, the printing effect that cannot be achieved with ordinary four colors (such as gold, silver), or the spot color designated by the customer, you must add a group of colors after the printed four color groups, which is called five color printing. In some cases, the fifth color group can To be used for a layer of varnish to increase the surface gloss The improvement of five color printing in printing effect is very obvious. The printing effect is full-bodied and lifelike.
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